3D-Viewer

View and Navigate 3D models stored in OBJ, STL, Collada (.dae) (Xcode Compressed ) and PDF (PRC) formats.You can easily zoom, pan and rotate 3D model with multi-touch gestures. The application recognises various file extension and you can choose to load those files into this application directly from other applications like Dropbox and Box.
3D Viewer can also detect the ZIP files as the texture and material files for OBJ and DAE can be clubbed. Opening the ZIP will list down all the supporting files in ZIP that can be opened. 
3D Viewer is integrated with Box and Dropbox cloud storage allowing you to directly browse files on Box.com and Dropbox.com storage in the application itself. The sample 3D files are bundled with the application.
3D Viewer current version contains following features :
- 3D PDF (.prc files), OBJ, STL and DAE ( Compressed ) model rendering 
- Multi-touch gestures like zoom, pan, rotate and fit to screen
- Import models from Dropbox and Box cloud storage application.
- Open password protected pdf files.
- Easy file browsing for Box and Dropbox user (Box and Dropbox cloud storage is natively integrated with the application).
- Supports meshes and colors.