In article <39269252@news.povray.org>, "Mick Hazelgrove" 
<mha### [at] redhotantcom> wrote:

> Without knowing exactly what changes were made  from 04 to 05 I 
> really can't say in detail. Also as I don't know how the noise 
> function used to create patterns is generated I can't tell you what 
> parameters I would like to be able to control. All I can say is that 
> media clouds are now much softer and whispier than they were in 04.  
> If what was changed is now made into a variable we can control ...

The only change was modifying of the range of the noise function so it 
fits in the 0-1 range, like it is supposed to. Before, it went outside 
the range and was clipped to the 0-1 range, which caused plateus of 
solid color in pigments and flat areas in height fields, normals, and 
caused big problems in isosurfaces using noise3d().
If you don't want to use the #version flag to get the old version of 
noise, you could probably get a similar effect for pigments by using a 
section of solid color at each end of the color map, something like this:
color_map {
    [0 color StartCol]
    [0.05 color StartCol]
    ...
    [0.95 color EndCol]
    [1 color EndCol]
}

-- 
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/

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