How to extract 3D Models? (Resolved)

edited August 2016 in Pro Support

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?

Comments

  • Rar and 7z are compressed files. Download 7-zip to uncompress them and then you will be able to use their content. 

    http://www.7-zip.org

  • Triem23Triem23 Moderator

    AramM is correct in that rar and 7z are archives and he'd steered you well, there. 

    On to 3D models in Hitfilm in general. 

    Hitfilm supports models in 3DS, OBJ and LWO formats. However, a certain percentage of models you download free from TF3DM or Turbosquid aren't going to work? Why? Each of these three file types date back to the 1980's or 90's. They define models and materials in certain ways, but have limits compared to current capabilities. These file formats were chosen because they are often used as interchange formats between different software packages. That said, current software may do things beyond the capabilities of those file formats. For example, a fractal pattern might be used to create a material in Blender. However, none of these three formats support procedural noise textures. Additional steps need to be taken in Blender to convert the procedural material into a UV unwrapped bitmap material, or else a Blender export to these file formats won't work correctly--the materials will be lost.

    Most models you'll find on free sites were created by software with a native format that isn't 3DS, OBJ or LWO, and, to be very very blunt, a LOT of those models were created by students or beginners who do not yet have the skills to correctly optimize their converted exports to work correctly. I, and several other users here can give you stories about having to patch, repair or rebuild models from TF3DM or Turbosquid.

    Windows 10 3D builder is designed to give data to 3D printers, and the chances are that 3D builder's OBJ exports are exporting a subset of the OBJ options. There would be no materials, no normals, no colors, no glossiness, as a 3D printer uses none of this data. However, without this data Hitfilm is unable properly render the model. 

    In short, Hitfilm's 3D model capabilities work as advertised, but there's a lot of crappy, broken models out there for free. 

    I have no idea what type of models you're looking for, so, just for fun, here's a simple 3D model I know works in Hitfilm. 

    http://www.turbosquid.com/FullPreview/Index.cfm/ID/789560

     

  • Now working, Thnx to all!

  • Glad the models are working for you.

    It'd be cool if you could post some pics of what the models look like in your HitFilm. Thanks.

  • Triem23Triem23 Moderator

    HarryM glad it's working. :) 

    @Spydurhank my previous post in this thread noted that a high percentage of models that are free on Turbosquid and TF3DM, et al, are often built just... Wrong, and often require repair in a 3D package before Hitfilm import. Since you're a heavy 3D guy, back me up on that? 

    HarryM, I'm gonna link some tutorials here for you. A couple of them are older versions of the software, but everything in them still applies, and they are still the best tutorials for what they cover. 

    First, just to show a more advanced use. 

    https://youtu.be/KKWk0cR9RHE

    And the fundamentals:

    https://youtu.be/RG4wTsEC3Vo

    https://youtu.be/9eUV_4lsbl0

    This last tutorial is similar to the previous, but shows off some other methods new to Hitfilm 4. 

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