- "vec4 colour_comp = mix( vec4(0.74,0.53,0.34,shadow), vec4(marble_comp,1.0), circle_factor );"
+ //"vec4 colour_comp = mix( vec4(0.74,0.53,0.34,shadow), vec4(marble_comp,1.0), circle_factor );"
+ "vec4 colour_comp = mix( vec4(0.2,0.2,0.2,shadow), vec4(marble_comp,1.0), circle_factor );"