Commit: da8febb319ff37f20612add7ebc7cc667b81ab4d
Author: Antonioya
Date: Thu Jan 3 10:39:14 2019 +0100
Branches: master
https://developer.blender.org/rBda8febb319ff37f20612add7ebc7cc667b81ab4d
Fix T59527: Segment fault changing layer visibility and onion skin
In some situation when the layer is hidden, the onion skin must be disabled
too, because the material is not available.
===================================================================
M source/blender/draw/engines/gpencil/gpencil_draw_utils.c
===================================================================
diff --git a/source/blender/draw/engines/gpencil/gpencil_draw_utils.c
b/source/blender/draw/engines/gpencil/gpencil_draw_utils.c
index 1275e93744e..fa16a00183e 100644
--- a/source/blender/draw/engines/gpencil/gpencil_draw_utils.c
+++ b/source/blender/draw/engines/gpencil/gpencil_draw_utils.c
@@ -872,6 +872,9 @@ static void gpencil_draw_onion_strokes(
for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
MaterialGPencilStyle *gp_style =
BKE_material_gpencil_settings_get(ob, gps->mat_nr + 1);
+ if (gp_style == NULL) {
+ continue;
+ }
copy_v4_v4(gps->runtime.tmp_stroke_rgba, gp_style->stroke_rgba);
copy_v4_v4(gps->runtime.tmp_fill_rgba, gp_style->fill_rgba);
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