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Simulate N64 color sign-extend.

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This commit is contained in:
Sergey Lipskiy 2016-11-03 21:24:45 +07:00
parent 472c31986c
commit 2656436217
1 changed files with 2 additions and 0 deletions
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2
src/ShaderUtils.cpp
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@ -295,6 +295,8 @@ int compileCombiner(Combiner & _color, Combiner & _alpha, std::string & _strShad
nInputs |= _compileCombiner(_color.stage[0], ColorInput, _strShader);
_strShader.append(" combined_color = vec4(color1, alpha1); \n");
// Simulate N64 color sign-extend.
_strShader.append(" combined_color += vec4(-2.0) * (vec4(1.0) - step(combined_color, vec4(1.0))); \n");
if (_alpha.numStages == 2) {
_strShader.append(" alpha2 = ");
_correctSecondStageParams(_alpha.stage[1]);