Add billiard ball textures with procedural generation and visual rotation#15

Merged

TimBeyer merged 11 commits into

claude/add-billiard-textures-2W155

Mar 29, 2026

Commits on Mar 29, 2026

Add billiard ball textures with procedural generation and visual rotation
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Fix wild ball spinning by using per-frame incremental rotation
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Fix ball rotation direction and derive angular velocity for rolling balls
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Fix texture distortion by rendering in equirectangular projection
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Increase ball texture resolution from 512 to 2048
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Smooth spin visualization by sending angular trajectory to main thread
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Add characterization tests for low-energy cushion spin behavior
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Fix phantom spin on rolling balls — clamp angular velocity at zero crossing
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Fix angular velocity zero-crossing in physics, not just visualization
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Strengthen test suite: comparative spin tests, regime coverage, invariant checks
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Move cushion scenario balls to table center for better visual clarity
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