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softgpu: Attempt to implement GE_PROJMAP_UV.

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Looks okay, not sure if it's fully correct.
This commit is contained in:
Unknown W. Brackets 2013-11-23 13:07:07 -08:00
parent 9c545eea82
commit 2f0c8c2877
2 changed files with 13 additions and 2 deletions
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12
GPU/Software/Rasterizer.cpp
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@ -206,10 +206,18 @@ static inline void GetTextureCoordinates(const VertexData& v0, const VertexData&
{
// projection mapping, TODO: Move this code to TransformUnit!
Vec3<float> source;
if (gstate.getUVProjMode() == GE_PROJMAP_POSITION) {
switch (gstate.getUVProjMode()) {
case GE_PROJMAP_POSITION:
source = ((v0.modelpos * w0 + v1.modelpos * w1 + v2.modelpos * w2) / (w0+w1+w2));
} else {
break;
case GE_PROJMAP_UV:
source = Vec3f((v0.texturecoords * w0 + v1.texturecoords * w1 + v2.texturecoords * w2) / (w0 + w1 + w2), 0.0f);
break;
default:
ERROR_LOG_REPORT(G3D, "Software: Unsupported UV projection mode %x", gstate.getUVProjMode());
break;
}
Mat3x3<float> tgen(gstate.tgenMatrix);