Lecture 13: Global Illumination & Path Tracing (25)
nickjiang2378
Is direct lighting just the light that gets directly reflected to the destination point - ie. not including the nearby incoming beams of light that also reflect to the destination point according to the reflection equation?
Boomaa23
@nickjiang2378 I believe so; otherwise you would be considering the ambient lighting as well when here we have a uniform lighting distribution.
beckyfeng08
isn't it supposed to be multiplying times pdf instead of /pdf in the else case? Since we are normalizing the output, and pdf is already defined to be 1/2pi
Is direct lighting just the light that gets directly reflected to the destination point - ie. not including the nearby incoming beams of light that also reflect to the destination point according to the reflection equation?
@nickjiang2378 I believe so; otherwise you would be considering the ambient lighting as well when here we have a uniform lighting distribution.
isn't it supposed to be multiplying times pdf instead of /pdf in the else case? Since we are normalizing the output, and pdf is already defined to be 1/2pi