4 ms·
Can someone comment on the appeal or utility of a raytracer when path-tracing produces infinitely better results in offline, and real-time path-tracing has star
by fizixer 10y ago
Can someone comment on the appeal or utility of a raytracer when path-tracing produces infinitely better results in offline, and real-time path-tracing has started to appear (and will likely be mainstream in a matter of years)?
Also, a path tracer in 100 lines of C++: http://www.kevinbeason.com/smallpt/ http://www.kevinbeason.com/smallpt/
- apeddle 10y agoI'm no graphics programmer but I was under the impression path-tracing is a subset of ray tracing that came out of this paper: http://artis.inrialpes.fr/Enseignement/TRSA/CookDistributed84.pdf http://artis.inrialpes.fr/Enseignement/TRSA/CookDistributed8... Is this not correct?
- ykl 10y agoDistribution ray tracing is not exactly pathtracing. Proper physically correct pathtracing was formulated by James Kajiya in this paper: http://www.cse.chalmers.se/edu/year/2011/course/TDA361/2007/rend_eq.pdf http://www.cse.chalmers.se/edu/year/2011/course/TDA361/2007/...
- elihu 10y agoPath-tracing is basically a different rendering strategy that's built on ray-tracing, so if you write a ray tracer it's not too hard to turn it into a path tracer later. Ray tracers are generally simpler and easier to write; it was probably also easier for the author to fit a ray tracer on a business card.