Maniphest T56497

(Dyntopo) Snake hook sculpt brush slips off and affects the part of the mesh behind
Closed, Resolved
Actions

Assigned To
Pablo Dobarro (pablodp606)
Authored By
Yegor (Yegor)
Aug 22 2018, 1:54 PM
Tags
  • BF Blender
  • Sculpt, Paint & Texture
Subscribers
Bastien Montagne (mont29)
Jason (SPYNeox)
Pablo Dobarro (pablodp606)
TheRedWaxPolice (TheRedWaxPolice)
Yegor (Yegor)

Description

System Information
Debian testing, Nvidia GTX 1080ti

Blender Version
Broken: latest nightly build
Worked: 2.79b

Short description of error
When you draw with the snake hook brush (pinch=1, rake=1), the brush slips off the current extrusion and starts to affect the mesh behind, if it is something behind the brush.

Exact steps for others to reproduce the error

  • Open the attached file
  • Switch to sculpt dyntopo mode, choose the snake hook brush
  • Position camera the way, that you have some part of the mesh behind the spot you are going to extrude of and draw an extrusion

On the attached image i drew an extrusion without releasing the mouse button and got three separate strokes

blender_snakehook_bug.blend3 MBDownload

Revisions and Commits

rB Blender
D5915rB9df9fb332448 Fix T56497: Snake hook sculpt brush slips off and affects the part of the mesh…

Related Objects

Mentioned Here
rB9df9fb332448: Fix T56497: Snake hook sculpt brush slips off and affects the part of the mesh…
rB10001d909905: Mesh Batch Cache: Fix regression with mesh that have poly mat id > mat_len

Event Timeline

Yegor (Yegor) created this task.Aug 22 2018, 1:54 PM
Bastien Montagne (mont29) lowered the priority of this task from 90 to 50.Aug 23 2018, 2:39 PM
Bastien Montagne (mont29) added a project: Sculpt, Paint & Texture.
Bastien Montagne (mont29) added a subscriber: Bastien Montagne (mont29).

Confirmed, also affects 2.8… Not sure whether this is actually a bug, or a limitation of current code though…

Jason (SPYNeox) added a subscriber: Jason (SPYNeox).Aug 19 2019, 12:38 PM

Is this the issue with the Snake Hook slipping instead of holding onto the mesh?

B 2.79 - Snake hook works as expected.

B 2.8 Release - Snake Hook slips and doesn't hold on anymore.

blender-2.81.0-git.10001d909905-windows64 - Snake Hook still has the issue

Yegor (Yegor) added a comment.Aug 19 2019, 12:47 PM
In T56497#755786, @Jason (SPYNeox) wrote:

Is this the issue with the Snake Hook slipping instead of holding onto the mesh?

B 2.79 - Snake hook works as expected.

B 2.8 Release - Snake Hook slips and doesn't hold on anymore.

blender-2.81.0-git.10001d909905-windows64 - Snake Hook still has the issue

Yes

Jason (SPYNeox) added a subscriber: Pablo Dobarro (pablodp606).Aug 19 2019, 12:49 PM

@Pablo Dobarro (pablodp606) This effects your Branch too.

Jason (SPYNeox) added a comment.Aug 19 2019, 12:50 PM
This comment was removed by Jason (SPYNeox).
TheRedWaxPolice (TheRedWaxPolice) added a subscriber: TheRedWaxPolice (TheRedWaxPolice).Sep 27 2019, 3:03 PM

I can confirm this bug. (blender-2.81-c43018cdc01e-windows64)

Pablo Dobarro (pablodp606) added a revision: D5915: Fix T56497: Snake hook sculpt brush slips off and affects the part of the mesh behind.Sep 27 2019, 3:58 PM
Pablo Dobarro (pablodp606) added a comment.Oct 7 2019, 10:06 PM

Fixed in rB9df9fb33244889c37b9bfd5ef938c96f27144fee

Pablo Dobarro (pablodp606) changed the task status from Unknown Status to Resolved.Oct 7 2019, 10:07 PM
Pablo Dobarro (pablodp606) claimed this task.
Pablo Dobarro (pablodp606) added a commit: rB9df9fb332448: Fix T56497: Snake hook sculpt brush slips off and affects the part of the mesh….Oct 7 2019, 10:07 PM