I downloaded this code sample and integrated it into my game
http://xbox.create.msdn.com/en-US/education/catalog/sample/mesh_instancing
It works with the model that they supplied, but throws and exception whenever I use one of my models.
The current vertex declaration does not include all the elements
required by the current vertex shader. TextureCoordinate0 is missing.
I tried pluging my model into their original source code and same thing.
My model is an fbx from blender and has a texture.
This is the function that throws the error
GraphicsDevice.DrawInstancedPrimitives(
PrimitiveType.TriangleList,
0, 0,
meshPart.NumVertices,
meshPart.StartIndex,
meshPart.PrimitiveCount,
instances.Length
);