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Henrik RydgårdandClaude Opus 5.5
c6d345f2fd
The spot direction isn't normalized: its dot with the light vector is scaled by the direction's rsqrt. And attenuation and spot scale the light's colors as separate 8-bit factors rather than one product (gpu/probe exp97-100, exact on all spot jobs). 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.