Hi Steve:

Yep, that was an idea I had...it's a bit overkill for my little short animation test, though. :P Quite amazed that having never gone through MR in XSI for a while, this is still a missing feature from the mental ray integration considering the FX Tree...

Thanks guys!

Yours sincerely,
Siew Yi Liang

On 4/20/2014 9:32 AM, Steve Parish wrote:
It's also possible to write a post render script in nuke that would compile them into one file.

On Sunday, April 20, 2014, Stephen Davidson <[email protected] <mailto:[email protected]>> wrote:

    I just saw that 3Delight also supports multichannel EXR and offers
    on free license.
    http://softimage.tv/3delight-for-softimage-4-0/



    On Sat, Apr 19, 2014 at 2:30 PM, Siew Yi Liang <[email protected]>
    wrote:

        Hi Stephen:

        Yep, I would have done that in VRay in school...but now if I
        have to re-do my shading and lighting >_< I think for this
        little thing I'll just render to seperate files for now. I did
        find this thread:

        
https://groups.google.com/forum/#!searchin/xsi_list/multichannel/xsi_list/ZIIQoCGQmQ0/mDemhTdPlwQJ
        
<https://groups.google.com/forum/#%21searchin/xsi_list/multichannel/xsi_list/ZIIQoCGQmQ0/mDemhTdPlwQJ>

        But I can't find the ctrl_pass/buffer shader mentioned
        anywhere around.

        Anyway, thanks! :) At least I know I wasn't missing something
        through the standard UI...

        Yours sincerely,
        Siew Yi Liang

        On 4/19/2014 7:58 AM, Stephen Davidson wrote:
        I believe you can also create multichannel exr's in Vray, as
        well.
        You are only restricted to separate passes, in mentalray, in
        Softimage.


        On Sat, Apr 19, 2014 at 10:39 AM, Stephen Davidson
        <[email protected]> wrote:

            Sorry, I misread your original question. It is not
            possible to have a SINGLE mult-ipass EXR
            file, in standard Softimage, only individual EXR file for
            each pass.

            You can do this in Softimage, with Arnold plugin:
            https://support.solidangle.com/display/SItoAUG/Multi-Layer+EXR


            On Sat, Apr 19, 2014 at 3:37 AM, Siew Yi Liang
            <[email protected]> wrote:

                Hi Stephen:

                I believe that's how I set my scene up; however,
                whenever I render, I'm still getting each EXR pass as
                a separate file instead of one multichannel EXR...?

                http://i.imgur.com/NNAnloG.png

                I tried setting the filename output to be just [Pass]
                without the [Framebuffer] token, but that just
                resulted in the last pass being what was written to
                the EXR.

                Is there something else I'm missing here? I'm on XSI
                2013 SP1 at home, but I tried 2014 at school and ran
                into the same problem as well, so I don't think
                that's the issue...

                Yours sincerely,
                Siew Yi Liang

                On 4/18/2014 7:06 AM, Stephen Davidson wrote:


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