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Thread: Random select polygons

  1. #1
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    Random select polygons

    Anyone know if there's a better one than this round?

    https://www.lightwave3d.com/assets/p...random-select/

    - it works fine as long as the polygon count isn't too high; once you pass 100k it doesn't really work anymore.
    - Ignorance is bliss...

  2. #2
    skeptic lertola2's Avatar
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    Here is an easy way to select random points or polygons without a plugin. Just use Jitter. For example if your object is about 2 meters high then jitter it in the y direction 100 meters. Then lasso select some points or polygons. Use the selection info at the bottom left of the window to see if you have selected the number of polygons you want. Then undo. The new selection will remain on the object when it returns to its original shape.
    Last edited by lertola2; 11-11-2017 at 03:25 PM.

  3. #3
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    hmm, I'll try that
    - Ignorance is bliss...

  4. #4

    yes, Modeler = Slow, this could be used, at times

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  5. #5
    skeptic lertola2's Avatar
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    Erikals, It looked like you were having trouble selecting random individual points in your video. You should try the jitter and undo method. I think it is as fast as it possibly can be given that Modeler is very slow with high polygon objects. In the attached image I have a sphere with 98 thousand points. I was able to jitter it, select 2 thousand points and undo in less than 20 seconds. Also by not jittering so much you can get a kind of gradient falloff with the random selection.

    Click image for larger version. 

Name:	jitter_undo.jpg 
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Size:	1.03 MB 
ID:	138584

    Edit: For randomly selecting polygons if you unweld points before you jitter you can avoid having 4 polygon neighbors all being selected together.
    Last edited by lertola2; 11-15-2017 at 08:52 PM.

  6. #6

    yeah, kinda, the thing is what if the object is complex, that's where it gets tricky.

    it's unfortunately tricky either way though...   :/

    EDIT:

    That Said...!   a nice technique!
    Last edited by erikals; 11-15-2017 at 09:25 PM.
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  7. #7
    Try "Select Nth" tool.
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  8. #8

    Heyy! Awesome !

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  9. #9
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    Quote Originally Posted by Lewis View Post
    Try "Select Nth" tool.
    Where is it? - can't find it
    - Ignorance is bliss...

  10. #10

    rait here     (all the way down)
    https://i.imgur.com/71Kek2O.png
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