Fix T62715: Grease Pencil Apply Armature Modifier Issue

@sergey wrote: "The reason it was failing is because md points to an original armature, which doesn't have runtime data needed for deformation. That data is to come from evaluated armature."

Thanks to @sergey for his help.

1 files changed, 5 insertions, 3 deletions

diff --git a/source/blender/gpencil_modifiers/intern/MOD_gpencilarmature.c b/source/blender/gpencil_modifiers/intern/MOD_gpencilarmature.c
index 11e648e355d..f2e387c0374 100644
--- a/source/blender/gpencil_modifiers/intern/MOD_gpencilarmature.c
+++ b/source/blender/gpencil_modifiers/intern/MOD_gpencilarmature.c
@@ -119,9 +119,11 @@ static void bakeModifier(
         Main *bmain, Depsgraph *depsgraph,
         GpencilModifierData *md, Object *ob)
 {
-	ArmatureGpencilModifierData *mmd = (ArmatureGpencilModifierData *)md;
 	Scene *scene = DEG_get_evaluated_scene(depsgraph);
-	bGPdata *gpd = ob->data;
+	Object *object_eval = DEG_get_evaluated_object(depsgraph, ob);
+	ArmatureGpencilModifierData *mmd = (ArmatureGpencilModifierData *)md;
+	GpencilModifierData *md_eval = BKE_gpencil_modifiers_findByName(object_eval, md->name);
+	bGPdata *gpd = (bGPdata *)ob->data;
 	int oldframe = (int)DEG_get_ctime(depsgraph);
 
 	if (mmd->object == NULL)
@@ -137,7 +139,7 @@ static void bakeModifier(
 
 			/* compute armature effects on this frame */
 			for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
-				deformStroke(md, depsgraph, ob, gpl, gps);
+				deformStroke(md_eval, depsgraph, object_eval, gpl, gps);
 			}
 		}
 	}