MultiMatteElement in VFB not saving

[bob-cat]

Hi all,

I have noticed when I network render the file using the Vray VFB the mattes aren't saving?
When its rendering I can see the channels in the VFB but they don't seem to be saved. They save fine if I turn off the Vray VFB.
What am I doing wrong.

Max 8 and 9
Vray 1.5 Final

[dimo]

Hi,

there are issues with the render element names. Check if they are too long, contain special characters or start with numbers. All of that can lead to problems.

Best regards,

Dieter

[bob-cat]

Hi Dieter,

Just tryed that, and still no luck. Can anyone save a MutliMatteElement automatically with the Vray VFB on?

[sv]

there are three possible ways to do it:

1.) Don't split the channels, render straight to .vrimg and extract the channel using the exr converter
2.) Don't split the channels, render straight to .exr, but you will need a decent compositing application, i.e Nuke, to use a layered exr file. Not many packages can properly use layered exr files
3.) split the elements out to separate files - (png, tga, tif, jpg, exr, whatever you want) - you need to make sure this option is ticked in the VrayFrameBuffer ("save separate render channels") and that they are pathed properly - i.e. tell the VrayFrameBuffer where you want to save the individual channels, and in what format.

The VrayFrameBuffer works differently to the max one, thus there are differences with how it saves the render elements compared to the max one.....

[bob-cat]

Perfect! Went with your last suggestion:

I stripped the path in the render element section and just named the different MultiMatteElements, eg. Glass, Panels.

In the VRay frame buffer, enabled the Save seperate render channels and named and pathed that, eg. P:\Projects\Channels.tga.

And then Vray appends the elements name to the end of this so I get (and saves the files which was my first question):

Channels.Glass.tga
Channels.Panels.tga

Perfect, thanks again.