Experimental code... Do not expect it

Texture map interpolation

#default{ finish { ambient 1 } }
#declare C_STRAND = color rgb <1/2,1/2,1>;

#declare C_CLEAR  = color red 1;
#declare C_GREEN  = color green 1;

#declare T_STRAND = texture { pigment {color C_STRAND} }

#declare T_CLEAR = texture { pigment {color C_CLEAR} }
#declare T_GREEN = texture { pigment {color C_GREEN} }

#declare T1=texture{
	onion texture_map
	{
		colour_space pov
			[0.0 T_STRAND]
			[0.5 T_CLEAR]
			[1.0 T_GREEN]
	}
}

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