Weight Paint: relax heuristic to determine when final mesh can be used.temp-angavrilov

Checking for polygon and loop data to be referenced is too fragile
re changes in geometry node implementations. Instead, compare counts
of polygons, face corners and vertices: topology changes are unlikely
to keep all three unchanged.

Ref D15501

1 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/paint.cc b/source/blender/blenkernel/intern/paint.cc
index 934cfb3cc46..98e026831c5 100644
--- a/source/blender/blenkernel/intern/paint.cc
+++ b/source/blender/blenkernel/intern/paint.cc
@@ -1785,8 +1785,8 @@ static void sculpt_update_object(
       /* If the fully evaluated mesh has the same topology as the deform-only version, use it.
        * This matters because crazyspace evaluation is very restrictive and excludes even modifiers
        * that simply recompute vertex weights (which can even include Geometry Nodes). */
-      if (me_eval_deform->polys().data() == me_eval->polys().data() &&
-          me_eval_deform->loops().data() == me_eval->loops().data() &&
+      if (me_eval_deform->totpoly == me_eval->totpoly &&
+          me_eval_deform->totloop == me_eval->totloop &&
           me_eval_deform->totvert == me_eval->totvert) {
         BKE_sculptsession_free_deformMats(ss);