"etrask" <et7### [at] yahoocom> wrote:
> I have not checked your code, but perhaps you could try moving the glass
> block upwards very slightly, to make sure there is not a coincident surface
> at the bottom. This could cause the strange dots you see at the top.
>
> But if there is no coincident surface down there, then I am just rambling
> for no apparent reason. =P
>
> I like your picture though, very neat. Only thing I could suggest is perhaps
> to get the glyphs to stand out a bit more.
>
> "Burki" <nomail@nomail> wrote:
> > Hi all !
> >
> >
> > A Mayan stela with the date glyphs of Dec-21-2005.
> >
> >
> >
> > Any idea how to get rid of the silly dots on top of the stela?
> > It is an isosurface with function f_superellipsoid. But these dots also turn
> > up when using a real superelli of the same size and material.
> > Find the code at povray.binaries.scene-files with the same subject name.
> >
> > Comments welcome!
> >
> >
> > Yours,
> > Bu.

I tried to follow etrask's idea and moved the stella a little upward, but
it still persist. I also tried to reduce the accuracy of the
isosurface down to 0.00001, but still the same. I also tried to put a white
plane above the whole scene in case it would come from reflection of the
black sky ...

I just notice that the bottom of the stella renders quite dark.

Maybe someone else can help you. Could it be a numerical artifact (things go
better with a box instead of superllipsoid-like shape)? Anyway, I wonder
why this undesirable effect...

Regards.

    Bruno.

Post a reply to this message