Author Topic: Bump bSpecular apha channel  (Read 42589 times)

I have a material that has diffuse, specular map (in alpha channel) and normal map.
I want to use B2M iside Unity to automatically generate normal map, but it should keep the specular map.
I'm trying with Bumped Specular shader, but my specular map stored in the alpha channel is ignored.
I don't understand how works the drop-down below the generated textures (where I can choose between 'Source', 'Diffuse', 'Specular', etc.). It should indicate how to use the alpha channel of my source texture, right? But if I set it to specular it doesn't work.
I got a better result setting the drop-down to 'Emissive'.
Could you point me in the right direction?

Thank you.