[Sidefx-houdini-list] carve by attribute

François Duchesneau sidefx at trinix.ca
Wed Apr 13 11:11:44 EDT 2016


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On 04/13/2016 11:07 AM, Jordan Halsey wrote:
> Here is an OTL that does what you want, just plug in any number of curves,
> set you time offset, and choose your curve sorting method. This method uses
> chops, with a carve sop, and so far is the fastest method I have seen for
> doing this. Dive into the chop network, and look at the copyChop and Shift
> chop to figure out how this works. This method works well with other
> situations as well.
>
>
> Jordan
>
>
> *Jordan Reece Halsey*
> *maya | houdini | nuke | ae*
> *www.jordanhalsey.com <http://www.jordanhalsey.com>*
> *323-273-9995*
>
> On Wed, Apr 6, 2016 at 2:57 PM, Jesse Erickson <mr.nicey.pants at gmail.com>
> wrote:
>
>> Ah, I see. Sorry missed the part about varying the line length, that's a
>> great method!
>>
>> On Wed, Apr 6, 2016 at 2:47 PM, Alex Lim <alex-list at leisora.com> wrote:
>>
>>> You won't need to worry about clip sop won't accept varying parameter.
>>> Instead, you vary the length along X axis (let's say).
>>>
>>> Think of it like a paper shredder: you can't vary the shredding line to
>>> which you feed the paper, but you can vary the length of the paper to
>> feed
>>> to the shredder. Afterward you restored the partially trimmed paper, you
>>> get varied carve result. This method will can work with any geometry, and
>>> probably can handle heavy dataset better than foreach sop.
>>>
>>> On Wed, Apr 6, 2016 at 2:20 PM Jesse Erickson <mr.nicey.pants at gmail.com>
>>> wrote:
>>>
>>>> Interesting idea Alex, although Clip doesn't accept variables either so
>>>> you'd still need to run it through a ForEach. Is there any advantage to
>>>> doing the operation on uv position vs. just doing a normal carve?
>>>>
>>>> On Wed, Apr 6, 2016 at 1:06 PM, jordanhalsey <jordanhalsey at gmail.com>
>>>> wrote:
>>>>
>>>>> Depending on what you want to do, chops can do some of this, chops
>> also
>>>>> has a copychop, with a shift chop and some other stuff thrown you can
>>> do
>>>>> some cool stuff with mass amounts of curves. Definitely faster that
>> amy
>>>>> forloop stuff.
>>>>>
>>>>>
>>>>> Sent from my Sprint Samsung Galaxy Note5.
>>>>> -------- Original message --------From: Jesse Erickson <
>>>>> mr.nicey.pants at gmail.com> Date: 4/6/16  10:25 AM  (GMT-07:00) To:
>>>>> sidefx-houdini-list at sidefx.com Subject: Re: [Sidefx-houdini-list]
>>> carve
>>>>> by attribute
>>>>> Not really, doesn't take varying values. You can either put it in a
>>>> ForEach
>>>>> running on primitives or rewrite the whole dang thing in Vex. If you
>>>> don't
>>>>> have that many curves just ForEach it.
>>>>>
>>>>> On Wed, Apr 6, 2016 at 5:05 AM, Gerbrand Nel <g at cannonballbunny.com>
>>>>> wrote:
>>>>>
>>>>>> Hey guys
>>>>>> Is it possible to drive the first u value in the carve sop with a
>>>> custom
>>>>>> attribute?
>>>>>> If so, how?
>>>>>> Thanks
>>>>>> G
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