Fix: divide by the determinant in CATransform3DInvert - #13
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ivucica merged 1 commit intoJul 29, 2026
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CATransform3DInvert computed the adjugate of the matrix but never divided by the determinant, so it returned the adjugate rather than the inverse: inverting CATransform3DMakeScale(2, 2, 2) gave a diagonal of 4, 4, 4, 8 instead of 0.5, 0.5, 0.5, 1. Divide each element by the determinant.
This makes the hopeful assertion in the CATransform3D tests (#12) pass. Checked against Apple QuartzCore on a macOS runner.