RT Render on SU 2015 not rendering. Help.

[Craig2014]

I have SU 2015

I have VRAY 2 with RT.

I also have VRAY Express.

When ever I try to use RT it gets so far as stating 'preparing global light manager' but the render screen remains black.

I do a normal render and everything appears and is in order.

I set the view widow real small as well to 400 x 300

What settings am I missing?

Win 7
64 Bit
SU 2015
RAM 16 GB
Intel COre i7 processor CPU 2.30 GHz
GeForce GT 650M graphics card

Thanks

[rspierenburg]

What do you have your RT settings set to?

[Craig2014]

The RT Engine settings are:

Enable - ticked
Use Gi - ticked
Reflect Caustics - unticked
RT Mode - RT CPU
AA threshold - 0.001
Show AA mask - unticked
Stop when render done - unticked
Performance
Ray Bundle size - 16
TRace Depth - 5
GI Depth - 3
Refract Caustics - ticked
OpenCL Texture Size - 512
Max render time - 0.0
Maximum sample level - 0
Rays per Pixel - 4

Does that help!?

[andybot]

only use RT CPU. At this point GPU render is not supported.

[Craig2014]

...okay, still a black frame buffer screen.

Any other ideas?

[andybot]

probably need to go back to default settings and update camera, environment, etc. settings. There may be a bug that once you select other than RT CPU, the vray settings get messed up.