Artifacts when painting in Texture Paint mode #49044

New Issue

Darek Kulawiec · 2016-08-08T10:23:17+02:00

Darek Kulawiec commented

2016-08-08 10:23:17 +02:00

System Information
openSuSe 13.2 64bit
nV GF 8600 GT

Blender Version
Blender 2.77 734e0ac buildbot 05-08-2016 glibc 219 64bit

Short description of error
mode: Texture Paint
I have seen short tutorial on YT https://www.youtube.com/watch?v=hW4yM2mmJaU. When I trying do the same (fill color or paint on object) in texture paint mode, on my texture shows artifacts

Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps

create object - cylinder

 a) shift +E on cylinder's edge
 b) subdivide to 2

unvrap
switch to texture paint mode

 a) turn off occlude, cull, normal
 b) change strength brush to 100
 c) change curve brush
 d) brush stroke to line

hand_granade.blend

**System Information** openSuSe 13.2 64bit nV GF 8600 GT **Blender Version** Blender 2.77 734e0ac buildbot 05-08-2016 glibc 219 64bit **Short description of error** mode: Texture Paint I have seen short tutorial on YT https://www.youtube.com/watch?v=hW4yM2mmJaU. When I trying do the same (fill color or paint on object) in texture paint mode, on my texture shows artifacts ![tex_paint_bug.jpg](https://archive.blender.org/developer/F334191/tex_paint_bug.jpg) **Exact steps for others to reproduce the error** Based on a (as simple as possible) attached .blend file with minimum amount of steps 1. create object - cylinder ``` a) shift +E on cylinder's edge b) subdivide to 2 ``` 2. unvrap 3. switch to texture paint mode ``` a) turn off occlude, cull, normal b) change strength brush to 100 c) change curve brush d) brush stroke to line ``` [hand_granade.blend](https://archive.blender.org/developer/F334194/hand_granade.blend)

Darek Kulawiec commented

2016-08-08 10:23:17 +02:00

Changed status to: 'Open'

Darek Kulawiec commented

2016-08-08 10:23:17 +02:00

Added subscriber: @darekk

Alex commented

2016-08-10 10:24:57 +02:00

Added subscriber: @SpectreFirst

Bastien Montagne commented

2016-08-11 12:33:58 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2016-08-11 12:33:58 +02:00

Cannot really reproduce that here… However, there are several points worth noting:

Brush strength is now a 'simple' proportional value, no more a percentage, which means 100 value is not allowed (and old 100 value is same as new 1.0 value).
You may want to increase the bleed setting, especially when working over a subdivided object (which adds another layer of imprecision to mapping computations).
In general, working on too small faces in current paint mode is known to give issues (it 'misses' faces, due to OpenGL technique used to detect painted area currently) - this is to be fixed in one of our 2016 GSoC actually.

Not sure any of those points do explain your issue… but would be worth checking whether increasing bleed, and/or working without subsurf enabled, generate any change?

Cannot really reproduce that here… However, there are several points worth noting: - Brush strength is now a 'simple' proportional value, no more a percentage, which means `100` value is not allowed (and old 100 value is same as new 1.0 value). - You may want to increase the `bleed` setting, especially when working over a subdivided object (which adds another layer of imprecision to mapping computations). - In general, working on too small faces in current paint mode is known to give issues (it 'misses' faces, due to OpenGL technique used to detect painted area currently) - this is to be fixed in one of our 2016 GSoC actually. Not sure any of those points do explain your issue… but would be worth checking whether increasing bleed, and/or working without subsurf enabled, generate any change?

Bastien Montagne commented

2016-08-20 15:00:34 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2016-08-20 15:00:34 +02:00

Bastien Montagne self-assigned this 2016-08-20 15:00:34 +02:00

Bastien Montagne commented

2016-08-20 15:00:34 +02:00

More than a week without reply. Due to the policy of the tracker archiving for until more details are provided.

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Artifacts when painting in Texture Paint mode #49044