Here is a good standard “studio” set-up that I use often. The HDR Multipler level has been set for a good light level specifically for Neon, so if that’s not what you are using, it may need to be adjusted. If you do a search, there are several good sites for finding free HDRI environments. Once you have an environment, it’s just like making a new material in Rhino. Make a new empty environment, load the HDRI image, adjust the brightness using the HDR multiplier and saving it as a new Rhino environment.
Light Tent White Floor 2k.renv (1016.6 KB)