Forums Technical Discussion select ngon with vex

select ngon with vex

   5094   7   1
User Avatar
Martin Krol
Member
25 posts
Joined: 1月 2014
Offline
 
Hey there guys, quick question

What is the vex equivalent of $NVTX > 4 ?

I need to select ngons inside the group expression node.

I think in the next year I will have to finally sit down and learn me some vex soon as hscript is pretty much out of the picture..
 Report
User Avatar
bonsak
Member
459 posts
Joined: 10月 2011
Offline
 
primvertexcount(0, @primnum) > 4
http://www.sidefx.com/docs/houdini/vex/functions/primvertexcount [www.sidefx.com]
Edited by bonsak - 2017年10月29日 03:56:07
http://www.racecar.no [www.racecar.no]
 Report
User Avatar
RyuKu
Member
171 posts
Joined: 10月 2016
Offline
 
i thought it should be written in probably Wrangle, but i don't know where to look for the counted result and how to highlight or color them in the viewport and if there should be smth else except these strokes?

in groupexpression seems it works, but how to type another variation > 4 ? to create two groupexpressions - one for < 4 and one for >4 ?
Edited by RyuKu - 2019年12月22日 13:09:41

Attachments:
ngons_01_groupexpression.JPG (124.7 KB)
ngons_02_wrangle.JPG (124.1 KB)

 Report
User Avatar
RyuKu
Member
171 posts
Joined: 10月 2016
Offline
 
will think that doing so i'm doing it right
Edited by RyuKu - 2019年12月24日 07:39:27

Attachments:
triangles_ngons.JPG (121.4 KB)

 Report
User Avatar
Grendizer
Member
375 posts
Joined: 5月 2014
Offline
 
Hey guys. Interesting topic but is there a quicker way to select or detect ngons in Houdini? Kind of like XSI's select ngons?
Thanks
Houdini gamboler
 Report
User Avatar
Alexander_Nguyen
Member
21 posts
Joined: 1月 2018
Offline
 
Not sure but hope it's work with you :P
Edited by Alexander_Nguyen - 2021年10月11日 00:04:08

Attachments:
test.hipnc (497.9 KB)
Untitled.png (254.3 KB)

 Report
User Avatar
tamte
Member
8579 posts
Joined: 7月 2007
Online
 
Grendizer
Hey guys. Interesting topic but is there a quicker way to select or detect ngons in Houdini? Kind of like XSI's select ngons?
I'm assuming you are looking for non-procedural way of selecting in the viewport, which would be equivalen to XSI

in that case, while in Primitive Selection Mode
RMB/Select n-Sied Polygons/make your choice (Triangles | Quads | Five-sided or Greater)
Tomas Slancik
FX Supervisor
Method Studios, NY
 Report
User Avatar
Grendizer
Member
375 posts
Joined: 5月 2014
Offline
 
Oh wow thanks so much Tamte, I didn't know this menu was there!! It's just like XSI yeah!!!
Houdini gamboler
 Report
  • Quick Links