I'm developing a library to support large billboard particle systems, and as I was profiling, I found some low hanging fruit in PGraphics3.

Basically, several methods are creating temporary float[]'s. Because they are called so frequently in scenes with large numbers of polys, this can really add up. When I let my applet just sit there for 10 seconds of rendering, it added up to over 100MB of garbage objects.

I added some preallocated float[] vars to handle this, significantly imporoving performance. It looks like someone else has already done this for some other variables, and there are more of these to be found, I think.

I've never contributed before. Is there a procedure to submit modifications for review?

- Willis Morse