11-21-2019, 11:29 PM
Hi Geoff, in "from knots" mode...the forward vector of the matrix comes from the knots, the up vector is the tangent of the spline at that knot, and the right vector is the cross product of the two. Once the vector is formed it is also made orthogonal so that the forward vector is ensured to be 90 degrees from the other vectors.
The Spline Paths operator itself has an "orientation" setting that allows you to set which axis of a particle's transform will be used as that forward vector in the knot. From there you can basically customize the orientation of each knot cross section however you wish.
The Spline Paths operator itself has an "orientation" setting that allows you to set which axis of a particle's transform will be used as that forward vector in the knot. From there you can basically customize the orientation of each knot cross section however you wish.