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Version:
19.07.15-1 ▾
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vec4 FUNCNAME(vec2 tc) {
vec4 orig = INPUT1(tc);
vec4 blurred = INPUT2(tc);
float luminance = clamp(dot(orig.rgb, vec3(0.2126, 0.7152, 0.0722)), 0.0, 1.0);
return mix(orig, blurred, luminance * vec4(PREFIX(blurred_mix_amount)));
}