[gl4java-usergroup] where to compile display lists?

[jim h. <jh...@33...>]

Sorry this message 1st apeared in the gl4java.sourceforge forums - didn't see the (obvious) use the mailing list!

If I compile a display list in init() it works fine, but if I do it during the call to display() I can use it during that call but it is gone by the next one!

so in display() I have:

if( gl.glIsList( LIST_NO )
{   gl.glCallList( LIST_NO );
}else
{
    System.out.println( "defining new list for " + LIST_NO );
    gl.glNewList( LIST_NO , GLEnum.GL_COMPILE_AND_EXCECUTE )
        gl.glBegin( //yada yada
        //...
        gl.glEnd(); 
    gl.endList();
}

Java prints the "defining..." on each repaint, not just once, therefore it is creating the list each time! :-( What's going on here?!

Sometimes I don't want to define somthing at the start in init, because by then I don't have all the info I need. How can I define persistant display lists after initialisation? At the moment the only way I can define new display lists is to create a whole new GLDrawable!

Btw, I am testing this on java 1.4.2 on winXP with the latest nvidia drivers.

Thanks in advance to anyone who can help with this!
Jim

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