I have a "problem" with XNA 4 and spriteBatch. When I draw a rectangle and rotate it, the sides get quite pixelated and look bad: example:
What do I need to do to make the edges look smooth?
spriteBatch.Draw(box, new Rectangle(350, 350, 100, 100), null, Color.Red,MathHelper.ToRadians(65), new Vector2(50, 50), SpriteEffects.None, 0.0F);
EDIT: Found the solution.
As Tetrad's comment suggested, one needs to activate anti-aliasing. Under XNA4.0 you can use this code
GraphicsDeviceManager graphics; graphics.PreferMultiSampling = true; graphics.ApplyChanges();