Raimondo Della Calce

Hello, I have a problem with crowd in Solaris. I have a crowd sim I exported from dops with a dop import. Now I try to sop import into solaris, but sop import returns an error "Invalid prim name". I also tried to use a sop crowd import node but it doesn't import anything. Anyone can help me ? Thank You

Ray

Try this file, if you hit render you should see the motion blur. No need to activate velocity motion blur on the geo node

I tested your scene and "mesh deformation blur from velocity attribute" was disabled, if you enable it, it works.
But you can use the standard motion blur (without the trail node), you just need to insert "$FF*10" instead of "$F*10" into the transform node to let houdini evaluate subframes.
Also put a normal node before the transform sop otherwise the cubes look weird but it's because normals make them appear blurred.