sam care

Any chance you could post how you got the common tangents? would be super useful on the project I'm on and the vex got my head spinning. cheeers

I'm not sure if this will fix your issue, and I know it's a bit of a late reply, but I was able to get motion blur in c4d/octane (using Houdini exported alembics) by adding a Octane object tag to each object--it won't work on a null-- and then turning on the transform/vertex option. Then turn motion blur on in your octane camera and set your frame rate. Like for 24 fps it would be 1/48. You can mess with the cache to get different results. I only just figured this out myself, but so far found that exaggerating the look gave me the best renders.