apophysis7x/Plugin/blur_linear.c

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/*
Apophysis Plugin
Copyright (C) 2009 Joel Faber
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
// Must define this structure before we include apoplugin.h
typedef struct
{
double blur_linear_length;
double blur_linear_angle;
double s;
double c;
} Variables;
#include "apoplugin.h"
// Set the name of this plugin
APO_PLUGIN("blur_linear");
// Define the Variables
APO_VARIABLES(
VAR_REAL(blur_linear_length, 0.0),
VAR_REAL_CYCLE(blur_linear_angle, 0.0, M_2PI, 0.0)
);
// You must call the argument "vp".
int PluginVarPrepare(Variation* vp)
{
fsincos(VAR(blur_linear_angle), &VAR(s), &VAR(c));
return TRUE; // Always return TRUE.
}
// You must call the argument "vp".
int PluginVarCalc(Variation* vp)
{
double r = VAR(blur_linear_length) * random01();
FPx += VVAR * (FTx + r * VAR(c));
FPy += VVAR * (FTy + r * VAR(s));
return TRUE;
}