RE: What's this error message?

["Halfdan Ingvarsson" <hingvars(at)Softimage.COM>]

This looks like it is coming from scene pre-processing. Usually it means that there's a transform on an object that has zero scaling, or other such anomalies which means that mental ray cannot create a global->local transform matrix.

 

This might mean that there are zero-sized particles being pushed (they theoretically shouldn't) and used to scale the transform of the instance.

 

 - ½

-----Original Message-----
From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM]On Behalf Of Arvid Björn
Sent: Wednesday, 05 April, 2006 09:52
To: XSI(at)Softimage.COM
Subject: Re: What's this error message?

That's odd, I'm actually only using default phong shaders at this point!
I guess a lot of things can cause this, they do use transform matrices for a lot of things :-)
The message actually dissapeard after I applied the animation clips and removed all
model nulls and mixers from the instanciating group, so it should be related to that.

Thanks
-a

--
stockholm.postproduction | www.stopost.se

On 4/5/06, Bernard Lebel <3dbernard(at)gmail.com> wrote:

I got this message when I used the misss_fast_skin shader on an object
that had interpenetrating geometry (a character sitting, where the
shirt would enter the legs).

The only way I could "fix" this was to remove the interpenetrating
geometry not visible in camera. Also made rendering a LOT faster.


Cheers
Bernard




On 4/5/06, Arvid Björn <arvidbjorn(at)gmail.com> wrote:
> Does anyone know what this is related to? It's a pretty basic scene with
> heavy particle instancing, running on the renderfarm, it's not happening
> locally though!
>
> ...
> SCEN 0.2  warn   072006: cannot invert a transformation matrix
> ...
>
> It just keeps echoing that message, for over 10 minutes now
>
>
> -a
>
> --
> stockholm.postproduction | www.stopost.se
>
>

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