I am having issues baking in blender. I'm new to blender so I don't know what I am doing wrong. I have the UV mesh unwrapped and a blank image-texture selected for it to bake to. But whenever I bake it, it always bake as a flat color with no shading. Also, I am only trying to bake the skin. I have tried the bake types, diffuse, normal, and combined and still have the same issue. I've also tried different setups with the nodes. I was able to get a white highlight around the islands of baked UV mesh by playing around with the nodes, however when I imported it into Unity, it showed up completely flat colored just like the ones I did before.