Lecture 13: Global Illumination & Path Tracing (115)
AlbertScribblenaut
In the context of this diagram, why can't we just decide the intersection point is to the left of the indicated point on the surface? In other words, why not trace backwards along the direction of ray until we are on the surface? Is the error sufficiently small that this simplification is acceptable?
In the context of this diagram, why can't we just decide the intersection point is to the left of the indicated point on the surface? In other words, why not trace backwards along the direction of ray until we are on the surface? Is the error sufficiently small that this simplification is acceptable?