Texture Painting: Mesh symmetry ignores hidden state of paint mask #90270

New Issue

Simon Thommes · 2021-07-28T18:50:02+02:00

Simon Thommes commented

2021-07-28 18:50:02 +02:00

System Information
Operating system: Linux-5.11.0-7614-generic-x86_64-with-glibc2.32 64 Bits
Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.73.01

Blender Version
Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-07-28 08:16, hash: 91dd1a1ba3
Worked: (newest version of Blender that worked as expected)

Short description of error
It is possible to paint on hidden geometry when mesh symmetry is used.
texture_paint_hidden_geo.mp4

Exact steps for others to reproduce the error
Use sample file:
texture_paint_hidden_geo.blend

Or:

Create symmetric geometry
add image texture to its material
go into image texture paint mode
enable mesh symmetry
enable paint mask
hide half of the mesh
select other half of the mesh
paint on hidden half of the mesh

**System Information** Operating system: Linux-5.11.0-7614-generic-x86_64-with-glibc2.32 64 Bits Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.73.01 **Blender Version** Broken: version: 3.0.0 Alpha, branch: master, commit date: 2021-07-28 08:16, hash: `91dd1a1ba3` Worked: (newest version of Blender that worked as expected) **Short description of error** It is possible to paint on hidden geometry when mesh symmetry is used. [texture_paint_hidden_geo.mp4](https://archive.blender.org/developer/F10243337/texture_paint_hidden_geo.mp4) **Exact steps for others to reproduce the error** Use sample file: [texture_paint_hidden_geo.blend](https://archive.blender.org/developer/F10243342/texture_paint_hidden_geo.blend) Or: - Create symmetric geometry - add image texture to its material - go into image texture paint mode - enable mesh symmetry - enable paint mask - hide half of the mesh - select other half of the mesh - paint on hidden half of the mesh

Simon Thommes commented

2021-07-28 18:50:02 +02:00

Added subscriber: @SimonThommes

Philipp Oeser commented

2021-07-28 18:53:31 +02:00

Added subscriber: @lichtwerk

Pratik Borhade commented

2021-07-29 05:36:27 +02:00

Added subscriber: @PratikPB2123

Philipp Oeser commented

2021-07-29 17:49:24 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser self-assigned this 2021-07-29 17:49:24 +02:00

Philipp Oeser commented

2021-07-29 17:49:24 +02:00

Can confirm, will check.

Philipp Oeser removed their assignment 2021-10-25 17:19:04 +02:00

Philipp Oeser commented

2021-10-25 17:19:04 +02:00

Unlike e.g. vertexpaint which first checks face selection and then flips all the brush in SCULPT_cache_calc_brushdata_symm and does a check if brush hits afterwards, this is going to be a rather bigger refactor I am afraid.
Texture paint on the other hand flips the view (does not flip the brush) and does the check if a Paintbucket is hit much later.

So while certainly possible, I will step down for now (to not block others that might get to this sooner).

Unlike e.g. vertexpaint which first checks face selection and then flips all the brush in `SCULPT_cache_calc_brushdata_symm` and does a check if brush hits afterwards, this is going to be a rather bigger refactor I am afraid. Texture paint on the other hand flips the view (does not flip the brush) and does the check if a Paintbucket is hit much later. So while certainly possible, I will step down for now (to not block others that might get to this sooner).

Julien Kaspar commented

2022-05-10 14:13:39 +02:00

Closed as duplicate of #97816

Julien Kaspar closed this issue

2022-05-10 14:13:39 +02:00

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Texture Painting: Mesh symmetry ignores hidden state of paint mask #90270