/// <summary>
/// Invoked when our second control is ready to render.
/// </summary>
private void OnGraphicsControlDraw(object sender, DrawEventArgs e)
{
e.GraphicsDevice.Clear(Color.CornflowerBlue);
// Create the world-view-projection matrices for the cube and camera
var position = ((SceneViewModel) DataContext).Position;
Matrix world = Matrix.CreateFromYawPitchRoll(_yaw, _pitch, 0f) * Matrix.CreateTranslation(position);
Matrix view = Matrix.CreateLookAt(new Vector3(0, 0, 2.5f), Vector3.Zero, Vector3.Up);
Matrix projection = Matrix.CreatePerspectiveFieldOfView(1, e.GraphicsDevice.Viewport.AspectRatio, 1, 10);
// Draw a cube
_cube.Draw(world, view, projection, Color.Red);
}
protected virtual void RaiseDraw(DrawEventArgs args)
{
var handler = Draw;
if (handler != null)
handler(this, args);
}