yes- that's the way it works. It 'should' be fine for extending meshes to add coverage- as you are probably just filling in the edges. I usually can get away with using one or two nodes, by selecting the edge polygons and scaling them up- i.e. so they move out from the center. If you really need to edit the mesh extensively then, at this stage, take it into another 3d program like Blender, Mudbox etc to modify the mesh.
As you get more proficient with Polytools, you'll be able do a lot with fewer nodes, as it takes some time to learn how to get the most out of it; I'm sure later versions of ModelBuilder and PolyEdit will allow single-node multi-edit mesh manipulations. On 1 March 2013 09:16, Rich Bobo <[email protected]> wrote: > Hi Marten, > > At your suggestion, I did download "Geometry Tools for Nuke" from > greyangle.com. I played around with the PolyEdit node and found that I > could only make one modification to my object, per PolyEdit Nuke node. For > example, if I select a group of faces, save the selection and transform > them, as soon as I make a new selection, the first selection of faces > returns to its original position. I've found that I can, however, add > another PolyEdit node after the first one and make a new modification. Is > that the way it works? I sent an email to the developer with the same > question. If that is how it works - a single modification per node - then > it seems really cumbersome. It's quite possible that I'm doing something > wrong, though, since it's the first time I've used it and there is very > little documentation on the web site… > > Thanks, > Rich > > > On Feb 28, 2013, at 2:47 PM, Marten Blumen <[email protected]> wrote: > > Model Builder can't edit pre-created meshes. PolyTools can! > > > On 1 March 2013 08:41, Rich Bobo <[email protected]> wrote: > >> Deke, >> >> I have been unable to get ModelBuilder to modify a mesh created by >> PointCloudGenerator. I sent an email to Support a little while ago with the >> object attached so they can see what's going on… Have you tried modifying >> a mesh created by PointCloudGenerator, yet? I can selected any type of >> elements or the entire object, but I get no transformation axes to >> manipulate whatever I've selected. If, however, I create a default shape in >> the same node - a cube, for instance - I have no problem modifying it. I'm >> wondering if the mesh that PointCloudGenerator creates is a particular type >> of geo structure that ModelBuilder is not programmed to handle…? >> >> >> Rich >> >> >> >> On Feb 27, 2013, at 3:25 PM, Deke Kincaid <[email protected]> wrote: >> >> You can plug the pointcloud or mesh generated by it into the geo input of >> the ModelBuilder so you get roughly the same scale. >> >> ----- >> Deke Kincaid >> Creative Specialist >> The Foundry >> Mobile: (310) 883 4313 >> Tel: (310) 399 4555 - Fax: (310) 450 4516 >> >> The Foundry Visionmongers Ltd. >> Registered in England and Wales No: 4642027 >> >> >> On Wed, Feb 27, 2013 at 12:20 PM, Rich Bobo <[email protected]> wrote: >> >>> Marten, >>> >>> Thanks for the reply! I was afraid of that. Oh, well… ;^) And, thanks >>> for the link to Polytools - I'll definitely check them out! The first >>> thing I plan to try, though, is to see how much luck I have extending the >>> mesh with the new ModelBuilder node. I used it for a photo of a house that >>> I wanted to model and re-project and it worked pretty well. This may be a >>> bit more challenging, since the glacier and rocks have a ton of craggy >>> detail, but maybe I can cheat (a lot)! ;^) >>> >>> Thanks, >>> Rich >>> >>> >>> On Feb 27, 2013, at 2:48 PM, Marten Blumen <[email protected]> wrote: >>> >>> Mesh edge clipping is normal - you can use GreyAngle's Polytools, >>> PolyEdit to extend the edges. >>> >>> http://greyangle.com/nuke/docs/geometry/PolyEdit.htm >>> >>> >>> On 28 February 2013 08:08, Rich Bobo <[email protected]> wrote: >>> >>>> Hey all, >>>> >>>> I've finally had a chance to start messing around with the new >>>> PointCloudGenerator node. I'm hoping some of you with more experience in >>>> this area can help me with a couple of things that I don't quite >>>> understand… >>>> >>>> The main question I have deals with point coverage. I have a test clip >>>> I'm using that is shot from a boat, looking onshore at some glacial ice, >>>> with rocky mountains in the background. I can get a lovely CameraTrack, >>>> thanks to all of the available points to track. The parallax is good as the >>>> boat moves up and down and goes slowly past and around the glacier ice. In >>>> the PointCloud Generator, I've tracked points and get a pretty good lock >>>> with points on the foreground ice and on the background rocks. However, I >>>> do not get full coverage of points in the shot. For example, the foreground >>>> ice is truncated on the left hand side at the beginning of the shot (the >>>> boat moves from left to right across the scene, so the footage moves from >>>> right to left). Also, as the boat bobs up and down, it reveals more >>>> truncated points at the top. I never lose coverage on the right of the >>>> frame, however. I can't tell what's happening on the bottom of the frame, >>>> since I am masking out the water that is there. I'm guessing that the lack >>>> of coverage on the left probably has to do with the fact that there are no >>>> prior frames to look at for parallax reference. But, still, a regular >>>> camera track seems to have more coverage. I can't quite wrap my head around >>>> this. Can anyone explain it to me? And, is there a way to do the analysis >>>> to get greater point cloud coverage…? >>>> >>>> I watched the demo video that Steve Wright put together - >>>> https://vimeo.com/54931986 - and his mountains clip happens to be very >>>> similar to my test clip. Looking at his result, I can see that he is also >>>> getting the same sort of clipping - not getting complete coverage of his >>>> scene. So, maybe the rest has to be hand modeled after a mesh is generated? >>>> I mean, in order to do a projection on a mesh derived from the point cloud, >>>> you'd absolutely have to extend it. Is this always a manual process…? >>>> >>>> Thanks for any help! >>>> >>>> Rich >>>> >>>> >>>> Rich Bobo >>>> Senior VFX Compositor >>>> Armstrong-White >>>> http://armstrong-white.com/ >>>> >>>> Email: [email protected] >>>> Mobile: (248) 840-2665 >>>> Web: http://richbobo.com/ >>>> >>>> "I have long been of the opinion that if work were such a splendid >>>> thing the rich would have kept more of it for themselves." >>>> - Bruce Grocott (1940 - ) >>>> >>>> >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> Nuke-users mailing list >>>> [email protected], http://forums.thefoundry.co.uk/ >>>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>>> >>> >>> _______________________________________________ >>> Nuke-users mailing list >>> [email protected], http://forums.thefoundry.co.uk/ >>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> >>> >>> >>> _______________________________________________ >>> Nuke-users mailing list >>> [email protected], http://forums.thefoundry.co.uk/ >>> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >>> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> >> >> >> _______________________________________________ >> Nuke-users mailing list >> [email protected], http://forums.thefoundry.co.uk/ >> http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >> > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users > > > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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