Random delete points by threshold

[Follyx]

why this will not work:

 

a scatter sop and a pointwrangle with:

 

if ( rand(@ptnum) > ch('threshold') ) {
removepoint(,@ptnum);
}

 

Hm, still dont see points, neither with a low nor a high threshold value.

deforming_active.hip

[sekow]

no idea, but when you copy that code above into a fresh pointwrangle it works

 

remember rand(@ptnum) gives you value between 0 and 1

Edited December 9, 2015 by sekow

[tjeeds]

You changed your Evaluation Node Path to "../scatter1", this means that any ch() references you make will look to that node instead of the wrangle node itself. So it's looking for a parameter called "threshold" on the scatter, which doesn't exist so it returns 0, thereby deleting all of your points. 

[varun5895]

why this will not work:

 

a scatter sop and a pointwrangle with:

 

if ( rand(@ptnum) > ch('threshold') ) {
removepoint(,@ptnum);
}

This worked for me after inputting it after scatter node , you need to check the Geometry spreadsheet and see the values to insert before removepoint(??,@ptnum); For me it was -0.5 just an average and then played with the threshold . It worked !