RE: Jog my memory - deformations

["Matt Lind" <mlind(at)carbinestudios.com>]

I was looking for ways to deform a mesh through painting, and in a way that is more flexible than pushing via the surface normal direction.  Why?  World/terrain building and other time consuming tasks.  I could've sworn there was a sequence of XSI tools that could be bundled together to achieve the effect, but I can't remember which they were as it's been a number of years since I've done it.  I don't want to go down the path of using nulls and envelopes to deform geometry via paint as our meshes will have 200,000+ vertices.  I'll write our own paint tool before resorting to that.

 

 

Matt

 

 

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Gene Crucean
Sent: Thursday, May 29, 2008 8:18 AM
To: XSI(at)Softimage.COM
Subject: Re: Jog my memory - deformations

Hey Matt,

Can't you just envelope nulls to your object and push the nulls around with the bounding volume constraint? Maybe the envelope is a deal breaker.

On Wed, May 21, 2008 at 6:19 AM, Robert Chapman <tekano.bob(at)googlemail.com> wrote:

Hi Matt,

LM_weightmap tools would do this for you with a push operator. It has
a mode in the Proximity Map where you set it to cache and it keeps
maximum value - ie paints weights

http://www.alamaison.fr/3d/lmWeightMapTools/index.html

Ive attached a zipped scene that demonstrates this, of course you will
need (the rather fantastic) LM_weightmap tools installed.

regards,

Rob

2008/5/20 Matt Lind <mlind(at)carbinestudios.com>:
> Not grabber, sorry.  After a bit of searching on Google, I think the tool's
> name was Smither.  There used to be an 'unsupported gift' for Softimage|3D
> that did almost the same - 'Mush' if I remember it's name correctly.
>
> Anyway, I could've sworn some combination of native XSI tools could do the
> same.  I'm inclined to think the spherical wave tool similar to the old
> Softimage|3D tutorial of using it to simulate food being swallowed and
> bulging the esophagus.  Only I want the mesh to stay deformed after the icon
> passes over the vertices.
>
> If the XSI paint tool could do that, it would be better.
>
>
> Matt
>
>
>
>
> ________________________________
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
> Grahame Fuller
> Sent: Tuesday, May 20, 2008 1:12 PM
> To: XSI(at)Softimage.COM
> Subject: RE: Jog my memory - deformations
>
> Get > Primitive > Control Object > Volume Deform is very similar to Konshus'
> Grabber, if that's the one you're looking for.
>
> gray
> ________________________________
> From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of
> Thiago Costa
> Sent: Tuesday, May 20, 2008 3:28 PM
> To: XSI(at)Softimage.COM
> Subject: Re: Jog my memory - deformations
>
> Hey Matt,
> You can use a geometry and a particle system for that.
> Make the geometry be Cage deformed by the particle system, then apply your
> deformations in the particle system.
>
> Using the MT_MG addon will help a lot on that... as you can set a null to
> translate particles and the create a
> particle cloud that has one particle per vertex.
> good luck.
>
> 2008/5/20 Ahmidou Lyazidi <ahmidou.xsi(at)gmail.com>:
>>
>> Hi Matt
>> I remember using softbodies to achieve that, there is also a script called
>> Particle Deform, but it seems to not be online anymore
>> http://xsibase.com/scripts/simulate.php?detail=385
>>
>> Regards
>>
>> Ahmidou
>>
>> 2008/5/20 Matt Lind <mlind(at)carbinestudios.com>:
>>>
>>> I'm having problems remembering how to deform a mesh (or surface) using
>>> another object.  It involves some concoction of native XSI tools and behaves
>>> similar to the old Konshus tools for Softimage|3D if anybody remembers
>>> those.  Basically, you have a sphere and you drag it along another surface.
>>> The surface's points get displaced by the sphere - and stay displaced.  Kind
>>> of like clay sculpting.  I'm not talking the push paint tool, because that
>>> only displaces along the surface normals.
>>>
>>> Anybody remember the steps to set that up?
>>>
>>>
>>> thanks,
>>>
>>>
>>> Matt
>>>
>>>
>
>