AFAIK, the noise-generator was changed from 3.1 to 3.5,
not to mention the new one added to avoid some "plateaus"
in number-distribution or what-not. I'm not so sure about
thise topic, but I DO know that the new noise-generator is
default in 3.5, and AFAIK you have to set that manually to
overcome the problem, just a #version won't help.

But that's just a guess, so don't blame me if I'm wrong! :-)

Regards,
Tim


--
Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmxde

> /*
> I find the following texture renders markedly differently in 3.5 compared
> with both 3.0.20-10 debian and megapovplus 0.5.0.2.5a-1 (3.1 equivalent),
> which both render the images similarly to each other.
>
> It looks to me like the grade between 0 and 1.0 in the texture map of the
> older versions is quite different to the grade in 3.5 .. for example as
> if one used a linear gradient and the other an exponential one. I hope
> someone understand what I mean.
>
> I don't see this mentioned in the documentation or in the bugs so far
> listed in povray.general or povray.bugreports, or by googling old usenet
> postings.
>
> I haven't played much with 3.5, but have checked that if I use a plain
> pigment it is the same color.
>
> Can someone tell me this is a bug, or is expected behaviour and why? If
> so, how do i figure out how to translate an old-style texture into a new
> one?
>
> I will post images to povray.binaries.images with the subject line
> 'Texture maps different in 3.5 even when using #version'
>
> Simeon
> */
>
> #include "colors.inc"
> #version 3.0
>
> //test.pov
> //bah there is some bug in the 3.5 textures i think
> //Simeon Scott 2003-02-01 ////////////////////////
> //Something like a blue agate.
> /////////////////////////////
>
>
> background
>   { color White }
>
> global_settings
> {
>   ambient_light 0.05
>   assumed_gamma 1
> }
>
> camera
> {
>   location <0, 0, -3>
>   look_at <0, 0, 0>
>   scale 0.2
> }
>
> light_source
>   {  <2, 4, -3> color White scale 0.4 }
>
> #declare Sim_Blue_Agate = texture
> {
>   waves
>   texture_map
>   {
>     [  0.15 pigment { color White }        ]
>     [  1.0  pigment { color <0, 0, 0.3> }  ]
>   }
>   turbulence <10, 10, 0.3>
>   scale 0.1
> }
>
> sphere
>   {  <0, 0, 0>, 0.3 texture {  Sim_Blue_Agate } }

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