OpenTK HelloCube

using System;
using System.Drawing;
using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL;
 
namespace OpenTKCube
{
	class Program : GameWindow
	{
		#region Cube information
 
		float[] cubeColors = {
			1.0f, 0.0f, 0.0f, 1.0f,
			0.0f, 1.0f, 0.0f, 1.0f,
			0.0f, 0.0f, 1.0f, 1.0f,
			0.0f, 1.0f, 1.0f, 1.0f,
			1.0f, 0.0f, 0.0f, 1.0f,
			0.0f, 1.0f, 0.0f, 1.0f,
			0.0f, 0.0f, 1.0f, 1.0f,
			0.0f, 1.0f, 1.0f, 1.0f,
		};
 
		byte[] triangles =
		{
			1, 0, 2, // front
			3, 2, 0,
			6, 4, 5, // back
			4, 6, 7,
			4, 7, 0, // left
			7, 3, 0,
			1, 2, 5, //right
			2, 6, 5,
			0, 1, 5, // top
			0, 5, 4,
			2, 3, 6, // bottom
			3, 7, 6,
		};
 
		float[] cube = {
			-0.5f,  0.5f,  0.5f, // vertex[0]
			 0.5f,  0.5f,  0.5f, // vertex[1]
			 0.5f, -0.5f,  0.5f, // vertex[2]
			-0.5f, -0.5f,  0.5f, // vertex[3]
			-0.5f,  0.5f, -0.5f, // vertex[4]
			 0.5f,  0.5f, -0.5f, // vertex[5]
			 0.5f, -0.5f, -0.5f, // vertex[6]
			-0.5f, -0.5f, -0.5f, // vertex[7]
		};
 
		#endregion
 
		Matrix4 matrixProjection, matrixModelview;
		float cameraRotation = 0f;
 
		protected override void OnLoad(EventArgs e)
		{
			GL.ClearColor(Color.CornflowerBlue);
			GL.Enable(EnableCap.DepthTest);
			GL.Enable(EnableCap.CullFace);
			GL.EnableClientState(EnableCap.VertexArray);
			GL.EnableClientState(EnableCap.ColorArray);
		}
 
		protected override void OnResize(EventArgs e)
		{
			GL.Viewport(0, 0, Width, Height);
			matrixProjection = Matrix4.CreatePerspectiveFieldOfView((float)Math.PI / 4, Width / (float)Height, 1f, 100f);
			GL.MatrixMode(MatrixMode.Projection);
			GL.LoadMatrix(ref matrixProjection);
		}
 
		protected override void OnRenderFrame(FrameEventArgs e)
		{
			GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
 
			#region Camera
 
			cameraRotation = (cameraRotation < 360f) ? (cameraRotation + 1f * (float)e.Time) : 0f;			
			Matrix4.CreateRotationY(cameraRotation, out matrixModelview);
			matrixModelview *= Matrix4.LookAt(0f, 0f, -5f, 0f, 0f, 0f, 0f, 1f, 0f);
			GL.MatrixMode(MatrixMode.Modelview);
			GL.LoadMatrix(ref matrixModelview);
 
			#endregion
 
			#region Draw cube
 
			GL.VertexPointer(3, VertexPointerType.Float, 0, cube);
			GL.ColorPointer(4, ColorPointerType.Float, 0, cubeColors);
			GL.DrawElements(BeginMode.Triangles, 36, DrawElementsType.UnsignedByte, triangles);
 
			#endregion
 
			SwapBuffers();
		}
 
		[STAThread]
		private static void Main(string[] args)
		{
			using (Program p = new Program())
			{
				p.Run(60d);
			}
		}
 
	}
}