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only fill edges when translucent if blending is enabled (#1882)

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Jaklyy 2023-11-25 12:40:07 -05:00 committed by GitHub
parent 346dd4006e
commit ad7b1a8c61
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 6 deletions
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14
src/GPU3D_Soft.cpp
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@ -747,7 +747,7 @@ void SoftRenderer::RenderShadowMaskScanline(RendererPolygon* rp, s32 y)
std::swap(zl, zr);
// CHECKME: edge fill rules for swapped opaque shadow mask polygons
if ((polyalpha < 31) || (GPU.GPU3D.RenderDispCnt & (3<<4)))
if ((GPU.GPU3D.RenderDispCnt & ((1<<4)|(1<<5))) || ((polyalpha < 31) && (GPU.GPU3D.RenderDispCnt & (1<<3))) || wireframe)
{
l_filledge = true;
r_filledge = true;
@ -775,7 +775,7 @@ void SoftRenderer::RenderShadowMaskScanline(RendererPolygon* rp, s32 y)
rp->SlopeR.EdgeParams<false>(&r_edgelen, &r_edgecov);
// CHECKME: edge fill rules for unswapped opaque shadow mask polygons
if ((polyalpha < 31) || (GPU.GPU3D.RenderDispCnt & (3<<4)))
if ((GPU.GPU3D.RenderDispCnt & ((1<<4)|(1<<5))) || ((polyalpha < 31) && (GPU.GPU3D.RenderDispCnt & (1<<3))) || wireframe)
{
l_filledge = true;
r_filledge = true;
@ -979,9 +979,10 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y)
// * right edge is filled if slope > 1, or if the left edge = 0, but is never filled if it is < -1
// * left edge is filled if slope <= 1
// * the bottom-most pixel of negative x-major slopes are filled if they are next to a flat bottom edge
// edges are always filled if antialiasing/edgemarking are enabled or if the pixels are translucent
// edges are always filled if antialiasing/edgemarking are enabled,
// if the pixels are translucent and alpha blending is enabled, or if the polygon is wireframe
// checkme: do swapped line polygons exist?
if ((polyalpha < 31) || wireframe || (GPU.GPU3D.RenderDispCnt & ((1<<4)|(1<<5))))
if ((GPU.GPU3D.RenderDispCnt & ((1<<4)|(1<<5))) || ((polyalpha < 31) && (GPU.GPU3D.RenderDispCnt & (1<<3))) || wireframe)
{
l_filledge = true;
r_filledge = true;
@ -1014,8 +1015,9 @@ void SoftRenderer::RenderPolygonScanline(RendererPolygon* rp, s32 y)
// * edges with slope = 0 are always filled
// * the bottom-most pixel of negative x-major slopes are filled if they are next to a flat bottom edge
// * edges are filled if both sides are identical and fully overlapping
// edges are always filled if antialiasing/edgemarking are enabled or if the pixels are translucent
if ((polyalpha < 31) || wireframe || (GPU.GPU3D.RenderDispCnt & ((1<<4)|(1<<5))))
// edges are always filled if antialiasing/edgemarking are enabled,
// if the pixels are translucent and alpha blending is enabled, or if the polygon is wireframe
if ((GPU.GPU3D.RenderDispCnt & ((1<<4)|(1<<5))) || ((polyalpha < 31) && (GPU.GPU3D.RenderDispCnt & (1<<3))) || wireframe)
{
l_filledge = true;
r_filledge = true;