An attempt at the microfacet shading. I have no idea if this is correct but I think it looks okay? Also this was done after completing project 3.

Version without skybox

Final version with skybox

Skybox from a horizontal angle

Another attempt, but its still too dark in some places...

For some reason my directional diffuse lights are backwards. If I multiply by -1 it looks fine but this is what I get if I do the math correctly. Looks kind of cool