"A moment of truth," says Eon's dad. They had to wait a long time for the render — about an hour and fifteen minutes — before the moon animation was finally done.
Why so slow?
Remember, the computer renders every frame by calculating how light hits the model — and there are dozens or hundreds of frames at high quality. Multiply that much math by all those frames, and you get a long wait.
Patience is part of the craft. While you wait, the computer is doing billions of tiny light calculations to make your movie look real.
The payoff (and a limit)
When it's finally done, Eon plays his finished animation — smooth, glowing, worth the wait. He asks if he can zoom in to see more detail, and learns something true about rendered video:
Once a frame is rendered, it's "baked" — the detail it has is all it will ever have. You can't zoom in to find more than was made.
That's why artists choose their quality carefully before the long render begins.
Try it
Think of baking a cake: you wait while it cooks, and you can't un-bake it. A render is similar — set it up carefully, start it, wait, and enjoy the result.