what's the actual calculation to determine if the ray hits the "blob" before hitting the point?
sc2019
Shadow mapping was discussed in Lecture 8, with the specific pseudocode on slide 48. Basically, you precompute a shadow map which stores the distance to the closest object, and when rendering, if the distance between the light and point is greater than the value from the shadow map, then that point is in shadow.
what's the actual calculation to determine if the ray hits the "blob" before hitting the point?
Shadow mapping was discussed in Lecture 8, with the specific pseudocode on slide 48. Basically, you precompute a shadow map which stores the distance to the closest object, and when rendering, if the distance between the light and point is greater than the value from the shadow map, then that point is in shadow.
More specifically, you can start at around the 1:05 mark in the geometric queries lecture
How to account for materials properties which could affect ray reflection?