Here is How to create renderVar (AOV) with HtoA inside Solaris
For the RAW just use the same Arnold AOV name ( built-in AOV)
For LPE refer to: Light Path Expression AOVS:https://docs.arnoldrenderer.com/display/A5ARP/Light+Path+Expression+AOVs
example for direct put: C[DSV]L and change to LPE, and so on
NB: for Depth Pass,(Z) filter normally should be set to Closest, But I'm getting black Render, so set it to Gaussian (normalized)
Hope the team can tell us How to render Cryptomatte ?
more details here: https://www.youtube.com/watch?v=DDa-0VFXz8E&feature=youtu.be