[Sidefx-houdini-list] Point Cloud lookup in POPs

Premamurti Paetsch premamurti.paetsch at gmail.com
Thu Jul 15 01:25:51 EDT 2010


Oops, I mean Graham of course...sorry....need sleep.

On 15 July 2010 14:55, Premamurti Paetsch <premamurti.paetsch at gmail.com>wrote:

> Thanks for that Andrew!
>
> I'll give the suggested hack a go, sounds promising.
>
> Cheers,
> Prema
>
>
> On 15 July 2010 14:30, Graham Thompson <captainhammy at gmail.com> wrote:
>
>> I forgot to mention you should be able to hack it though by using an
>> intermediary SOP Network.  For example, if you throw down a SOP
>> Network in your popnet then inside that throw down a Pop Merge SOP.
>> You can point that to a specific POP in your chain (the node before
>> your VOP POP) and it will merge in the particles from that.  You could
>> then tell your pcopen VOP in the VOP POP use the op: syntax to
>> retrieve the geometry from the POP Merge and you should be good to go.
>>  In theory anyway.  My really old test file still seems to work.
>>
>> On Wed, Jul 14, 2010 at 9:39 PM, Graham Thompson <captainhammy at gmail.com>
>> wrote:
>> > Unfortunately the op: command doesn't support reading geometry from a
>> > POP stream so you are out of luck.  I'm pretty sure there's an RFE
>> > kicking around for it somewhere though so it's always a possibility
>> > support will be added in the future.
>> >
>> > On Wed, Jul 14, 2010 at 9:13 PM, Premamurti Paetsch
>> > <premamurti.paetsch at gmail.com> wrote:
>> >> Hey everyone,
>> >>
>> >> I'm trying to look up a point cloud inside a POP network, which works
>> fine
>> >> when pointing the geometry input to an external source in SOP's (using
>> the
>> >> op: command).
>> >> But I can't figure out how to do the look up on itself, ie. having a
>> VOP POP
>> >> looking up point data from the incoming node above it inside POP's. All
>> it
>> >> returns is zero, also the handle coming from the pc open VOP seems
>> invalid.
>> >> :-(
>> >>
>> >> Is this even possible?
>> >>
>> >> Thanks,
>> >> Prema
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>> >
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>
>



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