Bonjour.
In a blob
I wanna got one color different of the main.
In a finger the texture of the nail different of the Hand.
but the two texture are always dissolved.

for sample:

//====================================
#default { finish { ambient 0.5}}
#declare T_ongle=texture { pigment {color rgb 1} }
#declare T_doigt=texture { pigment {color rgb <0.8,0.5,0.5> }}
camera { location <0,10,-5> look_at <0,0,0>}
light_source { 0*x color rgb 1 translate <0,40,-20> }

blob {
        threshold 0.60
//--------index
              sphere   { <0.50,-.10,0.0>,0.2,1.2  }           //
(1)
              cylinder { <0.50,   0,  0>,<0,1.5,0>,1.0,1 }     //
(2)
              cylinder { <   0, 1.5,  0>,<0,3,0>,1.0,1 }      //
(3)
              cylinder { <0,3,0>,<1.5,3.8,-.1>,1.0,1.}

//---------reduction des noeuds et faisons des ongles

              sphere { <0.0,-.18, 0.0>,0.5,-0.32 texture {T_ongle
}}
//nail texture
//(1)  index

              sphere { <0.0, 1.5, 0.0>,1,-1 }          //(2)
              sphere { <0.0, 3.0, 0.0>,1,-1 }          //(3)

     texture { T_doigt }  // main texture
     rotate y*-90
     rotate x*60
  }
//======================


The two texture are also blob.

what can I make ?
Thanks !

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