On Jul 19, 2013, at 7:32 AM, Clifford Yapp wrote: > Excellent picture, that helps a lot - yes, I think we agree, as long as that > other paper's assertion that once we're down to Bezier patches we won't have > any "patch internal" shared sub-surface intersection activity without > involving the edges proves to be correct.
It's a shame we have to use Bezier patches at all. I wonder if sorting through the surface tree to find overlapping subregions would be faster (since it's work we already had to do, yes?) than the work to decompose into Bezier patches and back. It'd be sampled, but should be no worse than our ray tracing. Just a thought. The slower this evaluation is, the harder we're going to have to work at optimization later because we're going to ultimately need the evaluation to happen within a couple seconds for most of our sample geometry. Cheers! Sean ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ BRL-CAD Developer mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/brlcad-devel
