I have simulation output that I would like to render. The geometry is stored in a sequence of .obj files, and Houdini loads these very easily using the File node.

Now each .obj has a corresponding .txt file containing extra information that I want to use for rendering: a list of vertex indices and brightness values, e.g.

0 .1
1 .2
2 .1
3 .5
4 .6

etc.

What is the easiest way to load this data into Houdini?

if your txt is compatible with .csv format then you can use Table Import SOP to get the values to houdini