It's interesting that sampling on the area of the light source produces clearer, more accurate lighting and shadows than sampling on the hemisphere. This makes sense to me because sampling on the hemisphere, at a high level, is less precise, as it is easier to track the ray when it comes from the light source itself.
It's interesting that sampling on the area of the light source produces clearer, more accurate lighting and shadows than sampling on the hemisphere. This makes sense to me because sampling on the hemisphere, at a high level, is less precise, as it is easier to track the ray when it comes from the light source itself.