Jobs and Catmull decided that, in order to show off their hardware and software,
Lasseter should produce another short animated film in 1986 for SIGGRAPH, the annual computer graphics conference.
At the time, Lasseter was using the Luxo lamp on his desk as a model for graphic rendering,
and he decided to turn Luxo into a lifelike character.
A friend's young child inspired him to add Luxo Jr.,
and he showed a few test frames to another animator, who urged him to make sure he told a story.
Lasseter said he was making only a short, but the animator reminded him that a story can be told even in a few seconds.
Lasseter took the lesson to heart. Luxo Jr. ended up being just over two minutes;
it told the tale of a parent lamp and a child lamp pushing a ball back and forth until the ball bursts, to the child's dismay.
Jobs was so excited that he took time off from the pressures at NeXT to fly down with Lasseter to SIGGRAPH,
which was being held in Dallas that August.
"It was so hot and muggy that when we'd walk outside the air hit us like a tennis racket," Lasseter recalled.