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Custom color attribute vs. vertex color - difference in color managed render
Confirmed, NormalPublic

Description

System Information
Operating system: Linux-4.15.0-137-generic-x86_64-with-glibc2.23 64 Bits
Graphics card: GeForce 920MX/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 384.130

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-03-19 21:37, hash: rB3494946560c2

Short description of error
There is a mismatch while displaying the vertex color layer and vertex color set as a custom-attribute.

Exact steps for others to reproduce the error

  1. Run the script which sets the vertex color layer (Col) and custom attribute vertex color (GN-Col).
  2. Then change the max input of *Attribute Randomize*, it will update the colors.
  3. In shader nodes switch between two vertex colors: *Col* and *GN-Col*.

Event Timeline

I'm not sure I understand the problem correctly.
What view mode are you using?
If it is the Viewport Shading "Solid" mode, it is expected to the material nodes to have no effect.

Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Mon, Mar 29, 2:24 PM


I believe there is a difference in regards to color management between attributes and vertex colors.
I also believe we have the same difference between Vertex Colors and sculpt vertex colors.

Will confirm for now, would assume @Brecht Van Lommel (brecht) knows about this? [this might very well be intended behavior]

Philipp Oeser (lichtwerk) renamed this task from Custom Attribute does not display correctly to Custom color attribute vs. vertex color - difference in color managed render.Mon, Mar 29, 2:27 PM