root/as3/Astro/ShaderFilter/CalcShader/src/shaders/colorize.pbk

<languageVersion : 1.0;>

kernel ColorFilter
<
    namespace   : "muta";
    vendor      : "muta";
    version     : 1;
    description : "This filter Fill color.";
>
{
    parameter pixel4 color
    <
        defaultValue : pixel4(0, 0, 0, 1);
        description  : "color";
    >;
    
    input image4 src;
    output pixel4 dst;

    void evaluatePixel()
    {
        pixel4 tmp = sampleNearest(src, outCoord());
        tmp.rgba += color;
        
        dst = tmp;
    }
}