When I upload a 3D model to the site, textures and colours are sometimes missing: how can I make them appear?
When you upload your 3D file in certain formats, for instance.obj, you should include colours (textures), MTL file and the 3D model in a .zip archive. To upload your 3D model to the site, you must then select the .zip file on your computer.
The colors should then be visible in our online 3D viewer when you select the multicolor material. If the colors are not visible, you will need to enusre that the 3 files are zip archive together correctly.