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martinlaxenaire/mixing-textures-based-on-alpha.glsl

Created May 3, 2021 09:53
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Mixing two vec4 textures based on alpha in GLSL
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mixing-textures-based-on-alpha.glsl
// mix foreground and background based on foreground alpha value
vec4 finalColor;
finalColor.rgb = foreground.rgb + (background.rgb * (1.0 - foreground.a));
finalColor.a = foreground.a + (background.a * (1.0 - foreground.a));
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