For example, when creating a walls in a room or an outdoor environment I would like to have realistic shadows and lights.
The way is to assign albedo [likely repeating] material to faces and also another material on the top, which represents shadows and lights (created offline with radiosity or similar for realism—with color bleeding, soft shadows, skymap etc). Of course I could just bake everything into one texture but that also means much much bigger files and decreased performance.
What is the best way to do that in Away3D 4?
I thought of exporting objects with two different UVs (one for albedo and one for environment), but how to assign different materials to one mesh?
One similar functionality is in TerrainDiffuseMethod, but I don’t think you can have different UVs, and textures must be the same size. But the environment map could be much smaller.