CSharpGL.Square.GetVertexAttributeBuffer C# (CSharp) Method

        public VertexBuffer GetVertexAttributeBuffer(string bufferName, string varNameInShader)
        {
            if (bufferName == strPosition)
            {
                if (this.positionBuffer == null)
                {
                    //int length = model.positions.Length;
                    //VertexBuffer buffer = VertexBuffer.Create(typeof(vec3), length, VBOConfig.Vec3, varNameInShader, BufferUsage.StaticDraw);
                    //unsafe
                    //{
                    //    IntPtr pointer = buffer.MapBuffer(MapBufferAccess.WriteOnly);
                    //    var array = (vec3*)pointer;
                    //    for (int i = 0; i < model.positions.Length; i++)
                    //    {
                    //        array[i] = model.positions[i];
                    //    }
                    //    buffer.UnmapBuffer();
                    //}
                    //this.positionBuffer = buffer;
                    // another way to do this:
                    this.positionBuffer = this.model.positions.GenVertexBuffer(VBOConfig.Vec3, varNameInShader, BufferUsage.StaticDraw);
                }
                return this.positionBuffer;
            }
            else if (bufferName == strTexCoord)
            {
                if (this.uvBuffer == null)
                {
                    //int length = model.texCoords.Length;
                    //VertexBuffer buffer = VertexBuffer.Create(typeof(vec2), length, VBOConfig.Vec2, varNameInShader, BufferUsage.StaticDraw);
                    //unsafe
                    //{
                    //    IntPtr pointer = buffer.MapBuffer(MapBufferAccess.WriteOnly);
                    //    var array = (vec2*)pointer;
                    //    for (int i = 0; i < model.texCoords.Length; i++)
                    //    {
                    //        array[i] = model.texCoords[i];
                    //    }
                    //    buffer.UnmapBuffer();
                    //}
                    //this.uvBuffer = buffer;
                    // another way to do this:
                    this.uvBuffer = this.model.texCoords.GenVertexBuffer(VBOConfig.Vec2, varNameInShader, BufferUsage.StaticDraw);
                }
                return this.uvBuffer;
            }
            else
            {
                return null;
            }
        }