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Support reversing normals in software transform.

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This commit is contained in:
Unknown W. Brackets 2014-06-17 23:29:33 -07:00
parent d4c416a437
commit 171a865b37
1 changed files with 7 additions and 1 deletions
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8
GPU/GLES/SoftwareTransform.cpp
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@ -213,6 +213,9 @@ void TransformDrawEngine::SoftwareTransformAndDraw(
Vec3ByMatrix43(out, pos, gstate.worldMatrix);
if (reader.hasNormal()) {
reader.ReadNrm(normal.AsArray());
if (gstate.areNormalsReversed()) {
normal = -normal;
}
Norm3ByMatrix43(worldnormal.AsArray(), normal.AsArray(), gstate.worldMatrix);
worldnormal = worldnormal.Normalized();
}
@ -242,7 +245,10 @@ void TransformDrawEngine::SoftwareTransformAndDraw(
Vec3ByMatrix43(out, psum.AsArray(), gstate.worldMatrix);
if (reader.hasNormal()) {
normal = nsum;
Norm3ByMatrix43(worldnormal.AsArray(), nsum.AsArray(), gstate.worldMatrix);
if (gstate.areNormalsReversed()) {
normal = -normal;
}
Norm3ByMatrix43(worldnormal.AsArray(), normal.AsArray(), gstate.worldMatrix);
worldnormal = worldnormal.Normalized();
}
}