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Alice Vital
348
Variations/varPostFalloff2.pas
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348
Variations/varPostFalloff2.pas
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{
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Apophysis Copyright (C) 2001-2004 Mark Townsend
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Apophysis Copyright (C) 2005-2006 Ronald Hordijk, Piotr Borys, Peter Sdobnov
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Apophysis Copyright (C) 2007-2008 Piotr Borys, Peter Sdobnov
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Apophysis "3D hack" Copyright (C) 2007-2008 Peter Sdobnov
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Apophysis "7X" Copyright (C) 2009-2010 Georg Kiehne
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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}
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unit varPostFalloff2;
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interface
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uses
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BaseVariation, XFormMan;
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type
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TVariationPostFalloff2 = class(TBaseVariation)
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const
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n_scatter : string = 'post_falloff2_scatter';
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n_mindist : string = 'post_falloff2_mindist';
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n_mul_x : string = 'post_falloff2_mul_x';
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n_mul_y : string = 'post_falloff2_mul_y';
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n_mul_z : string = 'post_falloff2_mul_z';
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n_mul_c : string = 'post_falloff2_mul_c';
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n_x0 : string = 'post_falloff2_x0';
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n_y0 : string = 'post_falloff2_y0';
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n_z0 : string = 'post_falloff2_z0';
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n_invert : string = 'post_falloff2_invert';
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n_blurtype : string = 'post_falloff2_type';
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private
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rmax: double;
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x0, y0, z0: double;
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scatter, mindist: double;
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invert, blurtype: integer;
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mul_x, mul_y, mul_z, mul_c: double;
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public
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constructor Create;
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class function GetName: string; override;
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class function GetInstance: TBaseVariation; override;
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function GetNrVariables: integer; override;
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function GetVariableNameAt(const Index: integer): string; override;
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function SetVariable(const Name: string; var value: double): boolean; override;
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function GetVariable(const Name: string; var value: double): boolean; override;
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function ResetVariable(const Name: string): boolean; override;
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procedure Prepare; override;
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procedure CalcFunction; override;
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procedure CalcFunctionRadial;
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procedure CalcFunctionGaussian;
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procedure GetCalcFunction(var f: TCalcFunction); override;
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end;
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implementation
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uses
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Math;
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///////////////////////////////////////////////////////////////////////////////
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procedure TVariationPostFalloff2.Prepare;
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begin
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rmax := 0.04 * scatter;
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end;
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procedure TVariationPostFalloff2.GetCalcFunction(var f: TCalcFunction);
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begin
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if blurtype = 1 then f := CalcFunctionRadial
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else if blurtype = 2 then f := CalcFunctionGaussian
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else f := CalcFunction;
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end;
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procedure TVariationPostFalloff2.CalcFunction;
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var
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in_x, in_y, in_z, d: double;
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begin
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in_x := FPx^;
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in_y := FPy^;
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in_z := FPz^;
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d := sqrt(sqr(in_x - x0) + sqr(in_y - y0) + sqr(in_z - z0));
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if (invert <> 0) then d := 1 - d; if (d < 0) then d := 0;
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d := (d - mindist) * rmax; if (d < 0) then d := 0;
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FPx^ := VVAR * (in_x + mul_x * random * d);
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FPy^ := VVAR * (in_y + mul_y * random * d);
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FPz^ := VVAR * (in_z + mul_z * random * d);
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color^ := Abs(Frac(color^ + mul_c * random * d));
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end;
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procedure TVariationPostFalloff2.CalcFunctionRadial;
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var
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in_x, in_y, in_z, d, r_in: double;
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sigma, phi, r, sins, coss, sinp, cosp: double;
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begin
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in_x := FPx^;
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in_y := FPy^;
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in_z := FPz^;
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r_in := sqrt(sqr(in_x) + sqr(in_y) + sqr(in_z)) + 1e-6;
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d := sqrt(sqr(in_x - x0) + sqr(in_y - y0) + sqr(in_z - z0));
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if (invert <> 0) then d := 1 - d; if (d < 0) then d := 0;
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d := (d - mindist) * rmax; if (d < 0) then d := 0;
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sigma := ArcSin(in_z / r_in) + mul_z * random * d;
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phi := ArcTan2(in_y, in_x) + mul_y * random * d;
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r := r_in + mul_x * random * d;
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SinCos(sigma, sins, coss);
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SinCos(phi, sinp, cosp);
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FPx^ := VVAR * (r * coss * cosp);
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FPy^ := VVAR * (r * coss * sinp);
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FPz^ := VVAR * (sins);
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color^ := Abs(Frac(color^ + mul_c * random * d));
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end;
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procedure TVariationPostFalloff2.CalcFunctionGaussian;
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var
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in_x, in_y, in_z, d: double;
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sigma, phi, r, sins, coss, sinp, cosp: double;
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begin
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in_x := FPx^;
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in_y := FPy^;
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in_z := FPz^;
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d := sqrt(sqr(in_x - x0) + sqr(in_y - y0) + sqr(in_z - z0));
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if (invert <> 0) then d := 1 - d; if (d < 0) then d := 0;
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d := (d - mindist) * rmax; if (d < 0) then d := 0;
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sigma := d * random * 2 * PI;
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phi := d * random * PI;
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r := d * random;
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SinCos(sigma, sins, coss);
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SinCos(phi, sinp, cosp);
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FPx^ := VVAR * (in_x + mul_x * r * coss * cosp);
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FPy^ := VVAR * (in_y + mul_y * r * coss * sinp);
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FPz^ := VVAR * (in_z + mul_z * r * sins);
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color^ := Abs(Frac(color^ + mul_c * random * d));
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end;
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///////////////////////////////////////////////////////////////////////////////
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constructor TVariationPostFalloff2.Create;
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begin
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scatter := 1;
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mindist := 0.5;
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mul_x := 1;
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mul_y := 1;
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mul_z := 0;
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mul_c := 0;
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x0 := 0;
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y0 := 0;
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z0 := 0;
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invert := 0;
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blurtype := 0;
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationPostFalloff2.GetInstance: TBaseVariation;
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begin
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Result := TVariationPostFalloff2.Create;
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end;
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///////////////////////////////////////////////////////////////////////////////
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class function TVariationPostFalloff2.GetName: string;
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begin
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Result := 'post_falloff2';
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationPostFalloff2.GetVariableNameAt(const Index: integer): string;
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begin
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case Index Of
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0: Result := n_scatter;
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1: Result := n_mindist;
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2: Result := n_mul_x;
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3: Result := n_mul_y;
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4: Result := n_mul_z;
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5: Result := n_mul_c;
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6: Result := n_x0;
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7: Result := n_y0;
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8: Result := n_z0;
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9: Result := n_invert;
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10: Result := n_blurtype;
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else
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Result := '';
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end
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationPostFalloff2.SetVariable(const Name: string; var value: double): boolean;
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begin
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Result := False;
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if Name = n_scatter then begin
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if Value < 1e-6 then Value := 1e-6;
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scatter := Value;
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Result := True;
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end else if Name = n_mindist then begin
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if Value < 0 then Value := 0;
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mindist := Value;
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Result := True;
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end else if Name = n_mul_x then begin
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if Value < 0 then Value := 0
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else if Value > 1 then Value := 1;
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mul_x := Value;
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Result := True;
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end else if Name = n_mul_y then begin
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if Value < 0 then Value := 0
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else if Value > 1 then Value := 1;
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mul_y := Value;
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Result := True;
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end else if Name = n_mul_z then begin
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if Value < 0 then Value := 0
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else if Value > 1 then Value := 1;
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mul_z := Value;
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Result := True;
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end else if Name = n_mul_c then begin
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if Value < 0 then Value := 0
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else if Value > 1 then Value := 1;
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mul_c := Value;
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Result := True;
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end else if Name = n_x0 then begin
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x0 := Value;
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Result := True;
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end else if Name = n_y0 then begin
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y0 := Value;
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Result := True;
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end else if Name = n_z0 then begin
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z0 := Value;
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Result := True;
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end else if Name = n_invert then begin
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if (Value > 1) then Value := 1;
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if (Value < 0) then Value := 0;
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invert := Round(Value);
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Result := True;
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end else if Name = n_blurtype then begin
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if (Value > 2) then Value := 2;
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if (Value < 0) then Value := 0;
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blurtype := Round(Value);
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Result := True;
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end
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end;
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function TVariationPostFalloff2.ResetVariable(const Name: string): boolean;
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begin
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Result := False;
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if Name = n_scatter then begin
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scatter := 1;
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Result := True;
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end else if Name = n_mindist then begin
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mindist := 0.5;
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Result := True;
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end else if Name = n_mul_x then begin
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mul_x := 1;
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Result := True;
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end else if Name = n_mul_y then begin
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mul_y := 1;
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Result := True;
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end else if Name = n_mul_z then begin
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mul_z := 0;
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Result := True;
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end else if Name = n_mul_c then begin
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mul_c := 0;
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Result := True;
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end else if Name = n_x0 then begin
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x0 := 0;
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Result := True;
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end else if Name = n_y0 then begin
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y0 := 0;
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Result := True;
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end else if Name = n_z0 then begin
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z0 := 0;
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Result := True;
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end else if Name = n_invert then begin
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invert := 0;
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Result := True;
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end else if Name = n_blurtype then begin
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blurtype := 0;
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Result := True;
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end
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationPostFalloff2.GetNrVariables: integer;
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begin
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Result := 11
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end;
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///////////////////////////////////////////////////////////////////////////////
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function TVariationPostFalloff2.GetVariable(const Name: string; var value: double): boolean;
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begin
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Result := False;
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if Name = n_scatter then begin
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Value := scatter;
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Result := True;
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end else if Name = n_mindist then begin
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Value := mindist;
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Result := True;
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end else if Name = n_mul_x then begin
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Value := mul_x;
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Result := True;
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end else if Name = n_mul_y then begin
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Value := mul_y;
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Result := True;
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end else if Name = n_mul_z then begin
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Value := mul_z;
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Result := True;
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end else if Name = n_mul_c then begin
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Value := mul_c;
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Result := True;
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end else if Name = n_x0 then begin
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Value := x0;
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Result := True;
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end else if Name = n_y0 then begin
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Value := y0;
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Result := True;
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end else if Name = n_z0 then begin
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Value := z0;
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Result := True;
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end else if Name = n_invert then begin
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Value := invert;
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Result := True;
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end else if Name = n_blurtype then begin
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Value := blurtype;
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Result := True;
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end
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end;
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///////////////////////////////////////////////////////////////////////////////
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initialization
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RegisterVariation(TVariationClassLoader.Create(TVariationPostFalloff2), true, true);
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end.
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