Thanks to Grimbert Jerome, AOI is likely to soon find its way into POV 3.7.

The attached image, rendered with an experimental version using 
Grimbert's code, shows a /single/ arrangement of two concentric spheres 
(reflected in three mirrors), using aoi to (a) create "windows" in the 
outer sphere that always face the observer, and (b) create the 
luminous-bulb-effect of the inner sphere by modulating the brghtness of 
a texture with ambient finish so that the sphere appears brighter where 
it faces the camera.

Post a reply to this message

Attachments:
Download '_test.png' (141 KB)

Preview of image '_test.png'