System Information
Operating system: Windows 10
Graphics card: Nvidia Geforce GTX 1050 Ti
Blender Version
Broken: 2.90
Worked: 2.83
Short description of error
"Compare UVs" option of Tris to Quads does not stop UV map from breaking after applying it.
Exact steps for others to reproduce the error
Press Space, then select Tris to Quads, check "Compare UVs" and you'll see that UV Map will break.
Blend file is attached.
| rB Blender | |||
| rB394a28771429 Fix T80520: Tris to Quads ignores UV delimit option | |||
| rB60fbed3dba9f Fix T80520: Tris to Quads ignores UV delimit option | |||
| rBf5b6b825980f Fix T80520: Tris to Quads ignores UV delimit option | |||
I can confirm.
It seems that there is an error in the calculation of the final customdata offset.
This deserves to be investigated.
diff --git a/source/blender/bmesh/operators/bmo_join_triangles.c b/source/blender/bmesh/operators/bmo_join_triangles.c index efb8b810581..dceb2c58625 100644 --- a/source/blender/bmesh/operators/bmo_join_triangles.c +++ b/source/blender/bmesh/operators/bmo_join_triangles.c @@ -166,7 +166,7 @@ static bool bm_edge_delimit_cdata(CustomData *ldata, r_delim_cd->cd_type = type; r_delim_cd->cd_size = CustomData_sizeof(r_delim_cd->cd_type); r_delim_cd->cd_offset = CustomData_get_n_offset(ldata, type, 0); - r_delim_cd->cd_offset_end = r_delim_cd->cd_size * layer_len; + r_delim_cd->cd_offset_end = r_delim_cd->cd_offset + r_delim_cd->cd_size * layer_len; return (r_delim_cd->cd_offset != -1); }