Basic Color Material Unreal Engine 4

on

First i am go into create Master material
create material
create VectorParameter Name="Color"
connect VectorParameter Name "Color" to Base color

create constant 
convert constant to Parameter Name="Metallic"
create constant 
convert constant to Parameter Name="Specular"
create constant 
convert constant to Parameter Name="Roughness"
connect Parameter Name="Metallic" to Metallic
connect Parameter Name="Specular" to Specular
connect Parameter Name="Roughness" to Roughness

create VectorParameter Name="Emissive Color"
create constant 
convert constant to Parameter Name="Emissive value"
create Multiply
connect VectorParameter Name "Emissive Color" to Multiply A
connect Parameter Name="Emissive value" to Multiply B

connect Multiply to Emissive Color

Now i am go into create Materialinstance
Color_Met_01
Color = "Red"
Metallic = "0.5"

Color_Met_02
Color = "Red"
Metallic = "1"
Roughness = "0.5"

Color_Met_03
Color = "Red"
Metallic = "0.5"
Roughness = "0.5"
Specular = "1"

Color_Met_04
Emissive Color = "Red"
Emissive value = "10"

Color_Met_05
Emissive Color = "Red"
Emissive value = "50"

Color_Met_06
Emissive Color = "Red"
Emissive value = "500"