Thanks.

It works.
Thanks. So do you think I should replace the old jar with the new one you provided, is it a stable release?

You mean if I use the .jar you provided, the problem will be fixed?

when I use FrameBuffer.getOutputBuffer(), I get the exception as following:
java.lang.NullPointerException
   at java.lang.System.arraycopy(Native Method)
   at com.threed.jpct.FrameBuffer.getOutputBuffer(Unknown Source)

While when I use the old version, it works.

is it a bug?

The reason I need backend generating is that my game will be something like a TV station, it will constantly play 24X7X365. So if using backend generating, at least I needn't a monitor, and my code can be running in a more stable OS, like UNIX, Linux, to generate the movie.

And the generating process should be automatically, no manual operations like "save as..."

does anybody has the idea about generating a movie from OpenGL 3d in BACKEND, not just recording the screen?

Fraps works well when recording the screen, but the problem is:
1. it only records the screen, I need back-end generating the movie.
2. it seems that no compression for the movie, I am not sure about this.

Because the performance is not good enough.
And you have to open an openGL window which is the source of the pics.

Hi,EgonOlsen,
    Could you give me some idea about converting the 3d game based on jPCT to a video?
    And in the new version of jPCT, does the FrameBuffer.getOutputBuffer() still return an Image?  I got a nullpointexception here, while in previous version, it works good.
    My way to generate a video is as following:
    1. get images from the framebuffer using getOutputBuffer();
    2. create a mov file from the images created.
    I think it is not a good way to create a video, could you give me some tips about this? Is there an existed way in OpenGL, Lwjgl to do such a job?
Thanks a lot.

Thanks. It works.

could you tell me some details? thx

yes. it it.

And if I don't like use "canvas = buffer.enableGLCanvasRenderer(IRenderer.MODE_OPENGL);", I want to use "buffer.enableRenderer(IRenderer.RENDERER_OPENGL, IRenderer.MODE_OPENGL);",  so there is no canvas, not a JFrame, but a OpenGL window, how to close it?

my fault, Olsen.
Sorry about that.
You can delete this thread.

BTW, new version is much better than the old one, especially you add an anti-alias function.

haven't finished yet. sorry.

I just upgraded my horse race game to Jpct new version, everything looks good, except:
  previous I used a canvas as the content of a JFrame, like following,
     canvas = buffer.enableGLCanvasRenderer(IRenderer.MODE_OPENGL);
     this.getContentPane().add(canvas);
   now, because the method "enableGLCanvasRenderer" is not supported anymore, so I have to change into:
     buffer.enableRenderer(IRenderer.RENDERER_OPENGL, IRenderer.MODE_OPENGL);
     so there is no canvas anymore.
   But the problem is that when I try to close this webstart window, the close button on the top-right of the window doesn't work!!!
And I accessed the bluethunder, the demo webstart, the close button doesn't work either, I have to use keyboard to close this webstart window, but this is not a good way, I think.

So has anybody ever met such a problem and how to figure it out, I mean use new version.
Thanks.