LYGIA Shader Library

sourceIn (`lygia`/`color`/`composite`/`sourceIn`)

Porter Duff Source In Compositing

Use:

<vec4> compositeSourceIn(<vec4> src, <vec4> dst)

Check it on Github


#ifndef FNC_COMPOSITE_SRC_IN
#define FNC_COMPOSITE_SRC_IN

float compositeSourceIn(float src, float dst) {
    return src * dst;
}

vec3 compositeSourceIn(vec3 srcColor, vec3 dstColor, float srcAlpha, float dstAlpha) {
    return srcColor * dstAlpha;
}

vec4 compositeSourceIn(vec4 srcColor, vec4 dstColor) {
    vec4 result = vec4(0.0);

    result.rgb = compositeSourceIn(srcColor.rgb, dstColor.rgb, srcColor.a, dstColor.a);
    result.a = compositeSourceIn(srcColor.a, dstColor.a);

    return result;
}

#endif

Use:

<float4> compositeSourceIn(<float4> src, <float4> dst)

Check it on Github


#ifndef FNC_COMPOSITE_SRC_IN
#define FNC_COMPOSITE_SRC_IN

float compositeSourceIn(float src, float dst) {
    return src * dst;
}

float3 compositeSourceIn(float3 srcColor, float3 dstColor, float srcAlpha, float dstAlpha) {
    return srcColor * dstAlpha;
}

float4 compositeSourceIn(float4 srcColor, float4 dstColor) {
    float4 result;

    result.rgb = compositeSourceIn(srcColor.rgb, dstColor.rgb, srcColor.a, dstColor.a);
    result.a = compositeSourceIn(srcColor.a, dstColor.a);

    return result;
}

#endif

Use:

<float4> compositeSourceIn(<float4> src, <float4> dst)

Check it on Github


#ifndef FNC_COMPOSITE_SRC_IN
#define FNC_COMPOSITE_SRC_IN

float compositeSourceIn(float src, float dst)
{
    return src * dst;
}

float3 compositeSourceIn(float3 srcColor, float3 dstColor, float srcAlpha, float dstAlpha)
{
    return srcColor * dstAlpha;
}

float4 compositeSourceIn(float4 srcColor, float4 dstColor) 
{
    float4 result;

    result.rgb = compositeSourceIn(srcColor.rgb, dstColor.rgb, srcColor.a, dstColor.a);
    result.a = compositeSourceIn(srcColor.a, dstColor.a);

    return result;
}

#endif

Licenses

LYGIA is dual-licensed under the Prosperity License and the Patron License for sponsors and contributors.

Sponsors and contributors are automatically added to the Patron License and they can ignore the any non-commercial rule of the Prosperity Licensed software (please take a look to the exception).

It's also possible to get a permanent comercial license hook to a single and specific version of LYGIA.

LYGIA Shader Library

sourceIn (lygia/color/composite/sourceIn)

Licenses

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sourceIn (`lygia`/`color`/`composite`/`sourceIn`)