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Creating mesh in c# from vertex data problem

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Newbie to DX, so bear with me... I am doing the following: ------------------------------------------------- _trackMesh = new Mesh(300, 900, MeshFlags.Managed | MeshFlags.VbWriteOnly, CustomVertex.PositionNormal.Format, d); CustomVertex.PositionNormal [] vertdata2 = (CustomVertex.PositionNormal[]) _trackMesh.LockVertexBuffer(typeof(CustomVertex.PositionNormal), LockFlags.None); ------------------------------------------------- But, when I look at vertdata2 it reports it''s length as 0. Do I need to explicitly create the vertex buffer for this mesh? How would I do that? Thanks, NerdBoy

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