Fix T66267: only add DEG cloth collision relations if collisions are

enabled

was detecting unneccessary dependency cycle

Reviewers: sergey, brecht

Maniphest Tasks: T66267

Differential Revision: https://developer.blender.org/D5160

1 files changed, 8 insertions, 6 deletions

diff --git a/source/blender/modifiers/intern/MOD_cloth.c b/source/blender/modifiers/intern/MOD_cloth.c
index 3c4dd9f2c56..1a6d172d2f9 100644
--- a/source/blender/modifiers/intern/MOD_cloth.c
+++ b/source/blender/modifiers/intern/MOD_cloth.c
@@ -125,12 +125,14 @@ static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphConte
 {
   ClothModifierData *clmd = (ClothModifierData *)md;
   if (clmd != NULL) {
-    DEG_add_collision_relations(ctx->node,
-                                ctx->object,
-                                clmd->coll_parms->group,
-                                eModifierType_Collision,
-                                NULL,
-                                "Cloth Collision");
+    if (clmd->coll_parms->flags & CLOTH_COLLSETTINGS_FLAG_ENABLED) {
+      DEG_add_collision_relations(ctx->node,
+                                  ctx->object,
+                                  clmd->coll_parms->group,
+                                  eModifierType_Collision,
+                                  NULL,
+                                  "Cloth Collision");
+    }
     DEG_add_forcefield_relations(
         ctx->node, ctx->object, clmd->sim_parms->effector_weights, true, 0, "Cloth Field");
   }