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Optimise depth calculation for quad shader.

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This commit is contained in:
Ian Curtis 2018-11-27 20:43:27 +00:00
parent 6eaf204d72
commit 6075352868
1 changed files with 1 additions and 1 deletions
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Src/Graphics/New3D/R3DShaderQuads.h
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@ -315,7 +315,7 @@ void QuadraticInterpolation()
depth = ((vertex.z / vertex.w) + 1.0) / 2.0;
}
else {
vertex = projMat * vec4(fsViewVertex,1.0);
vertex.z = (projMat[2][2] * fsViewVertex.z) + projMat[3][2]; // standard projMat * vertex - but just using Z components
depth = ((vertex.z * interp_oneOverW) + 1.0) / 2.0;
}