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Henrik RydgårdandClaude Opus 5.5 d3ea417241 Unit tests: Allow rsqrt precision in spline normal lengths
x86 normalizes with a bare _mm_rsqrt_ps, so normal lengths are only good
to about 3.7e-4 there and the 1e-4 check failed on every x86 CI job.
Compare direction after normalizing instead.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
2026-09-30 13:29:12 -06:00
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