Re: 3d

From: Chris Smith (cdsmith_at_twu.net)
Date: 06/05/04 

Date: Fri, 4 Jun 2004 17:13:53 -0600

Liz wrote:
> I remember now that when I was downloading Java3D that there were
> two choices for the PC, namely based on Directx or based on OpenGL.
> Since my new laptop has "integrated intel graphics" that supposedly
> supports OpenGL in the hardware to some extent I was looking for
> something to take full advantage of it. I'm not so sure that Java3D
> does. Would the "basic OpenGL binding" do this?

That's a different matter. Java3D's scene graph API is a higher level
of abstraction, and has to implemented somehow at a lower level. That
implementation (which is hopefully not at all visible to the end-user or
Java3D client programmer) can be either via OpenGL or Direct3D in a
Windows environment, since both APIs are available, and Sun has provided
both implementations.

If your card advertises hardware acceleration of OpenGL, then *either*
Java3D's OpenGL implementation *or* a lower-level OpenGL binding will
probably equally take advantage of that hardware acceleration. However,
a lower-level binding may allow you to take better advantage of the card
if only some OpenGL operations are accelerated with fallback to software
rendering for others, which is often the case. If your card also
accelerates Direct3D operations, then it's also likely to be accelerated
with the Direct3D implementation of Java3D. 

-- 
www.designacourse.com
The Easiest Way to Train Anyone... Anywhere.
Chris Smith - Lead Software Developer/Technical Trainer
MindIQ Corporation

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