Gimbals, quaternions, and manual rotation

[jeremydouglass]

Just a note that you might also be interested in looking at the Picking Library implementation of picking. It is P2D/P3D only – not Java2D – but since you are using P3D anyway, it might be a good fit. Previous discussion:

Picking with JAVA2D

The source code for Picking is very compact – you can find it here: At first glance, it looks like the dependency on P2D / P3D (OpenGL) is in Buffer.java – specifically, the use of PShader (31) and the fact that Buffer extends PGraphics3D (33): As @TfGuy44 mentioned, you could write your own false-color buffer from scratch (copy the picking concept). As an alternative, you could fork Picking and write your own Buffer that extends PGraphicsJava2D instead.