Re: Geoshaders & external mi flies

[Philipp Oeser <philipp.oeser(at)liga01.de>]

Hi,

just to clearify:
You will still have to write your own parser (.mi or .obj for example) and build all geometry/UV/Normal/motionvector etc. from scratch, because using "mi_api_object_file" is restricted to mentalray standalone (never really got the reason for that...)
Cant read in mi-files directly...if you want to render directly in XSI, that is.
Have a look here:

http://www.lamrug.org/resources/placeholdertips.html

Greetz
Philipp


Amaan Akram schrieb:
> Hi Sebastian,
>
> Thanks for letting me know that it's possible. I am hoping to populate 
> a scene with low-res geometry and have it swapped out with high rez 
> one via a geo shader when a ray hits the bounding box.
>
> thanks
> amaan
>
> Sebastian Faber wrote:
> > Yes it is possible. We did it in our inhouse crowd tool. Another 
> > possibility
> > is to read a point cache within the geo shader.
> >
> >
> >
> >
> >
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> > -----Ursprüngliche Nachricht-----
> > Von: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] Im 
> > Auftrag von
> > Amaan Akram
> > Gesendet: Donnerstag, 1. Mai 2008 10:51
> > An: XSI(at)Softimage.COM
> > Betreff: Geoshaders & external mi flies
> >
> > Hello everyone,
> >
> > I've got a scene with potentially a lot of memory-hungry polygonal 
> > data and was wondering if it is possible to use Mental Ray 
> > Placeholders in XSI to introduce on-demand object loading and flushing.
> > Is it possible to load external .mi files from within a geoshader in 
> > XSI's mental ray (3.5?) implementation?
> >
> > thanks,
> > amaan
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--


LIGA_01 COMPUTERFILM GmbH
Philipp Oeser

MUNICH
Landwehrstrasse 60-62
80336 Munich, Germany
fon: +49 - (0)89 - 51 555 8-88
fax: +49 - (0)89 - 51 555 8-77

www.liga01.com

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