对XNA感到困惑（它只是一个Direct3D包装器吗？）

I have an industrial C#/WPF application written that needs to render thousands of 3D lines. (N.B. these are not a wireframe - they do not necessarily represent a 3D surface, so I don't want to tesselate polygons into triangles, or do lighting a shading, but I I have an industrial C#/WPF application written