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Sebastian Parborg 119d0cd2ab Fix normal computation in opensubdiv when surface derivates are the same ...

In very rare occations, the returned derivates would be the same. This
would lead to the normal calculation breaking (zero normals).

Solution: Add this edge case to the other corner case checks.

Reviewed By: Sergey

2020-09-24 18:08:45 +02:00

17 KiB

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