diff options
| author | StapleButter <thetotalworm@gmail.com> | 2017-06-01 15:16:44 +0200 |
|---|---|---|
| committer | StapleButter <thetotalworm@gmail.com> | 2017-06-01 15:16:44 +0200 |
| commit | 77d0a0d76e28df3d2393d62ff98ce3cec4431f33 (patch) | |
| tree | 39a6f2ca9492456ad9610999467c4f357de8e0b9 /src/GPU3D_Soft.cpp | |
| parent | d1781c8bf2a0bd65c72e7349834a20932467252d (diff) | |
only do lower-pixel rendering when rendering under an edge
Diffstat (limited to 'src/GPU3D_Soft.cpp')
| -rw-r--r-- | src/GPU3D_Soft.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/GPU3D_Soft.cpp b/src/GPU3D_Soft.cpp index 07222f2..e78524d 100644 --- a/src/GPU3D_Soft.cpp +++ b/src/GPU3D_Soft.cpp @@ -1027,10 +1027,14 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) continue; } + u32 dstattr = AttrBuffer[pixeladdr]; + // if depth test against the topmost pixel fails, test // against the pixel underneath if (!fnDepthTest(DepthBuffer[pixeladdr], z)) { + if (!(dstattr & 0x3)) continue; + pixeladdr += 258; if (!fnDepthTest(DepthBuffer[pixeladdr], z)) continue; @@ -1096,7 +1100,6 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) } else { - u32 dstattr = AttrBuffer[pixeladdr]; attr |= (1<<30); if (polygon->IsShadow) dstattr |= (1<<30); @@ -1148,10 +1151,14 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) continue; } + u32 dstattr = AttrBuffer[pixeladdr]; + // if depth test against the topmost pixel fails, test // against the pixel underneath if (!fnDepthTest(DepthBuffer[pixeladdr], z)) { + if (!(dstattr & 0x3)) continue; + pixeladdr += 258; if (!fnDepthTest(DepthBuffer[pixeladdr], z)) continue; @@ -1244,10 +1251,14 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) continue; } + u32 dstattr = AttrBuffer[pixeladdr]; + // if depth test against the topmost pixel fails, test // against the pixel underneath if (!fnDepthTest(DepthBuffer[pixeladdr], z)) { + if (!(dstattr & 0x3)) continue; + pixeladdr += 258; if (!fnDepthTest(DepthBuffer[pixeladdr], z)) continue; @@ -1313,7 +1324,6 @@ void RenderPolygonScanline(RendererPolygon* rp, s32 y) } else { - u32 dstattr = AttrBuffer[pixeladdr]; attr |= (1<<30); if (polygon->IsShadow) dstattr |= (1<<30); |