On Jun 4, 2012, at 3:57 PM, Tom Browder wrote: > 1. How many adjacent zero points are required to define a hole in a DSP?
Supposed to be just one. The value in the field is the "height" of the displacement, so a zero-value in any 'interior' cell surrounded by non-zero cells should be a hole. That may get screwy with interpolation, but I believe it should still be a hole. > 2. Is it correct to say the DSP is treated implicitly as a BOT? Not at all. It may go through some BoT routines during conversion, but it does an efficient adaptive grid-trace during raytracing. Cheers! Sean ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ BRL-CAD Developer mailing list brlcad-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/brlcad-devel