GridViewer.CatesianGrid.GetColorBuffer C# (CSharp) Method

        private VertexBuffer GetColorBuffer(string varNameInShader)
        {
            float[] textures = GetTextureCoords(this.GridBlockProperties[this.defaultBlockPropertyIndex]);
            int gridCellCount = this.DataSource.DimenSize;
            int length = gridCellCount;
            VertexBuffer buffer = VertexBuffer.Create(typeof(HexahedronTexCoord), length, VBOConfig.Float, varNameInShader, BufferUsage.StaticDraw);
            unsafe
            {
                IntPtr pointer = buffer.MapBuffer(MapBufferAccess.WriteOnly);
                var array = (HexahedronTexCoord*)pointer;
                for (int gridIndex = 0; gridIndex < gridCellCount; gridIndex++)
                {
                    array[gridIndex].SetCoord(textures[gridIndex]);
                }
                buffer.UnmapBuffer();
            }

            return buffer;
        }