Iray doesnt support Render To Texture either, it just gets disabled when I try, with a warning message The new ART renderer is fancy, but does not support Render To Texture Mental Ray is bugged in that, while it has a rich set of Render Elements for normal rendering, for some reason they are unavailable in RTT the same Scanline legacy elements are shown how do I get around this? I would love a solution for this Scanline renderer doesnt support any of the modern render elements that I need (roughness, metalness, etc) I can Vertex-paint them but that opens a new can of worms. I can import the wall pieces into the object room, but they will be entirely untextured. 3D Coat can only bake from objects in the sculpt room, not from other paint objects, and the single wall that you see in the picture is already a 'done' paint object

It's not exactly rectangle-shaped, but if I copy this piece, it will make a nice wall from which a texture can be picked.

I tried to bake it in 3D Coat but here's the problem. I'm working with 3ds Max 2017 (in which i happen to have corona on the side) and 3D Coat 4.5 and I'm trying to bake a tiling wall texture. I'm writing this here because I've already tried everything I could think of, but I see no straight way to do this.

Wall paint texture for 3ds max