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Git Commits -> Revision 7fcb6bc
Revision 7fcb6bc by Lukas Stockner (master) July 8, 2020, 00:15 (GMT) |
Fix T78324: Different Sky Texture results between CPU and GPU The problem here was numerical precision: The code calculates the angle between sun and view direction, and the usual acos(dot(a, b)) approach for that has poor numerical performance for almost parallel angles. As a result, the generally tiny difference between floating point computation between CPU and GPU was enough to make the sun vanish at different radii, causing different results. The new version fixes the difference by making the computation much more robust on both platforms. |
Commit Details:
Full Hash: 7fcb6bc59c85beab36dbfcec91d0cfaf5291f029
Parent Commit: afcb41a
Lines Changed: +17, -2