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Quite pleasing!.
"Bill Hails" <bil### [at] europeyahoo-inccom> wrote in message
news:4282738c@news.povray.org...
> Hi, back to basics.
>
> Lathes and procedural textures/materials
>
> 1. I have no idea yet how to mould a handle and a spout
> onto the teapot, but I hope I'll figure something out.
>
> 2. There's something not quite right about the china, too
> "soft"? but I don't know how to improve it.
Your china is porcelain. Heavy duty cafeteria porcelain. Fine bone china is
whiter, thinner and somewhat translucent.
Of course you might have something else in mind, like "the Utah teapot"
http://www.sjbaker.org/teapot/
>
> 3. I'm quite happy with the wood texture, but I could take
> it further.
Nice.
>
> 4. I realise the bubble in the tea looks fake, I'll work more
> on that.
What bubble? ior=1?
The meniscus is nicely modelled.
>
> My big question is, I'd like to get some turbulence and
> variation in the colour of the tea, especially around the
> tea leaves, due to convection, but again I'm at a loss.
Turbulence. Do you mean something like a fractal volume with a lower ior?
Color variation. You're looking to see a pigment density gradient in the
vicinity of the leaves?
What kind of tea is that pink?
Steam/media above the surface?
Apart from the edges where there is a clear color intensity gradient, the
bulk of the tea has a very uniform color.
With a light absorbing medium the intensityyou expect the Beer-Lambert law
to operate
A=ECd where A=-log10(transmission), E is the extinction coefficient, C is
the concentration of the absorbing solute and d is the length of the optical
path.
Given all that, the tea at the bottom of the cup should be darker.
Looking forward to another cup...
DLM
>
> I'd appreciate any helpful criticisms, I can post source
> for the textures if anyone's interested.
>
> --
> Bill Hails
> http://thyme.homelinux.net/
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