There didn't seem to be proper sub forum, so posting it here... Was trying to create my own simple showroom but there doesn't seem to be any documentation so it kinda trial and error. Whats the purpose of the double showroom floor? floor and floor01? do they have different materials also? do i have to use some special material/tick some setting, before exporting? Code: Instance=shwfloor { Moveable=True MeshFile=floor.gmt CollTarget=True HATTarget=True ShadowReceiver=True Instance=floor01 { Moveable=True MeshFile=floor01.gmt CollTarget=True HATTarget=True Reflect=True } } For my experiment i just duplicated what i had and renmed it floor01 and it seemed to work Also where does it take the background texture for my shoroom becouse although i used the "backdrop" showroom as example i dont have the backdrop.gmt in my scn file also getting weird white line on floor when rotating camera to look down