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ClutterStage defines the 8 vertices of a frustum: 4 ----------------------------- 5 | \ / | | \ / | | 0 --------------------- 1 | | | | | | | | | | 3 --------------------- 2 | | / \ | | / \ | 7 ----------------------------- 6 Then, it uses triplets of vertices to create each clipping plane. It only sets up 4 planes (it doesn't clip based on depth), defined by the following vertices: * 0 - 4 - 5 * 1 - 5 - 6 * 2 - 6 - 7 * 0 - 7 - 4 The first 3 triplets are selected using the for-loop. However, the last triplet is different, and is done out of the loop. It could have been made simpler by using the "3 - 7 - 4" triplet. Simplify the current code by using the suggested triplet, calculated inside the for-loop. https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1489 |
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