Feb 28, 2011
In February 2008, Robert Hodgin published a series of Particle System examples that demonstrated many of the techniques behind his amazing work (i.e.: Magnetosphere). The examples, however, use some advanced GL calls (accessing JOGL directly) and no longer work in Processing 1.0. I would say a student comes to ask me about updating these examples several times a semester and I usually respond by pretending I know what I’m talking about and pointing the student some vague openGL direction. It’s time for me to bit the bullet and figure this out myself.
Step 1 is simply to recreate the examples using Processing’s core drawing functions sans fancy GL. Now, they run a great deal slower than Robert’s original examples because they are no longer using display lists.
UPDATE: Step 1a is to create OPENGL textures directly like so:
(Thanks to Jeff Gentes and Ben Hosken for chiming in)