System Information
Operating system: windows 7
Graphics card: GTX 1660
Blender Version latest 2.81 and 2.852
I select multiple meshes in the attached porte13.blend file and enter edit mode : crash in most cases
This crash dosen't happen with Blender 2.80
Can confirm.
getting this on open
ERROR (bke.modifier): /blender/source/blender/blenkernel/intern/modifier.c:410 modifier_setError: Enable 'Auto Smooth' option in mesh settings
getting this on entering editmode
BLI_assert failed: /blender/source/blender/gpu/intern/gpu_element.c:197, GPU_indexbuf_set_tri_verts(), at '(elem + 1) * 3 <= builder->max_index_len'
checking...
There is something wrong with the material indices of some meshes.
You can run this script to correct this:
import bpy
for ob in bpy.data.objects:
if ob.data is None or ob.type != 'MESH':
continue
not_valid = ob.data.validate_material_indices()
if not_valid:
print("mat indices not_valid ", ob.name)
else:
print("mat indices valid ", ob.name)output will be [just the bad ones]:
mat indices valid screw_Plate_01.000 mat indices not_valid screw_Plate_01.001 mat indices not_valid screw_Plate_01.003 mat indices not_valid screw_Plate_01.005 mat indices not_valid screw_Plate_01.008 mat indices not_valid screw_Plate_01.009 mat indices valid screw_Plate_01.012 mat indices not_valid screw_Plate_01.013 mat indices not_valid screw_Plate_01.014 mat indices not_valid screw_Plate_01.015
Now the question is: how did we get here?
This might be because of a recent bug blender had about multiple materials...
(if this is the case then you should run that script and you should not any errors/crashes anymore)
If these errors show up again after you have cleaned the file, we would need to know which operations caused this to happen? Any idea?