I connect a Volume Rasterize Attributes node to a Pyro Solver node to create burn, temperature and velocity attributes.

But what value does the Volume Rasterize Attributes node assign to these attributes? I only see the names in the Geometry Spreadsheet -- no values. Can I set them in the Volume Rasterize Attributes node myself or does it just use a default value of 1? Or does the Pyro Solver assign the value to the attribute somewhere?

Edit: actually I think the temperature was created with the Pyro Burst Source node in my setup. I see it has a Source Value Scale of 1.