I don't think this replies to the intention of the original question.
I understand it as :
[Is there a way to place turbulence on an image map ?]
To which I do not have an answer of the top of my head, but I don't think this
is possible right now. And if as I think it is not, it would really be a very
nice idea.

Cheers,
Al.


Dan Connelly wrote:

> I'd add a small point of clarification.....
>
> 1. Any 2d->3d mapping will involve distortion for anything
>    other than a planar object.... POV simply gives you some
>    choice to which distortion you apply.
> 2. The "object carved from" text comes from the fact POV
>    treats all textures as 3-dimensional fields -- the
>    different mapping techniques are different methods of
>    mapping 2-d space into 3-d space.  This is inherently different
>    from surface->surface mapping techniques ("uv - mapping") employed
>    by renderers with 2-d primitives.... POV doesn't use surface
>    textures, only volume textures.
>
>    For a comparison, Bryce 3d has both 2d and 3d textures,
>    while Ray Dream has 2d textures only (I believe).
>
>    POVTM ( http://www.twysted.net/ ) has a slope-dependent texture
>    option for height fields.  Slope is an inherently 2-d concept...
>    thus this repesents an extension beyond the POV texturing
>    paradign.  But then, when grass grows on a mountainside,
>    it doesn't grow inside the mountain, only on the surface --
>    on mountain-like scales, it's 2d.
>
> Dan
>
> K. Tyler wrote:
> >
> > Paolo Bormida wrote:
> >
> > > Hi all !
> > > I have a (hope not stupid) question....
> > > Is it possible to wrap an image (using an image map texture I suppose)
> > > around an object such a sphere in a way it is not distorted ?
>
> >     Have you tried the map_type option?
> > There are several image mapping types
> > type 0 - planer, type 1- spherical and there is also
> > cylindrical, toroidal, and maybe more I have forgotten.
>
> That's all.
>
> --
> http://www.flash.net/~djconnel/



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