Got up to chapter 11, still missing "Fresnel Effect". But, I learned a lot of C and it's tooling. Which is a fancy way to say that I hit all kind of memory errors.

Just finished Chapter 9 of #theraytracerchallenge book. It took me a while find a good way to refactor support for multiple shapes in C. Ended up using it's flavor of "tagged unions".

Upto Chapter 7 of #theraytracerchallenge book. Time to unwind a bit. Can't believe people learn this in a weekend :P