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clutter: LEQUAL depth_testing on ClutterDeformEffect

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Moving an actor with a ClutterDeformEffect applied flickers because
the depth_testing, setting the depth testing test function to
COGL_DEPTH_TEST_FUNCTION_LEQUAL fixes the problem.

Fixes https://gitlab.gnome.org/GNOME/mutter/issues/507
This commit is contained in:
Daniel García Moreno 2019-05-02 10:18:27 +02:00 committed by Daniel García Moreno
parent 24b3467584
commit 706c5a7565
1 changed files with 1 additions and 0 deletions
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clutter/clutter/clutter-deform-effect.c
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@ -282,6 +282,7 @@ clutter_deform_effect_paint_target (ClutterOffscreenEffect *effect)
/* enable depth testing */
cogl_depth_state_init (&depth_state);
cogl_depth_state_set_test_enabled (&depth_state, TRUE);
cogl_depth_state_set_test_function (&depth_state, COGL_DEPTH_TEST_FUNCTION_LEQUAL);
cogl_pipeline_set_depth_state (pipeline, &depth_state, NULL);
/* enable backface culling if we have a back material */