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Java Forum / Java 3D / November 2003

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Direct memory access, performance questions

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Thomas Rogg - 10 Nov 2003 22:47 GMT
Hello group,

I do not know if this group is for Java3D or 3D programming in Java in
general, but here it goes.

I was kind of bored during computer science and I wondered how fast Java
actually is when it comes to 3D. So I wrote a small 3D flat-shading
demonstatration, that renders a turning sphere with three moving colored
lights using Graphics::fillPolygon (software engines rock).

http://thomas.outcast-media.com/flatshading.html

It seems to be pretty fast and I can imagine creating Java flat-shading 3D
games this way.

Now, did anybody try textures and/or smooth shading in Java without stuff
like Java3D? Graphics::fillPolygon is not good enough for this purpose, but
I cannot find a way to get a direct memory access to a Image and I guess
without this the engine would be far too slow.

Anybody have an idea? Or shall I stick with flat-shading? I don't want to
use Java 3D or stuff like that.

Thank you,

Thomas Rogg
Jens Weggemann - 12 Nov 2003 10:23 GMT
> Now, did anybody try textures and/or smooth shading in Java without stuff
> like Java3D? Graphics::fillPolygon is not good enough for this purpose, but
> I cannot find a way to get a direct memory access to a Image and I guess
> without this the engine would be far too slow.

http://www.komplex.org/java.html
http://dn.planet-d.net/
http://www.jpct.net/
http://www.jvector.dk/
http://www.sumea.com/goodies.html
http://www.anfyteam.com/dev/a3d/
http://equinox.planet-d.net/java/
http://www.jazz3d.co.uk/

for direct image access, use BufferedImage (MemoryImageSource for
Java < 1.2).

bye,
Jens


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