libsoy/src/bodies/Sphere.gs is currently drawing using vertex arrays. Change this code to use a VBO (like Box does) in our standard px, py, pz, nx, ny, nz, tx, ty, ux, uy, uz format, though you do do not need to supply texcoords or tangents for this task.

Additionally, remove the subdivisions property and make this value be based solely on the size of the sphere. Use your best judgement and test this against spheres of different sizes to get a size:subdivisions mapping that works.

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When you've done, commit your work and post the resulting changeset url to this task.