fidos wrote:
> The modification was surprisingly easy : 2 days for a quick and dirty
> implementation without optimisation (only a pure Montecarlo Path Tracing).

So you simply shoot rays in random directions once you hit a surface to 
generate the lighting?

> Here the first acceptable results with a scene from Tim Nikias
> (http://www.nolights.de/).

Yup, I know that scene. ;-)

> The lighting is done with a sky sphere with ambiant set to 20.

How about a different colored skysphere, with a horizon and such? Either 
via a photograph, or just a simple gradient along the y-axis, I'd be 
curious as to how that'd look if the "ground" wouldn't emit white light 
(e.g. just the top dome of the sky-sphere).


> Any comments welcome.

Interesting idea, what are you planning in terms of optimisation? And 
how is your current technique working? Are you shooting several light 
rays per pixel, or are just reiterating the entire scene again and again 
and add up all the results?

Regards,
Tim

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