In article <39048d24@news.povray.org>, "Wolfgang Illmeyer" 
<wol### [at] gmxnet> wrote:

> I'd like to produce some kind of street lamp, but it has some special 
> kind of glass, I can't produce...
> You should not be able to look through it, it should have a white 
> color, and it should let the light through. And if there's light on 
> the other side of the glass shining in the camera's direction, it 
> should be visible on the glass.... (This glass is used in these 
> detective-films, for example; maybe you know these office-doors with 
> the white glass and the black text on it....)

This isn't the best group to ask about this, you would get a better 
response by asking in povray.newusers or povray.advanced-users.
Anyway, this sounds like ground glass. There are several ways you could 
do it, here are the three that I can think of right now:
1: Use a normal scaled very small and a partially transparent pigment, 
and use high anti-aliasing settings. This can be hard to get right, 
though.
2: Use a mostly opaque texture, but use double_illuminate. This requires 
MegaPOV, though.
3: Instead of a texture, use a thin media container with a scattering 
media. This can be slow, especially if you don't use method 3 from 
MegaPOV, but would probably give the best results.

-- 
Christopher James Huff - Personal e-mail: chr### [at] yahoocom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://chrishuff.dhs.org/
TAG Web page: http://tag.povray.org/

Post a reply to this message