I have read the past comments about using Blender to view OBJ and MTL files. I have not been able to get the MTL files to display in Blender. I have the 3-D surface but do not know how to get the MTL files to display. When I attempt to do this Blender crashes. The OJF file is 38 MB and the MTL files 986 MB.
I need a way to share the amazing OBJ with it’s associated texture with others.
The images were collected by a EVO II of a small reservoir in Utah.
So I started blender. Imported the OBJ file changing the y / z axes. The file opens and I see what looks like a 3-D hill shade image. I then click the Material Preview button. Nothing happens for about 10-20 seconds then blender shuts done and closes in a flash.
It may take a little bit for Blender to open the OBJ file. Give it time to load.
The MTL file is needed for the OBJ to properly display all of the textures of the 3D model. The only file you should be importing into Blender is the OBJ file. Even if you edit the OBJ, then nothing needs to be done to the MTL. I always leave the MTL alone.
To view the textured model in Blender, click on the globe looking button in the upper right hand corner of the window that had your model in it. I put a red circle around it on the image below.
If you want to share the OBJ, the rest of the files need to be shared along with it. Zip all of the files, OBJ, MTL and texture files, together and either upload to dropbox or sketchfab. If the zip file is less than 100MB then you can upload it to sketchfab with a free account.
I hope this helps. While I am not a pro a Blender, I use it all the time to orient 3D scans and photogrammetry before uploading to sketchfab. If you have any other questions, I will do my best to answer them.
Thank you for your reply.
I have not been able to get blender or meshlab to display the mtl files. When I click on the “world” nothing happens for 30 seconds then blender shuts off. This happens on my laptop but not my desktop power machine. My laptop may not have the hardware to do this type of work.