The JWS thread *Xith3D demos only*

[mix]

Ok I'll post few numbers produced by my configuration which is:

AMD Athlon XP 2.6 Ghz
ATI Radeon 97000 Pro
1024 DDR PC3200
Win XP Pro

resolutions set to 640*480

Quake3 (Sonic a/ gun): ~1000 FPS when window focused  ~250 when not focused.

[alive]

I'm glad to hear that my md3 demo works on your side, however I'd love to see you guys post something like the email that I received today:

I've taken JCD advice and here is my first post on the Xith3D forum. I've been lurking the forums from time to time.
I've got some Java3D experience, for my master thesis I tried to write a rigid body simulator using Java3D. Much of the time was used trying to create a decent collision detection routine. The code can be found here:
http://folk.uio.no/staalep/rbd.tgz (must have Java3D to run the graphics demos). The paper can be found here:
http://folk.uio.no/staalep/rbd.pdf, dont know if its very interesting, but it explains rigid body physics and simple collision detection theory.
The plan is to port it to Xith3D, but havent had the time yet...
- enough of my rants, the fps i get on the lates demo (q3 loader)
810-830 fps, but it drops to 740-800 for 1-2 seconds after mouseclick.
I can only run the demos in 640x480 all other resolutions is _greyed out_.

ståle

[Java Cool Dude]

New demo; TextureCubeMap
Well I asked Yuri about this feature a couple of months ago and he said that he was planning on implementing it in the near future.
Knowing how busy the guy is, I thought I'd give it a go myself and see if I can get it to work.
So not only this feature is now enabled in my own xith3d.jar, but it also supports some of the functions that are found in the equivalent Java3D lib but not functional ^_^.
I also added the following extensions to the TexCoordGen class: REFLECTION_MAP and NORMAL_MAP.
Enjoy

Games published by our own members! Check 'em out!

[swpalmer]

I feel so inadequate.  My 1GHz powerbook is running between 1/10 and 1/4 of the speed of Cool Dude's box.  It's only a year old and already I wan to upgrade - isn't that always how it goes?

[Java Cool Dude]

I got my mobo + cpu + ram + graphic card for a little over $400 US
The latest demo defaults at 1400 FPS @640*480 and 1200 FPS if using the REFLECTION_MAP extension

[StefanD2]

Texture CubeMap crashes like the Water demo for my GForce 3 but works on a Radeon 9000. I really do hope that the openGL problem will be fixed soon ...

[Yuri Vl. Gushchin]

JCD, I just added support for VP and FP to Xith3D core, so you can check it out from CVS and try with your demos.

Yuri

[Yuri Vl. Gushchin]

...and you should be able also to remove reference to log4j.jar from your JWS scripts, so download size will become a bit smaller.

Yuri

[Java Cool Dude]

All shit broke loose with the latest build...
/me investigating

[Java Cool Dude]

All demos should now compile using the latest CVS built.
More importantly, I reorganized them into java packages and separated the input files from the main class.
Also due to popular demand, all my demos are now compressed and available as winzip packages.

Fixes:
The latest demo, TextureCubeMap now renders correctly, big thumbs up for Yuri for fixing it ^_^.

I took off the phong demo again because I need some custom modifications to the XIth3d core to have it run optimally. I will hopefully put it back soon.

Games published by our own members! Check 'em out!

[Java Cool Dude]

Combined noraml map based bumpmapping + cubemapping to produce an awesome effect
The new demo will require VS and PS shaders support and was successfully tested using a Radeon 9700 pro.
One of my finest demos to date ^_^
PS: FPS 650

[Java Cool Dude]

Hopefully another fantastic demo tonight

[Java Cool Dude]

New demo up
Basically what I do here is, after computing the reflection vector in eye space and looking up the correct texture fragment in a cube map, I add the base texture to the final color and then scale it a bit.
This way we can have "true" reflection on random objects, like cars racing in a city etc...

[StefanD2]

Nice demos indeed. Sadly I got an error when starting
CubeMap Reflection

Cannot load image Data/Tile.PNG

[Java Cool Dude]

Ok fixed (that's one big oops right there )
Ok do the three last demos work for everyone with Geforce3 + class cards?

[StefanD2]

GForce3 and last three demos? The answer is it works partly ...

Texture CubeMap (yay):  crashes ...
CubeMap Reflection: Loads and runs but object (tea pot) is totally black
Cubic Environment bump mapping: same as CubeMap Reflection

[Java Cool Dude]

Texture Cube map crashes are due to faulty JoGL binding, Sun's guys need to fix that one up asap.

For the two others..., well have you tried a Radeon 8500 +?
It does work on my Radeon 9700 as well as Greg's 9600

[kevglass]

Same black shapes on my Radeon 9000 (Mobility) which as far as I know is just an under speed 9000.

Kev

[Java Cool Dude]

Looks like this demo will only work on 9600+ Geforce FX cards...
That's bizarre, I could have sworn the shaders I wrote were not that long

[Java Cool Dude]

Doh I should've done my homework before making any statments on the PS and VS compatible cards
Only Radeon 9500 + & Geforce Fx support ARB_FRAGMENT_PROGRAM whereas the ARB_VERTEX_PROGRAM is supported up from the GF3/Radeon 8500 to the latest offering...
On the other hand GF4/3 use matrices transformation on a texel level, which doesn't give much freedom to the developper but help accomplish simple effects.

[Yuri Vl. Gushchin]

GeForce FX 5200 works just fine.

Yuri

[Java Cool Dude]

FPS?
I get around 800 fps on my Radeon 9700 pro running the cubic environment bump map, how about you?
PS: I got  a 2.1 Ghz Athlon

[StefanD2]

@JCD: your update speed is amazing - even the new logo is integrated  

By the way: Is there something special with the cloth demo? I recently noticed that you are using the flag of tunisia as a texture.

[Java Cool Dude]

Well I have dual citizenships since I was born in the States from Tunisian parents
The good thing is, I get to travel a lot back and forth between my two countries and see a lot of different things

[StefanD2]

Comparing things from both sides of the story is never a bad idea

I currently wonder if there is something for java like ODE (http://sourceforge.net/projects/opende/) to simulate real physics. I know that there is a java binding (https://odejava.dev.java.net/) out there but never found something competing that is 100% java. Would be nice for simulations

[William Denniss]

there is a possibility of making the Odejava (which is more than just an Ode binding) pure java - but there is a large mantinence issue, in that someone would have to keep the ported code up to date with the C code.

Post over at the Physics forum if you want to discuss this more.

Will.

[Java Cool Dude]

New demo up: Cubic Water Reflection
Basically this demo shows how a TextureCubeMap can be used to render good looking water.
It also implements a technic to keep the skybox from getting closer or any farther from the camera by constantly correcting the center of the background geometry.
Finally I had to modfiy Xith3D source a bit to support  GL.CLAMP_TO_EDGE_EXT extension which is necessary to get rid of the ugly lines at the skybox edges.
Enjoy
PS: The only reason I use TGA files is because I can load them super fast to an ImageComponent2D whereas loading pngs jpgs or any other java-supported format must pass by a time-costly conversion

[aNt]

dude- does theat reflect the surounding objects also? or just the background? looks sweet.

[Java Cool Dude]

dude- does theat reflect the surounding objects also? or just the background? looks sweet.

Nope, only static backgrounds.
I need Yuri to get back to me with the reflection thing working to set it up to reflect the surroundings :-/

[StefanD2]

By the way: Runs fine on a Radeon 9000 and again GF3 has a problem when trying to run it ...