Cannot sculpt under masked geometry 2.92 #86744

New Issue

Hunan Bean · 2021-03-19T17:38:59+01:00

Hunan Bean commented

2021-03-19 17:38:59 +01:00

System Information
Operating system: windows 10
Graphics card: nvidia 1050ti

Blender Version
Broken: 2.92.0, also 5ec6c8d267

Worked: (optional)
2.83.12lts

Short description of error
Last report on the same issue #80980 (Cannot sculpt behind Hidden geometry)
Cannot sculpt under maked geometry. I reported this bug in a previous version and it was fixed. the bug is now back.

Exact steps for others to reproduce the error

Add a UV sphere.
Assign some vertices to a vertex group, "del".
Add mask modifier, mode = vertex group, select "del", check "invert"
Go to sculpt mode, notice the vertices highlighted under the brush or the geometry modified while sculpting. In 2.83.12, they're on the back side of the hole. In 3.0, they're part of the "del" group.

**System Information** Operating system: windows 10 Graphics card: nvidia 1050ti **Blender Version** Broken: 2.92.0, also 5ec6c8d267 Worked: (optional) 2.83.12lts **Short description of error** Last report on the same issue #80980 (Cannot sculpt behind Hidden geometry) Cannot sculpt under maked geometry. I reported this bug in a previous version and it was fixed. the bug is now back. |![image.png](https://archive.blender.org/developer/F10202228/image.png) |![image.png](https://archive.blender.org/developer/F10202232/image.png)| | -- | -- | **Exact steps for others to reproduce the error** - Add a UV sphere. - Assign some vertices to a vertex group, "del". - Add mask modifier, mode = vertex group, select "del", check "invert" - Go to sculpt mode, notice the vertices highlighted under the brush or the geometry modified while sculpting. In 2.83.12, they're on the back side of the hole. In 3.0, they're part of the "del" group. ![image.png](https://archive.blender.org/developer/F10202225/image.png)

Hunan Bean commented

2021-03-19 17:38:59 +01:00

Added subscriber: @Hunanbean

Germano Cavalcante commented

2021-03-22 20:12:35 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-03-22 20:12:35 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Germano Cavalcante commented

2021-03-22 20:12:35 +01:00

The steps to reproduce the problem are confusing, I cannot understand.
Could you attach a simple file showing the problem?

The steps to reproduce the problem are confusing, I cannot understand. Could you attach a simple file showing the problem?

Hunan Bean commented

2021-03-27 17:34:01 +01:00

I was unable to respond directly through email. I will attempt to upload an example file here. Within this file, it can be seen that there is some geometry masked by a modifier. The problem is when trying to sculpt on the geometry that is shown, which is under the masked geometry. The file includes a generic model from the MakeHuman project and may be considered NSFW. Thank you, and apologies for the delay in response.PossibleBugWithMaskSculpt.blend

I was unable to respond directly through email. I will attempt to upload an example file here. Within this file, it can be seen that there is some geometry masked by a modifier. The problem is when trying to sculpt on the geometry that is shown, which is under the masked geometry. The file includes a generic model from the MakeHuman project and may be considered NSFW. Thank you, and apologies for the delay in response.[PossibleBugWithMaskSculpt.blend](https://archive.blender.org/developer/F9911829/PossibleBugWithMaskSculpt.blend)

Ankit Meel commented

2021-04-07 12:17:16 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2021-04-07 12:17:16 +02:00

How are you checking the effect of sculpting ? The model after sculpting and disabling the modifier:

The area in the "Delete" vertex group:

Checked in 15670ebb95 as well as 2.92.0

How are you checking the effect of sculpting ? The model after sculpting and disabling the modifier: ![image.png](https://archive.blender.org/developer/F9922684/image.png) The area in the "Delete" vertex group: ![image.png](https://archive.blender.org/developer/F9922681/image.png) Checked in 15670ebb95 as well as 2.92.0

Hunan Bean commented

2021-04-16 11:08:15 +02:00

For example, when i attempt to sculpt with the mask hiding the geometry that is Not body, the vertices the sculpt brush registers on that i can change correspond to the mask, which is invisible, and not to the geometry i can see. So, if i try to scuplt on the chest, it will not 'snap' to vertices on the chest, it will snap to the hidden vertices of either the hair guide that hangs over the chest, or to the Tights-Helper. The vertices the brush registers are the hidden mask and not the visible geometry. So, when the brush marker lights up a vertex, it is a vertex that is not supposed to register because it is not even visible. trying to move over a vertex that is on the visiblebody does not change color because as far as the brush is concerned it is trying to sculpt on the invisible geometry that is masked. Ofcourse, if i make the brush big enough and strong enough it will affect the unmasked geometry, but this is not proper function, in my understanding. When geometry is masked, it should not be in the way, and the brushes should not be landing on its vertices instead of the visible vertices.

Thank you

Notice how the brushes selected vertex is floating and not the vertex of the visible geometry. It is floating becuase the brush has landed on a vertex of the hidden/masked geometry

For example, when i attempt to sculpt with the mask hiding the geometry that is Not body, the vertices the sculpt brush registers on that i can change correspond to the mask, which is invisible, and not to the geometry i can see. So, if i try to scuplt on the chest, it will not 'snap' to vertices on the chest, it will snap to the hidden vertices of either the hair guide that hangs over the chest, or to the Tights-Helper. The vertices the brush registers are the hidden mask and not the visible geometry. So, when the brush marker lights up a vertex, it is a vertex that is not supposed to register because it is not even visible. trying to move over a vertex that is on the visiblebody does not change color because as far as the brush is concerned it is trying to sculpt on the invisible geometry that is masked. Ofcourse, if i make the brush big enough and strong enough it will affect the unmasked geometry, but this is not proper function, in my understanding. When geometry is masked, it should not be in the way, and the brushes should not be landing on its vertices instead of the visible vertices. Thank you Notice how the brushes selected vertex is floating and not the vertex of the visible geometry. It is floating becuase the brush has landed on a vertex of the hidden/masked geometry ![ScreenShot35.jpg](https://archive.blender.org/developer/F9935721/ScreenShot35.jpg)

Germano Cavalcante commented

2021-05-03 17:27:42 +02:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Ankit Meel commented

2021-06-25 16:52:03 +02:00

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

Philipp Oeser removed the

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Cannot sculpt under masked geometry 2.92 #86744