Orbit or Twist Points Around a Curve

[psicraft]

Hello everyone!

I recently made a setup to achieve magical smoke effect that orbits while moving.

I shaped and animated a bunch of points that move along a custom curve.
I want to make all those points orbit or twist around the original path (curve), something similar to curve force node for POP.

I'm having some difficulties making this happen with VEX.
I would appreciate your help.

Cheers;
 

 

Basic Shape.hip

[Aizatulin]

Hi,

you can capture by xyzdist() for example using an attribute wrangle and the curve as second input. The rotation matrix can be obtained from the curve's tangent.

Basic Shape_mod.hipnc

[harryjameskirby]

Hey @Aizatulin,

Thanks for your insight - I have a similar problem but using volumes. I'm trying to achieve a tornado effect and can achieve a straight tornado pointing up in Y axis, but am struggling to make it follow and rotate around a given curve.  

Any help would be greatly appreciated. Cheers

tornado.hipnc

[Aizatulin]

Hi,

you can use a path deformer on the input geometry for example and apply a volume wrangle to peform a rotation/scale on the density (using an orientation frame on the curve).

 

tornado_path.hipnc

[harryjameskirby]

@Aizatulin awesome thanks so much!