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Sunday, March 13, 2016

An example of an indirect light

On the top you see a big reflection of the Sun off my not very polished wooden floor.   On the bottom is the view in the opposite direction.   Three interesting points:

1. The secondary light effect is surprisingly (to me) strong and un-diffused.
2. The secondary light effect is achromatic even through it is off a brown floor-- the specular component is achromatic.
3. Note the tertiary effect on the wall by the picture frame.    This would be tough for most renderers.



2 comments:

Bradford James Loos said...

Is it possible that the secondary bounce is achromatic because most of the directional bounced light comes from the wax/polish that is on the floor?

lara said...

Probably for the same reason the strong un-diffused secondary bounce is like that thanks to reflective caustics.