Totally confused

I am new to JOGL (and OpenGL). I am getting very confused by the tutorials. eg

    public void drawPyramid(GLAutoDrawable drawable) {
        GL gl = drawable.getGL();

        gl.glBegin(GL.GL_TRIANGLES);
        gl.glVertex3f(0.0f, 1.5f, 0.0f);
        gl.glVertex3f(-1.0f, -1.0f, 0.0f);
        gl.glVertex3f(1.0f, -1.0f, 0.0f);
        gl.glEnd();

    }

doesn't compile at all. Looking at the API, there is no glBegin, or glVertex3f. Has the code changed a lot since these tutorials were created? Or have I downloaded the wrong thing altogether?

TIA

Hello,
If you use JOGL2, you need to call drawable.getGL().getGL2().
Regards,
Martin

OK thanks that compiles now. Still not sure what has happened with the tutorials I have seen (from around 2007), have functions been moved out of GL into GL2?

Are there any more recent tutorials?

Is it a good idea to use GL2 (is it stable or experimental at the moment).

Well you should use the demos related to the current version of JOGL. I think I found them on Sven's Git: https://github.com/sgothel

I also added the demos to the trunk of Jzy3d that I am currently trying to port to JOGL2, so you can browse them online there:
http://code.google.com/p/jzy3d/source/browse/#svn/trunk/src/jogl/demos

JOGL2 works well for AWT canvases in Jzy3d, but not for Swing yet. But I still have lot of things to read and learn concerning the best ways to uses canvases in JOGL2.

Martin

tomd wrote

Are there any more recent tutorials?

I've got a very recent tutorial at http://wadeawalker.wordpress.com/2010/10/09/tutorial-a-cross-platform-workbench-program-using-java-opengl-and-eclipse/. Justin also has a good beginner tutorial at https://sites.google.com/site/justinscsstuff/jogl-tutorials.

All the tutorials for JOGL 2 are listed at http://jogamp.org/wiki/index.php/Jogl_Tutorial.

tomd wrote

Is it a good idea to use GL2 (is it stable or experimental at the moment).

I wouldn't base a production-quality system on it quite yet, but it's improving rapidly. Our code at my workplace still uses JOGL 1.1.1a for stability, but we're evaluating JOGL 2 and will switch over as soon as our experiments show that it runs on all our platforms.