[Bf-blender-cvs] [256da1c4b97] master: LineArt: Fix transparenct mask in cutting function.

[YimingWu]

Commit: 256da1c4b97224bc93b4d685896fabc9399639c5
Author: YimingWu
Date:   Wed Mar 17 17:55:39 2021 +0800
Branches: master
https://developer.blender.org/rB256da1c4b97224bc93b4d685896fabc9399639c5

LineArt: Fix transparenct mask in cutting function.

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

M	source/blender/gpencil_modifiers/intern/lineart/lineart_cpu.c

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

diff --git a/source/blender/gpencil_modifiers/intern/lineart/lineart_cpu.c b/source/blender/gpencil_modifiers/intern/lineart/lineart_cpu.c
index 31cffad5a7e..ca65fc9bd57 100644
--- a/source/blender/gpencil_modifiers/intern/lineart/lineart_cpu.c
+++ b/source/blender/gpencil_modifiers/intern/lineart/lineart_cpu.c
@@ -252,7 +252,9 @@ static void lineart_line_cut(LineartRenderBuffer *rb,
   if (cut_start_before) {
     if (cut_start_before != ns) {
       /* Insert cutting points for when a new cut is needed. */
-      ns->occlusion = cut_start_before->prev ? (irls = cut_start_before->prev)->occlusion : 0;
+      irls = cut_start_before->prev ? cut_start_before->prev : NULL;
+      ns->occlusion = irls ? irls->occlusion : 0;
+      ns->transparency_mask = irls->transparency_mask;
       BLI_insertlinkbefore(&rl->segments, (void *)cut_start_before, (void *)ns);
     }
     /* Otherwise we already found a existing cutting point, no need to insert a new one. */