To be fair, this is the nightly build, and not even a beta. I'm sure the 1.1.1a release build works much better.

They still shouldn't have demo source that doesn't compile. I also hate spending effort learning the old maintenance branch which will soon be replaced by a much better update.

It's not you, the demo source isn't in a compilable state. BTW, I'm a complete OpenGL newbie, but this clearly is beyond simple build/setup/environment issues.

I tried the same demo.nurbs.curveapp code... I could make a few fixes:

change this: import javax.media.opengl.GLCanvas;
to this: import javax.media.opengl.awt.GLCanvas;

change this: import com.sun.opengl.util.GLUT;
to this: import com.sun.opengl.util.gl2.GLUT;

But I'm still getting a non of compilation errors that are clearly not basic build or environment issues. For example, I get errors on the following three (separate) lines:

this.nurbs = glu.gluNewNurbsRenderer();
gl.glMatrixMode(GL2ES1.GL_MODELVIEW);
gl.glLoadIdentity();

Thanks for the help. It actually took a few hours of futzing with JFrame, layouts, canvas/panels, to figure out exactly how to get them properly wired together, but it's working perfectly!

BTW, I'm using a JPanel instead of a Canvas which people say is slightly better...

I can see how to build a BufferedImage with pixel data. So far, that's perfect.

What do I use to get that image into a window or screen? Should I use AWT, Swing, or JavaFX?

What's the best JVM-friendly API for direct 2D pixel buffer access. I'm looking for development simplicity, elegance, and uninhibited rendering speed.

I'm loosely familiar with AWT, Swing, and JavaFX, but what specific control our class do I need to get a raw binary pixel buffer that I can write to?