FROM THE COMMUNITY COLLECTION

Indirect lighting in bryce MKI

Created by davidbrinnen

I've had my thinking cap on. Trying to think of a way to make it seem like light is bouncing around and interacting with objects within an enclosed space AND not take an eternity to render... So here's a little render box, with a couple of highly coloured walls. The scene is lit predominately with Horo's bluegreymoon.hdr - chosen because it is mostly white. I do like a bit of colour variation, otherwise I suppose a totally white hdr would do or a sphere of point light sources would do just as well. The set up is rather fiddly. For the final render (render time under 12 minutes - but the final image is a bit noisy and some banding I conceed), as I said, I used Horo's hdr at quality 64 with premium effect soft shadows rpp 4. Prior to that, I created a filter for each face of the enclosing box, this filter was made by rendering from the orthoganal views through the walls, ceiling and floor, which were made temporarily transparent and lit only with the two interior light sources. The resluting renders I then applied to "slides" 2d faces which I placed outside the walls of the box and made it so that the walls of the box did not cast shadows. The idea being that by illuminating the box from the outside with IBL the filters would allow light through where the walls were lit by the inner lights making it look like the light from the light bulbs was being evenly scattered by the inner walls. Sort of thing.