I was thinking about upgrading to Hitfilm 4 pro so I downloaded the Hitfilm 4 pro demo. It said before I downloaded it that the only limitations were: export in SD quality, maximum of 30 seconds export and only to export to YouTube. I wanted to motion track and place a 3D model into my scene. I already new how to use mocha so I 3D camera tracked my footage and had everything ready. I went to a website called TF3DM and downloaded a 3d model that said its format was .obj. It wasn't, it downloaded ad a rar or 7z file. How do i convert it? However, I new that was never going to work so I went on to windows 10 3D builder and selected one of their objects and exported it as an obj. I imported it into Hitfilm by clicking import 3D model and it said file not supported. How do I download 3D models properly from TF3DM or why isn't Hitfilm recognising the media?