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Henrik RydgårdandClaude Opus 5.5
7df47b336b
The GE never forms a world position for lighting: the vector to a point or spot light is the light position minus the world translation, minus the model position times the world matrix, summed like a matrix row. gpu/probe exp153-158 (point lights 0.02-20 units away, spot exponents up to 40, game-like world matrices; exp153 is a Syphon Filter vertex) are exact, and Syphon Filter (#13568) becomes 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.