Export Vellum soft body sim vertex positions to CSV

[davide445]

As from the title will run a Vellum sim and need to export as CSV or equivalent the position of a subset of the mesh vertex at every frame.

I read about csvoutput TOP but can't figure out how make it work.

[davide445]

I tried to setup a simple sim and use a Csv Exporter node coupled with an Attribute Expression node, seems so far export only the whole mesh position and not the mesh vertex positions, wanted to ask for a hint about how to procede, attached if interested an example project.

Vellum_export_csv.hiplc

Edited November 21, 2022 by davide445

[haggi]

You can use a python node with some simple code to export your data as you can see in the attached image.

[davide445]

As from attached output it comes out all in one row, also not sure if is mapping all the tet vertex.

Apologize for aking trivial things I didn't know Python, I was thinking there is some node in Houdini up to the job.

output.csv

[haggi]

Maybe there is a node in Houdini, but I have node idea which one. Indeed, in the code all points are put into one row. If this is not what you want, you need to be more specific and it runs over all incoming points.