Tom Melly wrote:
> 
> I'm needing to set a max_gradient for an iso (see underwater image posted to
> bin.img).
> 
> The odd thing is that the max_gradient is only required when I turn on photons.
> Is this a bug or an expected side-effect of using photons?
> 

What do you mean you 'need to' set a max_gradient?

The default max_gradient is 1 and you should set a higher value if the
real maximum gradient is higher no matter if you are using photons or not. 

It can happen that a scene renders all right with a too low max_gradient,
but this is always fairly accidental.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/

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