Show HN: Physically Based Rendering – Online Edition
Thank you for this detailed description. I will definitely take a look and read a few chapters about the light transport.<p>Just a remark. When I first read the title, I was interested in the approximations you use because you emphasize physics so much in your book and your title. I read the preface and found a suspicious sentence.<p><i>When configured to do so, pbrt can compute images that are physically correct; they accurately reflect the lighting as it would be in a real-world version of the scene.</i><p>That is not correct. You use a phenomenological model for the light-matter interaction and approximate the effects of light with raytracing. That still produces (almost) photo realistic images for our eyes, but is not &quot;physically correct&quot;. A paragraph on the limitations of technology could be worthwhile.