mono/MonoGame — pull request #728 by renaudbedard (2012-08-30 02:20:48+00:00)
Title: Don't assume ushort indices, uint are also supported for index buffers

DrawIndexedPrimitives assumed that the index buffer used unsigned shorts. This fix makes it possible to use unsigned integers as well, as the rest of the system supports it.
This resolved a geometry corruption issue in my project.