[Bf-blender-cvs] [ab3b1aa3bf0] lanpr-under-gp: LineArt: Don't retain line art buffer result after modifier evaluation.

[YimingWu]

Commit: ab3b1aa3bf0e23c85c5577f3d1f12cc014fd014c
Author: YimingWu
Date:   Tue Jul 28 13:44:10 2020 +0800
Branches: lanpr-under-gp
https://developer.blender.org/rBab3b1aa3bf0e23c85c5577f3d1f12cc014fd014c

LineArt: Don't retain line art buffer result after modifier evaluation.

===================================================================

M	source/blender/editors/lineart/lineart_cpu.c

===================================================================

diff --git a/source/blender/editors/lineart/lineart_cpu.c b/source/blender/editors/lineart/lineart_cpu.c
index 31466c58976..e27c149fa54 100644
--- a/source/blender/editors/lineart/lineart_cpu.c
+++ b/source/blender/editors/lineart/lineart_cpu.c
@@ -3982,6 +3982,11 @@ void ED_lineart_post_frame_update_external(bContext *C, Scene *scene, Depsgraph
   else if (ED_lineart_modifier_sync_flag_check(LRT_SYNC_FRESH)) {
     /* At this stage GP should have all the data. We clear the flag */
     ED_lineart_modifier_sync_flag_set(LRT_SYNC_IDLE, false);
+    /* Due to using GPencil modifiers, and the scene is updated each time some value is changed, we
+     * really don't need to keep the buffer any longer. If in the future we want fast refresh on
+     * parameter changes (e.g. thickness or picking different result in an already validated
+     * buffer), remove this call below. */
+    ED_lineart_destroy_render_data_external();
   }
 }