Had a similar problem once, and the only thing to do was to add materials my self. I am of cause not sure if it has changed since.

http://192.18.37.44/forums/index.php?topic=8024.0

I don't think so.
I think the problem is, that xith doesn't load materials from ASE, so in xith you'll need to add materials to your ase objects, and then place lightsources.

http://www.harme.dk/engine/inside.pdf

For anyone interested, a small part of the report concerning the program

http://xith.org/demo/org.xith3d.gsg.php

Look at the ase transformgroup and asetest code... It's a pretty simple example, but it explains the basic of transformgroups

Hi. 11 is a great score. It’s equal to an A :-) Still can't believe it.

The source code is a mess because I only had two months to create it program, but I’ll upload the part of the report that describes the program in a day or so.

A summery: A webcam gets an image and detects red colour (the user of the program will wear a red light). This is mapped to a grid and this grid is used to control the view. If the views position matches a given variable (vector), the render is stopped and a new frame is created in which an mpeg2 movie is played. The motion detection is then used to move forward and backwards in the movie and when the movie ends, the frame is closed and the render is started again. It’s supposed to be an interactive movie. There were some bugs in the end because caused by JMF. For some reason it has problems moving in a movie precisely enough for my needs. Something about the setMediaTime() doesn’t really move to the precise timeframe. 

Thanks for the quick reply. You are the greatest!

Btw. I got an 11. for a project involving xith3d and jmf (3d, video and motion detection). I owe much of this to you people who made xith so intuitive!

Hi. I need to add a function where the user can press a key and take a screen dump, saved as an image (e.g. jpg). Is this possible and how?

Ok, and as it states all should be fine until the framerate drops below 60. Great.

There is an error with either xith3d or the new x600 mobility graphics card.  

I tried the "game" on a friend's computer, and it doesn't show fog?!?  He has a Ati x600 mobility SSE2 graphics card with 128mb ram! When he runs some of the new games (which runs FAST! in comparison to my mobility 9000) there is fog. Is there a problem with xith?

- edit -
Isn't there an error in the Javadoc under Options?

It says: "Whether or not OpenGL's second exponential fog algorithm (GL_EXP2) should be used instead of GL_EXP2 in the rendering of exponential fog."
- edit -

Hi. I have added a fps counter and I was very surprised by the result.

When I just run the level (without sky, fog or light), I get approximately 180fps.
By adding the sky to the scene I get 160fps
Adding fog gives me 130fps
Adding ambient light gives me: 120fps
Adding directorial light gives me 90 fps!

Can it really be true that fog and directorial light takes so many resources or am I doing something wrong? If not, is there anything I can do to increase the performance?

I was also wondering about that. Also, if there is no support for ase materials, what does the AseMaterial class do?

I have changed the zip to include all libraries and dll's needed. Could someone test if it works?

I have updated the code to include simple material and lightning support. This is taken from one of the examples in the xith package, and works ok. I would however like to use the material information included in the ase file. Is it possible to do this, and how? I can't seem to find an example on this. The only thing I can find is the AseMaterial() method, but I'm a little unclear on how to implement it?

The file has now been changed to zip, and I have added a small readme and also included vecmath.jar

When it crashes, the entire computer freezes up and I am not able to do anything (not even ctrl+alt+del). Then after a while, I get an error that something has happened to the graphics driver, and the screen switches to 640x480, 16 colours, and then the computer reboots I can't see a errormessage because of this, and I can't seem to pipe it out?

It's nice that it runs on you computer. I have still only tested it on the Mobility 9000 graphics card which really stinks The demo of cause do not demaind anything specific right now, so this could also be the reason it works on your computer



Your right. I'll add a readme text explaning the use and version numbers




I'll try to look at this, but I'm not sure it will be just yet. I'll need to reinstall my system first to be sure where to put the different files so they work, because as I have installed xith3d (jogl ect.) they are copied to so many directories that it will be impossible for me to know if it will work.



I hope that others will try to run it and give me some feedback. It's nice that it didn't crash on your computer, but I still think there is something wrong with the rendering method.
Shouldn't you test to see that the render is finished before rendering the next frame?



I packed the files with winrar, so I don't understand the rars don't work perfectly, but maybe I should use zip's instead?

Hi. I'm starting to learn how to use xith3d, and my own experience is that there are very few examples for newbie's like me on how to create 3d games.
My intention is to post my own code as it develops. I hope this is ok. This way I and others can also get some feedback on what to do / not to do.

The code as it is now uses the ASE loader to load the world. I have added a very simple keyboard control that changes the view.
One of the current problems with the "game" is that it will crash on a slow computer. I think this might have something to do with the handling of threads, but I am working on this now.

I successfully loaded a level with 200000+ polygons on a p4 2.4 GHz with an ATI Radeon Mobility 9000 graphics card with 64mb memory. I think this is quite nice but I removed some of the demanding objects for this example because it will totally crash a computer if it is not fast enough to run the code.
If it should crash, try changing the sleep thread in the while loop to e.g. 40.

If you have any comments they are of cause very welcome  

Source: http://www.harme.dk/testlevel.zip





- 03-10-2005
Added simple material and light

-03-12-2005
Added Fog

I can not reinstall right now. We are working pretty hard on our exam project, and I do not want to risk that xith won't work because of the install trouble.

It works for development right now because I have copied the files to almost every directory I could think of :-)

I appreciate you folks are willing to help and I hope that you still will when I get a chance to reinstall the system.

Hi. As it is now, I have copied the xith files to a lot of different directories in order to get it to work.

I will reinstall my system tomorrow and try to copy the files to the directories that Prop explains. Then I'll write you with the errors I get.

Hi.

Prop.class shows this:

Native Library path(s): C:\WINDOWS\system32;.;C:\WINDOWS\system32;C:\WINDOWS;C:\
WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;c:\ant\bin;C:\Program Files
\Common Files\Autodesk Shared\;C:\Program Files\backburner 2\
Java Library path(s): C:\Program Files\Java\jre1.5.0_01\lib\ext

This works, however not if I download the demos and run them outside the xith library. Also I can't get the quake demo to work. It returns this error:

OpenGL Extensions = GL_WIN_swap_hint GL_EXT_bgra GL_EXT_paletted_texture
net.java.games.jogl.GLException: Method "glActiveTextureARB" not available
       at net.java.games.jogl.impl.windows.WindowsGLImpl.glActiveTextureARB(Win
dowsGLImpl.java:94)
       at com.xith3d.render.jogl.TextureShaderPeer.shade(TextureShaderPeer.java
:668)
       at com.xith3d.render.CanvasPeerBase.setState(CanvasPeerBase.java:121)
       at com.xith3d.render.CanvasPeerBase.render(CanvasPeerBase.java:99)
       at com.xith3d.render.jogl.CanvasPeerImpl.drawBin(CanvasPeerImpl.java:678
)
       at com.xith3d.render.jogl.CanvasPeerImpl.display(CanvasPeerImpl.java:849
)
       at net.java.games.jogl.impl.GLDrawableHelper.display(GLDrawableHelper.ja
va:74)
       at net.java.games.jogl.GLCanvas$DisplayAction.run(GLCanvas.java:198)
       at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:239)
       at net.java.games.jogl.GLCanvas.displayImpl(GLCanvas.java:186)
       at net.java.games.jogl.GLCanvas.display(GLCanvas.java:74)
       at com.xith3d.render.jogl.CanvasPeerImpl.render(CanvasPeerImpl.java:950)

       at com.xith3d.scenegraph.View.renderOnce(View.java:732)
       at com.xith3d.scenegraph.View.renderOnce(View.java:665)
       at com.xithtk.loaders.quake3.Quake3Renderer.runRenderer(Quake3Renderer.j
ava:348)
       at com.xithtk.loaders.quake3.Quake3Renderer.init(Quake3Renderer.java:306
)
       at com.xithtk.loaders.quake3.Quake3Renderer.main(Quake3Renderer.java:373
)

Also it says it runs on opengl version 1.1 where the demos that comes with xith runs with version 1.3.4830 WinXP Release

I don't know if this explains it. If not, just ask, and I will try to explain it in further details. I'll do almost anything to get this to work :-)

I know this is a trivial question, but can't anyone help me?

Hi. I feel like a fool, but I simply can't install xith correct. The demos work, but I e.g. can't run anything without pointing directly to the jars.

I have followed the install guide, but I find it rather confusing because e.g. my native and library paths don't seem to be the same as the guide specifies.

Does anyone want to guide me through an install on XP with Java JDK 1.5? Just describe where to copy the different files add something to system variables (if needed) and so on.
It would also be nice with a specific command line on how to compile and run the code with the above install. Just to get anything right this time.

-- Java is placed here:
C:\Program Files\Java\jdk1.5.0_01
C:\Program Files\Java\jre1.5.0_01
--

Putting the xith canvas into a panel wouldn't slow down the performance. If not, the idea sounds great. Actually we did the same thing in 2D.

The idea about showing video inside the 3D world is also interesting for further projects. Can anyone post some code examples? E.g. the one with using QuickTime and Jogl?

Hi. We are trying to create an interactive movie for a school project. We will need both 3D and video, however we have no experience in doing 3D in java, so we would like to know if it is possible to use e.g. Xith3D to do the 3D part, and then when video is needed, run it in the same window as the 3D (stop the 3D stuff and run video on top of it). We have done something similar with Java2D, but as I understand it, there is a big difference with the way Xith handles e.g. threads and so on.