Open Shridhar2602 opened 10 months ago
I observed the same problem. From my understanding, the problem is related to #933. Not sure why it was fixed in v3 but v4 has the wrong implementation. Basically, the sampling PDF and scattered ray should be linked. We cannot change the sampling PDF (pdf
in the code) without changing how the scattered ray is sampled.
Related to #1302
In section 6.2, "Using a Uniform PDF Instead of a Perfect Match", there's a need for clarification to avoid confusion. The section currently states -
In my implementation, I am getting a much brighter image after changing the PDF to uniform, which as per my knowledge is the expected behavior. While the section does mention increased noise, it doesn't adequately address the potential issue of a brighter or dimmer rendered image. This omission can be frustrating for beginners, who would expect to see a slightly noisy image but would instead get a drastically different render after changing the pdf.
Or am I mistaken and going wrong somewhere?