模糊 shader
<languageVersion : 1.0;>

kernel NewFilter
< namespace : "Your Namespace";
vendor : "Your Vendor";
version : 1;
description : "your description";
>
{

    input image4 src;    output pixel4 dst;    void    evaluatePixel()    {        float2 pos = outCoord();        pixel4 p = sampleNearest(src,pos);                p += sampleNearest(src,pos + float2(10,2));        p += sampleNearest(src,pos - float2(10,2));        dst = p;    }