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When viewing the scene, from different viewpoints (angles) sometimes the whole scene is culled away and hence not visible. I observed this with Isosurfaces, Fibers+ROI as well as FiberStipples, and it was reported to happen with NavSlices on MAC (but no further details on this).

How to reproduce:

This is not easy, as many modules may be affected. I first try to describe a minimal way to reproduce this with fibers.

Load fiber dataset (I will attach one to this issue @CST.fib@) and apply FiberDisplay module

Create ROI box to select some (but not all fibers)

Pan, rotate and reset view for some time (within 30sec I was so far always to reproduce)

I was also able to reproduce this with fibers+FiberDisplay only (i.o.w.: without a ROI-box) but this took much time longer (range of minutes, but also sometimes wasn't reproduceable).

Versions involved:

OW 1.3.1 hg6650

OSG 3.0.1

QT 4.8.4

Boost 1.49

NVidia: 310.44

Platform used: Ubuntu 13.04, x86_64, GPU: GF114 [GeForce GTX 560]

(from redmine: created on 2013-05-08, closed on 2014-03-12)