How to hitdetection raycast from camera POV

vvvv gamma question
1

hi all,

I am struggling with basic trigonometry here…
trying to create a ray from my camera view direction.
XZ works, but my Y is off.

a normalized direction vector 2d for angle a should be [cos(a),sin(a)]
my guess was that I have a sign or radians mismatch, but when I move my pitch my raycasted spheres jump pretty randomly.

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