Cool idea. I am 100% of no help with this, but I wanted to say I really like where you are going with this.
On Mon, Jul 7, 2014 at 8:28 PM, Jason S <[email protected]> wrote: > Hi, > > when thinking and looking for ways to retopo, I was wondering if it was > possible to emit static points on a dense surface mesh with the emission > filtered by curvature (more point where there's detail), and then somehow > create a hull out of those points. > > So not polygonizing per say, but 'just' joining particles with triangles. > > After trying to see if I could somehow feed a 'create topo' node with > pointcloud point positions (seems a bit trickier), > > I sniffed around and came across Guillaume's 'Convex Hull' and also > Julian Johnson's implementation JJ_ConvexHull, > > http://julianjohnsonsblog.blogspot.ca/2012/12/convex-hull-using-cgal-library.html > > BUT as the 'Convex' part of their names suggests, the wrapping only > considers the very most outward points of the cloud, > but otherwise seemed to be working very well > (reduced points on the convex parts, with flat polys on concave, also with > the help of EMTools; 'even spaced particles' before filtering) > > So to your knowledge, how how much of a stretch beyond that would it be to > have ICE -*concave*- hulls? > > such as illustrated here (except in 3D) > http://ubicomp.algoritmi.uminho.pt/local/concavehull.html > > and discussed a bit here > http://www.si-community.com/community/viewtopic.php?f=15&t=4132 > > So if doable, although the result surely needs some adjusting (of the then > fewer points), > cutting & symmetrizing, repositionning with the M tool + slide magnet, and > adding/removing afew edges here and there to reflow.. > > But wouldn't it still be (a heck of a lot ) faster than duplicating edges > on a shrinkwrapped model ? > (if not also faster than most retopo tools out there?) > > thanks, > J > > > -- Perry Harovas Animation and Visual Effects http://www.TheAfterImage.com <http://www.theafterimage.com/> -25 Years Experience -Member of the Visual Effects Society (VES)
