bugfix [#23118] Blender freezes when combing hair - OS X path changes related?

- glReadPixels() was running to get the depth on each pixel, this works fine one some cards but was locking up on OSX.
- Replace glReadPixels() call with a single call to view3d_update_depths() right after view3d_validate_backbuf(), so the depths are only read once.
- Unrelated to the changes above, but should improve performance: view3d_validate_backbuf() was being called on every redraw while combing, now only call once when combing starts.

1 files changed, 0 insertions, 1 deletions

diff --git a/source/blender/editors/space_view3d/view3d_intern.h b/source/blender/editors/space_view3d/view3d_intern.h
index b77c68b2735..445a83b4266 100644
--- a/source/blender/editors/space_view3d/view3d_intern.h
+++ b/source/blender/editors/space_view3d/view3d_intern.h
@@ -136,7 +136,6 @@ void add_view3d_after(ListBase *lb, Base *base, int flag);
 
 void circf(float x, float y, float rad);
 void circ(float x, float y, float rad);
-void view3d_update_depths(struct ARegion *ar);
 void view3d_update_depths_rect(struct ARegion *ar, struct ViewDepths *d, struct rcti *rect);
 float view3d_depth_near(struct ViewDepths *d);