[Sidefx-houdini-list] object_merge DOPs

Jed Schwartz jed at jedschwartz.com
Tue Oct 25 13:05:46 EDT 2005


Sho's suggestion to add a field to the merg sop "More"  $FF  to force  
cooking seems like the simplest workaround- but I suppose could add  
to the cooking overhead when not needed-


On Oct 25, 2005, at 11:47 AM, Andrew D Lyons wrote:

> Yep - if the object merge can't find the object on the first frame  
> on which it cooks, it will throw a warning, and won't look for it  
> again - even if the object is "appeared" in DOPs.
>
> I worked around this, but writing out the object being merged on  
> the frame it is born in DOPs, and then using a switch sop to change  
> from the baked model at birth frame to the DOPs output after the  
> brith frame.
>
>
>
> Sho Hasegawa wrote:
>
>> Did you change creation frame?
>> If so that's objectmerge's bug that I reported before.
>> For example, if your Olive has creationframe=10, objectmerge will  
>> return warning at $F<10, and even if you play simulation  
>> objectmerge can't cook by its self.
>> If this is the case, you need to merge all dop objects just  
>> feeding "/obj/dopnet1" and delete
>> everything other than the object you want.
>> But if you think this is awkward, I do actually,,, just add  
>> another merge field by clicking "More", and feed $FF, then the  
>> objectmerge sop will be cooked in every time step.
>> Cheers,
>> Sho
>> Jed Schwartz wrote:
>>
>>> I'm having an odd problem with outputting a DOPs scene to render-
>>>
>>> I create an object merge sop and set the object field to the DOP  
>>> obj,  something like" /obj/dopnet1:Olive/Geometry"--
>>> Initially this works, I assign shaders to the object and all  
>>> works  fine--  However, after I run the simulation once, I get an  
>>> "Invalid  sop specified" in the object-merge sop- If I toggle any  
>>> of the  options: create point groups, create primitive  
>>> groups..etc, the merge  object works again for another run--   
>>> Obviously a huge pain when  dealing with lots of objects-
>>>
>>> Anyone else seeing this problem??-
>>>
>>> Thanks!
>>>
>>> Jed-
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>>>
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>
> -- 
>
> ====================================================================
> Andrew D Lyons | FX Animator | Dreamworks Animation | 1 818 695 3963
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