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Henrik RydgårdandClaude Opus 5.5 7c5eda25f4 Software transform clipping: split clipped quads like the GE, cull beyond far first

With one vertex behind the near plane, the GE splits the remaining quad from
the vertex before the clipped one (gpu/probe exp43, exp44, as in SoftGPU's
Clipper.cpp). The other diagonal could put a far off-screen near-plane vertex
in both halves, so range culling dropped the whole triangle: the floor in
#16131's box test vanished. The index generator reverses triangles to flip
culling, so the batch's order is passed along.

Triangles entirely beyond the far plane are now culled even when in front of
the near plane, with the cull-distance epsilon, so z/w = 1.0000172 (exactly
1.0 to the GE) still counts as inside.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-08 16:16:24 +02:00

D3D11Util.cpp

D3D11: Don't silently draw with a shader that failed to compile

2026-09-04 12:08:21 -06:00

D3D11Util.h

D3D11: Check Map() results

2026-09-29 13:16:59 -06:00

DrawEngineD3D11.cpp

Software transform clipping: split clipped quads like the GE, cull beyond far first

2026-10-08 16:16:24 +02:00

DrawEngineD3D11.h

D3D11: Note that the state object caches are deliberately never trimmed