Kari Kivisalo wrote:
> 
> > You have to elaborate a bit more on that - the scene renders just fine
> > here and i have no idea what this 'M' is meant for.
> 
> The idea is that M=1 limits all the reflected rays below 1.
> The directly lit area is the brigtest and emits at intensity 1 which
> should be ok even if there is clipping done anywhere.
> 
> M=51 should look equal to M=1 when M=1 image is adjusted to same
> brightness. It doesn't so there is clipping present. You'll notice
> the back wall intensity is clipped to 0.75. The corridor is also
> darker.

Fine but 'M' is not used anywhere in your code - the image will always
look the same.

Christoph

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