How to get rid of "KD tree light cache not supported on GPU, switching to hash map light cache" warning?

[JezUK]

I have a scene file which was created years ago for a client which I have to use every now and again. My scene renders out fine but I keep getting this message in the VFB Log (i.e. "KD tree light cache not supported on GPU, switching to hash map light cache.") and I cannot find how to remove it.

I've looked in the Render Settings Dialog box but cannot find anything.

Any ideas?

[hermit.crab]

Your old scene seems to have the currently unavailable light cache type KD tree selected. The warning can be safely ignored. However, since it bothers you, run this command in the Script Listener to manually switch the LC type to Hash Map:

renderers.current.V_Ray_settings.lightcache_type=1

[JezUK]

Thanks Aleksandar, that fixed it