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The cool thing is that the shot is in the wrong direction. It is the television that shoots a ray into the gun. Of course, there are no other way to do this, bu
by jlouis 14y ago
The cool thing is that the shot is in the wrong direction. It is the television that shoots a ray into the gun. Of course, there are no other way to do this, but it is fun to think about.
Raytracing is the same. The ray is cast in the "wrong" direction in order to figure out from where it came.
- deleted 14y ago[deleted]
- Retric 14y agoTechnically ray tracing refers to both eye-based versus light-based ray tracing. Eye based is most often used because it tends to be faster excluding some minor effects like caustics that are easier to generate from the light source. Though complex scenes may benefit from bidirectional path tracing, which is a combination of both.