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solvecraft/crates/gpu/tests
PaddleStroke 526cdfd247 Zebra: flat faces keep one stripe colour while the view turns (#2153) (#9761)
* claim: #2153

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

* Zebra: flat faces keep one stripe colour while the view turns (#2153)

A face whose normal lies in the upright plane through the view (every
horizontal face) reflects straight ahead, where the zebra's sideways
coordinate is zero: exactly on the edge between a black and a white
stripe. Rounding then picked one or the other from frame to frame, so
the face flickered while the camera orbited. Straight ahead is now white.

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

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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-31 00:03:59 +00:00
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