Why the classic Cornell Box avoids pure red and green walls
ssh4net · x · 2026-11-10
While reproducing the classic Cornell Box test scene, the author found that using clear red and clear green walls introduces rendering artifacts in such a simple scene. Only by defining unrealistically narrow, non-overlapping pigment bands for both walls can one of them appear black — suggesting why the original Cornell Box scene avoided those colors.
Related event: Spectral Rendering vs RGB: White Light on a Red Wall Exposes GI Distortion(4 posts)→
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