Create Attribute Facing A Direction [SOLVED]

[GlennimusPrime]

Just trying some stuff out while I'm learning.. I've managed to have control over where a new attribute is being created, although it's currently using a bounding box set to Y position only.

How would I go about changing this sort of thing from just a Y direction to having control over a vector angle?

hip file attached

Create_Attribute_Facing_Direction.hip

Edited March 23, 2021 by GlennimusPrime

[bunker]

You can "compare" the normals with an arbitrary angle with dot product.
the dot product gives you a number between -1 and 1: from "opposite angles" (=-1) to "parallel angles" (=1)

something like this:

@Cd=0;
if(dot(normalize(chv("angle")),normalize(v@N))>chf("treshold"))@Cd=1;

 

dot.hiplc

[GlennimusPrime]

Perfect, thank you so much @bunker!