VEX101- Implementing A Paper: Hidden Point Removal
Added 2019-04-11 08:00:02 +0000 UTCTime for a small add-on to our VEX101! I've been commuting quite a bit this year and when you find yourself sitting in an express train it can get boring. Luckily Jake Rice pointed me to a few papers, one of which was this one:
In this tutorial we'll implement an algorithm to remove hidden points from an unstructured point cloud. We'll be using a few lines of VEX and a hacky way to generate a convex hull.
Comments
Where do you find similar papers like this one to read about?
bluefire
2022-04-03 15:53:38 +0000 UTCIt should work just using the convex hull node. You can pipe that straight into a point wrangle with just: v@P = v@rest;
Nathan Rosquist
2021-12-18 06:04:36 +0000 UTCHi Mo. I quote Benjamin from the Entagma.com webpage "Is there a way to get this to work with Houdini 18.5 nodes? Tetrahedralize has been removed, so I tried this using the convex hull node as well as tetconform, as that’s what the Houdini 18.5 help recommends, but with no luck. Eventually, I resorted to unhiding tetrahedralize, which works fine, but since it’s been removed I was curious, if there’s a newer, faster node and/or procedure." I have the very same problem. Awesome video!! Thanks a lot!
Guillermo HM
2021-10-24 22:44:16 +0000 UTCcool paper implementation! would love more stuff on point clouds!
Sam Beebe
2021-01-12 06:09:10 +0000 UTCwould love that sloppy math course aswell!!
Simon van den Broek
2019-06-25 21:21:40 +0000 UTCHey Konstantin, thanks - that sounds like a full course to me :) "Intro To Numerical Math". I'm way too sloppy to pull that one off with a straight face. But we're seriously considering an "Intro To Sloppy Math". Seriously. Cheers, Mo
Entagma
2019-05-19 14:59:31 +0000 UTCThank you, Moritz, well done! I would love to see a sequel that gets more in depth about turning mathematical formulas from papers into code!
Konstantin Magnus
2019-05-19 13:12:50 +0000 UTCVery clever technique! Thanks! Can I ask for tutorial about vellum that tears by liquids? Something like this with same speed as in tyFlow if possible: <a href="https://www.instagram.com/p/BvGCadhHB6K/" rel="nofollow noopener" target="_blank">https://www.instagram.com/p/BvGCadhHB6K/</a> I understand how to re-create this in Houdini but it's very slow, is there any ways to optimize this? I interested in the matter of time of solving. Thanks again!
V L Λ Λ M Λ
2019-04-13 08:19:03 +0000 UTCWell in this case a friend pointed me to this. But in general a huge collection of CG papers can be found here: <a href="http://kesen.realtimerendering.com/" rel="nofollow noopener" target="_blank">http://kesen.realtimerendering.com/</a> Cheers, Mo
Entagma
2019-04-12 08:13:23 +0000 UTCvery nice Mo - enjoyed that ,,, Apologies if I missed something - where does one find papers like this??
Chris Johnstone
2019-04-11 19:17:53 +0000 UTC
