Comments on: Enveloping rigid elements

By: David

David — Thu, 02 Aug 2007 02:51:03 +0000

to Luz, yes, there’s a way to do that, but you have to trick XSI, if you look the SDK help, you will find a few commands that are quite helpful, the MakeBicepRoll, and MakeForearmRoll (or something like that, I don’t have XSI open right now, just do a search for biceproll or forearmroll in the help and they will pop up) very handy :)
if you have any questions you can email me
djaguilar3d@yahoo.com

By: xsi wing rig « Mr Blake’s Art Diary

xsi wing rig « Mr Blake’s Art Diary — Thu, 14 Sep 2006 22:35:40 +0000

[...] 93@N00/243434839/” title=”photo sharing”> useful ideas for rigging feathers a wing: link This entry was posted on Thursday, September 14th, 2006 at 10:3 [...]

By: luz

luz — Mon, 28 Aug 2006 22:31:03 +0000

Interesting ! Listen do you have idea how to create rolls divison for a bone chain of
4 bones ? and lets says I need 4 rolls division for each bone.
If you know how to to do that, can you describe it step by step ?

By: Malcolm Zaloon

Malcolm Zaloon — Thu, 24 Aug 2006 18:47:55 +0000

Hi Helge..
i have a proposal tool found in:

http://www.xsibase.com/forum/index.php?board=9;action=display;threadid=26600;start=0

thanks for now.

By: Helge Mathee

Helge Mathee — Thu, 24 Aug 2006 16:18:01 +0000

Sure. Email me privately my email is in the profile page.

By: Hidekazu Shimana

Hidekazu Shimana — Thu, 24 Aug 2006 10:38:02 +0000

Hello Helge-san

I would like to introduce the this page for Japanese XSI user. So, I will transrate the this web page.
Would you like to introduce the transleted page on My company’’s web site?

By: Andy Nicholas

Andy Nicholas — Wed, 23 Aug 2006 17:20:04 +0000

That’’s a really interesting approach.

I had a play around with it earlier and was surprised to see that if you create a “cluster with center” on the Bnd points, you don”t get any deformation when you animate the bones (providing the ClusterCenter operator is underneath the envelope operator). You”re then able to animate the cluster null and get correct deformation regardless of bone position. V handy for rigging setups.

By: Malcolm Zaloon

Malcolm Zaloon — Tue, 22 Aug 2006 21:34:01 +0000

Ok, i understood .. only instancing…

I tried freeze featherCloud, and have some speed improvement (around 35%). Very cool!

so, how can i control scale of feather? I see that nulls only controls the ori/pos of feather.

thanks again Helge.

I have other technical Question… i remmember that your scripts are VB… but now, i see this in Js… Are you migrated? If yeah, why? It�s faster?

thanks again Helge.

By: Matt Lind

Matt Lind — Tue, 22 Aug 2006 20:09:43 +0000

This setup reminds me of a rig somebody did back in the old Softimage|3D days with a parrot (circa ~1996). Instead of using enveloped quads, they used 2d chains as the 2-points to guide the instanced feathers as it allowed the effectors to be driven by curves, constraints, or Fcurves to make the feathers rotate. I cannot remember for sure, but I think the feathers were then deformed by Qstretch or curve deformation on top of the transforms supplied by the 2D chains so the feathers could bend with a little time lag in relation to their motion. gave a semi-realistic quality that was artist friendly to control.

By: Helge Mathee

Helge Mathee — Tue, 22 Aug 2006 17:29:37 +0000

well - in the test script I submitted all feathers remain live and connected to the nulls which created them. if you freeze the cloud object you should get an enormous speed increase.

you need a distribution algorithm on how you want to put the objects onto a surface, all you need to create is the cloud, envelope it (maybe using gator) and the instances will move correctly with the wing. this algorithm does not deal with interpenetration - it is only dealing with the instancing part.