Thanks

Is MegaPov free? Where can I get it?

Nekar
Peter Popov <pet### [at] vipbg> wrote in message
news:c7el5tc1ci9jj2lg2mtj4gsn4qk3q81o6c@4ax.com...
> On Tue, 9 Jan 2001 08:34:39 +0200, "J-Print News" <vir### [at] iconcoza>
> wrote:
>
> >I've been trying too figure out if PovRay renders glass correctly or not.
>
> To an extent :)
>
> >If you have a glass sphere that is slightly green (like normal window
> >glass). With most ray tracers and renderers they just map a colour too
the
> >surface of the glass resulting in an even distribution of transparent
green
> >when rendered(like a balloon), with of course refraction added. In real
life
> >the centre of the sphere is actually darker because the light travels a
> >longer distance through the middle of the sphere than near the edge.
>
> In real life glass is green because it absorbs some blue and red. To
> achieve the same effect, make your sphere clear white and add
> it a finish with reflection and specular highlights, of course.
>
> >If PovRay doesn't do this, I think it should be easy too make something
to
> >do this: the longer the distance that the light travels through the
object,
> >the more light is absorbed.
>
> This is exactly what absorbing media does.
>
> You can also use light attenuation which is faster. In official POV it
> is not very accurate, I think, but MegaPOV offers an alternative
> formula which is real-life based.
>
> Note: I may be thining of light fading here but I don't have Mega
> installed yet to check out (did a full reinstall just yesterday).
>
>
> Peter Popov ICQ : 15002700
> Personal e-mail : pet### [at] vipbg
> TAG      e-mail : pet### [at] tagpovrayorg

Post a reply to this message