clipka <ano### [at] anonymousorg> wrote:
> Am 30.11.2017 um 17:14 schrieb And:
>
> > This picture is subsurface material version. When translucency rise. It is not
> >  like cloud enough. I'm not very knowing why. Cause when cloud is not dense it
> > should like be.
>
> My best guess is that it doesn't look anything like clouds because in
> clouds you have a somewhat gradual change in the density of water
> droplets, whereas the subsurface light transport model is designed for
> cases where the density of the scattering agent changes abruptly at a
> well-defined surface.
>
> Directionality of scattering may also play a role (POV-Ray's current
> implementation only supports isotropic scattering), but I don't think it
> matters much in this case.

I can only guess like this

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