The color attribute from Particle Instance Modifier is incorrect #112335

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opened 2023-09-13 16:42:06 +02:00 by arius-cr · 2 comments
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System Information
Operating system: Windows-10-10.0.19041-SP0
Graphics card: NVIDIA GeForce RTX 4070 Ti/PCIe/SSE2 (4.5.0 NVIDIA 535.98)

Blender Version
Broken: 3.6.0, 3.6.1, 3.6.2 (caused by 16fbadde36)
Worked: 3.4.0, 3.5.0, 3.5.1 (not tested older than 3.4.0)

Short description of error
The color value of the Index layer always 0.
The color value of the Value layer always the same.

Exact steps for others to reproduce the error

  1. Add a Grid mesh, add a Particle System to it.
  2. Add a Cube mesh, add a Particle Instance Modifer to it, select the Grid in the Object field.
  3. Add two color attributes, with Face Corner and Byte Color settings, and name "Index" and "Random", to Cube.
  4. In Particle Instance Modifier, select "Index" layer in the Index field, select "Random" layer in the Value field.
  5. Open Spreadsheet, and select the Face Corner.
  6. the color value in the Index column always 0, and the color value in the Random column always the same.
**System Information** Operating system: Windows-10-10.0.19041-SP0 Graphics card: NVIDIA GeForce RTX 4070 Ti/PCIe/SSE2 (4.5.0 NVIDIA 535.98) **Blender Version** Broken: 3.6.0, 3.6.1, 3.6.2 (caused by 16fbadde36) Worked: 3.4.0, 3.5.0, 3.5.1 (not tested older than 3.4.0) **Short description of error** The color value of the Index layer always 0. The color value of the Value layer always the same. **Exact steps for others to reproduce the error** 1. Add a Grid mesh, add a Particle System to it. 2. Add a Cube mesh, add a Particle Instance Modifer to it, select the Grid in the Object field. 3. Add two color attributes, with Face Corner and Byte Color settings, and name "Index" and "Random", to Cube. 4. In Particle Instance Modifier, select "Index" layer in the Index field, select "Random" layer in the Value field. 5. Open Spreadsheet, and select the Face Corner. 6. the color value in the Index column always 0, and the color value in the Random column always the same.
arius-cr added the
Severity
Normal
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Report
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Needs Triage
labels 2023-09-13 16:42:07 +02:00
Iliya Katushenock added the
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Modeling
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Modifiers
labels 2023-09-13 16:42:49 +02:00

I can confirm the problem.
It is a regression introduced sometime between 175b1b449ec2 (Mar 6) and 3fe7e1f03b1e (Mar 23)
Will bisect...

I can confirm the problem. It is a regression introduced sometime between `175b1b449ec2` (Mar 6) and `3fe7e1f03b1e` (Mar 23) Will bisect...

The problem was caused by 16fbadde36
@HooglyBoogly, can you check?

The problem was caused by 16fbadde36 @HooglyBoogly, can you check?
Blender Bot added
Status
Resolved
and removed
Status
Confirmed
labels 2023-09-14 10:27:09 +02:00
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Reference: blender/blender#112335
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