I've been in the industry for a while but never had much love for poking around shaders settings and such. So when it comes to properly explain to our shader programmer the kind of result i would like, i end up not being sure if it makes sense at all.
What i'm trying to achieve for our stylized game is to use the alpha channel of a diffuse map as the specular intensity, with the specular color being linked to the alpha channel of the diffuse map, while still having it react somehow to the scene lighting (because we also use normal map).
Is this technically achievable? Thanks!