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