Automatically apply random colors to materials?

Soto

Hi.

I need to use the Artistic filter in Clip Studio Paint to generate a lineart from a render. Edge detection is best if there is a contrast between objects/materials.

Is there a script/plugin that will automatically apply different random colors to materials? I think I once saw something like that, but can't remember where.

Thanks.

AlmightyQUEST

Hopefully others have more detail or other solutions, but if you have the product already, https://www.daz3d.com/oso-toon-shader-for-iray has a script that does someting like what you are describing. If I remember correctly it does some things a little different, assigning random mat ID numbers and using a special render mode to render based on those IDs, but the end result is designed for what you are describing with edge detection.