Great stuff. I especially like the pumpkin example, where you can basically place the light inside the pumpkin and have it illuminate the interior. It’s a really nice effect, and very well done.

I didn't see an example but do you have any idea how well this approach would work with pixel-art / video game imagery?

I’d love to see it applied to something like a Myst-style game / point and click adventure game to use the dynamic light to illuminate different parts of the world.