Forums Technical Discussion select ngon with vex

select ngon with vex

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Martin Krol
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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..
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bonsak
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primvertexcount(0, @primnum) > 4
http://www.sidefx.com/docs/houdini/vex/functions/primvertexcount [www.sidefx.com]
Edited by bonsak - Oct. 29, 2017 03:56:07
http://www.racecar.no [www.racecar.no]
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RyuKu
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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 - Dec. 22, 2019 13:09:41

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

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RyuKu
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will think that doing so i'm doing it right
Edited by RyuKu - Dec. 24, 2019 07:39:27

Attachments:
triangles_ngons.JPG (121.4 KB)

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Grendizer
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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
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Alexander_Nguyen
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Not sure but hope it's work with you :P
Edited by Alexander_Nguyen - Oct. 11, 2021 00:04:08

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

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tamte
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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
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Method Studios, NY
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Grendizer
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Oh wow thanks so much Tamte, I didn't know this menu was there!! It's just like XSI yeah!!!
Houdini gamboler
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