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- #ifndef SKELETON_TINT_COMMON_INCLUDED
- #define SKELETON_TINT_COMMON_INCLUDED
- float4 fragTintedColor(float4 texColor, float3 darkTintColor, float4 lightTintColorPMA, float lightColorAlpha, float darkColorAlpha) {
- float a = texColor.a * lightTintColorPMA.a;
- #if !defined(_STRAIGHT_ALPHA_INPUT)
- float3 texDarkColor = (texColor.a - texColor.rgb);
- #else
- float3 texDarkColor = (1 - texColor.rgb);
- #endif
- float3 darkColor = texDarkColor * darkTintColor.rgb * lightColorAlpha;
- float3 lightColor = texColor.rgb * lightTintColorPMA.rgb;
- float4 fragColor = float4(darkColor + lightColor, a);
- #if defined(_STRAIGHT_ALPHA_INPUT)
- fragColor.rgb *= texColor.a;
- #endif
- #if defined(_DARK_COLOR_ALPHA_ADDITIVE)
- fragColor.a = a * (1 - darkColorAlpha);
- #endif
- return fragColor;
- }
- #endif
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