Unstructured volume hexahedron shape?

[paulmelis]

Can hexahedrons be non-rectangular (but still convex)? I’m trying to get a cylindrical volume visualized with an unstructured grid, but not really sure if that’s supported?

[johguenther]

I think so, but better set hexIterative=true https://www.ospray.org/documentation.html#unstructured-volume

hexahedron interpolation method, defaults to fast non-iterative version which could have rendering inaccuracies may appear if hex is not parallelepiped

@gregjohnson?

[paulmelis]

Okay, that was a golden tip! I did not see any of the model without that flag, but now at least I can check if I did the grid setup correctly.