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Code Issues Releases Wiki Activity

Clamp alpha reference to avoid degenerate case

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AnyOldName3 2021-01-01 16:01:33 +00:00
parent 54853380cd
commit 9b99c76032
1 changed files with 1 additions and 1 deletions
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files/shaders/alpha.glsl
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@ -15,7 +15,7 @@ uniform float alphaRef;
void alphaTest()
{
#if @alphaToCoverage
float coverageAlpha = (gl_FragData[0].a - alphaRef) / max(fwidth(gl_FragData[0].a), 0.0001) + 0.5;
float coverageAlpha = (gl_FragData[0].a - clamp(alphaRef, 0.0001, 0.9999)) / max(fwidth(gl_FragData[0].a), 0.0001) + 0.5;
// Some functions don't make sense with A2C or are a pain to think about and no meshes use them anyway
// Use regular alpha testing in such cases until someone complains.