I have a rocketship that I’ve built in blender. I have a uv map on it but I want to make it appear metallic. Should I be doing this in blender? or in unity?
Just add a material to your model and mark the shader as Specular. A few of the shaders also have Specular available as an option such as Diffuse Specular (basically a shiny colormap that also takes a normal map which sounds like what you’re trying to go for)
Check this out for more info.
Do it with shaders in Unity.