We used Corona to simulate an illuminated version of a direction sign we distribute in the UK. The aluminum extrusion based sign arrives to the client's project specification and we manufacture & assemble the illuminated backing before installation on site.
The caustics solver gave us an excellent demonstration of lighting interaction which means we can provide the client with a more accurate idea of how the sign will look in their plans with the correct wall & surface finishes without having to do a large amount of sometimes wasteful prototyping for the sales website images.
Modelled in Solidworks, Rendered in 3DS Max with Corona 10, Post production in Photoshop