Wednesday, October 8, 2014

Rendering lunar eclipses

In my googling I came across I lovely piece of work on rendering lunar eclipses by Theodore Yapo and Barbara Cutler.  Here is my favorite part of their results (though not the prettiest-- check the rest out).
Impressive correspondence!  Their online talk is a very nice summary of the work, and they have a good figure for the moon not being Lambertian:
So the BRDF of the moon is more like a stopsign than a sheet of paper.

2 comments:

Pseudonym said...

Wasn't the Oren-Nayar(-Blinn) BRDF meant to model the moon?

Peter Shirley said...

I had forgotten that-- I think you are quite right-- powdery surfaces. There are some nice pix on the wikipedia page: http://en.wikipedia.org/wiki/Oren%E2%80%93Nayar_reflectance_model