Particle System

[swpalmer]

now the linux/macos versions of jogl are in place.

Sweet us Mac users were not forgotten
Works great on OS 10.3...cool

[Jens]

That is awesome!  Are you going to be making the source available?

i can post al link if you are interested. just give me a couple of days to bring some things in the right shape.

Is the source available? I think a particle system is interesting for a lot of Xith3D users.  

[Jens]

Just saw that Java Cool Dude has java-files in the zip-download of his particle system. However your source can still be useful.

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

[desertrock]

i'm working on it. just cleaning some things up. hopefully at the beginning of next week i can provide the souce,

holger

[goosebump]

cant get it to work with JWS, is there any other way to see this? Dou you have a jar, screenshots ?

thanks
goosebump

[Jens]

cant get it to work with JWS, is there any other way to see this? Dou you have a jar, screenshots ?

Which error messages do you get? Make sure that xith3d.jar is *not* in /jre/lib/ext (this is a webstart bug).

[goosebump]

The error I get is

"Unsigned application requesting unrestricted access to system"

I also checked that Xith3d is not in  the /jre/lib/ext. Any ideas whats happening or how to fix it?

jar file would make it a lot easier

[Jens]

"Unsigned application requesting unrestricted access to system"

I also checked that Xith3d is not in  the /jre/lib/ext. Any ideas whats happening or how to fix it?

Looks like desertrock forgot to sign one of the jars. Which system are you running? (Win/Linux/Mac)

[goosebump]

I am running windows 98.
goosebump

[bcooper]

Works and Looks Great. Outstanding Job.

Win2K Server
JDK 1.4.1
NVidia ti4600

Coop

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

[desertrock]

hi!

source is now avaliable at:

http://users.xith.org/desertrock/particleforge/src/src.zip

it should compile against the latest xith3d cvs version. ensure that you put the library located in /lib in your classpath...

greetings,
holger

[nib]

What version of Java are you running?  Is it your browser that is asking for the username and password?  What browser?

Will.

Sorry for the delay getting back to you:
1) Version: 1.4.2-beta
2) Java is asking for the pword, not the browser. It says "Checking for latest version..." in a background window and then in front of that is a window asking for username and password that says "User Authentication" and "server is requesting authentication for:"

Now, I am behind a proxy server so I'm wondering if that's the problem.

[shochu]

Hi,
  I'm trying to get your particle system to work but by meshing it with my code.  (I hope you don't mind, it's just an academic project for my own benefit)  I was looking at the ParticleCollection class and it looks like this is what is needed in the scenegraph.  

I initialized a ParticleCollection

ParticleCollection emitter = new ParticleCollection()

then I added this to my scenegraph.

Then each render pass I call emitter.updateData();

Unfortunately nothing appears.  

Here's my question.  I noticed each ParticleCollection has it's own viewMatrix.  I assumed this was to make it easy to keep the particleCollection (emitter) on the screen.  However, we don't have to use this right?  It would be alright to keep the viewmatrix of the particleCollection null so long as we translated the particleCollection into the view of the screen.  This was the approach I was taking just for testing purposes.

Hmm, after a lot of testing it definately has something to do with the call to emitter.setViewMatrix()

Does anyone know what this does exactly?



Is there something I'm missing to make sure the particles appear?  I'll keep fooling around with it in the meantime.  THanks for your help!

[desertrock]

hi!

sorry for the delay...

shochu, try the following:

1   2   3   4   5

emitter = new ParticleCollection(); Transform3D tmpT3d = new Transform3D(); tmpT3d.set(new Vector3f(0.0f, 0.0f, 1.0f)); view.setTransform(tmpT3d); emitter.setViewMatrix(tmpT3d.getMatrix4f());

the ParticleCollection needs the the viewMatrix to calculate the billboard for each particle, so you have to set the viewMatrix.

hope this helps...

greetings,
holger