Random symmetry brush strokes in Weight paint mode #54060

New Issue

Daniel F. R. Gordillo · 2018-02-12T20:27:39+01:00

2018-02-12 20:27:39 +01:00

System Information
Linux Mint Debian Edition on AMD Phenom II x6 1090T, NVidia 460 GTX

Blender Version
Broken: 2.79a RC

Short description of error
Weight paint symmetry makes random stuff See video

Exact steps for others to reproduce the error
Just add a UV Sphere. Subdivide it several times and try to paint weights on it with and without the symmetry activated... random duplicated brush strokes will pop up.

**System Information** Linux Mint Debian Edition on AMD Phenom II x6 1090T, NVidia 460 GTX **Blender Version** Broken: 2.79a RC **Short description of error** Weight paint symmetry makes random stuff [See video ](https://youtu.be/Nst_VVSgP7w) **Exact steps for others to reproduce the error** Just add a UV Sphere. Subdivide it several times and try to paint weights on it with and without the symmetry activated... random duplicated brush strokes will pop up.

Daniel F. R. Gordillo commented

2018-02-12 20:27:39 +01:00

Added subscriber: @DGordillo

ronan ducluzeau commented

2018-02-13 18:18:06 +01:00

Added subscriber: @zeauro

ronan ducluzeau commented

2018-02-13 18:18:06 +01:00

It does not seem to be random.

"Limit Selection to Visible" icon is disabled.
https://docs.blender.org/manual/en/dev/_images/modeling_meshes_selecting_introduction_mode-buttons.png

You are painting through the mesh, faces facing the view and faces at opposite side of the object.
So, with X-mirror option enabled, you are seeing two areas painted.
One just under pointer corresponding to Front faces and the other one corresponding to back side faces under pointer but mirrored on Front side.

Painting through the mesh may be interesting. In master, 2 new options (Front Faces and 2D Falloff) are present and replacing "Limit Selection to Visible" option.
But this change will not be implemented in 2.79a. It will be in 2.8.
It is just a weird behaviour due to the combinaison of 2 features (painting through and symmetry) .
Each one is useful activated individually. But it is not recommanded to activate both at same time.

Feel free to complete the report if you think I missed something.
Precise clearly what steps would correspond to a bug.
Without a reply, report will be closed after a week.

It does not seem to be random. "Limit Selection to Visible" icon is disabled. https://docs.blender.org/manual/en/dev/_images/modeling_meshes_selecting_introduction_mode-buttons.png You are painting through the mesh, faces facing the view and faces at opposite side of the object. So, with X-mirror option enabled, you are seeing two areas painted. One just under pointer corresponding to Front faces and the other one corresponding to back side faces under pointer but mirrored on Front side. Painting through the mesh may be interesting. In master, 2 new options (Front Faces and 2D Falloff) are present and replacing "Limit Selection to Visible" option. But this change will not be implemented in 2.79a. It will be in 2.8. It is just a weird behaviour due to the combinaison of 2 features (painting through and symmetry) . Each one is useful activated individually. But it is not recommanded to activate both at same time. Feel free to complete the report if you think I missed something. Precise clearly what steps would correspond to a bug. Without a reply, report will be closed after a week.

Daniel F. R. Gordillo commented

2018-02-14 14:19:46 +01:00

Changed status from 'Open' to: 'Resolved'

Daniel F. R. Gordillo closed this issue

2018-02-14 14:19:46 +01:00

Daniel F. R. Gordillo self-assigned this 2018-02-14 14:19:46 +01:00

Daniel F. R. Gordillo commented

2018-02-14 14:19:46 +01:00

Damn! so that was it! Now I feel dumb as hell

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Random symmetry brush strokes in Weight paint mode #54060