internal OpenGLIndexBuffer(GraphicsDevice graphicsDevice,
                            OpenGLBuffer buffer,
                            IndexElementSize indexElementSize,
                            int indexCount,
                            BufferUsage usage,
                            bool dynamic)
     : base(graphicsDevice, indexElementSize, indexCount, usage, dynamic)
 {
     Buffer = buffer;
 }
 internal OpenGLVertexBuffer(GraphicsDevice graphicsDevice,
                             OpenGLBuffer buffer,
                             VertexDeclaration vertexDeclaration,
                             int vertexCount,
                             BufferUsage bufferUsage,
                             bool dynamic)
     : base(graphicsDevice, vertexDeclaration, vertexCount, bufferUsage, dynamic)
 {
     Buffer = buffer;
 }