The manual is a little skim:
No octane texture allows an IES to be loaded apparently.Distribution – The distribution controls the pattern of the light. This can be set to an floattexture and an image or IES file can be loaded.
Thanks
No octane texture allows an IES to be loaded apparently.Distribution – The distribution controls the pattern of the light. This can be set to an floattexture and an image or IES file can be loaded.