I may have misunderstood entirely your attempt, which is common when
trying to convey things.
The area_light suggestion I made earlier was so that the light being
emitted from within the sphere would blend shadow/light edges of the
sparsely lit irregular spots on the surrounding floor. Now it sounds to
me like you are looking for a more diffuse (in terms of softer spread)
light and I'm not sure how to go about that. In fact, if so, seems to me
the area lights would do okay for this. The other thing I was thinking
would be to have a filtering of the object texture. Meaning, you now
have a sharp edged texture (spiral with color map of .25 to .25 then to
.75 and .75) and using a more blended color map like:

#declare ariadna = texture {
  pigment {
   spiral1 12   //was spiral2
    turbulence 0.8
    //frequency 3
    scale 3
    color_map { //softer edged color map
    [0.225 rgbf <1.0, 1.1, 1.0, 0.0>] //slightly green ???
    [0.25 rgbf <1.0, 1.0, 1.0, 0.5>]  //added
    [0.275 rgbf <1.0, 1.0, 1.0, 1.0>]
    [0.725 rgbf <1.0, 1.0, 1.0, 1.0>]
    [0.75 rgbf <1.0, 1.0, 1.0, 0.5>]  //added
    [0.775 rgbf <1.0, 1.0, 1.0, 0.0>]
  }
    rotate <90,0,0>
  }
}
texture {
  pigment {
    spiral2 12
    turbulence 0.8
    //frequency 3
    scale 3
    color_map { //softer edged color map
    [0.225 rgbf <1.0, 1.0, 1.0, 0.0>]
    [0.25 rgbf <1.0, 1.0, 1.0, 0.5>]  //added
    [0.275 rgbf <1.0, 1.0, 1.0, 1.0>]
    [0.725 rgbf <1.0, 1.0, 1.0, 1.0>]
    [0.75 rgbf <1.0, 1.0, 1.0, 0.5>]  //added
    [0.775 rgbf <1.0, 1.0, 1.0, 0.0>]
  }
    rotate <0,90,0>   }
  finish {Dull}

The slight green I take it may be a mistake? I didn't change it.
Anyhow, this might not be anything that your trying to do, in which case
a fail to understand your need. Sorry if so. Maybe Ken will have a
thought eventually.


Pedro Graterol wrote:
> 
> Ken wrote in message <36EDD25C.BB8A06BE@pacbell.net>...
> 
> >I missed somewhere what the question is. If you would elborate a bit I
> >might be able to offer some help. :)
> >
> The message was sort like this:
> >Is there any way to 'soften' the light
> projected onto the floor? I tried Media, interior and radiosity in global
> settings, but the difference was not relevant.
> > (and )...more lights in order to attenuate the main light, which is inside
> the spheres.
> *Image is in binaries.images. btw ,  a veeeeery simple and non-important
> exercise*
> 
> I would appreciate that.  :-) I was trying to find a way to "soften" the
> lights. It is a main light located inside two  spheres.  Bob Hughes
> recommended to set area_lights and I did. But I did not like the results
> (they were even brighter). Finally, I had to change the floor., they are
> softened -but I did not want to change the floor!.   Thanks in advance
> 
> Marjorie Graterol

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