On a rainy spring night, Disneyland technology guru Chuck Davis paced along Main Street, overseeing a rehearsal of a new fireworks and light show for the park's 60th anniversary celebration.
Projectors, lasers, fireworks and audio equipment were assembled to create a show that displays well-known Disney characters on the facade of Main Street buildings while music blares and fireworks rocket over Sleeping Beauty Castle. It is one of three attractions that have been revamped for the celebration.
But the music booming through the outdoor speakers was cutting in and out, and the animated images were not perfectly aligned on Main Street's buildings.
“If it was easy,...