hill@alanine.cs.unc.edu (Curtis Hill) (02/07/90)
In article <14039@s.ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes: >So, anyone given some thought toward 4D raytracing???? Hmmmm? :-) Glassner, Andrew, Spacetime Ray Tracing for Animation, IEEE Computer Graphics and Applications, March 1988, pp. 60-70. Joe Bob says check it out. Curtis Hill hill@cs.unc.edu
robert@victoria.esd.sgi.com (Robert Skinner) (02/08/90)
In article <11899@thorin.cs.unc.edu>, hill@alanine.cs.unc.edu (Curtis Hill) writes: > In article <14039@s.ms.uky.edu> sean@ms.uky.edu (Sean Casey) writes: > >So, anyone given some thought toward 4D raytracing???? Hmmmm? :-) > > Glassner, Andrew, Spacetime Ray Tracing for Animation, IEEE Computer > Graphics and Applications, March 1988, pp. 60-70. > > Joe Bob says check it out. This doesn't really answer his question though. I assumed Sean meant static 4D objects, whereas Glassner just added time as the fourth dimension to do animation. Of course, Glassner said he just changed a #define for the length of the vector from 3 to 4 and it all worked, so that is at least encouraging. Robert Skinner robert@sgi.com Which is worse, ignorance or apathy? Who knows? Who cares?
cmp7112@sys.uea.ac.uk (N.R. Beadman) (02/08/90)
If you want to trace objects in time, try distributed ray tracing, suggested by Robert Cook in 1984. Nick..... oh Belgium..... Zaphod uttered..