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Fix T47170: Sculpt w/ constructive modifier crash 

Regression in 4d33c37c9

Only copy normal arrays from sculpt to the DerivedMesh when the mesh is deformed.

Constructive modifiers calculate their own normals.
This commit is contained in:
Campbell Barton 2016-01-14 10:04:24 +11:00
parent 30971199ac
commit 3e0f117ef5
Notes: blender-bot 2023-02-14 08:18:19 +01:00 
Referenced by issue #47170, Sculpt mode with Mask modifier enabled result an instant crash
1 changed files with 5 additions and 0 deletions
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5
source/blender/blenkernel/intern/cdderivedmesh.c
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@ -343,6 +343,11 @@ static void cdDM_update_normals_from_pbvh(DerivedMesh *dm)
CDDerivedMesh *cddm = (CDDerivedMesh *) dm;
float (*face_nors)[3];
/* constructive modifiers handle their own normals */
if (!dm->deformedOnly) {
return;
}
face_nors = CustomData_get_layer(&dm->polyData, CD_NORMAL);
BKE_pbvh_update(cddm->pbvh, PBVH_UpdateNormals, face_nors);