November 14, 2017, 09:10:34 pm
Hey brodiegeers, welcome.
HDRI for use as environment (360 degree background) textures is not supported in Lumion.
You can load HDR images (.TIF) as 'regular' textures in the 'ColorMap' slot in 'Standard' materials, but it's of limited use as they're simply converted to standard 32-bit textures.
Let us know if there's anything else we can help with.