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<?xml version="1.0" encoding="UTF-8" ?>
<Effect>
<MetaData>
<!--Simulates an artistic painting of the image-->
<Property name="NoiseSamp" formalName="Noise" filter="linear" clamp="repeat" type="Texture" default="./maps/effects/brushnoise.png" description="Texture to be used for the brush texture"/>
<Property name="brushAngle" formalName="Brush Angle" default="45" description="Amount to rotate the noise texture."/>
<Property name="brushLen" formalName="Stroke Length" min="0" max="3" default="1" description="How far to offset the image/'brush'."/>
<Property name="brushSize" formalName="Stroke Size" min="10" max="200" default="100" description="Scale the brush.\nSmaller values yield larger sizes."/>
</MetaData>
<Shaders>
<Shader>
<FragmentShader>
void frag (void)
{
if ( flagNoiseSamp != 0 ) {
float alpha = radians(brushAngle);
float cosAlpha = cos(alpha);
float sinAlpha = sin(alpha);
mat2 rotMat = mat2(cosAlpha, sinAlpha, -sinAlpha, cosAlpha);
vec2 uv0 = TexCoord / brushSize * 1000.0;
uv0 = (uv0.yx * rotMat).yx;
vec2 uv1 = texture2D_NoiseSamp(fract(uv0)).xy - 0.5;
uv1*= vec2(1.0, 0.01);
uv1*= rotMat;
vec2 uv2 = TexCoord + uv1 * 0.1 * brushLen;
vec2 halfPixelSize = 0.5 / Texture0Info.xy;
colorOutput(texture2D_0(clamp(uv2, halfPixelSize, 1.0-halfPixelSize)));
}
else
colorOutput(texture2D_0(TexCoord));
}
</FragmentShader>
</Shader>
</Shaders>
</Effect>
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