lygia/color/composite/destinationIn)Porter Duff Destination In Compositing
Use:
<vec4> compositeDestinationIn(<vec4> src, <vec4> dst)
#ifndef FNC_COMPOSITE_DST_IN
#define FNC_COMPOSITE_DST_IN
float compositeDestinationIn(float src, float dst) {
return dst * src;
}
vec3 compositeDestinationIn(vec3 srcColor, vec3 dstColor, float srcAlpha, float dstAlpha) {
return dstColor * srcAlpha;
}
vec4 compositeDestinationIn(vec4 srcColor, vec4 dstColor) {
vec4 result = vec4(0.0);
result.rgb = compositeDestinationIn(srcColor.rgb, dstColor.rgb, srcColor.a, dstColor.a);
result.a = compositeDestinationIn(srcColor.a, dstColor.a);
return result;
}
#endif
Use:
<float4> compositeDestinationIn(<float4> src, <float4> dst)
#ifndef FNC_COMPOSITE_DST_IN
#define FNC_COMPOSITE_DST_IN
float compositeDestinationIn(float src, float dst) {
return dst * src;
}
float3 compositeDestinationIn(float3 srcColor, float3 dstColor, float srcAlpha, float dstAlpha) {
return dstColor * srcAlpha;
}
float4 compositeDestinationIn(float4 srcColor, float4 dstColor) {
float4 result;
result.rgb = compositeDestinationIn(srcColor.rgb, dstColor.rgb, srcColor.a, dstColor.a);
result.a = compositeDestinationIn(srcColor.a, dstColor.a);
return result;
}
#endif
Use:
<float4> compositeDestinationIn(<float4> src, <float4> dst)
#ifndef FNC_COMPOSITE_DST_IN
#define FNC_COMPOSITE_DST_IN
float compositeDestinationIn(float src, float dst)
{
return dst * src;
}
float3 compositeDestinationIn(float3 srcColor, float3 dstColor, float srcAlpha, float dstAlpha)
{
return dstColor * srcAlpha;
}
float4 compositeDestinationIn(float4 srcColor, float4 dstColor)
{
float4 result;
result.rgb = compositeDestinationIn(srcColor.rgb, dstColor.rgb, srcColor.a, dstColor.a);
result.a = compositeDestinationIn(srcColor.a, dstColor.a);
return result;
}
#endif
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