LYGIA Shader Library

Use:

YCbCr2rgb(<vec3|vec4> color)

Check it on Github

#ifndef FNC_YCBCR2RGB
#define FNC_YCBCR2RGB
vec3 YCbCr2rgb(in vec3 ycbcr) {
    float cb = ycbcr.y - .5;
    float cr = ycbcr.z - .5;
    float y = ycbcr.x;
    float r = 1.402 * cr;
    float g = -.344 * cb - .714 * cr;
    float b = 1.772 * cb;
    return vec3(r, g, b) + y;
}

vec4 YCbCr2rgb(in vec4 ycbcr) {
    return vec4(YCbCr2rgb(ycbcr.rgb),ycbcr.a);
}
#endif

Use:

YCbCr2rgb(<float3|float4> color)

Check it on Github

#ifndef FNC_YCBCR2RGB
#define FNC_YCBCR2RGB
float3 YCbCr2rgb(in float3 ycbcr) {
    float cb = ycbcr.y - .5;
    float cr = ycbcr.z - .5;
    float y = ycbcr.x;
    float r = 1.402 * cr;
    float g = -.344 * cb - .714 * cr;
    float b = 1.772 * cb;
    return float3(r, g, b) + y;
}

float4 YCbCr2rgb(in float4 ycbcr) {
    return float4(YCbCr2rgb(ycbcr.rgb),ycbcr.a);
}
#endif

Check it on Github

fn YCbCr2rgb(ycbcr: vec3<f32>) -> vec3<f32> {
    let cb = ycbcr.y - 0.5;
    let cr = ycbcr.z - 0.5;
    let y = ycbcr.x;
    let r = 1.402 * cr;
    let g = -0.344 * cb - 0.714 * cr;
    let b = 1.772 * cb;
    return vec3<f32>(r, g, b) + y;
}