We are trying to reduce texture usage by using a single grayscale image and adjusting the diffuse color to create 4 different colored roof materials.
With just the texture it exports/imports fine with a default gray diffuse color (204,204,204).
But as soon as we add a color ramp node to the material path, it stops exporting the texture. It does export the diffuse color we set in the color ramp though.
Seems like we can only export the texture OR the diffuse color, not both. Any ideas?
EDIT: We discovered that the default gray diffuse color comes from setting the diffuse number value in the Maya texture to 0.8. Changing that value does infact import into Unity, but just as different shades of gray. We are still looking for a way to export a diffuse RGB color.