Re: weighting highres mesh off of low res mesh

Date : Thu, 14 Jul 2005 08:37:18 -0500
To : XSI(at)Softimage.COM
From : greg punchatz <greg(at)janimation.com>
Subject : Re: weighting highres mesh off of low res mesh
There is a copy weight script out the that will help with this. Do your weighting to the low res mesh. Assign the same bones to the hires mesh and run the script. It works pretty darn good.

The cage deformer needs an over haul, its way to damn slow and heavy.
-
Greg Punchatz
Senior Creative Director
JANIMATION INC.
www.janimation.com <http://www.janimation.com/>



Alan Jones wrote:

Hmmmm ok - this is going completely away from your question, but I'll
throw it in here anyway.

Have you looked at animating using a reference model, save that off.
Put high res mesh in an empty scene to keep the cage op working. Load
the animation up from the original scene. Then put together a plugin
to cache the mesh and polygon info for each frame off to files. Then
use an operator to load that back up in the original scene and hide
your referenced model.

Though this is probably much more effort for a once off than just
weighting the heavy mesh.

Cheers,

Alan.



On 7/14/05, Kris Rivel <krisr(at)quietman.net> wrote:


Actually, this is exactly what I did and produced very nice results. Problem is that the scene size is massive now, around 230MB and consistenly
crashes....sometimes when simply applying the cage op.


Kris


Alan Jones wrote: You could try using a low res cage to deform the high res mesh and
weight the low res cage to the rig. Not the same thing at all, but
might get you over the line.


Cheers,

Alan.

On 7/13/05, Kris Rivel <krisr(at)quietman.net> wrote:


I have a very highres mesh that I'm weighting to a simple rig. This mesh is actually many high-res mesh objects of varrying size. Weighting them directly to bones works but is not very user-friendly when it comes to editing the weights so there isn't any sliding or shifting at the seams where weights are blended between two or more bones. I therefore opted for a cage that was weighted to the bones. The cage works nicely, is easy to adjust when it comes to weights but the cage is extremely heavy and raised my scene size from 7MB to 230MB. Now XSI is trying to allocate 8GB of RAM and crashes when applying the cage to the high-res mesh. So now I'm looking for another option. Is there a way to apply weights from a low res model to a highres model like in 3DS Max....go this link and scroll down to "Skinwrap"

http://www4.discreet.com/3dsmax/3dsmax.php?id=870

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