> "Fractracer" <lg.### [at] gmailcom> wrote:
>>
>> Is the gradient in this image coorect for you? For this I use gradient x pigment
>> scaled in x by the length of the sphere_swep
>>
>> Lionel.
>
> Help me, please!
> Modify this text:
>
>

  #version 3.7;
  global_settings {
       assumed_gamma 1.0
       max_trace_level 3
  }
  background {rgbt<0.0509, 0.0509, 0.0509, 0>}

#declare Texture = pigment{
	average
	pigment_map{
		[1
		    gradient x+1  // x+1 else we see a demarcation line
		    color_map {
		        [0 color rgbf<0,0,0,0>]
		        [1 color rgbf<1,1,1,0>]
		    }
		    scale x*11 //because 11 points in sphere_sweep
	    ]
	    [2
		    gradient y
		    color_map {
		        [0 color rgbf<0,0,0,0>]
		        [1 color rgbf<1,1,1,0>]
		    }
		    scale y*11
		]
	}
	}
  #declare Material_001_tex =
  texture {pigment {Texture}}
  #declare NurbsCurve_ob =
  sphere_sweep { b_spline 11, //or cubic_spline
       <0.6332,1.591,-2.241>,0.024,
       <1.694,1.468,-1.64>,0.024,
       <2.423,1.241,-0.959>,0.024,
       <2.772,0.5467,0.466>,0.024,
       <1.655,-0.215,1.505>,0.024,
       <-0.1772,-0.4423,1.292>,0.024,
       <-1.707,-0.6573,1.161>,0.024,
       <-1.5,0,0>,0.024,
       <-1,-4.371e-08,-1>,0.024,
       <1,-4.371e-08,-1>,0.024,
       <1.5,0,0>,0.024
       texture{Material_001_tex}
       scale <1,1,1>
       rotate <-2.504e-06,-0,0>
       translate <0.000000, 0.000000, 0.000000>
  }
  object {NurbsCurve_ob}
  light_source {
       <4.08,5.9,-1.01>
       color rgb<1, 1, 1>
  }
  camera {
       location  <0, 0, 0>
       look_at  <0, 0, -1>
       right <-1.6077777759896383, 0, 0>
       up <0, 1, 0>
       angle  49.134343
       rotate  <-27.098163, 46.688390, -0.903519>
       translate <7.481132, 5.343666, 6.507640>
  }

I have modified slightly the pigment, I think it is what you want. There 
is just one problem whith the gradient x which can let appear some 
demarcation line (it is why I wrote /gradient x+1/). Maybe you have to 
modify some parts to obtain the right result.

Lionel




-- 
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