(2016) Popular in:

2024 (110 points, 14 comments) https://news.ycombinator.com/item?id=42572602

2020 (316 points 80 comments) https://news.ycombinator.com/item?id=25244301

> ... and nothing is stopping you from adding a point3 to a color

Isn't that pretty much what you're trying to do when you calculate a bumpmap?