RE: [Algorithms] Geomerics.

[Newport, M. <mne...@ea...>]

It certainly sounds interesting but I couldn't find any real hard
information on what they're doing from their website or anywhere else.

I've been interested in Geometric Algebra for a while but from what I've
seen (and I'm hardly an expert so take this with a pinch of salt) it's
just a better way of representing / conceptualizing the same math we've
all been using for ages. It doesn't let you do anything radically new,
although by virtue of being simpler to work with it may make some things
easier to work out or to implement. Generally at the moment GA based
implementations of traditional graphics number crunching are actually
slower than the traditional methods it seems though.

A good intro to GA is the interactive 3D tutorial here:
http://www.science.uva.nl/ga/viewer/ - there's even a tutorial from GDC
2003 aimed specifically at game developers.

Matt.

> -----Original Message-----
> From: gda...@li...=20
> [mailto:gda...@li...] On=20
> Behalf Of Michael Edwards
> Sent: Friday, March 24, 2006 2:18 PM
> To: gda...@li...
> Subject: [Algorithms] Geomerics.
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> So there's been some buzz lately about a company called=20
> Geomerics using
> geometric algebra and wavelet techniques to achieve an=20
> advanced lighting
> solution that goes beyond what is currently feasible with spherical
> harmonic techniques.=20
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> "Their system handles dynamically changing lighting=20
> environments, moving
> objects and changing viewing angles. The technology not only handles
> diffuse lighting and soft shadows but also allows for dynamic specular
> effects to be integrated into the same pipeline giving rise=20
> to realistic
> glossy effects unobtainable from existing spherical harmonic
> implementations."
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> http://news.teamxbox.com/xbox/10508/Geomerics-to-Unveil-New-Wa
> velet-Tech
> nology-at-GDC-06/
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> Has anyone seen a demonstration of this technology? Does=20
> anyone have any
> experience with geometric algebra or any ideas on how the Geomerics
> technique works?=20
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> I'm guessing they're using wavelets to encode precomputed light fields
> and radiance transfer - with geometric algebra to somehow simplify the
> calculations.=20
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> Should we start reading up on geometric algebra or is this technique
> patented already? :)
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> Cheers!
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