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C.A = C.A * 0.6 + (A.A*0.5+B.A*0.5)*0.4; C.R = C.R * 0.6 + (A.R*0.5+B.R*0.5)*0.4; C.G = C.G * 0.6 + (A.G*0.5+B.G*0.5)*0.4; C.B = C.B * 0.6 + (A.B*0.5+B.B*0.5)*0.4;