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Participant
May 26, 2025
Question

Error Accessing Embedded Presets - Python API

  • May 26, 2025
  • 2 replies
  • 134 views

Hello guys 🙂

 

I’m hitting this error in my Substance Painter Python exporter:

 
ValueError: For exportList item #0, the preset "resource://starter_assets/glTF PBR Metal Roughness" is undefined

 

I am using Everything (voidtools) to try and locate it, but I can’t find that preset on disk anywhere, I am assuming it is embedded. Do you guys know where it's coming from? Any other preset from the starter-assets folder work fine. How can I access the glTF ones?

 

Any help would be appreciated, thanks 🙂

2 replies

Aqwe39003
Participant
March 9, 2026

Hi! I have found defaultExportPreset url: 

export-preset-generator://gltf
Aqwe39003
Participant
March 5, 2026

I have faced the same issue recently!