Black Render when I activate DR

[DANIELE_CASAROLA]

hi!

When I render an interior scene with only one workstation all works correctly, when I check Distribute Render it appears all black (both light cache and irradiance map preview also).

Which could be the problem? I really don't understand why...
Some info:
-win7 64bit + 3ds max2013 64bit + vray 3.00.02
-All Cameras work in Single Machine mode
-For some cameras in the scene there is no problem, for other the problem sussist
-The scene yesterday works correctly... today I've simply added some geometries and made some material modifications
-I try to mantein the scene as clean, flexible and organaized as possible
-For some Cameras with problem the Light Cache and Irradiance Map preview appears grey
-No warning in the Log Message window, just a green line advising me that Light Cache is used for glossy rays
-Tried to merge the scene in a new one, no solved
-Tried to switch off and restart all machines and server, no solved
-Use of SolidRock plugin for render launching
-Tried DR with one node at time, no solved
-There are xref in the scene
-Except for Vray and SolidRock no other plugins used
*-When I disable one Xref it works
*-When I open the xrefed scene in a new scene and render it, all nodes render it correctly
*-If I merge the xref scene it works

Any kind of suggest will be well accepted.
Thank you very much.

[dlparisi]

Do you have any lights in the scene? DR does not support the default light.

[DANIELE_CASAROLA]

In the scene there are only VrayPlanar Lightss and a VrayDome Light, if with "default light" you mean 3dsmax lights, there aren't.

[Svetlozar Draganov]

First, make sure that 3DSMax default lights are turned off:


...then render the scene with and without Distributed Rendering.
If the result is still different:

*make sure that the slave-machine has access to all external assets used in the scene - textures, ies-lights,proxies and etc
*make sure that all machines participating in DR have exactly the same Vray build installed
*make sure that all the cameras (including the ones in xref-scenes) have different names
*check whether the issue is caused by every xrefs or just some/one of them cause it.

If you still have troubles please pack the scene and send it to us for investigation.

[Drachen]

Distributive Render is not compatible with Xref. All Xref's must be merged into scene and file re-saved for DR to work.

[vlado]

Distributive Render is not compatible with Xref. All Xref's must be merged into scene and file re-saved for DR to work.

Not necessarily; you can simply put the X-Ref files on a shared network resource (similar to textures), or in V-Ray 3.0 you can use the new option to transfer missing assets, which will handle X-Ref files too.

Best regards,
Vlado

[Rhys]

Im finding that vray 3 DR isn't as good as version 2. Getting lots of warning machine is not responding.

render host added
scene transferred
server scene loaded starting render
warning:render hose not responding.

all firewalls are off on the machines as well.

[tashko.zashev]

Hi Rhys,

Im finding that vray 3 DR isn't as good as version 2. Getting lots of warning machine is not responding.

render host added
scene transferred
server scene loaded starting render
warning:render hose not responding.

all firewalls are off on the machines as well.

You can send a support request about the issue you have with V-ray 3.0 DR to our mail support@chaosgroup.com and my colleagues will assist you.

[Dariusz Makowski (Dadal)]

Im finding that vray 3 DR isn't as good as version 2. Getting lots of warning machine is not responding.

render host added
scene transferred
server scene loaded starting render
warning:render hose not responding.

all firewalls are off on the machines as well.

Make sure your DR slave is also vray 3 and matching to ur workstation.

[alexyork]

Distributive Render is not compatible with Xref. All Xref's must be merged into scene and file re-saved for DR to work.

Not true at all, although for total peace of mind it would be best to merge them in first, as you say. But I routinely render DR renders with xrefs all the time, in 2.4 anyway. About to upgrade to 3.0.