On 03/09/2018 01:55 AM, Ben Melosh wrote:
Yes, I think passing a traction vector would work. I'm not sure how to calculate the traction vector from the output from geo.normal which appears to be a list of vectors? Is there a function to do this?
Yes, it is a list of vectors - normals of the surface. To get vectors tangent to the surface, you can use . There is no function to compute the shear traction.