I've recently found myself with copies of both Maple and Mathematica and I'm looking to use it to study relativity and hopefully the field equations of GR.
I mainly study general relativity but I've always been a pen and paper kind of guy except maybe doing some tensor calculations using Maxima when things become monotonous or excessive. I'm particularly keen to start learning some visual GR, if that makes sense. Some time this year, I'll be giving a casual presentation on deriving the Schwarzschild solution and I'd like to be able to display some cool images or animations to keep the (albeit small) crowd interested.
My question is
With regards to a spherically symmetric gravitational field. What are the modern references/resources for visualising GR?