This requires selecting the side in the vertex modeler, naming it as a shading domain. Name each side a different name / domain. Then in texture room, apply a layer list. Use parametric for each side, apply each layer a parametric layer - choose the shading domain, apply a color or texture .... just play around with it. You'll need to add six layers for each side of the cube. It took me a while to figure it out, sorry if I didn't explain it well. I'm not at my computer. R.

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