animatrix

VEX Rigid Transform SOP

Added 2020-04-18 13:12:25 +0000 UTC

This operator computes a transformation matrix using SVD (Singular Value Decomposition) by looking at the difference between 2 point clouds, which is projected into a rigid transform consisting of a rotation, non-uniform scale and translation. The resulting matrix is then used to transform the input geometry.

You can selectively choose to only transform, rotate, scale, or any other combination.

I will also add options to extract the transformation matrix and its components in the next version, instead of transforming the input geometry.

This operator is immensely useful in production, and I have used it countless times in pretty much all the shows I have worked on.

https://www.dropbox.com/s/5bd7uftfqr33vhx/RigidTransform_SOP_Animatrix.otl?dl=1

Special thanks to Omar Zarifi.