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<?xml version="1.0" encoding="UTF-8" ?>
<Effect>
<MetaData>
<Property name="vig_color" formalName="Vignet Color" type="Color" default="0.5 0.5 0.5" description="The color to use for the Vignetting."/>
<Property name="vig_strenght" formalName="Strenght" min="0" max="15" default="15.0" description="Strenght of Vignetting."/>
<Property name="vig_radius" formalName="Radius" min="0" max="5" default="0.35" description="Size of Vignetting."/>
</MetaData>
<Shaders>
<Shared></Shared>
<VertexShaderShared></VertexShaderShared>
<FragmentShaderShared></FragmentShaderShared>
<Shader name="main">
<VertexShader></VertexShader>
<FragmentShader><![CDATA[
void frag()
{
float radius = vig_radius;
vec4 origColor = texture2D_0(TexCoord);
vec2 uv = TexCoord.xy;
vec2 center = vec2(0.5);
vec4 bg = origColor;
uv *= 1.0 - uv.yx;
float vig = uv.x*uv.y * vig_strenght;
vig = pow(vig, vig_radius);
vec4 vigmixcolor = vec4(vig_color,vig) * vec4(vig);
gl_FragColor = vec4(mix(origColor,vigmixcolor,1.0-vig));
}
]]></FragmentShader>
</Shader>
</Shaders>
<Passes>
<Pass shader="main" input="[source]" output="[dest]"/>
</Passes>
</Effect>
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