3 ms·
How is that free though? You have to fire more rays for each moving object. That's not cheap. And the only thing you get is variable accuracy collision detectio
by Retra 9y ago
How is that free though? You have to fire more rays for each moving object. That's not cheap. And the only thing you get is variable accuracy collision detection.
- onion2k 9y agoYou wouldn't have to fire out more rays if you could use the same ones that are used for calculating light bounces.
- simias 9y agoYou'd have to be lucky enough to have a ray of light bouncing in the right position and direction, and you'd have to be clever enough to notice it at the right moment (without slowing down regular light tracing algorithm by adding a billion comparison everywhere to figure out if it matches a motion vector). I don't want to be a naysayer after only considering it for two minutes but it doesn't sound very practical to me.
- vanderZwan 9y agoSounds like it would lead to interesting "not a bug, it's a feature!"-worthy result of clipping through objects in the dark