Hi Keijiro,

it is a very cool test, that's why I grab as soon as I see it, but when I click the generate button on the AIShader, it has error in the console:

NullReferenceException: Object reference not set to an instance of an object
AIShader.AIShaderImporterEditor.Regenerate () (at Assets/Editor/AIShaderImporterEditor.cs:55)
_cached.stringValue = response.choices[0].message.content;

Maybe I missed some setting? I have already pasted my chatgpt api key, where it should to be.

Best regards
Weimmer