Instructions:
create /3Dmodels directory at root level
full path should be: /storage/emulated/0/3Dmodels

.obj, .mtl (materials), and textures (.png,.jpg, etc.) for each model must be in the same sub directory


Directory example:
http://i.imgur.com/8v9M0Ff.png


For non-VR mode tap screen while looking at the menu button.

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Some neat models to check out!:

Tie Fighter - http://www.models-resource.com/pc_computer/starwarsbattlefront2/model/8524/
Monster Hunter - http://www.models-resource.com/wii/monsterhuntertri/model/4754/
French Bulldog - http://www.models-resource.com/wii/SuperSmashBrosBrawl/model/9059/
Mushroom Kingdom - http://www.models-resource.com/gamecube/ssbm/model/5329/
Tupelo tree - https://www.dropbox.com/s/3fc2xqd1ovddicg/black_tupelo.obj?dl=0
Hyrule Castle - http://www.models-resource.com/gamecube/legendofzeldathewindwaker/model/3144/

Architectural model created with SweetHome3D - www.sweethome3d.com
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Troubleshooting:
Large models may crash on loading. Try turning off the background to save memory or restarting your device.

For large architectural models to improve performance try limiting amount of furniture details.

If textures aren't loading check that the paths in the .mtl file contain no special characters.
Try toggling the smoothing option.

For feature requests or a model isn't displaying as expected feel free to contact by email.

*NOTE: Getting reports of the app not working on Galaxy S6, but I'm unable to test it. Please contact me if you got it working on your S6.