- the article shows what needs to be considered when baking normal maps for use with separate applications
- it shows what kind of different conventions exists, what common artifacts look like and how to verify that the content pipeline is correct

- the article shows a connection between “2D cross product”, Complex Numbers and 2D rotation matrices

- the tweet shows an alternative formulation for a normal transformation matrix (required when non-uniform scaling is allowed)
- the technique uses less memory but more …