"spigor" <nomail@nomail> wrote:
> "Cousin Ricky" <rickysttATyahooDOTcom> wrote:
> > "spigor" <nomail@nomail> wrote:
> > > Hello!
> > > I have created an image with a transparent material getting very thin in some
> > > places, and I can see color changes there (marked red in attached). How do I
> > > avoid that?
> >
> > In my experience, transparent surfaces must be separated by at least 0.001 units
> > to avoid such artifacts.
>
> Hi
> Thank you All for your input, it's much appreciated.
> The artifacts disappeared with 0.05 units separation.
>
> spigor

radiosity{
        :
        error_bound 0.05
    }
It looks like the separation must be at least as big as the error_bound.
Reducing the error_bound reduces the size of artifacts but increases the
rendering time.

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