rayIntersect is presently only implemented for sphere and box, so only those objects can be picked. It needs to be written for each primitive.
Cylinders now implement rayIntersect. It seems like the most important primitives now do it, so I'm downgrading this to 4.
Cylinders now implement rayIntersect. It seems like the most important primitives now do it, so I'm downgrading this to 4.