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Pica: Implement W-Buffer in SW rasterizer

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This commit is contained in:
Jannik Vogel 2016-03-20 01:53:49 +01:00
parent 006fe5fc0f
commit 4c98113b57
4 changed files with 43 additions and 11 deletions
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4
src/video_core/clipper.cpp
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@ -75,8 +75,6 @@ static void InitScreenCoordinates(OutputVertex& vtx)
viewport.halfsize_y = float24::FromRaw(regs.viewport_size_y);
viewport.offset_x = float24::FromFloat32(static_cast<float>(regs.viewport_corner.x));
viewport.offset_y = float24::FromFloat32(static_cast<float>(regs.viewport_corner.y));
viewport.zscale = float24::FromRaw(regs.viewport_depth_range);
viewport.offset_z = float24::FromRaw(regs.viewport_depth_far_plane);
float24 inv_w = float24::FromFloat32(1.f) / vtx.pos.w;
vtx.color *= inv_w;
@ -89,7 +87,7 @@ static void InitScreenCoordinates(OutputVertex& vtx)
vtx.screenpos[0] = (vtx.pos.x * inv_w + float24::FromFloat32(1.0)) * viewport.halfsize_x + viewport.offset_x;
vtx.screenpos[1] = (vtx.pos.y * inv_w + float24::FromFloat32(1.0)) * viewport.halfsize_y + viewport.offset_y;
vtx.screenpos[2] = viewport.offset_z + vtx.pos.z * inv_w * viewport.zscale;
vtx.screenpos[2] = vtx.pos.z * inv_w;
}
void ProcessTriangle(const OutputVertex &v0, const OutputVertex &v1, const OutputVertex &v2) {