Am I replying to the correct thread? I don't know. But I've had the opposite experience to a bunch of people here, having become substantially more busy in my work than I was even just a few months ago, squeezing the SAM temporarily out.
A version of my vector 3d-stuff-as-a-library-for-others was all but finished several months ago, I'll endeavour to get that out, though it still has the awkward limitation of doing rotations with Euler angles only — which may be less efficient and is certainly more limiting than special orthogonals or quaternions. I'm still thinking about smart ways to optimise the reverse face stuff. I need to get something hierarchical or otherwise group-related in there; checking every single face is obviously not the optimal way to proceed. I guess what I'm looking for is some sort of bin-type mapping to the surface of the unit sphere that allows all the points on a particular hemisphere to be isolated from the majority of the points on the opposite hemisphere. Or, you know, something at least a lot like a sphere. Though I'm not sure any sort of lookup into something a lot like a sphere would help much as it'd need to be indexed by a three-tuple. I guess a good broad sweep would be to mark each face according to the visibility of the faces of a bounding box — if a face on the real model points away from the face on the bounding box then it definitely can't be visible if the box face is. Or something like that. I'm going to stop thinking aloud now... On Tue, Aug 4, 2009 at 10:22 AM, Steve Parry-Thomas<morriga...@aol.com> wrote: > I guess when the clocks go back in October SAM users will hibernate over the > winter until next August! > > > > > > > > From: owner-sam-us...@nvg.ntnu.no [mailto:owner-sam-us...@nvg.ntnu.no] On > Behalf Of Ian Spencer > Sent: 04 August 2009 08:04 > > To: sam-users@nvg.ntnu.no > Subject: Re: Hi - just checking > > > > Wow, I just sent the checking mail to see whether something was wrong with > my subscription to the group and it seems it was like poking a stick into a > hornets nest (in a positive sort of way) - over 40 mails in the last few > days on the group. It's just great to see everyone is alive and kicking out > there. > > > > Ian > > > > ----- Original Message ----- > > From: Ian Spencer > > To: sam-users@nvg.ntnu.no > > Sent: Friday, July 31, 2009 4:10 PM > > Subject: Hi - just checking > > > > Not heard anything on the group for quite a while so just thought I would > send a 'test' to check it's not me that's got a problem and say hi to > everyone. > > I know you've all taken your Sam's to the beach and so no activity on the > group. > > > > > > Ian > > > >
