[ggt-devel] Re: [vjdev] Moving sphere intersections

[Ben S. <bs...@ia...>]

The first time is the normalized time of first contact and the last time 
is the normalized time of the last moment of contact. So yeah, if they 
completely pass through each other, you will get a 2nd timestamp of less 
than 1.0.

cheers,
-ben

Justin Hare wrote:
> I was looking at the GMTL function (in Intersection.h) that takes 2 
> spheres and 2 paths of the spheres. It then performs intersection tests as 
> if the spheres were moving along these paths.
> 
> The output is the normalized times of the first and second contacts. How 
> is it possible for the spheres to make contact twice, when they are both 
> traveling with constant speed and direction?
> 
> Is the second contact time when they stop intersecting, like if they pass 
> through each other in the timestep?
> 
> 
> -----------------------------------------
> Justin Hare  <ja...@vr...>
> Virtual Reality Applications Center
> Iowa State University, Howe Hall
> http://www.vrac.iastate.edu
> -----------------------------------------
> 
> 
> 
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