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

New Issue

Teemu · 2020-12-10T12:41:48+01:00

Teemu commented

2020-12-10 12:41:48 +01:00

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.

vertexColorAttributeNamingIssue.blend
Exact steps for others to reproduce the error

Use the default cube.
Create a new vertex color attribute for it.
Add some colors through vertex painting.
Name the Attribute as "Snout" or snout.
Create a material (use emissive) and plug the created vertex color attribute into the color input.
Shader won't compile
Rename vertex color "Snout" attribute to something else.
Update material attribute input name to match the renamed one.
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.

Teemu commented

2020-12-10 12:41:48 +01:00

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

Robert Guetzkow commented

2020-12-10 16:22:31 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2020-12-10 16:22:31 +01:00

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

Robert Guetzkow commented

2020-12-10 16:22:31 +01:00

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 '__' ```

blender-admin commented

2020-12-18 09:56:28 +01:00

This issue was referenced by 2db277092d

This issue was referenced by 2db277092d8322abc3851ba18368ac370e2dd0dd

blender-admin commented

2020-12-18 09:56:28 +01:00

This issue was referenced by 6c777ed76b

This issue was referenced by 6c777ed76b3d4342d50f6f87f24f758473816a60

blender-admin commented

2020-12-18 09:56:28 +01:00

This issue was referenced by ffb6648a97

This issue was referenced by ffb6648a970e72a749c7de3c5645450ba7d8d858

Jeroen Bakker commented

2020-12-18 10:00:12 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Jeroen Bakker closed this issue

2020-12-18 10:00:12 +01:00

Jeroen Bakker self-assigned this 2020-12-18 10:00:12 +01:00

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