Somehow it worked once only. No matter what I do it's no longer working :( Some of the conditions I'm respecting: 1. Ensure each sub-material has an Image Texture node. 2. Ensure both Image Texture nodes point to the same image file. Assuming you want all colours into one file. 3. Ensure both Image Texture nodes remain…
Not sure how it's called exactly, multi-material maybe. It's what I described above, you just have the add the different materials to your mesh and then apply each material to the faces in edit mode. Nodes are setup individually for each material, they don't influence the separation,
Sorry I didn't get back to you any earlier :( Also sorry I wasn't any clearer explaining my issue. But now that I read yours I can see that I had been misusing the term "vertex colours". I meant "a colour per polygon face". What is this type of colour called then? So then, what would be the nodes setup like to have the…
Regarding the vertex colour topic, I hope I understood correctly what you are trying to do. :) To achieve such hard transition between the colours, as shown in your example, you would need a lot of geometry because the colours blend between the vertices. I would rather create a black and white mask with vertex colours and…