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Re: (OT?) Lynx3DM video chip questions

From: --friar <>
Date: Wed, 05 Jun 2002 10:35:50 -0400

Rick wrote:
[stuff snipped]
>However, while the general video capabilities have
>improved for this chip - the 3D capabilities of this
>chip in the Linux world are untapped.  This chip
>supports OpenGL in the Windows world.. but not in the
>Linux world..   This certainly holds some interest to
>augmented reality issues - rendering (superimposing
>the image of a new design  graphically over reality)
>etc.. 
>Is this another area where the Linux world has cooled
>their heels a bit because they have a half dozen chip
>sets that give them 3D but only work in a power hungry
>environment?
>
>I'm just curious what others here think about the
>importance of 3D rendering to wearable use.. and
>"slow?" advancement of Mesa (OpenGL).. 
>
>Also if anyone else is using this chip ... I'd like to
>hear about how well it works.
>
>Rick

Speaking as both a wearable enthusiast and a member of the
Direct Rendering Project for linux/XFree86, I'd have to
say that most of the slow development time for new hardware
pretty much boils down to 3 things.

1) VERY few graphics hardware companies are willing to
   release programming specs to their 3D hardware.  This is
   usually attributed to them guarding their intellectual
   property (or the intellectual property of a 3rd party).

2) OpenGL 3D device drivers are extrememly complex pieces
   of code.  Very few people have the knowledge required
   to complete a driver before becoming frustrated and quit.

3) Lack of available hardware to test with.  Most of the
   active members of the DRI project only have 1 or 2
   video cards to work with.  Few people can afford to go
   out and buy 6 different $200 videocards.

These three problems combined make for a bit of a
chicken-and-egg problem.  Why buy a card when you can't
get specs for it?  Why should the manufacturer give out specs
when they can't count on anyone to build a decent driver?

If you can get programming specs without a restrictive
NDA, I encourage you to join the DRI project and give it
your best shot.

--friar

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