Materials export blank if unconnected Principled BSDF node is anywhere in a "Background" material during gltf 2.0 export #78926

New Issue

Casey · 2020-07-14T21:13:02+02:00

Casey commented

2020-07-14 21:13:02 +02:00

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67

Blender Version
Broken: version: 2.83.2, branch: master, commit date: 2020-07-09 05:50, hash: blender/blender@239fbf7d93
Worked: none?

Short description of error
If there's a Principled BSDF shader anywhere in the material in node editor, even if it's unconnected to anything, and have a Background node connected to surface it will ignore any connected images or colors and export blank white every time.

Exact steps for others to reproduce the error
Make a material, unconnect the Principled BSDF node from material output, change surface type of the material to "Background", change the color or connect a image texture in node editor. File > Export > gltf 2.0, export with materials selected. Import the .glb into another program or back into blender, the texture wasn't exported and the color of the Background node is ignored and will appear pure white.

**System Information** Operating system: Windows-10-10.0.18362-SP0 64 Bits Graphics card: GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 451.67 **Blender Version** Broken: version: 2.83.2, branch: master, commit date: 2020-07-09 05:50, hash: `blender/blender@239fbf7d93` Worked: none? **Short description of error** If there's a Principled BSDF shader anywhere in the material in node editor, even if it's unconnected to anything, and have a Background node connected to surface it will ignore any connected images or colors and export blank white every time. **Exact steps for others to reproduce the error** Make a material, unconnect the Principled BSDF node from material output, change surface type of the material to "Background", change the color or connect a image texture in node editor. File > Export > gltf 2.0, export with materials selected. Import the .glb into another program or back into blender, the texture wasn't exported and the color of the Background node is ignored and will appear pure white.

Casey commented

2020-07-14 21:13:03 +02:00

Added subscriber: @Casey-3

Casey changed title from ~~Materials export blank if unconnected Principled BSDF node is anywhere in the material during gltf 2.0 export~~ to Materials export blank if unconnected Principled BSDF node is anywhere in a "Background" material during gltf 2.0 export

2020-07-14 21:13:22 +02:00

Julien Duroure commented

2020-09-17 21:55:27 +02:00

Added subscriber: @JulienDuroure

Julien Duroure commented

2020-09-17 21:55:27 +02:00

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

Julien Duroure commented

2020-09-17 21:55:27 +02:00

Thanks for this report.
I just committed a first work around about it on d7d2bad09f
Now you can mute your principled shader, it will be ignore.

Next step and discussion will take place on upstream repository : https://github.com/KhronosGroup/glTF-Blender-IO/issues/1213

Thanks for this report. I just committed a first work around about it on d7d2bad09f8c04d3e86081481fc700ae3c834800 Now you can mute your principled shader, it will be ignore. Next step and discussion will take place on upstream repository : https://github.com/KhronosGroup/glTF-Blender-IO/issues/1213

Julien Duroure commented

2020-12-01 15:11:26 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Julien Duroure closed this issue

2020-12-01 15:11:26 +01:00

Julien Duroure self-assigned this 2020-12-01 15:11:26 +01:00

Julien Duroure commented

2020-12-01 15:11:26 +01:00

Fixed by 5088c8d9d7

Fixed by 5088c8d9d735

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