I'm a member of the Gay Men's Chorus of Washington, DC. In the last couple of years, I've had the opportunity to contribute to a couple of our productions by creating some 3D graphics that were projected onto a screen on stage. The most elaborate animations I did were for our Spring 2002 production of The Wizard of Oz. Alas, some of these animations are too big to host here, but I've put up a few stills and one short animation to give a feel for what I did.
At the end of Act I, Dorothy, Scarecrow, Tin Man and the Cowardly Lion escape from the poppies with the help of Glenda. This image was projected at the back of the stage when they wake up and see the Emerald City in sight. I really wanted this to be fancier, but ran out of time.
After reaching the Emerald City, the travelers try to see the Wizard, but the Wicked Witch of the West interferes with some skywriting. This animation is short enough to include here.
Once our heros get into the Wizard's Chamber, a huge glowing face appears and demands to know why they've come. This was a fun effect to do, but the lightning bolts were a pain.