blending custom a diffuse map and UE4 Material together

hi,
I have a question about materials and it seems that no one in the forum can help me out.
Basically i’m looking to blend a diffuse map “from DDO” together wihn an Shader
/Material from UE4 together.

For example, i have an diffuse map created in DDO “dirst” and i would like to blend it over my glass material in UE4, so the glass has some dirt on it. For the glass i’m using the simple Glass Shader which is integrated in a lot of the marketplace scenes.

Hey Adik -

Without knowing to much about your actual textures, it should be as simple as importing your DDO texture into the editor as a PNG or TGA and insure that you have setup the masking (alpha values) correctly assuming you wanting to see through the glass. In the default glass shader it would be as simple as adding the dirt mask to the Base Color and multiplying the dirt masks Opacity (Alpha) by the Opacity of the glass shader. You also ultimately want to adjust your specular, metallic and roughness settings as well based on the positioning of your dirt. That ultimately will be what sells the glass shader with dirt on it.

Thank You

Eric Ketchum