How to export a model (from e.g., Blender) to a finite difference grid?

Hoping we can get some help on this. We want to do electromagnetic simulations and need a regular finite difference mesh to do so. We want to be able to export a model (from e.g., Blender) to a finite difference grid and specify the start, stop, and step of each x, y, and z axis.

We tried this with Blender using the re-mesh > blocks modifier. It looks promising, but it does not yield a dense mesh as needed for EM simulations.

We are open to paying for tools, but the ~$15k cost of the big names (Altair, etc.) are out of our reach at the moment.

Thank you in advance for any help or insights!

Are you using ParaView at any point here ?

Hello,

Yes. After EM simulation, a .h5 file will be exported and loaded into ParaView after transforming it to a .vtk file.

Ok, can you share that .vtk file ?