I know when creating a brushed with visible textures, it's bad to overlap them. But what about brushed with invisible textures, such as playerclip and nodraw? Will overlapping a playerclip texture with a visible texture cause slow rendering in game, as if you overlayed visible textures? Also, when ysing playerclup at an angle over stairs, do i need to make that a func_detail as well? Or is it fine left as a world model?