Texture files must be in JPG or PNG format. You can use more than one texture map on your object but the maps are not allowed to overlap – the printer cannot figure out which texture to print in that case. The last limitation is the resolution of your texture and so we recommend that you keep the total resolution of your texture maps below 2048 x 2048 pixels. For example, if you need four textures, keep them all below 1024 x 1024 pixels. export your model to VRML97 or X3D, and create a ZIP archive of the exported model and all of the required texture maps.