Am 30.01.2014 20:24, schrieb Samuel Benge:

> There's something odd going on between the two images you posted: the spheres in
> the UberPOV version are noticeably darker, but the plane is not. Did you change
> the spheres' material settings between renders?

You mean the diffuse spheres, right?

No, that's not odd at all:

- The darkening of the spheres of course comes from the fact that even 
though the cut-off light sources don't contribute much brightness 
individually, they still do contribute a good deal in total.

- The (apparent) non-darkening of the plane comes from the fact that 
here the contribution of the individual light sources isn't just 
affected by the inverse-square distance-based falloff, but also the 
falloff due to the angle of incidence.

If you'd use a "brilliance 0" finish on the plane (causing diffuse 
brightness to be entirely independent of the angle of incidence), the 
darkening effect would be just as visible on the plane as it is on the 
spheres.

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