I have done several tests using the Revit autogen materials and the render works great. Once I add VRAY materials and enable swarm the frame buffer shows a black image. The swarm also acts odd - it pings the other computers, says the node is not found and it keeps doing this for all nodes for about 30 minutes. Then it starts rendering at image pass 0 - still with a black screen. I left this overnight to run - and it stayed at pass 0. Any ideas?
Hi,
Can you try to open the V-Ray materials in the Standalone Material Editor and re-save them? Then re-render and let me know if they still render in black.
Ana