We have released an update to our Houdini Connection with HDR Light Studio.
It now supports V-Ray, Octane, RenderMan, Redshift, Arnold and Mantra.

HDR Light Studio provides real-time HDR lighting tools for Houdini – HDRI map authoring/editing and HDR Area Lights. To understand what it does, you can find out more here: https://www.lightmap.co.uk/hdrlightstudio/connections/houdini/ [www.lightmap.co.uk]

If anyone would like a license to evaluate, you can email support@lightmap.co.uk and we can get you sorted.
Regards Mark, Co-founder