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Or you can try to increase the adc_bailout.
--
Jonathan.
"Christoph Hormann" <chr### [at] gmx de> ha scritto nel messaggio
news:3BDBEB87.7A000F5D@gmx.de...
>
>
> KalleK wrote:
> >
> > Hi POVers!
> >
> > See scene below.
> > First of all: I know, it's somehow a problem with max_trace_level and
> > my refracting sphere.
> > When I increase max_trace_level, I get less spots, but they don't
> > disappear, not at all.
> > Above max_trace_level 400, Povray crashes, but that's in the docs
> > (3.5docs : 6.11.7 the last paragraph). With m_t_l 400 there are many
> > black areas left.
> > [...]
> > sphere { <0,0,0>, 4
> > pigment {color rgbt 1}
>
> Totally transparent materials are quite seldom in the real world (if they
> were possible, the world would have a max_trace_level problem too ;-), if
> you decrease the transmit value just a little bit, the black spots
> disappear with quite low max_trace_level.
>
> Christoph
>
> --
> Christoph Hormann <chr### [at] gmx de>
> IsoWood include, radiosity tutorial, TransSkin and other
> things on: http://www.schunter.etc.tu-bs.de/~chris/
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