On Thursday 20 June 2002 07:17, you wrote:
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> On Sunday 16 June 2002 12:09, Robert Voigt wrote:
> > On Saturday 15 June 2002 06:20, you wrote:
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> > > On Friday 14 June 2002 21:55, Robert Voigt wrote:
> > > > The FAQ on the GL4Java website contains a question without an answer:
> > > > My Canvas renders 1 frame, then stops, what's wrong ?
> > > > I'd really like to know that because I ran into that problem.
> > > > I followed the instructions about using the GLEventListener model,
> > > > and now this.
> > >
> > > ;-)
> > >
> > > FOR GLEventListener's: dont make current and/or free by your own,
> > > within the GLEventListener methods, implemented by your own.
> >
> > I don't call gljMakeCurrent() or gljFree(), nowhere. Still I get only one
> > frame, then my object disappears. I don't know what else I could try. I
> > did everything I could see in the gears demo.
>
> ok - then, please send a little demo (< 1MB)
I found the problem. It was me who messed it up :) I let it draw something
that was smaller than 1 pixel. But there was a reason for being confused.
When I startet the program I always got 1 frame with my geometry visible. So
it was drawn with the wrong modelview matrix or whatever matrix, I don't know
much about these matrices yet.
I send a fixed version of my program. The object is now 25 pixels big, so it
is visible. But you can still see that in the first frame it is drawn much
bigger and somewhere else. I don't think that's a real problem, but it's
interesting. |
