SpriteBatch.Begin() making my model not render correctly

Question

I was trying to output some debug information using DrawString when I noticed my model suddenly was being rendered like it was inside-out (like the culling had been disabled or something) and the texture maps weren't applied

I commented out the DrawString method until I only had SpriteBatch.Begin() and .End() and that was enough to cause the model rendering corruption - when I commented those calls out the model rendered correctly

What could this be a symptom of? I've stripped it down to the barest of code to isolate the problem and this is what I noticed.

Draw code below (as stripped down as possible)

        GraphicsDevice.Clear(Color.LightGray);
        foreach (ModelMesh mesh in TIEAdvanced.Meshes)
        {
            foreach (Effect effect in mesh.Effects)
            {
                if (effect is BasicEffect)
                    ((BasicEffect)effect).EnableDefaultLighting();
                effect.CurrentTechnique.Passes[0].Apply();
            }
        }

        spriteBatch.Begin();
        spriteBatch.DrawString(spriteFont, "Camera Position: " + cameraPosition.ToString(), new Vector2(10, 10), Color.Blue);
        spriteBatch.End();

        GraphicsDevice.DepthStencilState = DepthStencilState.Default;
        TIEAdvanced.Draw(Matrix.CreateScale(0.025f), viewMatrix, projectionMatrix);

Answer 1

SpriteBatch will change the following render states. Even if you don't specify any in your Begin call - it will use its own defaults:

GraphicsDevice.BlendState = BlendState.AlphaBlend;
GraphicsDevice.DepthStencilState = DepthStencilState.None;
GraphicsDevice.RasterizerState = RasterizerState.CullCounterClockwise;
GraphicsDevice.SamplerStates[0] = SamplerState.LinearClamp;

When you want to draw 3D models, you will want to set:

GraphicsDevice.BlendState = BlendState.Opaque;
GraphicsDevice.DepthStencilState = DepthStencilState.Default;

And, if your 3D models have wrapping UV coordinates:

GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap;

This information comes from this blog post.

Answer 2

I also had this problem, but the code

GraphicsDevice.DepthStencilState = DepthStencilState.Default;

resolved the problem.