J_Ops has an "J_GotSomeID" node that should work.

http://www.nukepedia.com/plugins/other/j_ops/


On 26 March 2013 13:44, Diogo Girondi <[email protected]> wrote:

> I share Deke's experience with ID passes. I always go with standard (RGBA)
> mattes.
>
>
> On Mon, Mar 25, 2013 at 1:40 PM, Deke Kincaid <[email protected]>wrote:
>
>> In my experience ID passes are not that great to use for masks.  There
>> are gizmos on nukepedia which pull keys on the color but they are often
>> bleeding color into other channels because there are colors which aren’t
>> even secondary(pink, light green, etc..) and the pass is not anti-aliased.
>>  Also anything semi-transparent like glass or motion blur is an instant
>> fail.  It is much better to render a bunch of separate mattes to channels
>> in an exr file.  Nuke lets you have up to 1024 channels, so you should use
>> them :)  I haven’t seen a script for arnold yet but there are many for MR
>> and Vray to auto generate matte passes in separate channels of an exr for
>> objects in a scene.
>>
>> -----
>> Deke Kincaid
>> Creative Specialist
>> The Foundry
>> Mobile: (310) 883 4313
>> Tel: (310) 399 4555 - Fax: (310) 450 4516
>>
>> The Foundry Visionmongers Ltd.
>> Registered in England and Wales No: 4642027
>>
>>
>> On Thu, Mar 14, 2013 at 9:09 AM, letin210 <
>> [email protected]> wrote:
>>
>>> **
>>> Hi there,
>>>
>>> Has anyone never tried to work with ID pass generated from Arnold render?
>>> It could be very useful to get all the ID passes on one layer, but I
>>> cannot figure out how can I manage it.
>>>
>>> Cheers,
>>> Letin.
>>>
>>> _______________________________________________
>>> Nuke-users mailing list
>>> [email protected], http://forums.thefoundry.co.uk/
>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>>
>>
>>
>> _______________________________________________
>> Nuke-users mailing list
>> [email protected], http://forums.thefoundry.co.uk/
>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>>
>
>
> _______________________________________________
> Nuke-users mailing list
> [email protected], http://forums.thefoundry.co.uk/
> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users
>
_______________________________________________
Nuke-users mailing list
[email protected], http://forums.thefoundry.co.uk/
http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users

Reply via email to