I bought a model from TurboSquid in 3DS format and am trying to load it into an XNA project.
I've exported to FBX and turned ON the "Tangents and Binormals" export options.
If I do not set basicEffect.TexturesEnabled, it renders but without textures. If I turn on TexturesEnabled, though, I have problems:
If I turn off "Generate Tangent Frames" in the content processor, I get "The current vertex declaration does not include all the elements required by the current vertex shader. TextureCoordinate0 is missing." at runtime.
If I turn on "Generate Tangent Frames" in the content processor, I get "Required Vertex Channel TextureCoordinate0 no found" at build time.
So, the question is how to take a model in 3DS, export it so I can use it as an FBX model in XNA and get all of the UV mapping and normals correct. Even the VS2012 FBX preview can render it properly, so it seems like it should have all it needs, but no.