how can i get new chapter?

[caochao]

hi, patricio gonzalez vivo!
thanks for your great work of 《the book of shaders》, it helps me a lot after spent a week read it.
it seems some chapter like "Image processing" and "3D graphics" has not been released?
please let me know if you update those chapters, look forward you update.

[ghost]

just discovered this and was wondering about this myself.
When trying to subscribe to the newsletter it says:

This account is temporarily unable to receive new subscribers.

[JC-ProgJava]

Same here. Also, I've noticed that chapter 'Image processing' seems to be complete (although it isn't linked to other chapters).

[wang1212]

See #221 (comment)