[Bf-blender-cvs] [c8467ccc8df] blender2.8: Fix T58310: Crash when removing multires modifier from sculpt object
Sergey Sharybin
noreply at git.blender.org
Thu Dec 6 15:22:27 CET 2018
Commit: c8467ccc8df3a2d7fc161d227517361647ba83fc
Author: Sergey Sharybin
Date: Thu Dec 6 15:20:16 2018 +0100
Branches: blender2.8
https://developer.blender.org/rBc8467ccc8df3a2d7fc161d227517361647ba83fc
Fix T58310: Crash when removing multires modifier from sculpt object
===================================================================
M source/blender/blenkernel/intern/multires_reshape.c
M source/blender/blenkernel/intern/object.c
===================================================================
diff --git a/source/blender/blenkernel/intern/multires_reshape.c b/source/blender/blenkernel/intern/multires_reshape.c
index 72be2617798..af3219ca06c 100644
--- a/source/blender/blenkernel/intern/multires_reshape.c
+++ b/source/blender/blenkernel/intern/multires_reshape.c
@@ -1163,6 +1163,11 @@ bool multiresModifier_reshapeFromCCG(
return false;
}
MDisps *mdisps = CustomData_get_layer(&coarse_mesh->ldata, CD_MDISPS);
+ if (mdisps == NULL) {
+ /* Multires displacement has been removed before current changes were
+ * applies to all the levels. */
+ return false;
+ }
GridPaintMask *grid_paint_mask =
CustomData_get_layer(&coarse_mesh->ldata, CD_GRID_PAINT_MASK);
Subdiv *subdiv = subdiv_ccg->subdiv;
diff --git a/source/blender/blenkernel/intern/object.c b/source/blender/blenkernel/intern/object.c
index 3e2e890f542..694dae77bcd 100644
--- a/source/blender/blenkernel/intern/object.c
+++ b/source/blender/blenkernel/intern/object.c
@@ -425,6 +425,9 @@ static void object_update_from_subsurf_ccg(Object *object)
Mesh *mesh_cow = object->runtime.mesh_orig;
copy_ccg_data(mesh_cow, mesh_orig, CD_MDISPS);
copy_ccg_data(mesh_cow, mesh_orig, CD_GRID_PAINT_MASK);
+ /* Everything is now up-to-date. */
+ subdiv_ccg->dirty.coords = false;
+ subdiv_ccg->dirty.hidden = false;
}
/* free data derived from mesh, called when mesh changes or is freed */
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