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Pica: Initial support for multitexturing.

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This commit is contained in:
Tony Wasserka 2014-12-06 19:10:08 +01:00
parent 95be6a09b2
commit fd2539121c
4 changed files with 115 additions and 31 deletions
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9
src/video_core/vertex_shader.h
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@ -27,15 +27,18 @@ struct OutputVertex {
Math::Vec4<float24> dummy; // quaternions (not implemented, yet)
Math::Vec4<float24> color;
Math::Vec2<float24> tc0;
Math::Vec2<float24> tc1;
float24 pad[6];
Math::Vec2<float24> tc2;
// Padding for optimal alignment
float24 pad[14];
float24 pad2[4];
// Attributes used to store intermediate results
// position after perspective divide
Math::Vec3<float24> screenpos;
float24 pad2;
float24 pad3;
// Linear interpolation
// factor: 0=this, 1=vtx
@ -44,6 +47,8 @@ struct OutputVertex {
// TODO: Should perform perspective correct interpolation here...
tc0 = tc0 * factor + vtx.tc0 * (float24::FromFloat32(1) - factor);
tc1 = tc1 * factor + vtx.tc1 * (float24::FromFloat32(1) - factor);
tc2 = tc2 * factor + vtx.tc2 * (float24::FromFloat32(1) - factor);
screenpos = screenpos * factor + vtx.screenpos * (float24::FromFloat32(1) - factor);