Naming Vertex Color attribute as "snout, Snout" causes shader error. #83625

Closed
opened 2020-12-10 12:41:48 +01:00 by Teemu · 8 comments

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71

Blender Version
Broken: version: 2.90.1, branch: master, commit date: 2020-09-23 06:43, hash: 3e85bb34d0
Also seems to be broken in 2.91.0
Worked:

Short description of error
Naming vertex color attribute to word "Snout" or with a little variance of capital letters causes shader not to compile. If the attribute is named in full capitals such as "SNOUT" the shader can compile.
image.png

vertexColorAttributeNamingIssue.blend
Exact steps for others to reproduce the error

  1. Use the default cube.
  2. Create a new vertex color attribute for it.
  3. Add some colors through vertex painting.
  4. Name the Attribute as "Snout" or snout.
  5. Create a material (use emissive) and plug the created vertex color attribute into the color input.
  6. Shader won't compile
  7. Rename vertex color "Snout" attribute to something else.
  8. Update material attribute input name to match the renamed one.
  9. Shader compiles again.
**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 456.71 **Blender Version** Broken: version: 2.90.1, branch: master, commit date: 2020-09-23 06:43, hash: `3e85bb34d0` Also seems to be broken in 2.91.0 Worked: **Short description of error** Naming vertex color attribute to word "Snout" or with a little variance of capital letters causes shader not to compile. If the attribute is named in full capitals such as "SNOUT" the shader can compile. ![image.png](https://archive.blender.org/developer/F9500027/image.png) [vertexColorAttributeNamingIssue.blend](https://archive.blender.org/developer/F9500030/vertexColorAttributeNamingIssue.blend) **Exact steps for others to reproduce the error** 1. Use the default cube. 2. Create a new vertex color attribute for it. 3. Add some colors through vertex painting. 4. Name the Attribute as "Snout" or snout. 5. Create a material (use emissive) and plug the created vertex color attribute into the color input. 6. Shader won't compile 7. Rename vertex color "Snout" attribute to something else. 8. Update material attribute input name to match the renamed one. 9. Shader compiles again.
Author

Added subscriber: @TMug

Added subscriber: @TMug
Teemu changed title from Naming Vertex Color attribute as "snout, Snout" or causes shader error. to Naming Vertex Color attribute as "snout, Snout" causes shader error. 2020-12-10 12:42:10 +01:00

Added subscriber: @rjg

Added subscriber: @rjg

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

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

This seems to cause an invalid name to be generated internally:

ERROR (gpu.shader): MAMaterial VertShader:
      |
  114 | DEFINE_ATTR(vec4, aowS4__haaaa);
      |
      | Error:  C7528: OpenGL reserves names containing '__'
This seems to cause an invalid name to be generated internally: ``` ERROR (gpu.shader): MAMaterial VertShader: | 114 | DEFINE_ATTR(vec4, aowS4__haaaa); | | Error: C7528: OpenGL reserves names containing '__' ```

This issue was referenced by 2db277092d

This issue was referenced by 2db277092d8322abc3851ba18368ac370e2dd0dd

This issue was referenced by 6c777ed76b

This issue was referenced by 6c777ed76b3d4342d50f6f87f24f758473816a60

This issue was referenced by ffb6648a97

This issue was referenced by ffb6648a970e72a749c7de3c5645450ba7d8d858
Member

Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
Jeroen Bakker self-assigned this 2020-12-18 10:00:12 +01:00
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Reference: blender/blender#83625
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