Camera jumping on older Xeon CPU maschines

[baumgore]

Vray 3.003 3dsmax 2014 Windows Vista/7/8 mixed. All our older 8 core (2Xeon x 4) 2007/2008 MacPro renders a animated camera constant slightly rotated (1-2 degree around camera-view-center) compared to all newer Workstations/Render nodes.
On all Windows versions (Vista/7/8 all x64)
Rendered frame by frame over Backburner.
Embree on/off don't change sth.
On multiple independent scenes.
Free 3dsmax standard Cam.
MacPros 12 core (2 x 6) and Dells 16 core (2x render consistent right (camera rotated as intended).

Yes it is as strange as it sounds.
Will prepare scene, haven't got spare time till now.

[baumgore]

Testscene is here (attached).

I've took the camera of the original animation (architecture walkthrough) strip it of every rotation except Z (vertical) and surrounded it with test-plane/-boxes.
Video with superimposed green help-lines for vertical-check included. Camera should be absolute horizontal, boxes absolute vertical, but it renders different on different machines.
I've included 5 slow 8 (2x4) cores 2007 renderslaves and a fast 16 (2x cores 2013 Dell Precision 5600 in the rendertest (slave: Valentin).
The original Scene is a mature, bigger indoor scene. There all 8 cores render with slanted camera, in this tiny test some of them render straight.

We exclude the slow slaves from actual production renderings now, but the camera jumping is a bug and should not happen.
Renders perfect in Vray 2.4 on all machines.

Keep up the good work

[baumgore]

OK, redownloading VRay and reinstalling seams to help.
Reinstalling Vray alone didn't work, but a new download and installing does.
Crazy but it helps.

[tashko.zashev]

Hi Valentin,

Thank you for updating the thread. Actually I made a test with your file and the final animation looks fine.
I see the camera shaking from the example you have added. It's very strange and if you came across the same issue again, let us know so we could troubleshoot further.