Maniphest T100172

Drawing bug, Display color of the new point cloud type propagate & corrupt display color of other objects
Closed, DuplicateBUG
Actions

Assigned To
None
Authored By
Dorian (BD3D)
Aug 3 2022, 3:33 PM
Tags
  • BF Blender
  • Nodes & Physics
  • Geometry Nodes
  • EEVEE & Viewport
Subscribers
Dorian (BD3D)
Germano Cavalcante (mano-wii)
Hans Goudey (HooglyBoogly)
Iliya Katueshenock (Moder)
Richard Antalik (ISS)

Description

System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.59

Blender Version
Broken: version: 3.3.0 Beta, branch: master, commit date: 2022-07-29 15:54, hash: rBcfd16c04f831
Worked: (newest version of Blender that worked as expected)

Short description of error
I have this bug quite often when using the point cloud type, the object color is highly un-stable, and in this case, corrupt other objects color property drawing code somehow
in this case i am scattering a point cloud object, however, this bug also happens with single points

See gif

Exact steps for others to reproduce the error

  • Open the simplified .blend file obj_color_affected_by_pointclouds__bug.blend
  • Decrease the number of point cloud instances througt the geometry node tree

obj_color_affected_by_pointclouds__bug.blend279 KBDownload

Original File
In this .blend file, just move text to see the bug

bug.blend108 MBDownload

Related Objects

Event Timeline

Dorian (BD3D) created this task.Aug 3 2022, 3:33 PM
Dorian (BD3D) updated the task description.Aug 3 2022, 3:38 PM
Iliya Katueshenock (Moder) added a subscriber: Iliya Katueshenock (Moder).EditedAug 3 2022, 3:51 PM

It seems that it is the instances who change the colors of objects created later with their index. And when editing, the number of instances changes, shifting the grain of the color seed

Richard Antalik (ISS) changed the task status from Needs Triage to Needs Information from User.Aug 3 2022, 10:12 PM
Richard Antalik (ISS) added a subscriber: Richard Antalik (ISS).

This seems to be a bug, but node tree causing it is quite complex. Is it possible to simplify it?

Dorian (BD3D) added a comment.Aug 4 2022, 2:30 PM

Okay, i can simplify the node tree, sure
I did think the node tree was unrelated to the issue

Dorian (BD3D) updated the task description.Aug 4 2022, 2:52 PM
Dorian (BD3D) added a comment.EditedAug 4 2022, 2:55 PM

Ok uploaded a much more simplified file and bug description
I forgot to precise that the density of the distribution has an impact on the bug,
the number of instances displayed on screen has an influence on the issue, not enough instances == no bug

Germano Cavalcante (mano-wii) changed the task status from Needs Information from User to Confirmed.Aug 4 2022, 3:37 PM
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Bug".
Germano Cavalcante (mano-wii) added projects: Nodes & Physics, Geometry Nodes, EEVEE & Viewport.
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).

I was able to simplify the file even further.
So it is clear that the problem is in the number of Point Cloud instances.


obj_color_affected_by_pointclouds__bug.blend279 KBDownload

I will edit the description...

Hans Goudey (HooglyBoogly) added a subscriber: Hans Goudey (HooglyBoogly).Aug 4 2022, 3:39 PM

Looks very similar to T93245

Iliya Katueshenock (Moder) added a comment.Aug 4 2022, 3:40 PM

As I said, this is similar to the standard behavior, in which the color depends on the object number. If there are many instances, then it shifts the next object in the list

Germano Cavalcante (mano-wii) updated the task description.Aug 4 2022, 3:40 PM
Hans Goudey (HooglyBoogly) closed this task as a duplicate of T93245: Creating over 2047 instances overrides object color viewport display.Aug 4 2022, 3:59 PM