"Alf Peake" <alf### [at] peake42freeservecouk> wrote in message
news:3ddfc840@news.povray.org...
> Hi
>
> Glad someone else has the same problem :)
> I was reasonably succesful with "blued steel" springs in pov 3.0 and
> 3.1 but 3.5 won't play. With radiosity they tend to have a red cast,
> even using a pigment or reflection with red 0.
>
> You should be able to see the difference here:
>
> http://www.peake42.freeserve.co.uk/pix1/6stix2.jpg  (3.1 and 200k
> sorry)

   Thanks Alf. Very nice, and quite close. A good effort indeed. I
think the word that PoV is missing is the word "Sheen" - and your
"blued steel" term for this particular problem is in fact the right
term. I think I've got the blued steel so far but not the 'sheen' as
yet.

> and stix3v5.jpg, 3.5 and 93k.

    Ah! That's where I've seen it before!  Yes, I can see the
difference, if only slightly.


>
> For 3.5 I used this which still needs working on
> texture{
>     pigment{ rgb <0.2,0.5,0.9>*0.8 } // Adjust for radiosity.
>     finish {
>         brilliance 2
>         diffuse 0.2 // Radiosity doesn't like 0
>         metallic
>         specular 0.5
>         roughness 0.05
>         conserve_energy
>         reflection{ 0.05, 0.3 metallic } // Try <0,0.15,0.3>
>     }
> }

      Very close to some of my settings apart from I haven't put
brilliance or conserve_energy in. (Why didn't I think of brilliance?
Doh!)

      I'll give some of that code a whirl if you don't mind Alf,
thanks again.

     ~Steve~

>
> Alf
>
>
>
>
>

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