Create mesh only from vertices?

Become a member of the CGSociety

Connect, Share, and Learn with our Large Growing CG Art Community. It's Free!

THREAD CLOSED
 
Thread Tools Search this Thread Display Modes
  05 May 2008
Create mesh only from vertices?

It is possible, to create a mesh only with its vertex positions?
I do not have any other information about this mesh except maybe vertex and triangle count.

Thanks in advance.
__________________
cheers posativ


German Mental Ray Forum
 
  05 May 2008
If you only have vertex positions without any topological information (number of faces doesn't help too much - it doesn't tell you which vertices those faces are made up from), then you're looking into the topic of "point cloud meshing" (good for a google search, as is "delaunay triangulation" - a specific implementation, and probably "level-set" as well).

Suffice to say that the code involved is fairly complex, especially if the point cloud has concave areas.

One simplistic method of meshing a point cloud, as long as point density is high, is to metaball every point. It won't give you a correct mesh, but it can give you a rough starting point for proper meshing.
 
  05 May 2008
The best thing that I could come up with it was a piece by piece method. Grab a bunch of verts as planer as possible and use the 2D viewport positions to sort them and build a mesh. I never implimented it but I figure you could start slapping bits together at least. Grab a bunch of points align the viewport to them and hit go. It would sort them in to rows and columns and then build a mesh.
__________________
Paul Neale
http://paulneale.com
 
  05 May 2008
Thanks for your replies.

thats to bad, never thought about some topological informations. But it's clear.
__________________
cheers posativ


German Mental Ray Forum
 
  05 May 2008
Thread automatically closed

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.
__________________
CGTalk Policy/Legalities
Note that as CGTalk Members, you agree to the terms and conditions of using this website.
 
Thread Closed share thread



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
CGSociety
Society of Digital Artists
www.cgsociety.org

Powered by vBulletin
Copyright 2000 - 2006,
Jelsoft Enterprises Ltd.
Minimize Ads
Forum Jump
Miscellaneous

All times are GMT. The time now is 04:10 PM.


Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.