Model screenshoting

[ddksr]

Implement a 'screenshot' functionality. Capture a grey- and range image wirh respect to current camera position.
Connect the feature with Segmentor exporter.

[ddksr]

http://www.pcl-users.org/Range-image-and-OpenGL-td3558851.html

[ladolf]

Zajem slike deluje, potrebno pa je dodati še možnost za izbiro ciljne mape. Sedaj se shrani kar v Raa3D mapo.