mirror of
https://github.com/bspeice/speice.io
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Mass formatting, fix mobile display, fix issues with image wrap-around
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blog/2024-11-15-playing-with-fire/.prettierrc
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4
blog/2024-11-15-playing-with-fire/.prettierrc
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@ -0,0 +1,4 @@
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{
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"tabWidth": 2,
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"semi": true
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}
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@ -1,21 +1,21 @@
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import {SquareCanvas, PainterContext} from "../src/Canvas";
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import {useContext, useEffect} from "react";
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import { PainterContext, SquareCanvas } from "../src/Canvas";
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import { useContext, useEffect } from "react";
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export function Render({f}) {
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const {width, height, setPainter} = useContext(PainterContext);
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useEffect(() => {
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if (width && height) {
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const painter = f({width, height});
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setPainter(painter);
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}
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}, [width, height]);
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return <></>;
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export function Render({ f }) {
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const { width, height, setPainter } = useContext(PainterContext);
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useEffect(() => {
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if (width && height) {
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const painter = f({ width, height });
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setPainter(painter);
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}
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}, [width, height]);
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return <></>;
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}
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export default function Gasket({f}) {
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return (
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<SquareCanvas name={"gasket"}>
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<Render f={f}/>
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</SquareCanvas>
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)
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export default function Gasket({ f }) {
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return (
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<SquareCanvas name={"gasket"}>
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<Render f={f} />
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</SquareCanvas>
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);
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}
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@ -1,49 +1,49 @@
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import {useEffect, useState, useContext, useRef} from "react";
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import {PainterContext} from "../src/Canvas";
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import {chaosGameWeighted} from "./chaosGameWeighted";
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import TeX from '@matejmazur/react-katex';
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import { useContext, useEffect, useState } from "react";
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import { PainterContext } from "../src/Canvas";
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import { chaosGameWeighted } from "./chaosGameWeighted";
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import TeX from "@matejmazur/react-katex";
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import styles from "../src/css/styles.module.css"
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import styles from "../src/css/styles.module.css";
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type Transform = (x: number, y: number) => [number, number];
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export default function GasketWeighted() {
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const [f0Weight, setF0Weight] = useState<number>(1);
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const [f1Weight, setF1Weight] = useState<number>(1);
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const [f2Weight, setF2Weight] = useState<number>(1);
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const [f0Weight, setF0Weight] = useState<number>(1);
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const [f1Weight, setF1Weight] = useState<number>(1);
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const [f2Weight, setF2Weight] = useState<number>(1);
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const f0: Transform = (x, y) => [x / 2, y / 2];
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const f1: Transform = (x, y) => [(x + 1) / 2, y / 2];
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const f2: Transform = (x, y) => [x / 2, (y + 1) / 2];
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const f0: Transform = (x, y) => [x / 2, y / 2];
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const f1: Transform = (x, y) => [(x + 1) / 2, y / 2];
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const f2: Transform = (x, y) => [x / 2, (y + 1) / 2];
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const {width, height, setPainter} = useContext(PainterContext);
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const { width, height, setPainter } = useContext(PainterContext);
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useEffect(() => {
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const transforms: [number, Transform][] = [
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[f0Weight, f0],
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[f1Weight, f1],
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[f2Weight, f2]
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];
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setPainter(chaosGameWeighted({width, height, transforms}));
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}, [f0Weight, f1Weight, f2Weight]);
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useEffect(() => {
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const transforms: [number, Transform][] = [
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[f0Weight, f0],
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[f1Weight, f1],
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[f2Weight, f2]
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];
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setPainter(chaosGameWeighted({ width, height, transforms }));
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}, [f0Weight, f1Weight, f2Weight]);
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const weightInput = (title, weight, setWeight) => (
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<>
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<div className={styles.inputElement}>
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<p><TeX>{title}</TeX>: {weight}</p>
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<input type={'range'} min={0} max={1} step={.01} value={weight}
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onInput={e => setWeight(Number(e.currentTarget.value))}/>
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</div>
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</>
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)
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const weightInput = (title, weight, setWeight) => (
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<>
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<div className={styles.inputElement}>
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<p><TeX>{title}</TeX>: {weight}</p>
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<input type={"range"} min={0} max={1} step={.01} value={weight}
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onInput={e => setWeight(Number(e.currentTarget.value))} />
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</div>
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</>
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);
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return (
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<>
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<div className={styles.inputGroup} style={{display: 'grid', gridTemplateColumns: '1fr 1fr 1fr'}}>
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{weightInput("F_0", f0Weight, setF0Weight)}
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{weightInput("F_1", f1Weight, setF1Weight)}
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{weightInput("F_2", f2Weight, setF2Weight)}
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</div>
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</>
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)
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return (
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<>
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<div className={styles.inputGroup} style={{ display: "grid", gridTemplateColumns: "1fr 1fr 1fr" }}>
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{weightInput("F_0", f0Weight, setF0Weight)}
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{weightInput("F_1", f1Weight, setF1Weight)}
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{weightInput("F_2", f2Weight, setF2Weight)}
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</div>
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</>
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);
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}
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@ -1,10 +1,10 @@
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export function camera(
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size: number,
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x: number,
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y: number
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x: number,
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y: number,
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size: number
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): [number, number] {
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return [
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Math.floor(x * size),
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Math.floor(y * size)
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];
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return [
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Math.floor(x * size),
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Math.floor(y * size)
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];
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}
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@ -6,28 +6,29 @@ const xforms = [
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(x, y) => [x / 2, y / 2],
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(x, y) => [(x + 1) / 2, y / 2],
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(x, y) => [x / 2, (y + 1) / 2]
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]
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];
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function* chaosGame({width, height}) {
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const step = 1000;
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let img = new ImageData(width, height);
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function* chaosGame({ width, height }) {
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let img =
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new ImageData(width, height);
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let [x, y] = [
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randomBiUnit(),
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randomBiUnit()
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];
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for (let c = 0; c < iterations; c++) {
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const i = randomInteger(0, xforms.length);
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[x, y] = xforms[i](x, y);
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for (let i = 0; i < iterations; i++) {
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const index =
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randomInteger(0, xforms.length);
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[x, y] = xforms[index](x, y);
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if (c > 20)
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if (i > 20)
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plot(x, y, img);
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if (c % step === 0)
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if (i % 1000 === 0)
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yield img;
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}
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yield img;
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}
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render(<Gasket f={chaosGame}/>)
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render(<Gasket f={chaosGame} />);
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@ -1,37 +1,41 @@
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// hidden-start
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import { randomBiUnit } from "../src/randomBiUnit";
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import { randomChoice } from "../src/randomChoice";
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import { plot } from "./plot"
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import {Transform} from "../src/transform";
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import { plot } from "./plot";
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import { Transform } from "../src/transform";
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const quality = 0.5;
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const step = 1000;
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// hidden-end
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export type Props = {
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width: number,
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height: number,
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transforms: [number, Transform][]
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width: number,
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height: number,
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transforms: [number, Transform][]
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}
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export function* chaosGameWeighted(
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{width, height, transforms}: Props
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{ width, height, transforms }: Props
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) {
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let img = new ImageData(width, height);
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let img =
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new ImageData(width, height);
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let [x, y] = [
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randomBiUnit(),
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randomBiUnit()
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randomBiUnit(),
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randomBiUnit()
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];
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const iterations = width * height * quality;
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for (let c = 0; c < iterations; c++) {
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const pixels = width * height;
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const iterations = quality * pixels;
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for (let i = 0; i < iterations; i++) {
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// highlight-start
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const [_, xform] = randomChoice(transforms);
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const [_, xform] =
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randomChoice(transforms);
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// highlight-end
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[x, y] = xform(x, y);
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if (c > 20)
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if (i > 20)
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plot(x, y, img);
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if (c % step === 0)
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if (i % step === 0)
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yield img;
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}
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@ -83,7 +83,7 @@ called an "[affine transformation](https://en.wikipedia.org/wiki/Affine_transfor
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The general form of an affine transformation is:
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$$
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F_i(a_i \cdot x + b_i \cdot y + c_i, d_i \cdot x + e_i \cdot y + f_i)
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F_i(a_i x + b_i y + c_i, d_i x + e_i y + f_i)
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$$
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import transformSource from "!!raw-loader!../src/transform"
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@ -102,8 +102,7 @@ c &= 0.5 \\
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d &= 0 \\
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e &= 1 \\
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f &= 1.5 \\
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F_{shift}(x,y) &= (1 \cdot x + 0 \cdot y + 0.5, 0 \cdot x + 1 \cdot y + 0.5) \\
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F_{shift}(x, y) &= (x + 0.5, y + 1.5)
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F_{shift}(x, y) &= (1 \cdot x + 0.5, 1 \cdot y + 1.5)
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\end{align*}
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$$
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@ -155,7 +154,7 @@ explaining the mathematics of iterated function systems:
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> of finite compositions $F_{i_1...i_p}$ of members of $F$.
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:::note
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I've tweaked the wording slightly to match the conventions of the Fractal Flame paper
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I've tweaked the conventions of that paper slightly to match the Fractal Flame paper
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:::
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Before your eyes glaze over, let's unpack this:
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@ -174,15 +173,15 @@ Thus, by applying the functions to fixed points of our system, we will find the
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...then there are some extra details I've glossed over so far.
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First, the Hutchinson paper requires that the functions $F_i$ be _contractive_ for the solution set to exist.
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That is, applying the function to a point must bring it closer to other points. However, as the Fractal Flame
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That is, applying the function to a point must bring it closer to other points. However, as the fractal flame
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algorithm demonstrates, we only need functions to be contractive _on average_. At worst, the system will
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degenerate and produce a bad image.
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Second, we're focused $\mathbb{R}^2$ because we're generating images, but the Hutchinson paper
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Second, we're focused on $\mathbb{R}^2$ because we're generating images, but the Hutchinson paper
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allows for arbitrary dimensions; you could also have 3-dimensional fractal flames.
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Finally, there's a close relationship between fractal flames and [attractors](https://en.wikipedia.org/wiki/Attractor).
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Specifically, the fixed points of $S$ act as attractors for the chaos game (explained in detail below).
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Specifically, the fixed points of $S$ act as attractors for the chaos game (explained in more detail below).
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</details>
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This is still a bit vague, so let's work through an example.
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@ -272,8 +271,8 @@ import chaosGameSource from '!!raw-loader!./chaosGame'
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<small>
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The image here is slightly different than in the paper.
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I think the paper has an error, so I'm choosing to plot the image
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the same way as the [reference implementation](https://github.com/scottdraves/flam3/blob/7fb50c82e90e051f00efcc3123d0e06de26594b2/rect.c#L440-L441).
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I think the paper has an error, so I'm plotting the image
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like the [reference implementation](https://github.com/scottdraves/flam3/blob/7fb50c82e90e051f00efcc3123d0e06de26594b2/rect.c#L440-L441).
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</small>
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### Weights
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@ -292,7 +291,10 @@ import chaosGameWeightedSource from "!!raw-loader!./chaosGameWeighted";
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For Sierpinski's Gasket, we start with equal weighting,
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but changing the transform weights affects how often
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the chaos game "visits" parts of the image:
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the chaos game "visits" parts of the image. If the chaos
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were to run forever, we'd get the same image;
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but because the iteration count is limited,
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some parts may be missing below.
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:::tip
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Double-click the image if you want to save a copy!
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@ -1,10 +1,11 @@
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// hidden-start
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import {camera} from "./cameraGasket"
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import { camera } from "./cameraGasket";
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// hidden-end
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function imageIndex(
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width: number,
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x: number,
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y: number
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y: number,
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width: number
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) {
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return y * (width * 4) + x * 4;
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}
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@ -14,24 +15,26 @@ export function plot(
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y: number,
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img: ImageData
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) {
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let [pixelX, pixelY] = camera(img.width, x, y);
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let [pixelX, pixelY] =
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camera(x, y, img.width);
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// Skip coordinates outside the display
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if (
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pixelX < 0 ||
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pixelX >= img.width ||
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pixelY < 0 ||
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pixelY >= img.height
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)
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return;
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const i = imageIndex(
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img.width,
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pixelX,
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pixelY
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pixelY,
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img.width
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);
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// Skip pixels outside the display range
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if (
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i < 0 ||
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i > img.data.length
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) {
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return;
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}
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// Set the pixel to black by writing 0
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// to the first three elements at the index
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// Set the pixel to black by setting
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// the first three elements to 0
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// (red, green, and blue, respectively),
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// and 255 to the last element (alpha)
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img.data[i] = 0;
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@ -1,12 +1,12 @@
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import Gasket from "./Gasket";
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import { plot } from './plot';
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import { randomBiUnit } from '../src/randomBiUnit';
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import { randomInteger } from '../src/randomInteger';
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import { plot } from "./plot";
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import { randomBiUnit } from "../src/randomBiUnit";
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import { randomInteger } from "../src/randomInteger";
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const Scope = {
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Gasket,
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plot,
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randomBiUnit,
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randomInteger,
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}
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Gasket,
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plot,
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randomBiUnit,
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randomInteger
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};
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export default Scope;
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@ -1,51 +1,52 @@
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import TeX from "@matejmazur/react-katex";
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import {Coefs} from "../src/coefs";
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import { Coefs } from "../src/transform";
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import styles from "../src/css/styles.module.css";
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export interface Props {
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title: String;
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isPost: boolean;
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coefs: Coefs;
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setCoefs: (coefs: Coefs) => void;
|
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resetCoefs: () => void;
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title: String;
|
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isPost: boolean;
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coefs: Coefs;
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setCoefs: (coefs: Coefs) => void;
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resetCoefs: () => void;
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}
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export const CoefEditor = ({title, isPost, coefs, setCoefs, resetCoefs}: Props) => {
|
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const resetButton = <button className={styles.inputReset} onClick={resetCoefs}>Reset</button>
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return (
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<div className={styles.inputGroup} style={{display: 'grid', gridTemplateColumns: '1fr 1fr 1fr'}}>
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<p className={styles.inputTitle} style={{gridColumn: '1/-1'}}>{title} {resetButton}</p>
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<div className={styles.inputElement}>
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<p>{isPost ? <TeX>\alpha</TeX> : 'a'}: {coefs.a}</p>
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<input type={'range'} min={-2} max={2} step={0.01} value={coefs.a}
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onInput={e => setCoefs({...coefs, a: Number(e.currentTarget.value)})}/>
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</div>
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<div className={styles.inputElement}>
|
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<p>{isPost ? <TeX>\beta</TeX> : 'b'}: {coefs.b}</p>
|
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<input type={'range'} min={-2} max={2} step={0.01} value={coefs.b}
|
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onInput={e => setCoefs({...coefs, b: Number(e.currentTarget.value)})}/>
|
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</div>
|
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<div className={styles.inputElement}>
|
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<p>{isPost ? <TeX>\gamma</TeX> : 'c'}: {coefs.c}</p>
|
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<input type={'range'} min={-2} max={2} step={0.01} value={coefs.c}
|
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onInput={e => setCoefs({...coefs, c: Number(e.currentTarget.value)})}/>
|
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</div>
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<div className={styles.inputElement}>
|
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<p>{isPost ? <TeX>\delta</TeX> : 'd'}: {coefs.d}</p>
|
||||
<input type={'range'} min={-2} max={2} step={0.01} value={coefs.d}
|
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onInput={e => setCoefs({...coefs, d: Number(e.currentTarget.value)})}/>
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</div>
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<div className={styles.inputElement}>
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||||
<p>{isPost ? <TeX>\epsilon</TeX> : 'e'}: {coefs.e}</p>
|
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<input type={'range'} min={-2} max={2} step={0.01} value={coefs.e}
|
||||
onInput={e => setCoefs({...coefs, e: Number(e.currentTarget.value)})}/>
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</div>
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<div className={styles.inputElement}>
|
||||
<p>{isPost ? <TeX>\zeta</TeX> : 'f'}: {coefs.f}</p>
|
||||
<input type={'range'} min={-2} max={2} step={0.01} value={coefs.f}
|
||||
onInput={e => setCoefs({...coefs, f: Number(e.currentTarget.value)})}/>
|
||||
</div>
|
||||
</div>
|
||||
)
|
||||
}
|
||||
export const CoefEditor = ({ title, isPost, coefs, setCoefs, resetCoefs }: Props) => {
|
||||
const resetButton = <button className={styles.inputReset} onClick={resetCoefs}>Reset</button>;
|
||||
|
||||
return (
|
||||
<div className={styles.inputGroup} style={{ display: "grid", gridTemplateColumns: "1fr 1fr 1fr" }}>
|
||||
<p className={styles.inputTitle} style={{ gridColumn: "1/-1" }}>{title} {resetButton}</p>
|
||||
<div className={styles.inputElement}>
|
||||
<p>{isPost ? <TeX>\alpha</TeX> : "a"}: {coefs.a}</p>
|
||||
<input type={"range"} min={-2} max={2} step={0.01} value={coefs.a}
|
||||
onInput={e => setCoefs({ ...coefs, a: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<p>{isPost ? <TeX>\beta</TeX> : "b"}: {coefs.b}</p>
|
||||
<input type={"range"} min={-2} max={2} step={0.01} value={coefs.b}
|
||||
onInput={e => setCoefs({ ...coefs, b: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<p>{isPost ? <TeX>\gamma</TeX> : "c"}: {coefs.c}</p>
|
||||
<input type={"range"} min={-2} max={2} step={0.01} value={coefs.c}
|
||||
onInput={e => setCoefs({ ...coefs, c: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<p>{isPost ? <TeX>\delta</TeX> : "d"}: {coefs.d}</p>
|
||||
<input type={"range"} min={-2} max={2} step={0.01} value={coefs.d}
|
||||
onInput={e => setCoefs({ ...coefs, d: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<p>{isPost ? <TeX>\epsilon</TeX> : "e"}: {coefs.e}</p>
|
||||
<input type={"range"} min={-2} max={2} step={0.01} value={coefs.e}
|
||||
onInput={e => setCoefs({ ...coefs, e: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<p>{isPost ? <TeX>\zeta</TeX> : "f"}: {coefs.f}</p>
|
||||
<input type={"range"} min={-2} max={2} step={0.01} value={coefs.f}
|
||||
onInput={e => setCoefs({ ...coefs, f: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
@ -1,68 +1,68 @@
|
||||
import {useContext, useEffect, useState} from "react";
|
||||
import {Transform} from "../src/transform";
|
||||
import * as params from "../src/params"
|
||||
import {PainterContext} from "../src/Canvas"
|
||||
import {chaosGameFinal} from "./chaosGameFinal"
|
||||
import {VariationEditor, VariationProps} from "./VariationEditor"
|
||||
import {applyTransform} from "../src/applyTransform";
|
||||
import {buildBlend} from "./buildBlend";
|
||||
import { useContext, useEffect, useState } from "react";
|
||||
import { Transform } from "../src/transform";
|
||||
import * as params from "../src/params";
|
||||
import { PainterContext } from "../src/Canvas";
|
||||
import { chaosGameFinal } from "./chaosGameFinal";
|
||||
import { VariationEditor, VariationProps } from "./VariationEditor";
|
||||
import { applyTransform } from "../src/applyTransform";
|
||||
import { buildBlend } from "./buildBlend";
|
||||
|
||||
export default function FlameBlend() {
|
||||
const {width, height, setPainter} = useContext(PainterContext);
|
||||
const { width, height, setPainter } = useContext(PainterContext);
|
||||
|
||||
const xform1VariationsDefault: VariationProps = {
|
||||
linear: 0,
|
||||
julia: 1,
|
||||
popcorn: 0,
|
||||
pdj: 0,
|
||||
}
|
||||
const [xform1Variations, setXform1Variations] = useState(xform1VariationsDefault)
|
||||
const resetXform1Variations = () => setXform1Variations(xform1VariationsDefault);
|
||||
const xform1VariationsDefault: VariationProps = {
|
||||
linear: 0,
|
||||
julia: 1,
|
||||
popcorn: 0,
|
||||
pdj: 0
|
||||
};
|
||||
const [xform1Variations, setXform1Variations] = useState(xform1VariationsDefault);
|
||||
const resetXform1Variations = () => setXform1Variations(xform1VariationsDefault);
|
||||
|
||||
const xform2VariationsDefault: VariationProps = {
|
||||
linear: 1,
|
||||
julia: 0,
|
||||
popcorn: 1,
|
||||
pdj: 0
|
||||
}
|
||||
const [xform2Variations, setXform2Variations] = useState(xform2VariationsDefault)
|
||||
const resetXform2Variations = () => setXform2Variations(xform2VariationsDefault);
|
||||
const xform2VariationsDefault: VariationProps = {
|
||||
linear: 1,
|
||||
julia: 0,
|
||||
popcorn: 1,
|
||||
pdj: 0
|
||||
};
|
||||
const [xform2Variations, setXform2Variations] = useState(xform2VariationsDefault);
|
||||
const resetXform2Variations = () => setXform2Variations(xform2VariationsDefault);
|
||||
|
||||
const xform3VariationsDefault: VariationProps = {
|
||||
linear: 0,
|
||||
julia: 0,
|
||||
popcorn: 0,
|
||||
pdj: 1
|
||||
}
|
||||
const [xform3Variations, setXform3Variations] = useState(xform3VariationsDefault)
|
||||
const resetXform3Variations = () => setXform3Variations(xform3VariationsDefault);
|
||||
const xform3VariationsDefault: VariationProps = {
|
||||
linear: 0,
|
||||
julia: 0,
|
||||
popcorn: 0,
|
||||
pdj: 1
|
||||
};
|
||||
const [xform3Variations, setXform3Variations] = useState(xform3VariationsDefault);
|
||||
const resetXform3Variations = () => setXform3Variations(xform3VariationsDefault);
|
||||
|
||||
const identityXform: Transform = (x, y) => [x, y];
|
||||
const identityXform: Transform = (x, y) => [x, y];
|
||||
|
||||
useEffect(() => {
|
||||
const transforms: [number, Transform][] = [
|
||||
[params.xform1Weight, applyTransform(params.xform1Coefs, buildBlend(params.xform1Coefs, xform1Variations))],
|
||||
[params.xform2Weight, applyTransform(params.xform2Coefs, buildBlend(params.xform2Coefs, xform2Variations))],
|
||||
[params.xform3Weight, applyTransform(params.xform3Coefs, buildBlend(params.xform3Coefs, xform3Variations))]
|
||||
]
|
||||
useEffect(() => {
|
||||
const transforms: [number, Transform][] = [
|
||||
[params.xform1Weight, applyTransform(params.xform1Coefs, buildBlend(params.xform1Coefs, xform1Variations))],
|
||||
[params.xform2Weight, applyTransform(params.xform2Coefs, buildBlend(params.xform2Coefs, xform2Variations))],
|
||||
[params.xform3Weight, applyTransform(params.xform3Coefs, buildBlend(params.xform3Coefs, xform3Variations))]
|
||||
];
|
||||
|
||||
const gameParams = {
|
||||
width,
|
||||
height,
|
||||
transforms,
|
||||
final: identityXform
|
||||
}
|
||||
setPainter(chaosGameFinal(gameParams));
|
||||
}, [xform1Variations, xform2Variations, xform3Variations]);
|
||||
const gameParams = {
|
||||
width,
|
||||
height,
|
||||
transforms,
|
||||
final: identityXform
|
||||
};
|
||||
setPainter(chaosGameFinal(gameParams));
|
||||
}, [xform1Variations, xform2Variations, xform3Variations]);
|
||||
|
||||
return (
|
||||
<>
|
||||
<VariationEditor title={"Transform 1"} variations={xform1Variations} setVariations={setXform1Variations}
|
||||
resetVariations={resetXform1Variations}/>
|
||||
<VariationEditor title={"Transform 2"} variations={xform2Variations} setVariations={setXform2Variations}
|
||||
resetVariations={resetXform2Variations}/>
|
||||
<VariationEditor title={"Transform 3"} variations={xform3Variations} setVariations={setXform3Variations}
|
||||
resetVariations={resetXform3Variations}/>
|
||||
</>
|
||||
)
|
||||
return (
|
||||
<>
|
||||
<VariationEditor title={"Transform 1"} variations={xform1Variations} setVariations={setXform1Variations}
|
||||
resetVariations={resetXform1Variations} />
|
||||
<VariationEditor title={"Transform 2"} variations={xform2Variations} setVariations={setXform2Variations}
|
||||
resetVariations={resetXform2Variations} />
|
||||
<VariationEditor title={"Transform 3"} variations={xform3Variations} setVariations={setXform3Variations}
|
||||
resetVariations={resetXform3Variations} />
|
||||
</>
|
||||
);
|
||||
}
|
||||
@ -1,46 +1,46 @@
|
||||
import {useContext, useEffect, useState} from "react";
|
||||
import {Coefs} from "../src/coefs"
|
||||
import { useContext, useEffect, useState } from "react";
|
||||
import { Coefs } from "../src/transform";
|
||||
import * as params from "../src/params";
|
||||
import {PainterContext} from "../src/Canvas"
|
||||
import {buildBlend} from "./buildBlend";
|
||||
import {chaosGameFinal} from "./chaosGameFinal"
|
||||
import {VariationEditor, VariationProps} from "./VariationEditor";
|
||||
import {CoefEditor} from "./CoefEditor";
|
||||
import {applyPost, applyTransform} from "../src/applyTransform";
|
||||
import { PainterContext } from "../src/Canvas";
|
||||
import { buildBlend } from "./buildBlend";
|
||||
import { chaosGameFinal } from "./chaosGameFinal";
|
||||
import { VariationEditor, VariationProps } from "./VariationEditor";
|
||||
import { CoefEditor } from "./CoefEditor";
|
||||
import { applyPost, applyTransform } from "../src/applyTransform";
|
||||
|
||||
export default function FlameFinal() {
|
||||
const {width, height, setPainter} = useContext(PainterContext);
|
||||
const { width, height, setPainter } = useContext(PainterContext);
|
||||
|
||||
const [xformFinalCoefs, setXformFinalCoefs] = useState<Coefs>(params.xformFinalCoefs);
|
||||
const resetXformFinalCoefs = () => setXformFinalCoefs(params.xformFinalCoefs);
|
||||
const [xformFinalCoefs, setXformFinalCoefs] = useState<Coefs>(params.xformFinalCoefs);
|
||||
const resetXformFinalCoefs = () => setXformFinalCoefs(params.xformFinalCoefs);
|
||||
|
||||
const xformFinalVariationsDefault: VariationProps = {
|
||||
linear: 0,
|
||||
julia: 1,
|
||||
popcorn: 0,
|
||||
pdj: 0
|
||||
}
|
||||
const [xformFinalVariations, setXformFinalVariations] = useState<VariationProps>(xformFinalVariationsDefault);
|
||||
const resetXformFinalVariations = () => setXformFinalVariations(xformFinalVariationsDefault);
|
||||
const xformFinalVariationsDefault: VariationProps = {
|
||||
linear: 0,
|
||||
julia: 1,
|
||||
popcorn: 0,
|
||||
pdj: 0
|
||||
};
|
||||
const [xformFinalVariations, setXformFinalVariations] = useState<VariationProps>(xformFinalVariationsDefault);
|
||||
const resetXformFinalVariations = () => setXformFinalVariations(xformFinalVariationsDefault);
|
||||
|
||||
const [xformFinalCoefsPost, setXformFinalCoefsPost] = useState<Coefs>(params.xformFinalCoefsPost);
|
||||
const resetXformFinalCoefsPost = () => setXformFinalCoefsPost(params.xformFinalCoefsPost);
|
||||
const [xformFinalCoefsPost, setXformFinalCoefsPost] = useState<Coefs>(params.xformFinalCoefsPost);
|
||||
const resetXformFinalCoefsPost = () => setXformFinalCoefsPost(params.xformFinalCoefsPost);
|
||||
|
||||
useEffect(() => {
|
||||
const finalBlend = buildBlend(xformFinalCoefs, xformFinalVariations);
|
||||
const finalXform = applyPost(xformFinalCoefsPost, applyTransform(xformFinalCoefs, finalBlend));
|
||||
useEffect(() => {
|
||||
const finalBlend = buildBlend(xformFinalCoefs, xformFinalVariations);
|
||||
const finalXform = applyPost(xformFinalCoefsPost, applyTransform(xformFinalCoefs, finalBlend));
|
||||
|
||||
setPainter(chaosGameFinal({width, height, transforms: params.xforms, final: finalXform}));
|
||||
}, [xformFinalCoefs, xformFinalVariations, xformFinalCoefsPost]);
|
||||
setPainter(chaosGameFinal({ width, height, transforms: params.xforms, final: finalXform }));
|
||||
}, [xformFinalCoefs, xformFinalVariations, xformFinalCoefsPost]);
|
||||
|
||||
return (
|
||||
<>
|
||||
<CoefEditor title={"Final Transform"} isPost={false} coefs={xformFinalCoefs} setCoefs={setXformFinalCoefs}
|
||||
resetCoefs={resetXformFinalCoefs}/>
|
||||
<VariationEditor title={"Final Transform Variations"} variations={xformFinalVariations}
|
||||
setVariations={setXformFinalVariations} resetVariations={resetXformFinalVariations}/>
|
||||
<CoefEditor title={"Final Transform Post"} isPost={true} coefs={xformFinalCoefsPost}
|
||||
setCoefs={setXformFinalCoefsPost} resetCoefs={resetXformFinalCoefsPost}/>
|
||||
</>
|
||||
)
|
||||
return (
|
||||
<>
|
||||
<CoefEditor title={"Final Transform"} isPost={false} coefs={xformFinalCoefs} setCoefs={setXformFinalCoefs}
|
||||
resetCoefs={resetXformFinalCoefs} />
|
||||
<VariationEditor title={"Final Transform Variations"} variations={xformFinalVariations}
|
||||
setVariations={setXformFinalVariations} resetVariations={resetXformFinalVariations} />
|
||||
<CoefEditor title={"Final Transform Post"} isPost={true} coefs={xformFinalCoefsPost}
|
||||
setCoefs={setXformFinalCoefsPost} resetCoefs={resetXformFinalCoefsPost} />
|
||||
</>
|
||||
);
|
||||
}
|
||||
@ -1,46 +1,46 @@
|
||||
import {useContext, useEffect, useState} from "react";
|
||||
import {Coefs} from "../src/coefs"
|
||||
import {Transform} from "../src/transform";
|
||||
import { useContext, useEffect, useState } from "react";
|
||||
import { applyTransform } from "../src/applyTransform";
|
||||
import { Coefs, Transform } from "../src/transform";
|
||||
import * as params from "../src/params";
|
||||
import {PainterContext} from "../src/Canvas"
|
||||
import {chaosGameFinal, Props as ChaosGameFinalProps} from "./chaosGameFinal"
|
||||
import {CoefEditor} from "./CoefEditor"
|
||||
import {applyPost, applyTransform} from "@site/blog/2024-11-15-playing-with-fire/src/applyTransform";
|
||||
import { PainterContext } from "../src/Canvas";
|
||||
import { chaosGameFinal, Props as ChaosGameFinalProps } from "./chaosGameFinal";
|
||||
import { CoefEditor } from "./CoefEditor";
|
||||
import { transformPost } from "./post";
|
||||
|
||||
export default function FlamePost() {
|
||||
const {width, height, setPainter} = useContext(PainterContext);
|
||||
const { width, height, setPainter } = useContext(PainterContext);
|
||||
|
||||
const [xform1CoefsPost, setXform1CoefsPost] = useState<Coefs>(params.xform1CoefsPost);
|
||||
const resetXform1CoefsPost = () => setXform1CoefsPost(params.xform1CoefsPost);
|
||||
const [xform1CoefsPost, setXform1CoefsPost] = useState<Coefs>(params.xform1CoefsPost);
|
||||
const resetXform1CoefsPost = () => setXform1CoefsPost(params.xform1CoefsPost);
|
||||
|
||||
const [xform2CoefsPost, setXform2CoefsPost] = useState<Coefs>(params.xform2CoefsPost);
|
||||
const resetXform2CoefsPost = () => setXform2CoefsPost(params.xform2CoefsPost);
|
||||
const [xform2CoefsPost, setXform2CoefsPost] = useState<Coefs>(params.xform2CoefsPost);
|
||||
const resetXform2CoefsPost = () => setXform2CoefsPost(params.xform2CoefsPost);
|
||||
|
||||
const [xform3CoefsPost, setXform3CoefsPost] = useState<Coefs>(params.xform3CoefsPost);
|
||||
const resetXform3CoefsPost = () => setXform3CoefsPost(params.xform3CoefsPost);
|
||||
const [xform3CoefsPost, setXform3CoefsPost] = useState<Coefs>(params.xform3CoefsPost);
|
||||
const resetXform3CoefsPost = () => setXform3CoefsPost(params.xform3CoefsPost);
|
||||
|
||||
const identityXform: Transform = (x, y) => [x, y];
|
||||
const identityXform: Transform = (x, y) => [x, y];
|
||||
|
||||
const gameParams: ChaosGameFinalProps = {
|
||||
width,
|
||||
height,
|
||||
transforms: [
|
||||
[params.xform1Weight, applyPost(xform1CoefsPost, applyTransform(params.xform1Coefs, params.xform1Variations))],
|
||||
[params.xform2Weight, applyPost(xform2CoefsPost, applyTransform(params.xform2Coefs, params.xform2Variations))],
|
||||
[params.xform3Weight, applyPost(xform3CoefsPost, applyTransform(params.xform3Coefs, params.xform3Variations))],
|
||||
],
|
||||
final: identityXform
|
||||
}
|
||||
useEffect(() => setPainter(chaosGameFinal(gameParams)), [xform1CoefsPost, xform2CoefsPost, xform3CoefsPost]);
|
||||
const gameParams: ChaosGameFinalProps = {
|
||||
width,
|
||||
height,
|
||||
transforms: [
|
||||
[params.xform1Weight, transformPost(applyTransform(params.xform1Coefs, params.xform1Variations), xform1CoefsPost)],
|
||||
[params.xform2Weight, transformPost(applyTransform(params.xform2Coefs, params.xform2Variations), xform2CoefsPost)],
|
||||
[params.xform3Weight, transformPost(applyTransform(params.xform3Coefs, params.xform3Variations), xform3CoefsPost)]
|
||||
],
|
||||
final: identityXform
|
||||
};
|
||||
useEffect(() => setPainter(chaosGameFinal(gameParams)), [xform1CoefsPost, xform2CoefsPost, xform3CoefsPost]);
|
||||
|
||||
return (
|
||||
<>
|
||||
<CoefEditor title={"Transform 1 Post"} isPost={true} coefs={xform1CoefsPost} setCoefs={setXform1CoefsPost}
|
||||
resetCoefs={resetXform1CoefsPost}/>
|
||||
<CoefEditor title={"Transform 2 Post"} isPost={true} coefs={xform2CoefsPost} setCoefs={setXform2CoefsPost}
|
||||
resetCoefs={resetXform2CoefsPost}/>
|
||||
<CoefEditor title={"Transform 3 Post"} isPost={true} coefs={xform3CoefsPost} setCoefs={setXform3CoefsPost}
|
||||
resetCoefs={resetXform3CoefsPost}/>
|
||||
</>
|
||||
)
|
||||
return (
|
||||
<>
|
||||
<CoefEditor title={"Transform 1 Post"} isPost={true} coefs={xform1CoefsPost} setCoefs={setXform1CoefsPost}
|
||||
resetCoefs={resetXform1CoefsPost} />
|
||||
<CoefEditor title={"Transform 2 Post"} isPost={true} coefs={xform2CoefsPost} setCoefs={setXform2CoefsPost}
|
||||
resetCoefs={resetXform2CoefsPost} />
|
||||
<CoefEditor title={"Transform 3 Post"} isPost={true} coefs={xform3CoefsPost} setCoefs={setXform3CoefsPost}
|
||||
resetCoefs={resetXform3CoefsPost} />
|
||||
</>
|
||||
);
|
||||
}
|
||||
@ -1,45 +1,45 @@
|
||||
import styles from "../src/css/styles.module.css"
|
||||
import styles from "../src/css/styles.module.css";
|
||||
|
||||
export interface VariationProps {
|
||||
linear: number;
|
||||
julia: number;
|
||||
popcorn: number;
|
||||
pdj: number;
|
||||
linear: number;
|
||||
julia: number;
|
||||
popcorn: number;
|
||||
pdj: number;
|
||||
}
|
||||
|
||||
export interface Props {
|
||||
title: String;
|
||||
variations: VariationProps;
|
||||
setVariations: (variations: VariationProps) => void;
|
||||
resetVariations: () => void;
|
||||
title: String;
|
||||
variations: VariationProps;
|
||||
setVariations: (variations: VariationProps) => void;
|
||||
resetVariations: () => void;
|
||||
}
|
||||
|
||||
export const VariationEditor = ({title, variations, setVariations, resetVariations}: Props) => {
|
||||
const resetButton = <button className={styles.inputReset} onClick={resetVariations}>Reset</button>
|
||||
export const VariationEditor = ({ title, variations, setVariations, resetVariations }: Props) => {
|
||||
const resetButton = <button className={styles.inputReset} onClick={resetVariations}>Reset</button>;
|
||||
|
||||
return (
|
||||
<div className={styles.inputGroup} style={{display: 'grid', gridTemplateColumns: '1fr 1fr'}}>
|
||||
<p className={styles.inputTitle} style={{gridColumn: '1/-1'}}>{title} {resetButton}</p>
|
||||
<div className={styles.inputElement}>
|
||||
<span>Linear: {variations.linear}</span>
|
||||
<input type={'range'} min={0} max={1} step={0.01} style={{width: '100%'}} value={variations.linear}
|
||||
onInput={e => setVariations({...variations, linear: Number(e.currentTarget.value)})}/>
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<span>Julia: {variations.julia}</span>
|
||||
<input type={'range'} min={0} max={1} step={0.01} style={{width: '100%'}} value={variations.julia}
|
||||
onInput={e => setVariations({...variations, julia: Number(e.currentTarget.value)})}/>
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<span>Popcorn: {variations.popcorn}</span>
|
||||
<input type={'range'} min={0} max={1} step={0.01} style={{width: '100%'}} value={variations.popcorn}
|
||||
onInput={e => setVariations({...variations, popcorn: Number(e.currentTarget.value)})}/>
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<span>PDJ: {variations.pdj}</span>
|
||||
<input type={'range'} min={0} max={1} step={0.01} style={{width: '100%'}} value={variations.pdj}
|
||||
onInput={e => setVariations({...variations, pdj: Number(e.currentTarget.value)})}/>
|
||||
</div>
|
||||
</div>
|
||||
)
|
||||
}
|
||||
return (
|
||||
<div className={styles.inputGroup} style={{ display: "grid", gridTemplateColumns: "1fr 1fr" }}>
|
||||
<p className={styles.inputTitle} style={{ gridColumn: "1/-1" }}>{title} {resetButton}</p>
|
||||
<div className={styles.inputElement}>
|
||||
<span>Linear: {variations.linear}</span>
|
||||
<input type={"range"} min={0} max={1} step={0.01} style={{ width: "100%" }} value={variations.linear}
|
||||
onInput={e => setVariations({ ...variations, linear: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<span>Julia: {variations.julia}</span>
|
||||
<input type={"range"} min={0} max={1} step={0.01} style={{ width: "100%" }} value={variations.julia}
|
||||
onInput={e => setVariations({ ...variations, julia: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<span>Popcorn: {variations.popcorn}</span>
|
||||
<input type={"range"} min={0} max={1} step={0.01} style={{ width: "100%" }} value={variations.popcorn}
|
||||
onInput={e => setVariations({ ...variations, popcorn: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<span>PDJ: {variations.pdj}</span>
|
||||
<input type={"range"} min={0} max={1} step={0.01} style={{ width: "100%" }} value={variations.pdj}
|
||||
onInput={e => setVariations({ ...variations, pdj: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
@ -1,17 +1,17 @@
|
||||
import {Coefs} from "../src/coefs";
|
||||
import {VariationProps} from "./VariationEditor";
|
||||
import {linear} from "../src/linear";
|
||||
import {julia} from "../src/julia";
|
||||
import {popcorn} from "../src/popcorn";
|
||||
import {pdj} from "../src/pdj";
|
||||
import {pdjParams} from "../src/params";
|
||||
import {VariationBlend} from "../src/blend";
|
||||
import { Coefs } from "../src/transform";
|
||||
import { VariationProps } from "./VariationEditor";
|
||||
import { linear } from "../src/linear";
|
||||
import { julia } from "../src/julia";
|
||||
import { popcorn } from "../src/popcorn";
|
||||
import { pdj } from "../src/pdj";
|
||||
import { pdjParams } from "../src/params";
|
||||
import { Blend } from "../src/blend";
|
||||
|
||||
export function buildBlend(coefs: Coefs, variations: VariationProps): VariationBlend {
|
||||
return [
|
||||
[variations.linear, linear],
|
||||
[variations.julia, julia],
|
||||
[variations.popcorn, popcorn(coefs)],
|
||||
[variations.pdj, pdj(pdjParams)]
|
||||
]
|
||||
export function buildBlend(coefs: Coefs, variations: VariationProps): Blend {
|
||||
return [
|
||||
[variations.linear, linear],
|
||||
[variations.julia, julia],
|
||||
[variations.popcorn, popcorn(coefs)],
|
||||
[variations.pdj, pdj(pdjParams)]
|
||||
];
|
||||
}
|
||||
@ -1,37 +1,51 @@
|
||||
// hidden-start
|
||||
import { randomBiUnit } from "../src/randomBiUnit";
|
||||
import { randomChoice } from "../src/randomChoice";
|
||||
import { plotBinary as plot } from "../src/plotBinary"
|
||||
import {Transform} from "../src/transform";
|
||||
import {Props as ChaosGameWeightedProps} from "../1-introduction/chaosGameWeighted";
|
||||
import { plotBinary as plot } from "../src/plotBinary";
|
||||
import { Transform } from "../src/transform";
|
||||
import { Props as WeightedProps } from "../1-introduction/chaosGameWeighted";
|
||||
|
||||
const quality = 0.5;
|
||||
const step = 1000;
|
||||
// hidden-end
|
||||
export type Props = ChaosGameWeightedProps & {
|
||||
final: Transform,
|
||||
export type Props = WeightedProps & {
|
||||
final: Transform,
|
||||
}
|
||||
export function* chaosGameFinal({width, height, transforms, final}: Props) {
|
||||
let image = new ImageData(width, height);
|
||||
let [x, y] = [randomBiUnit(), randomBiUnit()];
|
||||
|
||||
const iterations = width * height * quality;
|
||||
for (let i = 0; i < iterations; i++) {
|
||||
const [_, transform] = randomChoice(transforms);
|
||||
[x, y] = transform(x, y);
|
||||
export function* chaosGameFinal(
|
||||
{
|
||||
width,
|
||||
height,
|
||||
transforms,
|
||||
final
|
||||
}: Props
|
||||
) {
|
||||
let img =
|
||||
new ImageData(width, height);
|
||||
let [x, y] = [
|
||||
randomBiUnit(),
|
||||
randomBiUnit()
|
||||
];
|
||||
|
||||
// highlight-start
|
||||
const [finalX, finalY] = final(x, y);
|
||||
// highlight-end
|
||||
const pixels = width * height;
|
||||
const iterations = quality * pixels;
|
||||
for (let i = 0; i < iterations; i++) {
|
||||
const [_, transform] =
|
||||
randomChoice(transforms);
|
||||
[x, y] = transform(x, y);
|
||||
|
||||
if (i > 20)
|
||||
// highlight-start
|
||||
plot(finalX, finalY, image);
|
||||
// highlight-end
|
||||
// highlight-start
|
||||
const [finalX, finalY] = final(x, y);
|
||||
// highlight-end
|
||||
|
||||
if (i % step === 0)
|
||||
yield image;
|
||||
}
|
||||
if (i > 20)
|
||||
// highlight-start
|
||||
plot(finalX, finalY, img);
|
||||
// highlight-end
|
||||
|
||||
yield image;
|
||||
if (i % step === 0)
|
||||
yield img;
|
||||
}
|
||||
|
||||
yield img;
|
||||
}
|
||||
@ -34,7 +34,7 @@ This leads us to the first big innovation of the Fractal Flame algorithm: adding
|
||||
after the affine transform. These functions are called "variations":
|
||||
|
||||
$$
|
||||
F_i(x, y) = V_j(a_i \cdot x + b_i \cdot y + c_i, d_i \cdot x + e_i \cdot y + f_i)
|
||||
F_i(x, y) = V_j(a_i x + b_i y + c_i, d_i x + e_i y + f_i)
|
||||
$$
|
||||
|
||||
import variationSource from '!!raw-loader!../src/variation'
|
||||
@ -96,7 +96,7 @@ Some variations rely on knowing the transform's affine coefficients; they're cal
|
||||
For the popcorn variation, we use $c$ and $f$:
|
||||
|
||||
$$
|
||||
V_{17}(x,y) = (x + c \cdot \text{sin}(\text{tan }3y), y + f \cdot \text{sin}(\text{tan }3x))
|
||||
V_{17}(x,y) = (x + c\ \text{sin}(\text{tan }3y), y + f\ \text{sin}(\text{tan }3x))
|
||||
$$
|
||||
|
||||
import popcornSrc from '!!raw-loader!../src/popcorn'
|
||||
@ -109,8 +109,8 @@ Some variations have extra parameters; they're called "parametric variations."
|
||||
For the PDJ variation, there are four extra parameters we can choose:
|
||||
|
||||
$$
|
||||
p_1 = \text{pdj.a} \hspace{0.2cm} p_2 = \text{pdj.b} \hspace{0.2cm} p_3 = \text{pdj.c} \hspace{0.2cm} p_4 = \text{pdj.d} \\
|
||||
V_{24} = (\text{sin}(p_1 \cdot y) - \text{cos}(p_2 \cdot x), \text{sin}(p_3 \cdot x) - \text{cos}(p_4 \cdot y))
|
||||
p_1 = \text{pdj.a} \hspace{0.1cm} p_2 = \text{pdj.b} \hspace{0.1cm} p_3 = \text{pdj.c} \hspace{0.1cm} p_4 = \text{pdj.d} \\
|
||||
V_{24} = (\text{sin}(p_1 y) - \text{cos}(p_2 x), \text{sin}(p_3 x) - \text{cos}(p_4 y))
|
||||
$$
|
||||
|
||||
import pdjSrc from '!!raw-loader!../src/pdj'
|
||||
@ -124,7 +124,7 @@ Each variation receives the same $x$ and $y$ inputs, and we add together each va
|
||||
We'll also give each variation a weight ($v_{ij}$) that changes how much it contributes to the result:
|
||||
|
||||
$$
|
||||
F_i(x,y) = \sum_{j} v_{ij} V_j(a_i \cdot x + b_i \cdot y + c_i, \hspace{0.2cm} d_i \cdot x + e_i \cdot y + f_i)
|
||||
F_i(x,y) = \sum_{j} v_{ij} V_j(x, y)
|
||||
$$
|
||||
|
||||
The formula looks intimidating, but it's not hard to implement:
|
||||
|
||||
@ -1,7 +1,11 @@
|
||||
// hidden-start
|
||||
import {Coefs} from "../src/coefs";
|
||||
import {Transform} from "../src/transform";
|
||||
import {applyCoefs} from "../src/coefs";
|
||||
import { applyCoefs, Coefs, Transform } from "../src/transform";
|
||||
// hidden-end
|
||||
export const transformPost = (transform: Transform, coefs: Coefs): Transform =>
|
||||
(x, y) => applyCoefs(...transform(x, y), coefs)
|
||||
export const transformPost = (
|
||||
transform: Transform,
|
||||
coefs: Coefs
|
||||
): Transform =>
|
||||
(x, y) => {
|
||||
[x, y] = transform(x, y);
|
||||
return applyCoefs(x, y, coefs);
|
||||
}
|
||||
@ -1,174 +1,181 @@
|
||||
import React, {useContext, useEffect, useMemo, useRef, useState} from "react";
|
||||
import React, { useContext, useEffect, useMemo, useRef, useState } from "react";
|
||||
import * as params from "../src/params";
|
||||
import {PainterContext} from "../src/Canvas";
|
||||
import {colorFromPalette} from "./colorFromPalette";
|
||||
import {chaosGameColor, Props as ChaosGameColorProps, TransformColor} from "./chaosGameColor";
|
||||
import { PainterContext } from "../src/Canvas";
|
||||
import { colorFromPalette } from "./colorFromPalette";
|
||||
import { chaosGameColor, Props as ChaosGameColorProps, TransformColor } from "./chaosGameColor";
|
||||
|
||||
import styles from "../src/css/styles.module.css";
|
||||
import {histIndex} from "../src/camera";
|
||||
import {useColorMode} from "@docusaurus/theme-common";
|
||||
import { histIndex } from "../src/camera";
|
||||
import { useColorMode } from "@docusaurus/theme-common";
|
||||
|
||||
type PaletteBarProps = {
|
||||
height: number;
|
||||
palette: number[];
|
||||
children?: React.ReactNode;
|
||||
height: number;
|
||||
palette: number[];
|
||||
children?: React.ReactNode;
|
||||
}
|
||||
export const PaletteBar: React.FC<PaletteBarProps> = ({height, palette, children}) => {
|
||||
const sizingRef = useRef<HTMLDivElement>(null);
|
||||
const [width, setWidth] = useState(0);
|
||||
useEffect(() => {
|
||||
if (sizingRef) {
|
||||
setWidth(sizingRef.current.offsetWidth);
|
||||
}
|
||||
}, [sizingRef]);
|
||||
export const PaletteBar: React.FC<PaletteBarProps> = ({ height, palette, children }) => {
|
||||
const sizingRef = useRef<HTMLDivElement>(null);
|
||||
const [width, setWidth] = useState(0);
|
||||
useEffect(() => {
|
||||
if (sizingRef) {
|
||||
setWidth(sizingRef.current.offsetWidth);
|
||||
}
|
||||
}, [sizingRef]);
|
||||
|
||||
const canvasRef = useRef<HTMLCanvasElement>(null);
|
||||
const paletteImage = useMemo(() => {
|
||||
if (width === 0) {
|
||||
return;
|
||||
}
|
||||
const canvasRef = useRef<HTMLCanvasElement>(null);
|
||||
const paletteImage = useMemo(() => {
|
||||
if (width === 0) {
|
||||
return;
|
||||
}
|
||||
|
||||
const image = new ImageData(width, height);
|
||||
for (let x = 0; x < width; x++) {
|
||||
const colorIndex = x / width;
|
||||
const [r, g, b] = colorFromPalette(palette, colorIndex);
|
||||
const image = new ImageData(width, height);
|
||||
for (let x = 0; x < width; x++) {
|
||||
const colorIndex = x / width;
|
||||
const [r, g, b] = colorFromPalette(palette, colorIndex);
|
||||
|
||||
for (let y = 0; y < height; y++) {
|
||||
const pixelIndex = histIndex(x, y, width, 4);
|
||||
image.data[pixelIndex] = r * 0xff;
|
||||
image.data[pixelIndex + 1] = g * 0xff;
|
||||
image.data[pixelIndex + 2] = b * 0xff;
|
||||
image.data[pixelIndex + 3] = 0xff;
|
||||
}
|
||||
}
|
||||
for (let y = 0; y < height; y++) {
|
||||
const pixelIndex = histIndex(x, y, width, 4);
|
||||
image.data[pixelIndex] = r * 0xff;
|
||||
image.data[pixelIndex + 1] = g * 0xff;
|
||||
image.data[pixelIndex + 2] = b * 0xff;
|
||||
image.data[pixelIndex + 3] = 0xff;
|
||||
}
|
||||
}
|
||||
|
||||
return image;
|
||||
}, [width, height, palette]);
|
||||
return image;
|
||||
}, [width, height, palette]);
|
||||
|
||||
useEffect(() => {
|
||||
if (canvasRef && paletteImage) {
|
||||
canvasRef.current.getContext("2d").putImageData(paletteImage, 0, 0);
|
||||
}
|
||||
}, [canvasRef, paletteImage]);
|
||||
useEffect(() => {
|
||||
if (canvasRef && paletteImage) {
|
||||
canvasRef.current.getContext("2d").putImageData(paletteImage, 0, 0);
|
||||
}
|
||||
}, [canvasRef, paletteImage]);
|
||||
|
||||
const canvasStyle = {filter: useColorMode().colorMode === 'dark' ? 'invert(1)' : ''};
|
||||
const canvasStyle = { filter: useColorMode().colorMode === "dark" ? "invert(1)" : "" };
|
||||
|
||||
return (
|
||||
<>
|
||||
<div ref={sizingRef} style={{width: '100%', height}}>
|
||||
{width > 0 ? <canvas ref={canvasRef} width={width} height={height} style={canvasStyle}/> : null}
|
||||
</div>
|
||||
{children}
|
||||
</>
|
||||
)
|
||||
}
|
||||
return (
|
||||
<>
|
||||
<div ref={sizingRef} style={{ width: "100%", height }}>
|
||||
{width > 0 ? <canvas ref={canvasRef} width={width} height={height} style={canvasStyle} /> : null}
|
||||
</div>
|
||||
{children}
|
||||
</>
|
||||
);
|
||||
};
|
||||
|
||||
type ColorEditorProps = {
|
||||
title: string;
|
||||
palette: number[];
|
||||
transformColor: TransformColor;
|
||||
setTransformColor: (transformColor: TransformColor) => void;
|
||||
resetTransformColor: () => void;
|
||||
children?: React.ReactNode;
|
||||
title: string;
|
||||
palette: number[];
|
||||
transformColor: TransformColor;
|
||||
setTransformColor: (transformColor: TransformColor) => void;
|
||||
resetTransformColor: () => void;
|
||||
children?: React.ReactNode;
|
||||
}
|
||||
const ColorEditor: React.FC<ColorEditorProps> = ({title, palette, transformColor, setTransformColor, resetTransformColor, children}) => {
|
||||
const resetButton = <button className={styles.inputReset} onClick={resetTransformColor}>Reset</button>
|
||||
const ColorEditor: React.FC<ColorEditorProps> = (
|
||||
{
|
||||
title,
|
||||
palette,
|
||||
transformColor,
|
||||
setTransformColor,
|
||||
resetTransformColor,
|
||||
children
|
||||
}) => {
|
||||
const resetButton = <button className={styles.inputReset} onClick={resetTransformColor}>Reset</button>;
|
||||
|
||||
const [r, g, b] = colorFromPalette(palette, transformColor.color);
|
||||
const colorCss = `rgb(${Math.floor(r * 0xff)},${Math.floor(g * 0xff)},${Math.floor(b * 0xff)})`;
|
||||
const [r, g, b] = colorFromPalette(palette, transformColor.color);
|
||||
const colorCss = `rgb(${Math.floor(r * 0xff)},${Math.floor(g * 0xff)},${Math.floor(b * 0xff)})`;
|
||||
|
||||
const {colorMode} = useColorMode();
|
||||
const { colorMode } = useColorMode();
|
||||
|
||||
return (
|
||||
<>
|
||||
<div className={styles.inputGroup} style={{display: 'grid', gridTemplateColumns: '2fr 2fr 1fr'}}>
|
||||
<p className={styles.inputTitle} style={{gridColumn: '1/-1'}}>{title} {resetButton}</p>
|
||||
<div className={styles.inputElement}>
|
||||
<p>Color: {transformColor.color}</p>
|
||||
<input type={'range'} min={0} max={1} step={.001} value={transformColor.color}
|
||||
onInput={e => setTransformColor({...transformColor, color: Number(e.currentTarget.value)})}/>
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<p>Speed: {transformColor.colorSpeed}</p>
|
||||
<input type={'range'} min={0} max={1} step={.001} value={transformColor.colorSpeed}
|
||||
onInput={e => setTransformColor({...transformColor, colorSpeed: Number(e.currentTarget.value)})}/>
|
||||
</div>
|
||||
<div className={styles.inputElement} style={{
|
||||
width: '100%',
|
||||
height: '100%',
|
||||
backgroundColor: colorCss,
|
||||
filter: colorMode === 'dark' ? 'invert(1)' : ''
|
||||
}}/>
|
||||
</div>
|
||||
{children}
|
||||
</>
|
||||
)
|
||||
}
|
||||
return (
|
||||
<>
|
||||
<div className={styles.inputGroup} style={{ display: "grid", gridTemplateColumns: "2fr 2fr 1fr" }}>
|
||||
<p className={styles.inputTitle} style={{ gridColumn: "1/-1" }}>{title} {resetButton}</p>
|
||||
<div className={styles.inputElement}>
|
||||
<p>Color: {transformColor.color}</p>
|
||||
<input type={"range"} min={0} max={1} step={.001} value={transformColor.color}
|
||||
onInput={e => setTransformColor({ ...transformColor, color: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement}>
|
||||
<p>Speed: {transformColor.colorSpeed}</p>
|
||||
<input type={"range"} min={0} max={1} step={.001} value={transformColor.colorSpeed}
|
||||
onInput={e => setTransformColor({ ...transformColor, colorSpeed: Number(e.currentTarget.value) })} />
|
||||
</div>
|
||||
<div className={styles.inputElement} style={{
|
||||
width: "100%",
|
||||
height: "100%",
|
||||
backgroundColor: colorCss,
|
||||
filter: colorMode === "dark" ? "invert(1)" : ""
|
||||
}} />
|
||||
</div>
|
||||
{children}
|
||||
</>
|
||||
);
|
||||
};
|
||||
|
||||
type Props = {
|
||||
quality?: number;
|
||||
children?: React.ReactElement;
|
||||
children?: React.ReactElement;
|
||||
}
|
||||
export default function FlameColor({quality, children}: Props) {
|
||||
const {width, height, setPainter} = useContext(PainterContext);
|
||||
export default function FlameColor({ children }: Props) {
|
||||
const { width, height, setPainter } = useContext(PainterContext);
|
||||
|
||||
const xform1ColorDefault: TransformColor = {color: params.xform1Color, colorSpeed: 0.5};
|
||||
const [xform1Color, setXform1Color] = useState(xform1ColorDefault);
|
||||
const resetXform1Color = () => setXform1Color(xform1ColorDefault);
|
||||
const xform1ColorDefault: TransformColor = { color: params.xform1Color, colorSpeed: 0.5 };
|
||||
const [xform1Color, setXform1Color] = useState(xform1ColorDefault);
|
||||
const resetXform1Color = () => setXform1Color(xform1ColorDefault);
|
||||
|
||||
const xform2ColorDefault: TransformColor = {color: params.xform2Color, colorSpeed: 0.5};
|
||||
const [xform2Color, setXform2Color] = useState(xform2ColorDefault);
|
||||
const resetXform2Color = () => setXform2Color(xform2ColorDefault);
|
||||
const xform2ColorDefault: TransformColor = { color: params.xform2Color, colorSpeed: 0.5 };
|
||||
const [xform2Color, setXform2Color] = useState(xform2ColorDefault);
|
||||
const resetXform2Color = () => setXform2Color(xform2ColorDefault);
|
||||
|
||||
const xform3ColorDefault: TransformColor = {color: params.xform3Color, colorSpeed: 0.5};
|
||||
const [xform3Color, setXform3Color] = useState(xform3ColorDefault);
|
||||
const resetXform3Color = () => setXform3Color(xform3ColorDefault);
|
||||
const xform3ColorDefault: TransformColor = { color: params.xform3Color, colorSpeed: 0.5 };
|
||||
const [xform3Color, setXform3Color] = useState(xform3ColorDefault);
|
||||
const resetXform3Color = () => setXform3Color(xform3ColorDefault);
|
||||
|
||||
const xformFinalColorDefault: TransformColor = {color: params.xformFinalColor, colorSpeed: 0};
|
||||
const [xformFinalColor, setXformFinalColor] = useState(xformFinalColorDefault);
|
||||
const resetXformFinalColor = () => setXformFinalColor(xformFinalColorDefault);
|
||||
const xformFinalColorDefault: TransformColor = { color: params.xformFinalColor, colorSpeed: 0 };
|
||||
const [xformFinalColor, setXformFinalColor] = useState(xformFinalColorDefault);
|
||||
const resetXformFinalColor = () => setXformFinalColor(xformFinalColorDefault);
|
||||
|
||||
useEffect(() => {
|
||||
const gameParams: ChaosGameColorProps = {
|
||||
width,
|
||||
height,
|
||||
transforms: params.xforms,
|
||||
final: params.xformFinal,
|
||||
palette: params.palette,
|
||||
colors: [xform1Color, xform2Color, xform3Color],
|
||||
finalColor: xformFinalColor
|
||||
}
|
||||
setPainter(chaosGameColor(gameParams));
|
||||
}, [xform1Color, xform2Color, xform3Color, xformFinalColor]);
|
||||
useEffect(() => {
|
||||
const gameParams: ChaosGameColorProps = {
|
||||
width,
|
||||
height,
|
||||
transforms: params.xforms,
|
||||
final: params.xformFinal,
|
||||
palette: params.palette,
|
||||
colors: [xform1Color, xform2Color, xform3Color],
|
||||
finalColor: xformFinalColor
|
||||
};
|
||||
setPainter(chaosGameColor(gameParams));
|
||||
}, [xform1Color, xform2Color, xform3Color, xformFinalColor]);
|
||||
|
||||
return (
|
||||
<>
|
||||
<PaletteBar height={40} palette={params.palette}/>
|
||||
<ColorEditor
|
||||
title={"Transform 1"}
|
||||
palette={params.palette}
|
||||
transformColor={xform1Color}
|
||||
setTransformColor={setXform1Color}
|
||||
resetTransformColor={resetXform1Color}/>
|
||||
<ColorEditor
|
||||
title={"Transform 2"}
|
||||
palette={params.palette}
|
||||
transformColor={xform2Color}
|
||||
setTransformColor={setXform2Color}
|
||||
resetTransformColor={resetXform2Color}/>
|
||||
<ColorEditor
|
||||
title={"Transform 3"}
|
||||
palette={params.palette}
|
||||
transformColor={xform3Color}
|
||||
setTransformColor={setXform3Color}
|
||||
resetTransformColor={resetXform3Color}/>
|
||||
<ColorEditor
|
||||
title={"Transform Final"}
|
||||
palette={params.palette}
|
||||
transformColor={xformFinalColor}
|
||||
setTransformColor={setXformFinalColor}
|
||||
resetTransformColor={resetXformFinalColor}/>
|
||||
{children}
|
||||
</>
|
||||
);
|
||||
return (
|
||||
<>
|
||||
<PaletteBar height={40} palette={params.palette} />
|
||||
<ColorEditor
|
||||
title={"Transform 1"}
|
||||
palette={params.palette}
|
||||
transformColor={xform1Color}
|
||||
setTransformColor={setXform1Color}
|
||||
resetTransformColor={resetXform1Color} />
|
||||
<ColorEditor
|
||||
title={"Transform 2"}
|
||||
palette={params.palette}
|
||||
transformColor={xform2Color}
|
||||
setTransformColor={setXform2Color}
|
||||
resetTransformColor={resetXform2Color} />
|
||||
<ColorEditor
|
||||
title={"Transform 3"}
|
||||
palette={params.palette}
|
||||
transformColor={xform3Color}
|
||||
setTransformColor={setXform3Color}
|
||||
resetTransformColor={resetXform3Color} />
|
||||
<ColorEditor
|
||||
title={"Transform Final"}
|
||||
palette={params.palette}
|
||||
transformColor={xformFinalColor}
|
||||
setTransformColor={setXformFinalColor}
|
||||
resetTransformColor={resetXformFinalColor} />
|
||||
{children}
|
||||
</>
|
||||
);
|
||||
}
|
||||
@ -1,25 +1,25 @@
|
||||
import React, {useContext, useEffect} from "react";
|
||||
import {xforms as transforms, xformFinal as final} from "../src/params";
|
||||
import {PainterContext} from "../src/Canvas";
|
||||
import {chaosGameHistogram} from "./chaosGameHistogram";
|
||||
import React, { useContext, useEffect } from "react";
|
||||
import { xformFinal as final, xforms as transforms } from "../src/params";
|
||||
import { PainterContext } from "../src/Canvas";
|
||||
import { chaosGameHistogram } from "./chaosGameHistogram";
|
||||
|
||||
type Props = {
|
||||
paint: (width: number, height: number, histogram: number[]) => ImageData;
|
||||
children?: React.ReactElement;
|
||||
paint: (width: number, height: number, histogram: number[]) => ImageData;
|
||||
children?: React.ReactElement;
|
||||
}
|
||||
export default function FlameHistogram({paint, children}: Props) {
|
||||
const {width, height, setPainter} = useContext(PainterContext);
|
||||
export default function FlameHistogram({ paint, children }: Props) {
|
||||
const { width, height, setPainter } = useContext(PainterContext);
|
||||
|
||||
useEffect(() => {
|
||||
const gameParams = {
|
||||
width,
|
||||
height,
|
||||
transforms,
|
||||
final,
|
||||
paint
|
||||
}
|
||||
setPainter(chaosGameHistogram(gameParams));
|
||||
}, [width, height]);
|
||||
useEffect(() => {
|
||||
const gameParams = {
|
||||
width,
|
||||
height,
|
||||
transforms,
|
||||
final,
|
||||
paint
|
||||
};
|
||||
setPainter(chaosGameHistogram(gameParams));
|
||||
}, [width, height]);
|
||||
|
||||
return children;
|
||||
return children;
|
||||
}
|
||||
@ -1,64 +1,135 @@
|
||||
// hidden-start
|
||||
import {Props as ChaosGameFinalProps} from "../2-transforms/chaosGameFinal";
|
||||
import {randomBiUnit} from "../src/randomBiUnit";
|
||||
import {randomChoice} from "../src/randomChoice";
|
||||
import {camera, histIndex} from "../src/camera";
|
||||
import {colorFromPalette} from "./colorFromPalette";
|
||||
import {mixColor} from "./mixColor";
|
||||
import {paintColor} from "./paintColor";
|
||||
import { Props as ChaosGameFinalProps } from "../2-transforms/chaosGameFinal";
|
||||
import { randomBiUnit } from "../src/randomBiUnit";
|
||||
import { randomChoice } from "../src/randomChoice";
|
||||
import { camera, histIndex } from "../src/camera";
|
||||
import { colorFromPalette } from "./colorFromPalette";
|
||||
import { mixColor } from "./mixColor";
|
||||
import { paintColor } from "./paintColor";
|
||||
|
||||
const quality = 15;
|
||||
const step = 100_000;
|
||||
// hidden-end
|
||||
export type TransformColor = {
|
||||
color: number;
|
||||
colorSpeed: number;
|
||||
color: number;
|
||||
colorSpeed: number;
|
||||
}
|
||||
|
||||
export type Props = ChaosGameFinalProps & {
|
||||
palette: number[];
|
||||
colors: TransformColor[];
|
||||
finalColor: TransformColor;
|
||||
palette: number[];
|
||||
colors: TransformColor[];
|
||||
finalColor: TransformColor;
|
||||
}
|
||||
export function* chaosGameColor({width, height, transforms, final, palette, colors, finalColor}: Props) {
|
||||
const imgRed = Array<number>(width * height).fill(0);
|
||||
const imgGreen = Array<number>(width * height).fill(0);
|
||||
const imgBlue = Array<number>(width * height).fill(0);
|
||||
const imgAlpha = Array<number>(width * height).fill(0);
|
||||
|
||||
let [x, y] = [randomBiUnit(), randomBiUnit()];
|
||||
let c = Math.random();
|
||||
export function* chaosGameColor(
|
||||
{
|
||||
width,
|
||||
height,
|
||||
transforms,
|
||||
final,
|
||||
palette,
|
||||
colors,
|
||||
finalColor
|
||||
}: Props
|
||||
) {
|
||||
const pixels = width * height;
|
||||
|
||||
const iterations = width * height * quality;
|
||||
for (let i = 0; i < iterations; i++) {
|
||||
const [transformIndex, transform] = randomChoice(transforms);
|
||||
[x, y] = transform(x, y);
|
||||
// highlight-start
|
||||
const imgRed = Array<number>(pixels)
|
||||
.fill(0);
|
||||
const imgGreen = Array<number>(pixels)
|
||||
.fill(0);
|
||||
const imgBlue = Array<number>(pixels)
|
||||
.fill(0);
|
||||
const imgAlpha = Array<number>(pixels)
|
||||
.fill(0);
|
||||
|
||||
// highlight-start
|
||||
const transformColor = colors[transformIndex];
|
||||
c = mixColor(c, transformColor.color, transformColor.colorSpeed);
|
||||
// highlight-end
|
||||
const plotColor = (
|
||||
x: number,
|
||||
y: number,
|
||||
c: number
|
||||
) => {
|
||||
const [pixelX, pixelY] =
|
||||
camera(x, y, width);
|
||||
|
||||
const [finalX, finalY] = final(x, y);
|
||||
if (
|
||||
pixelX < 0 ||
|
||||
pixelX >= width ||
|
||||
pixelY < 0 ||
|
||||
pixelY >= width
|
||||
)
|
||||
return;
|
||||
|
||||
if (i > 20) {
|
||||
const [pixelX, pixelY] = camera(finalX, finalY, width);
|
||||
const pixelIndex = histIndex(pixelX, pixelY, width, 1);
|
||||
const hIndex =
|
||||
histIndex(pixelX, pixelY, width, 1);
|
||||
|
||||
if (pixelIndex < 0 || pixelIndex >= imgAlpha.length)
|
||||
continue;
|
||||
const [r, g, b] =
|
||||
colorFromPalette(palette, c);
|
||||
|
||||
const colorFinal = mixColor(c, finalColor.color, finalColor.colorSpeed);
|
||||
const [r, g, b] = colorFromPalette(palette, colorFinal);
|
||||
imgRed[pixelIndex] += r;
|
||||
imgGreen[pixelIndex] += g;
|
||||
imgBlue[pixelIndex] += b;
|
||||
imgAlpha[pixelIndex] += 1;
|
||||
}
|
||||
imgRed[hIndex] += r;
|
||||
imgGreen[hIndex] += g;
|
||||
imgBlue[hIndex] += b;
|
||||
imgAlpha[hIndex] += 1;
|
||||
}
|
||||
// highlight-end
|
||||
|
||||
if (i % step === 0)
|
||||
yield paintColor(width, height, imgRed, imgGreen, imgBlue, imgAlpha);
|
||||
}
|
||||
let [x, y] = [
|
||||
randomBiUnit(),
|
||||
randomBiUnit()
|
||||
];
|
||||
let c = Math.random();
|
||||
|
||||
yield paintColor(width, height, imgRed, imgGreen, imgBlue, imgAlpha);
|
||||
const iterations = quality * pixels;
|
||||
for (let i = 0; i < iterations; i++) {
|
||||
const [transformIndex, transform] =
|
||||
randomChoice(transforms);
|
||||
[x, y] = transform(x, y);
|
||||
|
||||
// highlight-start
|
||||
const transformColor =
|
||||
colors[transformIndex];
|
||||
|
||||
c = mixColor(
|
||||
c,
|
||||
transformColor.color,
|
||||
transformColor.colorSpeed
|
||||
);
|
||||
// highlight-end
|
||||
|
||||
const [finalX, finalY] = final(x, y);
|
||||
|
||||
// highlight-start
|
||||
const finalC = mixColor(
|
||||
c,
|
||||
finalColor.color,
|
||||
finalColor.colorSpeed
|
||||
);
|
||||
// highlight-end
|
||||
|
||||
if (i > 20)
|
||||
plotColor(
|
||||
finalX,
|
||||
finalY,
|
||||
finalC
|
||||
)
|
||||
|
||||
if (i % step === 0)
|
||||
yield paintColor(
|
||||
width,
|
||||
height,
|
||||
imgRed,
|
||||
imgGreen,
|
||||
imgBlue,
|
||||
imgAlpha
|
||||
);
|
||||
}
|
||||
|
||||
yield paintColor(
|
||||
width,
|
||||
height,
|
||||
imgRed,
|
||||
imgGreen,
|
||||
imgBlue,
|
||||
imgAlpha
|
||||
);
|
||||
}
|
||||
@ -1,45 +1,78 @@
|
||||
// hidden-start
|
||||
import {randomBiUnit} from "../src/randomBiUnit";
|
||||
import {randomChoice} from "../src/randomChoice";
|
||||
import {Props as ChaosGameFinalProps} from "../2-transforms/chaosGameFinal";
|
||||
import {camera, histIndex} from "../src/camera";
|
||||
import { randomBiUnit } from "../src/randomBiUnit";
|
||||
import { randomChoice } from "../src/randomChoice";
|
||||
import { Props as ChaosGameFinalProps } from "../2-transforms/chaosGameFinal";
|
||||
import { camera, histIndex } from "../src/camera";
|
||||
|
||||
const quality = 10;
|
||||
const step = 100_000;
|
||||
// hidden-end
|
||||
export type Props = ChaosGameFinalProps & {
|
||||
paint: (width: number, height: number, histogram: number[]) => ImageData;
|
||||
type Props = ChaosGameFinalProps & {
|
||||
paint: (
|
||||
width: number,
|
||||
height: number,
|
||||
histogram: number[]
|
||||
) => ImageData;
|
||||
}
|
||||
export function* chaosGameHistogram({width, height, transforms, final, paint}: Props) {
|
||||
let iterations = quality * width * height;
|
||||
|
||||
// highlight-start
|
||||
const histogram = Array<number>(width * height).fill(0);
|
||||
// highlight-end
|
||||
export function* chaosGameHistogram(
|
||||
{
|
||||
width,
|
||||
height,
|
||||
transforms,
|
||||
final,
|
||||
paint
|
||||
}: Props
|
||||
) {
|
||||
const pixels = width * height;
|
||||
const iterations = quality * pixels;
|
||||
|
||||
let [x, y] = [randomBiUnit(), randomBiUnit()];
|
||||
// highlight-start
|
||||
const hist = Array<number>(pixels)
|
||||
.fill(0);
|
||||
|
||||
for (let i = 0; i < iterations; i++) {
|
||||
const [_, transform] = randomChoice(transforms);
|
||||
[x, y] = transform(x, y);
|
||||
const [finalX, finalY] = final(x, y);
|
||||
const plotHist = (
|
||||
x: number,
|
||||
y: number
|
||||
) => {
|
||||
const [pixelX, pixelY] =
|
||||
camera(x, y, width);
|
||||
|
||||
if (i > 20) {
|
||||
// highlight-start
|
||||
const [pixelX, pixelY] = camera(finalX, finalY, width);
|
||||
const hIndex = histIndex(pixelX, pixelY, width, 1);
|
||||
if (
|
||||
pixelX < 0 ||
|
||||
pixelX >= width ||
|
||||
pixelY < 0 ||
|
||||
pixelY >= height
|
||||
)
|
||||
return;
|
||||
|
||||
if (hIndex < 0 || hIndex >= histogram.length) {
|
||||
continue;
|
||||
}
|
||||
const hIndex =
|
||||
histIndex(pixelX, pixelY, width, 1);
|
||||
|
||||
histogram[hIndex] += 1;
|
||||
// highlight-end
|
||||
}
|
||||
hist[hIndex] += 1;
|
||||
};
|
||||
// highlight-end
|
||||
|
||||
if (i % step === 0)
|
||||
yield paint(width, height, histogram);
|
||||
let [x, y] = [
|
||||
randomBiUnit(),
|
||||
randomBiUnit()
|
||||
];
|
||||
|
||||
for (let i = 0; i < iterations; i++) {
|
||||
const [_, transform] =
|
||||
randomChoice(transforms);
|
||||
[x, y] = transform(x, y);
|
||||
const [finalX, finalY] = final(x, y);
|
||||
|
||||
if (i > 20) {
|
||||
// highlight-start
|
||||
plotHist(finalX, finalY);
|
||||
// highlight-end
|
||||
}
|
||||
|
||||
yield paint(width, height, histogram);
|
||||
if (i % step === 0)
|
||||
yield paint(width, height, hist);
|
||||
}
|
||||
|
||||
yield paint(width, height, hist);
|
||||
}
|
||||
@ -1,4 +1,14 @@
|
||||
export function colorFromPalette(palette: number[], colorIndex: number): [number, number, number] {
|
||||
const paletteIndex = Math.floor(colorIndex * (palette.length / 3)) * 3;
|
||||
return [palette[paletteIndex], palette[paletteIndex + 1], palette[paletteIndex + 2]];
|
||||
export function colorFromPalette(
|
||||
palette: number[],
|
||||
colorIndex: number
|
||||
): [number, number, number] {
|
||||
const numColors = palette.length / 3;
|
||||
const paletteIndex = Math.floor(
|
||||
colorIndex * (numColors)
|
||||
) * 3;
|
||||
return [
|
||||
palette[paletteIndex], // red
|
||||
palette[paletteIndex + 1], // green
|
||||
palette[paletteIndex + 2] // blue
|
||||
];
|
||||
}
|
||||
@ -165,7 +165,7 @@ import colorFromPaletteSource from "!!raw-loader!./colorFromPalette";
|
||||
<details>
|
||||
<summary>As an alternative...</summary>
|
||||
|
||||
...you could also interpolate between colors in the palette.
|
||||
...you could interpolate between colors in the palette.
|
||||
For example, `flam3` uses [linear interpolation](https://github.com/scottdraves/flam3/blob/7fb50c82e90e051f00efcc3123d0e06de26594b2/rect.c#L483-L486)
|
||||
</details>
|
||||
|
||||
|
||||
@ -1,3 +1,8 @@
|
||||
export function mixColor(color1: number, color2: number, colorSpeed: number) {
|
||||
return color1 * (1 - colorSpeed) + color2 * colorSpeed;
|
||||
export function mixColor(
|
||||
color1: number,
|
||||
color2: number,
|
||||
colorSpeed: number
|
||||
) {
|
||||
return color1 * (1 - colorSpeed) +
|
||||
color2 * colorSpeed;
|
||||
}
|
||||
@ -1,25 +1,34 @@
|
||||
// hidden-start
|
||||
import {colorFromPalette} from "./colorFromPalette";
|
||||
// hidden-end
|
||||
export function paintColor(
|
||||
width: number,
|
||||
height: number,
|
||||
red: number[],
|
||||
green: number[],
|
||||
blue: number[],
|
||||
alpha: number[]
|
||||
width: number,
|
||||
height: number,
|
||||
red: number[],
|
||||
green: number[],
|
||||
blue: number[],
|
||||
alpha: number[]
|
||||
): ImageData {
|
||||
const image = new ImageData(width, height);
|
||||
const pixels = width * height;
|
||||
const img =
|
||||
new ImageData(width, height);
|
||||
|
||||
for (let i = 0; i < width * height; i++) {
|
||||
const alphaScale = Math.log10(alpha[i]) / (alpha[i] * 1.5);
|
||||
for (let i = 0; i < pixels; i++) {
|
||||
const scale =
|
||||
Math.log10(alpha[i]) /
|
||||
(alpha[i] * 1.5);
|
||||
|
||||
const pixelIndex = i * 4;
|
||||
image.data[pixelIndex] = red[i] * alphaScale * 0xff;
|
||||
image.data[pixelIndex + 1] = green[i] * alphaScale * 0xff;
|
||||
image.data[pixelIndex + 2] = blue[i] * alphaScale * 0xff;
|
||||
image.data[pixelIndex + 3] = alpha[i] * alphaScale * 0xff;
|
||||
}
|
||||
const pixelIndex = i * 4;
|
||||
|
||||
return image;
|
||||
const rVal = red[i] * scale * 0xff;
|
||||
img.data[pixelIndex] = rVal;
|
||||
|
||||
const gVal = green[i] * scale * 0xff;
|
||||
img.data[pixelIndex + 1] = gVal;
|
||||
|
||||
const bVal = blue[i] * scale * 0xff;
|
||||
img.data[pixelIndex + 2] = bVal;
|
||||
|
||||
const aVal = alpha[i] * scale * 0xff;
|
||||
img.data[pixelIndex + 3] = aVal;
|
||||
}
|
||||
|
||||
return img;
|
||||
}
|
||||
@ -1,18 +1,26 @@
|
||||
export function paintLinear(width: number, height: number, histogram: number[]): ImageData {
|
||||
const image = new ImageData(width, height);
|
||||
export function paintLinear(
|
||||
width: number,
|
||||
height: number,
|
||||
hist: number[]
|
||||
) {
|
||||
const img =
|
||||
new ImageData(width, height);
|
||||
|
||||
let valueMax = 0;
|
||||
for (let value of histogram) {
|
||||
valueMax = Math.max(valueMax, value);
|
||||
}
|
||||
let hMax = 0;
|
||||
for (let value of hist) {
|
||||
hMax = Math.max(hMax, value);
|
||||
}
|
||||
|
||||
for (let i = 0; i < histogram.length; i++) {
|
||||
const pixelIndex = i * 4;
|
||||
image.data[pixelIndex] = 0;
|
||||
image.data[pixelIndex + 1] = 0;
|
||||
image.data[pixelIndex + 2] = 0;
|
||||
image.data[pixelIndex + 3] = histogram[i] / valueMax * 0xff;
|
||||
}
|
||||
for (let i = 0; i < hist.length; i++) {
|
||||
const pixelIndex = i * 4;
|
||||
|
||||
return image;
|
||||
img.data[pixelIndex] = 0;
|
||||
img.data[pixelIndex + 1] = 0;
|
||||
img.data[pixelIndex + 2] = 0;
|
||||
|
||||
const alpha = hist[i] / hMax * 0xff;
|
||||
img.data[pixelIndex + 3] = alpha;
|
||||
}
|
||||
|
||||
return img;
|
||||
}
|
||||
@ -1,21 +1,29 @@
|
||||
export function paintLogarithmic(width: number, height: number, histogram: number[]): ImageData {
|
||||
const image = new ImageData(width, height);
|
||||
export function paintLogarithmic(
|
||||
width: number,
|
||||
height: number,
|
||||
hist: number[]
|
||||
) {
|
||||
const img =
|
||||
new ImageData(width, height);
|
||||
|
||||
const histogramLog: number[] = [];
|
||||
histogram.forEach(value => histogramLog.push(Math.log(value)));
|
||||
const histLog = hist.map(Math.log);
|
||||
|
||||
let histogramLogMax = -Infinity;
|
||||
for (let value of histogramLog) {
|
||||
histogramLogMax = Math.max(histogramLogMax, value);
|
||||
}
|
||||
let hLogMax = -Infinity;
|
||||
for (let value of histLog) {
|
||||
hLogMax = Math.max(hLogMax, value);
|
||||
}
|
||||
|
||||
for (let i = 0; i < histogram.length; i++) {
|
||||
const pixelIndex = i * 4;
|
||||
image.data[pixelIndex] = 0; // red
|
||||
image.data[pixelIndex + 1] = 0; // green
|
||||
image.data[pixelIndex + 2] = 0; // blue
|
||||
image.data[pixelIndex + 3] = histogramLog[i] / histogramLogMax * 0xff;
|
||||
}
|
||||
for (let i = 0; i < hist.length; i++) {
|
||||
const pixelIndex = i * 4;
|
||||
|
||||
return image;
|
||||
img.data[pixelIndex] = 0; // red
|
||||
img.data[pixelIndex + 1] = 0; // green
|
||||
img.data[pixelIndex + 2] = 0; // blue
|
||||
|
||||
const alpha =
|
||||
histLog[i] / hLogMax * 0xff;
|
||||
img.data[pixelIndex + 3] = alpha;
|
||||
}
|
||||
|
||||
return img;
|
||||
}
|
||||
@ -1,8 +1,8 @@
|
||||
<Flames name="params">
|
||||
<flame name="post xform" version="Apophysis 2.08 beta" size="600 600" center="0 0" scale="150" oversample="1" filter="0.2" quality="1" background="0 0 0" brightness="4" gamma="4" >
|
||||
<xform weight="0.422330042096567" color="0" pdj="1" coefs="1.51523 0.740356 -3.048677 -1.455964 0.724135 -0.362059" pdj_a="1.09358" pdj_b="2.13048" pdj_c="2.54127" pdj_d="2.37267" />
|
||||
<xform weight="0.564534951145298" color="0" julia="1" coefs="-1.381068 1.381068 -1.381068 -1.381068 0 0" />
|
||||
<xform weight="0.564534951145298" color="0" julia="1" coefs="-1.381068 1.381068 -1.381068 -1.381068 0 0" post="1 0 0 1 2 0"/>
|
||||
<xform weight="0.0131350067581356" color="0" linear="1" popcorn="1" coefs="0.031393 -0.031367 0.031367 0.031393 0 0" post="1 0 0 1 0.24 0.27" />
|
||||
<xform weight="0.422330042096567" color="0" pdj="1" coefs="1.51523 0.740356 -3.048677 -1.455964 0.724135 -0.362059" pdj_a="1.09358" pdj_b="2.13048" pdj_c="2.54127" pdj_d="2.37267" />
|
||||
<palette count="256" format="RGB">
|
||||
3130323635383B3A3D403F424644484B494D504E52565358
|
||||
5B585D605D626562686B676D706C737571787B767D807B83
|
||||
@ -39,9 +39,9 @@
|
||||
</palette>
|
||||
</flame>
|
||||
<flame name="baseline" version="Apophysis 2.08 beta" size="600 600" center="0 0" scale="150" oversample="1" filter="0.2" quality="1" background="0 0 0" brightness="4" gamma="4" >
|
||||
<xform weight="0.422330042096567" color="0" pdj="1" coefs="1.51523 0.740356 -3.048677 -1.455964 0.724135 -0.362059" pdj_a="1.09358" pdj_b="2.13048" pdj_c="2.54127" pdj_d="2.37267" />
|
||||
<xform weight="0.564534951145298" color="0.13" julia="1" coefs="-1.381068 1.381068 -1.381068 -1.381068 0 0" />
|
||||
<xform weight="0.0131350067581356" color="0.844" linear="1" popcorn="1" coefs="0.031393 -0.031367 0.031367 0.031393 0 0" />
|
||||
<xform weight="0.422330042096567" color="0" pdj="1" coefs="1.51523 0.740356 -3.048677 -1.455964 0.724135 -0.362059" pdj_a="1.09358" pdj_b="2.13048" pdj_c="2.54127" pdj_d="2.37267" />
|
||||
<palette count="256" format="RGB">
|
||||
3130323635383B3A3D403F424644484B494D504E52565358
|
||||
5B585D605D626562686B676D706C737571787B767D807B83
|
||||
@ -78,9 +78,9 @@
|
||||
</palette>
|
||||
</flame>
|
||||
<flame name="final xform" version="Apophysis 2.08 beta" size="600 600" center="0 0" scale="150" oversample="1" filter="0.2" quality="1" background="1 1 1" brightness="4" gamma="4" >
|
||||
<xform weight="0.422330042096567" color="0.349" pdj="1" coefs="1.51523 0.740356 -3.048677 -1.455964 0.724135 -0.362059" pdj_a="1.09358" pdj_b="2.13048" pdj_c="2.54127" pdj_d="2.37267" />
|
||||
<xform weight="0.564534951145298" color="0" julia="1" coefs="-1.381068 1.381068 -1.381068 -1.381068 0 0" />
|
||||
<xform weight="0.0131350067581356" color="0.766" linear="1" popcorn="1" coefs="0.031393 -0.031367 0.031367 0.031393 0 0" post="1 0 0 1 0.24 0.27" />
|
||||
<xform weight="0.422330042096567" color="0.349" pdj="1" coefs="1.51523 0.740356 -3.048677 -1.455964 0.724135 -0.362059" pdj_a="1.09358" pdj_b="2.13048" pdj_c="2.54127" pdj_d="2.37267" />
|
||||
<finalxform color="0" symmetry="1" julia="1" coefs="2 0 0 2 0 0" />
|
||||
<palette count="256" format="RGB">
|
||||
3130323635383B3A3D403F424644484B494D504E52565358
|
||||
|
||||
@ -11,7 +11,7 @@ export const PainterContext = createContext<PainterProps>(null)
|
||||
const downloadImage = (name: string) =>
|
||||
(e: MouseEvent) => {
|
||||
const link = document.createElement("a");
|
||||
link.download = "flame.png";
|
||||
link.download = `${name}.png`;
|
||||
link.href = (e.target as HTMLCanvasElement).toDataURL("image/png");
|
||||
link.click();
|
||||
}
|
||||
|
||||
@ -1,8 +1,8 @@
|
||||
import {Transform, Coefs, applyCoefs} from "./transform";
|
||||
import {blend, VariationBlend} from "./blend";
|
||||
import { applyCoefs, Coefs, Transform } from "./transform";
|
||||
import { blend, Blend } from "./blend";
|
||||
|
||||
export const applyTransform = (coefs: Coefs, variations: VariationBlend): Transform =>
|
||||
(x, y) => blend(...applyCoefs(x, y, coefs), variations);
|
||||
export const applyTransform = (coefs: Coefs, variations: Blend): Transform =>
|
||||
(x, y) => blend(...applyCoefs(x, y, coefs), variations)
|
||||
|
||||
export const applyPost = (coefsPost: Coefs, transform: Transform): Transform =>
|
||||
(x, y) => applyCoefs(...transform(x, y), coefsPost);
|
||||
(x, y) => applyCoefs(...transform(x, y), coefsPost);
|
||||
@ -1,19 +1,20 @@
|
||||
// hidden-start
|
||||
import {Variation} from "./variation";
|
||||
import { Variation } from "./variation";
|
||||
// hidden-end
|
||||
export type VariationBlend = [number, Variation][];
|
||||
export type Blend = [number, Variation][];
|
||||
|
||||
export function blend(
|
||||
x: number,
|
||||
y: number,
|
||||
variations: VariationBlend
|
||||
x: number,
|
||||
y: number,
|
||||
varFns: Blend
|
||||
): [number, number] {
|
||||
let [outX, outY] = [0, 0];
|
||||
let [outX, outY] = [0, 0];
|
||||
|
||||
for (const [weight, variation] of variations) {
|
||||
const [varX, varY] = variation(x, y);
|
||||
outX += weight * varX;
|
||||
outY += weight * varY;
|
||||
}
|
||||
for (const [weight, varFn] of varFns) {
|
||||
const [varX, varY] = varFn(x, y);
|
||||
outX += weight * varX;
|
||||
outY += weight * varY;
|
||||
}
|
||||
|
||||
return [outX, outY];
|
||||
return [outX, outY];
|
||||
}
|
||||
@ -1,16 +1,21 @@
|
||||
// hidden-start
|
||||
import { Variation } from './variation'
|
||||
import { Variation } from "./variation";
|
||||
// hidden-end
|
||||
export const julia: Variation = (x, y) => {
|
||||
const r = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
|
||||
const omega =
|
||||
() => Math.random() > 0.5 ? 0 : Math.PI;
|
||||
|
||||
export const julia: Variation =
|
||||
(x, y) => {
|
||||
const x2 = Math.pow(x, 2);
|
||||
const y2 = Math.pow(y, 2);
|
||||
const r = Math.sqrt(x2 + y2);
|
||||
|
||||
const theta = Math.atan2(x, y);
|
||||
const omega = Math.random() > 0.5 ? 0 : Math.PI;
|
||||
|
||||
const sqrtR = Math.sqrt(r);
|
||||
const thetaVal = theta / 2 + omega;
|
||||
const thetaVal = theta / 2 + omega();
|
||||
return [
|
||||
sqrtR * Math.cos(thetaVal),
|
||||
sqrtR * Math.sin(thetaVal)
|
||||
]
|
||||
}
|
||||
sqrtR * Math.cos(thetaVal),
|
||||
sqrtR * Math.sin(thetaVal)
|
||||
];
|
||||
};
|
||||
@ -1,4 +1,5 @@
|
||||
// hidden-start
|
||||
import {Variation} from "./variation"
|
||||
//hidden-end
|
||||
export const linear: Variation = (x, y) => [x, y];
|
||||
export const linear: Variation =
|
||||
(x, y) => [x, y];
|
||||
@ -3,119 +3,118 @@
|
||||
* translated into something that's easier to work with.
|
||||
*/
|
||||
|
||||
import { Coefs } from './coefs';
|
||||
import {VariationBlend} from "./blend";
|
||||
import { linear } from './linear'
|
||||
import { julia } from './julia'
|
||||
import { popcorn } from './popcorn'
|
||||
import {pdj, PdjParams} from './pdj'
|
||||
import {Transform} from "./transform";
|
||||
import {applyPost, applyTransform} from "./applyTransform";
|
||||
import { Blend } from "./blend";
|
||||
import { linear } from "./linear";
|
||||
import { julia } from "./julia";
|
||||
import { popcorn } from "./popcorn";
|
||||
import { pdj, PdjParams } from "./pdj";
|
||||
import { Coefs, Transform } from "./transform";
|
||||
import { applyPost, applyTransform } from "./applyTransform";
|
||||
|
||||
export const identityCoefs: Coefs = {
|
||||
a: 1, b: 0, c: 0,
|
||||
d: 0, e: 1, f: 0,
|
||||
}
|
||||
a: 1, b: 0, c: 0,
|
||||
d: 0, e: 1, f: 0
|
||||
};
|
||||
|
||||
export const pdjParams: PdjParams = {
|
||||
a: 1.09358, b: 2.13048, c: 2.54127, d: 2.37267
|
||||
}
|
||||
a: 1.09358, b: 2.13048, c: 2.54127, d: 2.37267
|
||||
};
|
||||
|
||||
export const xform1Weight = 0.56453495;
|
||||
export const xform1Coefs = {
|
||||
a: -1.381068, b: -1.381068, c: 0,
|
||||
d: 1.381068, e: -1.381068, f: 0,
|
||||
}
|
||||
a: -1.381068, b: -1.381068, c: 0,
|
||||
d: 1.381068, e: -1.381068, f: 0
|
||||
};
|
||||
export const xform1CoefsPost = identityCoefs;
|
||||
export const xform1Variations: VariationBlend = [
|
||||
[1, julia]
|
||||
]
|
||||
export const xform1Variations: Blend = [
|
||||
[1, julia]
|
||||
];
|
||||
export const xform1Color = 0;
|
||||
|
||||
export const xform2Weight = 0.013135;
|
||||
export const xform2Coefs = {
|
||||
a: 0.031393, b: 0.031367, c: 0,
|
||||
d: -0.031367, e: 0.031393, f: 0,
|
||||
}
|
||||
a: 0.031393, b: 0.031367, c: 0,
|
||||
d: -0.031367, e: 0.031393, f: 0
|
||||
};
|
||||
export const xform2CoefsPost = {
|
||||
a: 1, b: 0, c: 0.24,
|
||||
d: 0, e: 1, f: 0.27,
|
||||
}
|
||||
export const xform2Variations: VariationBlend = [
|
||||
[1, linear],
|
||||
[1, popcorn(xform2Coefs)]
|
||||
]
|
||||
a: 1, b: 0, c: 0.24,
|
||||
d: 0, e: 1, f: 0.27
|
||||
};
|
||||
export const xform2Variations: Blend = [
|
||||
[1, linear],
|
||||
[1, popcorn(xform2Coefs)]
|
||||
];
|
||||
export const xform2Color = 0.844;
|
||||
|
||||
export const xform3Weight = 0.42233;
|
||||
export const xform3Coefs = {
|
||||
a: 1.51523, b: -3.048677, c: 0.724135,
|
||||
d: 0.740356, e: -1.455964, f: -0.362059,
|
||||
}
|
||||
a: 1.51523, b: -3.048677, c: 0.724135,
|
||||
d: 0.740356, e: -1.455964, f: -0.362059
|
||||
};
|
||||
export const xform3CoefsPost = identityCoefs;
|
||||
export const xform3Variations: VariationBlend = [
|
||||
[1, pdj(pdjParams)]
|
||||
export const xform3Variations: Blend = [
|
||||
[1, pdj(pdjParams)]
|
||||
];
|
||||
export const xform3Color = 0.349;
|
||||
|
||||
export const xformFinalCoefs = {
|
||||
a: 2, b: 0, c: 0,
|
||||
d: 0, e: 2, f: 0
|
||||
}
|
||||
a: 2, b: 0, c: 0,
|
||||
d: 0, e: 2, f: 0
|
||||
};
|
||||
export const xformFinalCoefsPost = identityCoefs;
|
||||
export const xformFinalVariations: VariationBlend = [
|
||||
[1, julia]
|
||||
]
|
||||
export const xformFinalVariations: Blend = [
|
||||
[1, julia]
|
||||
];
|
||||
export const xformFinalColor = 0;
|
||||
|
||||
export const xforms: [number, Transform][] = [
|
||||
[xform1Weight, applyPost(xform1CoefsPost, applyTransform(xform1Coefs, xform1Variations))],
|
||||
[xform2Weight, applyPost(xform2CoefsPost, applyTransform(xform2Coefs, xform2Variations))],
|
||||
[xform3Weight, applyPost(xform3CoefsPost, applyTransform(xform3Coefs, xform3Variations))],
|
||||
]
|
||||
[xform1Weight, applyPost(xform1CoefsPost, applyTransform(xform1Coefs, xform1Variations))],
|
||||
[xform2Weight, applyPost(xform2CoefsPost, applyTransform(xform2Coefs, xform2Variations))],
|
||||
[xform3Weight, applyPost(xform3CoefsPost, applyTransform(xform3Coefs, xform3Variations))]
|
||||
];
|
||||
|
||||
export const xformFinal: Transform = applyPost(xformFinalCoefsPost, applyTransform(xformFinalCoefs, xformFinalVariations));
|
||||
|
||||
export const paletteString =
|
||||
"3130323635383B3A3D403F424644484B494D504E52565358" +
|
||||
"5B585D605D626562686B676D706C737571787B767D807B83" +
|
||||
"8580888A858D908A93958F989A949DA099A3A59EA8AAA3AD" +
|
||||
"AFA8B3B5ADB8BAB2BEBFB7C3C5BCC8CAC1CECFC6D3D4CBD8" +
|
||||
"DAD0DEDFD5E3DFD2E0DFCEDDE0CBDAE0C8D7E0C4D3E0C1D0" +
|
||||
"E1BECDE1BBCAE1B7C7E1B4C4E1B1C1E2ADBEE2AABAE2A7B7" +
|
||||
"E2A3B4E2A0B1E39DAEE399ABE396A8E393A5E490A1E48C9E" +
|
||||
"E4899BE48698E48295E57F92E57C8FE5788CE57589E57285" +
|
||||
"E66E82E66B7FE6687CE66479E76176E75E73E75B70E7576C" +
|
||||
"E75469E85166E84D63E84A60E4495EE0485CDC475BD84659" +
|
||||
"D44557D04455CB4353C74252C34150BF404EBB3F4CB73E4B" +
|
||||
"B33D49AF3C47AB3B45A73A43A339429F38409B373E97363C" +
|
||||
"92353A8E34398A33378632358231337E30327A2F30762E2E" +
|
||||
"722D2C6E2C2A6A2B29662A276229255E2823592721552620" +
|
||||
"51251E4D241C49231A4522194121173D20153C1F153A1F14" +
|
||||
"391E14381E14361D14351C13341C13321B13311B132F1A12" +
|
||||
"2E19122D19122B18122A1811291711271611261611251510" +
|
||||
"23151022141021140F1F130F1E120F1C120F1B110E1A110E" +
|
||||
"18100E170F0E160F0D140E0D130E0D120D0D100C0C0F0C0C" +
|
||||
"0E0B0C0C0B0C0B0A0B09090B08090B07080B05080A04070A" +
|
||||
"0606090804090A03088C46728A457087446D85436B824369" +
|
||||
"8042667D41647B4061793F5F763E5D743D5A713D586F3C56" +
|
||||
"6C3B536A3A5168394F65384C63374A6037485E36455B3543" +
|
||||
"59344057333E54323C5231394F31374D30354A2F32482E30" +
|
||||
"462D2E432C2B412B293E2B273C2A2439292237281F35271D" +
|
||||
"32261B3025182D25162B241428231126220F25210F24210E" +
|
||||
"23200E221F0E221E0D211E0D201D0D1F1C0D1E1B0C1D1B0C" +
|
||||
"1C1A0C1B190B1B180B1A180B19170A18160A17150A161509" +
|
||||
"1514091413091413081312081211081110081010070F0F07" +
|
||||
"0E0E070D0D060C0D060C0C060B0B050A0A05090A05080904" +
|
||||
"070804060704050704050603040503030403020402010302" +
|
||||
"0608070C0D0D1112121617171B1C1D2121222626272B2B2D"
|
||||
"3130323635383B3A3D403F424644484B494D504E52565358" +
|
||||
"5B585D605D626562686B676D706C737571787B767D807B83" +
|
||||
"8580888A858D908A93958F989A949DA099A3A59EA8AAA3AD" +
|
||||
"AFA8B3B5ADB8BAB2BEBFB7C3C5BCC8CAC1CECFC6D3D4CBD8" +
|
||||
"DAD0DEDFD5E3DFD2E0DFCEDDE0CBDAE0C8D7E0C4D3E0C1D0" +
|
||||
"E1BECDE1BBCAE1B7C7E1B4C4E1B1C1E2ADBEE2AABAE2A7B7" +
|
||||
"E2A3B4E2A0B1E39DAEE399ABE396A8E393A5E490A1E48C9E" +
|
||||
"E4899BE48698E48295E57F92E57C8FE5788CE57589E57285" +
|
||||
"E66E82E66B7FE6687CE66479E76176E75E73E75B70E7576C" +
|
||||
"E75469E85166E84D63E84A60E4495EE0485CDC475BD84659" +
|
||||
"D44557D04455CB4353C74252C34150BF404EBB3F4CB73E4B" +
|
||||
"B33D49AF3C47AB3B45A73A43A339429F38409B373E97363C" +
|
||||
"92353A8E34398A33378632358231337E30327A2F30762E2E" +
|
||||
"722D2C6E2C2A6A2B29662A276229255E2823592721552620" +
|
||||
"51251E4D241C49231A4522194121173D20153C1F153A1F14" +
|
||||
"391E14381E14361D14351C13341C13321B13311B132F1A12" +
|
||||
"2E19122D19122B18122A1811291711271611261611251510" +
|
||||
"23151022141021140F1F130F1E120F1C120F1B110E1A110E" +
|
||||
"18100E170F0E160F0D140E0D130E0D120D0D100C0C0F0C0C" +
|
||||
"0E0B0C0C0B0C0B0A0B09090B08090B07080B05080A04070A" +
|
||||
"0606090804090A03088C46728A457087446D85436B824369" +
|
||||
"8042667D41647B4061793F5F763E5D743D5A713D586F3C56" +
|
||||
"6C3B536A3A5168394F65384C63374A6037485E36455B3543" +
|
||||
"59344057333E54323C5231394F31374D30354A2F32482E30" +
|
||||
"462D2E432C2B412B293E2B273C2A2439292237281F35271D" +
|
||||
"32261B3025182D25162B241428231126220F25210F24210E" +
|
||||
"23200E221F0E221E0D211E0D201D0D1F1C0D1E1B0C1D1B0C" +
|
||||
"1C1A0C1B190B1B180B1A180B19170A18160A17150A161509" +
|
||||
"1514091413091413081312081211081110081010070F0F07" +
|
||||
"0E0E070D0D060C0D060C0C060B0B050A0A05090A05080904" +
|
||||
"070804060704050704050603040503030403020402010302" +
|
||||
"0608070C0D0D1112121617171B1C1D2121222626272B2B2D";
|
||||
|
||||
function hexToBytes(hex: string) {
|
||||
let bytes: number[] = [];
|
||||
for (let i = 0; i < hex.length; i += 2) {
|
||||
bytes.push(parseInt(hex.substring(i, i + 2), 16));
|
||||
}
|
||||
return bytes;
|
||||
let bytes: number[] = [];
|
||||
for (let i = 0; i < hex.length; i += 2) {
|
||||
bytes.push(parseInt(hex.substring(i, i + 2), 16));
|
||||
}
|
||||
return bytes;
|
||||
}
|
||||
|
||||
export const palette = hexToBytes(paletteString).map(value => value / 0xff);
|
||||
@ -1,10 +1,15 @@
|
||||
// hidden-start
|
||||
import { Variation } from './variation'
|
||||
//hidden-end
|
||||
export type PdjParams = {a: number, b: number, c: number, d: number};
|
||||
export function pdj({a, b, c, d}: PdjParams): Variation {
|
||||
return (x, y) => [
|
||||
export type PdjParams = {
|
||||
a: number,
|
||||
b: number,
|
||||
c: number,
|
||||
d: number
|
||||
};
|
||||
export const pdj =
|
||||
({a, b, c, d}: PdjParams): Variation =>
|
||||
(x, y) => [
|
||||
Math.sin(a * y) - Math.cos(b * x),
|
||||
Math.sin(c * x) - Math.cos(d * y)
|
||||
]
|
||||
}
|
||||
@ -1,14 +1,14 @@
|
||||
import { camera, histIndex } from "./camera"
|
||||
import { camera, histIndex } from "./camera";
|
||||
|
||||
export function plotBinary(x: number, y: number, image: ImageData) {
|
||||
const [pixelX, pixelY] = camera(x, y, image.width);
|
||||
const pixelIndex = histIndex(pixelX, pixelY, image.width, 4);
|
||||
if (pixelIndex < 0 || pixelIndex > image.data.length) {
|
||||
return;
|
||||
}
|
||||
const [pixelX, pixelY] = camera(x, y, image.width);
|
||||
if (pixelX < 0 || pixelX >= image.width || pixelY < 0 || pixelY >= image.height)
|
||||
return;
|
||||
|
||||
image.data[pixelIndex] = 0;
|
||||
image.data[pixelIndex + 1] = 0;
|
||||
image.data[pixelIndex + 2] = 0;
|
||||
image.data[pixelIndex + 3] = 0xff;
|
||||
const pixelIndex = histIndex(pixelX, pixelY, image.width, 4);
|
||||
|
||||
image.data[pixelIndex] = 0;
|
||||
image.data[pixelIndex + 1] = 0;
|
||||
image.data[pixelIndex + 2] = 0;
|
||||
image.data[pixelIndex + 3] = 0xff;
|
||||
}
|
||||
@ -1,10 +1,10 @@
|
||||
// hidden-start
|
||||
import {Coefs} from './coefs'
|
||||
import {Variation} from './variation'
|
||||
import { Coefs } from "./transform";
|
||||
import { Variation } from "./variation";
|
||||
// hidden-end
|
||||
export function popcorn({c, f}: Coefs): Variation {
|
||||
return (x, y) => [
|
||||
x + c * Math.sin(Math.tan(3 * y)),
|
||||
y + f * Math.sin(Math.tan(3 * x))
|
||||
export const popcorn =
|
||||
({ c, f }: Coefs): Variation =>
|
||||
(x, y) => [
|
||||
x + c * Math.sin(Math.tan(3 * y)),
|
||||
y + f * Math.sin(Math.tan(3 * x))
|
||||
];
|
||||
}
|
||||
@ -7,7 +7,8 @@ export function randomChoice<T>(
|
||||
);
|
||||
let choice = Math.random() * weightSum;
|
||||
|
||||
for (const [idx, elem] of choices.entries()) {
|
||||
for (const entry of choices.entries()) {
|
||||
const [idx, elem] = entry;
|
||||
const [weight, t] = elem;
|
||||
if (choice < weight) {
|
||||
return [idx, t];
|
||||
|
||||
@ -1,13 +1,23 @@
|
||||
export type Transform = (x: number, y: number) => [number, number];
|
||||
export type Transform =
|
||||
(x: number, y: number) =>
|
||||
[number, number];
|
||||
|
||||
export interface Coefs {
|
||||
a: number, b: number, c: number,
|
||||
d: number, e: number, f: number
|
||||
a: number,
|
||||
b: number,
|
||||
c: number,
|
||||
d: number,
|
||||
e: number,
|
||||
f: number
|
||||
}
|
||||
|
||||
export function applyCoefs(x: number, y: number, coefs: Coefs): [number, number] {
|
||||
return [
|
||||
(x * coefs.a + y * coefs.b + coefs.c),
|
||||
(x * coefs.d + y * coefs.e + coefs.f)
|
||||
]
|
||||
export function applyCoefs(
|
||||
x: number,
|
||||
y: number,
|
||||
coefs: Coefs
|
||||
): [number, number] {
|
||||
return [
|
||||
(x * coefs.a + y * coefs.b + coefs.c),
|
||||
(x * coefs.d + y * coefs.e + coefs.f)
|
||||
];
|
||||
}
|
||||
@ -1 +1,4 @@
|
||||
export type Variation = (x: number, y: number) => [number, number];
|
||||
export type Variation = (
|
||||
x: number,
|
||||
y: number
|
||||
) => [number, number];
|
||||
Loading…
Reference in New Issue
Block a user