Hi guys, this my first post and i am new to Houdini love this app
i have question : how can i type this in vex so the new point node will understand it
1-$PT/$NPT
1-previous point/point number
the other thing is there website or video talk about the new point node i read the help but i can't find anything like what change and how to replace it. anyway sorry for bothering and for sure i am missing something thank you.
Someone else asked exactly the same thing just a few days ago.
1-float(@ptnum)/@numpt
should work. @ptnum is an integer indicating the current point number; (the first point number is 0). @numpt is an integer indicating the total number of points. The new Point node is just a single-line version of Attribute Wrangle that writes to a single attribute on that line, so any tutorials that cover VEX in Attribute Wrangle should do. There isn't a lot to it for single-line VEXpressions, though, so those tutorials may be more than you need for just this, but Attribute Wrangle is handy too, so it might be worth it anyway. You can also find miscellaneous snippets and tips scattered about on the forum and elsewhere, though it can take some searching to find specific things.
just make sure that's what you want as $PT/$NPT will not return 0-1 number so if you really want num that is 0 for first point and 1 for last you need to use
$PT/($NPT-1)
hence:
@ptnum/(@numpt-1.0)
or if your input is curves and you want 0-1 for each curve you can notice that there is already a preset on Point node for that:
