[Sidefx-houdini-list] meshing study

herman herman02 at netvigator.com
Fri Mar 28 10:21:39 EDT 2008


hi dave & François,

thanks, that's what i will commit myself in going through all the help 
card... i also bought "the magic of houdini" and david gary tutorial, 
however, my work mainly involve with modelling, so there always a need to 
explore more.

cheers herman

----- Original Message ----- 
From: "David Johnson" <daveinengland at gmail.com>
To: <sidefx-houdini-list at sidefx.com>
Sent: Thursday, March 27, 2008 11:35 PM
Subject: Re: [Sidefx-houdini-list] meshing study


> If you have the time, take a couple of SOPs every day and read the help 
> card
> that comes with them. Then once you've read all the SOPs, move on to 
> another
> manager (like POPs) and read all of those. Pretty soon, you'll be 
> answering
> all the questions here.  :D
>
> Dave
>
> On Thu, Mar 27, 2008 at 2:20 PM, herman <herman02 at netvigator.com> wrote:
>
>> hi david!
>>
>> yes, it works magic... seems like so many hidden treasure in houdini i'm
>> purpose to know and not know, and not find tutorial in these regards and
>> is
>> frustrating sometime!! i think attribute create & point sop is a powerful
>> sop, i need to explore more about its (hope i can find more information 
>> at
>> the help brower)...
>>
>> and its great to have the community to teach me how!!
>>
>> thanks
>>
>> herman
>>
>>
>> ----- Original Message -----
>> From: "David Johnson" <daveinengland at gmail.com>
>> To: <sidefx-houdini-list at sidefx.com>
>> Sent: Thursday, March 27, 2008 7:05 PM
>> Subject: Re: [Sidefx-houdini-list] meshing study
>>
>>
>> > The point SOP is useful for adding standard attributes, such as color 
>> > or
>> > normals. Just change the drop down menu to "Add Color" and put an
>> > expression
>> > in the three color channels.
>> >
>> > But to add a custom attribute, the Attribute Create SOP is the one to
>> use.
>> > In your case, you'll want to add a width parameter. Drop down an
>> Attribute
>> > Create SOP, put "width" in the name field, put WIDTH in the local
>> variable
>> > name field. Set the class to point, and type to float.
>> >
>> > Then the only tricky part is putting your expression in the right field
>> at
>> > the bottom. There are two sets of parameters that seem like the are the
>> > same, but they aren't. The default values fields are for any points 
>> > that
>> > aren't in your point group up at the top. The value fields are the ones
>> > you
>> > want. Since you're only dealing with a float (not a vector), put your
>> > expression in the first one.
>> >
>> > Then you're good to go.
>> >
>> > In the polywire SOP, put $WIDTH in the radius field and behold the 
>> > glory
>> > of
>> > varying widths on your polywire!
>> >
>> > Dave
>> >
>> > On Thu, Mar 27, 2008 at 8:00 AM, herman <herman02 at netvigator.com> 
>> > wrote:
>> >
>> >> hi david,
>> >>
>> >> thanks for the advise, i think i know what u say conceptually, 
>> >> however,
>> >> i'm
>> >> not familar with point sop and i did tried it overnite but not quite
>> >> sucessfull, would u mind to enlight me more?
>> >>
>> >> thanks
>> >>
>> >> herman
>> >>
>> >> ----- Original Message -----
>> >> From: "David Johnson" <daveinengland at gmail.com>
>> >> To: <sidefx-houdini-list at sidefx.com>
>> >> Sent: Wednesday, March 26, 2008 5:02 PM
>> >> Subject: Re: [Sidefx-houdini-list] meshing study
>> >>
>> >>
>> >> > The polywire SOP can use point attributes to control it on a per
>> point
>> >> > basis. For instance, if you put a width attribute on the points and
>> >> > then
>> >> > in
>> >> > the Wire Radius field put $WIDTH, your mesh will have varying radii
>> >> along
>> >> > it. The same works for most all of the parameters.
>> >> >
>> >> > Does this help?
>> >> >
>> >> > Dave
>> >> >
>> >> > On Wed, Mar 26, 2008 at 6:44 AM, herman <herman02 at netvigator.com>
>> >> > wrote:
>> >> >
>> >> >> Hi all,
>> >> >>
>> >> >>
>> >> >> After looking at this few sites of what 3dmax can do with the
>> hexagons
>> >> >> meshing http://designreform.net/?p=86  and along with this more
>> >> elaborate
>> >> >> design for rhino
>> >> >>
>> >>
>> http://madeincalifornia.blogspot.com/2008/03/parametric-honeycomb-series01a.html
>> .
>> >> ..
>> >> >> I'm trying to explore the same in Houdini.
>> >> >>
>> >> >>
>> >> >>
>> >> >> Firstly, if I want to do some fancy meshing pattern, is the "divide
>> >> sop"
>> >> >> the only option I have?
>> >> >>
>> >> >>
>> >> >>
>> >> >> After making the meshing pattern in "divide sop" from "box"(polygon
>> >> >> mesh)>divide sop (check compute dual), there seem to have only one
>> >> option
>> >> >> left to make it into a frame by connecting it to "polywire" sop.
>> >> >>
>> >> >>
>> >> >>
>> >> >> however, if I want the joint to have buckle as in here
>> >> >> http://www.flickr.com/photos/7453761@N05/2362689599/sizes/o/
>> >> >>
>> >> >> or
>> >> >>
>> >> >> to change the depth or width of individual frame that varies (since
>> >> >> the
>> >> >> polywire seem to be too uniform), there seem to be a limit.
>> >> >>
>> >> >>
>> >> >>
>> >> >> any suggestions?
>> >> >>
>> >> >>
>> >> >>
>> >> >> Thanks
>> >> >>
>> >> >>
>> >> >>
>> >> >> herman
>> >> >> _______________________________________________
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>> >> >>
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>> >> >
>> >> >
>> >>
>> >>
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>>
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