(2020-04-30, 19:01)Travis Cobbs Wrote: I don't think that would be possible, due to the fact that there is nothing underneath the polygons representing patterned sections. There's no way for the renderer to know if a given polygon represents paint over top of the part's inherent color, or something else. There's also no way for it to know the opacity of the paint, which I am sure differs both based on the paint's color and based on the part's age. (I can't imagine that LEGO would avoid changing their paint formulation if they knew that a new formulation would be better. I assume that it has changed over the years.)
You could probably approximate it by assuming that all non-color 16 faces were printed and then using the base color to blend. I agree that this is a problem that doesn't need to be solved, can be solved easily, or is even practicably solvable.