[Sidefx-houdini-list] Ray Pop

jon parker parker.jon at gmail.com
Tue Jun 22 01:16:20 EDT 2010


Sorry I meant "Intersect" followed by "Primitive Attribute".  Just
send the output of Intersect to the input of Primitive Attribute.
-Jon

On Tue, Jun 22, 2010 at 1:15 AM, jon parker <parker.jon at gmail.com> wrote:
> Yes, and "intersect" followed by "Import Attribute" to get info about
> the surface you hit.
> -Jon
>
> On Tue, Jun 22, 2010 at 1:05 AM, Alex Lim <list at poh-yee.com> wrote:
>> Hi,
>> I think you can use Intersect to simulate Ray sop. :)
>>
>> -Alex
>>
>>
>>
>> On 6/21/2010 8:28 PM, François Duchesneau wrote:
>>> Sounds like it's exactly what I need.
>>>
>>> Many thanks
>>>
>>> François
>>>
>>> Szymon Kapeniak wrote:
>>>> I'm not sure about Volume Gradient Vop in relation to that subject,
>>>> but there is the Intersect VOP, also in Vop Pop, which does ray
>>>> intersection test. It returns world position of intersection + uv and
>>>> $PR of hit polygon. Afaik, all you need to perform Ray SOP in vops.
>>>>
>>>> 2010/6/21 Francois Duchesneau<sidefx at trinix.ca>:
>>>>
>>>>> Is there a way to simulate the Ray Sop but in the pop context? Or even
>>>>> better to have access to this mechanism inside vop pop. I mean something
>>>>> like using Volume Gradient Vop or a not obvious tool of the same kind.
>>>>>
>>>>> I guess I could bring my particles inside Dop and use a combination of the
>>>>> Sop Solver but I was looking for something more easy to setup.
>>>>>
>>>>> François
>>>>>
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