public static VertexArray CreateVertexArray(Context context, int positionLocation)
{
Vector4F[] positions = new[] { new Vector4F(0, 0, 0, 1) };
VertexBuffer positionsBuffer = Device.CreateVertexBuffer(BufferHint.StaticDraw, ArraySizeInBytes.Size(positions));
positionsBuffer.CopyFromSystemMemory(positions);
VertexArray va = context.CreateVertexArray();
va.Attributes[positionLocation] = new VertexBufferAttribute(positionsBuffer, ComponentDatatype.Float, 4);
va.DisposeBuffers = true;
return(va);
}