I've been making some games using 2d OpenGL Processing, but now I'd like to give 3d programming a try. Is processing 3d suitable for this? I've programed in Lua, Python and Java before, and I'm trying to find a suitable game engine to experiment with. I've tried the Blender Game Engine, but It's pretty hard, and on my Windows partition I'm trying out Unity because I heard they're getting Linux support.