Steps to reproduce:
1. Download and open attached project "Surveillant_VR.zip"
2. Open scene "Scenes/test"
3. Play the scene

Actual result: Look around using mouse and notice, that at certain angle shadows disappear (see attached images)

Expected result: No changes in shadow rendering

Tested and reproduced on:
Windows 10
Unity 5.2.4p1, 5.3.2p2, 5.4.0b6

NOT Reproducible on:
Unity 5.1.4f1

Note: On 5.2 shadows appear bigger instead of disappearing.