budnhead/org.budnhead/graphics/GLSceneOrientation.cs

using System;

using OpenTK;
using OpenTK.Graphics.OpenGL;

namespace org.budnhead.graphics
{
	public class GLSceneOrientation
	{
		protected Matrix4
						_mCamera,
						_mProjection;

		public GLSceneOrientation()
		{
			_mCamera = Matrix4.Identity;
			_mProjection = Matrix4.CreatePerspectiveFieldOfView(
				MathHelper.PiOver4,
				1.0f,
				50.0f,
				100000.0f
				);
		}

		public Matrix4 mCamera(){
			return this._mCamera;
		}
		public Matrix4 mProjection(){
			return this._mProjection;
		}

		public virtual void setViewport(int width, int height){
			float aspect = width / height;

			_mProjection = Matrix4.CreatePerspectiveFieldOfView(
				MathHelper.PiOver2,
				aspect,
				50.0f,
				100000.0f
			);
		}
	}
}