"Mick Hazelgrove" <mic### [at] mhazelgrovefsnetcouk> wrote in
news:3d8cb5f1@news.povray.org 

> Attached is a pic with isosurface torii distorted with noise3d and
> filled with meda. There are bright white artifacts at the edges of the
> containers. 

please word-wrap at 76 characters in posts 



-- 
#macro g(U,V)(.4*abs(sin(9*sqrt(pow(x-U,2)+pow(y-V,2))))*pow(1-min(1,(sqrt(
pow(x-U,2)+pow(y-V,2))*.3)),2)+.9)#end#macro p(c)#if(c>1)#local l=mod(c,100
);g(2*div(l,10)-8,2*mod(l,10)-8)*p(div(c,100))#else 1#end#end light_source{
y 2}sphere{z*20 9pigment{function{p(26252423)*p(36455644)*p(66656463)}}}//M

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----- Original Message -----
From: "Mick Hazelgrove" <mic### [at] mhazelgrovefsnetcouk>
> Prob 1 anyone got any idea how to get rid of them

Prob 1 & 3

The following seems to work :

- use a regular torus with a larger inner radius

torus{RMax,RMin*2

- and then clamp the density function

density {function { min(max(fn_X(x, y, z),0),1) }

It must have been a coincident surface problem.
It solves the scaling problem too, and it's faster !

Prob 2 : where do you use eccentricity? All I see is media type 2...

Nice clouds btw. Are you making a POV-Ray version of Gulliver's Travels ?

G.

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Attachments:
Download 'mhmedia2.jpg' (40 KB)

Preview of image 'mhmedia2.jpg'

Hi

Thought I'd cancelled this message! I've managed to solve the problems I had
though I like the clamping function - works a treat!. The pic is going to be
the basis for an image on the phoenix bird, which, I am currently modelling
in Rhino.

Mick

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