Physically Based Rendering (vol.3) Pharr, Jakob, Humphreys. Because it covers most, if not all, the maths required to do PBR right. If you are interested in gr

Physically Based Rendering (vol.3) Pharr, Jakob, Humphreys. Because it covers most, if not all, the maths required to do PBR right. If you are interested in graphics, this book MUST be on your shelf.