public override void DrawGui(LineBatch lineBatch, SpriteBatch spriteBatch)
{
var ray = Camera.GetWorldRay(MousePos);
var plane = new Plane(new Vector3(0, 0, 0), new Vector3(1, 0, 0), new Vector3(0, 1, 0));
float? distance;
ray.Intersects(ref plane, out distance);
if (distance != null)
{
var pos = ray.Position + Vector3.Multiply(ray.Direction, distance.Value);
spriteBatch.AddText(GuiFont, 250, 0, string.Format("X={0:n2} Y={1:n2}", pos.X, pos.Y), Color.White, HorizontalAlignment.Left, VerticalAlignment.Top);
}
}
