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Henrik RydgårdandClaude Opus 5.5
b1744e809e
The stencil test compares ref against the buffer's value, the other way around from the alpha test, but shared its shortcuts: GREATER with ref 0 and LESS with ref 0xFF became NOTEQUAL instead of NEVER, so those draws wrote pixels the PSP rejects. Its own shortcuts are mirrored (gpu/probe exp120: every function and op in 8888, 5551 and 4444, exact). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
To get to 100% compatibility, we will need a software renderer as there are games out there that do tricks that can't really be faked in a sensible way. Useful for homebrew too that mix sw and accel rendering.