Naomi Dommisse

tamte
or just add Point or Attrib Wrangle to your geo with this code
float timestep = 1.0/$FPS;
matrix prevxform = optransform(“..”, @Time-timestep);
matrix xform = optransform(“..”);
vector pos = @P*prevxform*invert(xform);
@v = (@P-pos)/timestep;

it will take object transform for current and previous frame and compute velocity for points from it