public PerfectSpecularIndirectMaterial( Color3 Specular )
 {
     this.Specular = Specular.Clamp();
 }
 public LambertianIndirectMaterial( Color3 Color )
 {
     this.Color = Color.Clamp();
     this.RouletteProbability = Math.Max( Math.Max( Color.R, Color.G ), Color.B );
 }