Just to confirm, is the cos(theta) here the Lambert's cosine law one or the spherical integral one? I was thinking it was the Lambert's cosine law meaning, but you say in the video that it's "to account for the way we parameterize integration", so now I'm realizing I may have been mistaken.
Just to confirm, is the cos(theta) here the Lambert's cosine law one or the spherical integral one? I was thinking it was the Lambert's cosine law meaning, but you say in the video that it's "to account for the way we parameterize integration", so now I'm realizing I may have been mistaken.