point expression doesn't work in parameter?

[bluciensky]

 

 

I have a float attribute called "test" that retuns 0-1

If I want to use that attribute value on the parameter on my wrangle, how do I write the expression?

I tried

point("/obj/test", @ptnum, "test", 0)

This expression doesn't error out, but returns the value of point number '0'.

If I write

point("/obj/test", 3, "test", 0)

then it returns the "test" value of point number 3, but it just that @ptnum doesn't work.

What did I miss?

 

[anim]

parameters on wrangle aren't evaluated per point or element

so instead of point() expression on parameter, you need to use point() VEX function in your wrangle code

either as point(1, "test", @ptnum) if the geo is connected to second input for example

or point("op:/obj/testobj/testsop", "test", @ptnum) to reach geometry from any unconnected sop node

(for both examples the sampled geo may possibly have the same pointcount so that @ptnum finds corresponding points, but it's up to you how you want to use it)