"GrimDude" <gri### [at] netzerocom> wrote in message
news:39b5507a@news.povray.org...
| This series of images demonstrates the differences within a scene that
| radiosity can make. None of these images has light. RT1 is sans radiosity,
| RT2 is sans radiosity with the ambient value of the ground plane set to 1,
| RT3 is ground plane set to 0 and radiosity on. The ambient_value setting
is
| 0 for all three images. Render time went from 7 minutes, to 49 minutes,
but
| please note the settings.

It is just the color and diffuse finish that is used for calculating the
radiosity of that isn't it?  I don't know if I ever understood for certain
whether ambient was dropped entirely in the MegaPov kind or if the global
ambient of zero was simply a base to start with.  Sort of like making sure
it wasn't anything but a common starting point.
Anyway, about your renders.  The objects are obviously using a high ambient
and yet the change isn't nearly like that of the plane.  I'm not sure what
was being proven here unless it's about ambient being ignored, which as I
just said I've not completely understood.

Bob

Post a reply to this message