How to Draw texture/font and primitives at the same time ?

1

When i Draw a texture2d or a font with spriteBatch and also draw GraphicsDevice.DrawIndexedPrimitives, the frame is draw weird

SpriteBatch  spriteBatch = new SpriteBatch(GraphicsDevice);
BasicEffect basicEffect = new BasicEffect(GraphicsDevice);

protected override void Draw(GameTime gameTime)
{    
    GraphicsDevice.Clear(Color.LightSteelBlue);            
    RasterizerState rasterizerState = new RasterizerState();
    rasterizerState.CullMode = CullMode.None;
    GraphicsDevice.RasterizerState = rasterizerState;

    //for(...) {
    GraphicsDevice.SetVertexBuffer(vertexBuffer);
    GraphicsDevice.Indices = indexBuffer;

    foreach (EffectPass pass in basicEffect.CurrentTechnique.Passes)
    {
        pass.Apply();
        GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, 8, 0, 20);
    }
    // } end for 

    spriteBatch.Begin();
    spriteBatch.DrawString(MainFont, "FPS: " + Math.Round(1 / (float)gameTime.ElapsedGameTime.TotalSeconds, 2), new Vector2(200, 10), Color.Red); 
    spriteBatch.End();

1
1819×637 68.7 KB

How can i solve this ? there is no BasicEffect.Begin() / End() apparently ?

2

solved

        var blendState = GraphicsDevice.BlendState;
        var depthStencilState = GraphicsDevice.DepthStencilState;
        var samplerState = GraphicsDevice.SamplerStates[0];

        // use your SpriteBatch
        spriteBatch.Begin();
        spriteBatch.DrawString(MainFont, "FPS: " + Math.Round(1 / (float)gameTime.ElapsedGameTime.TotalSeconds, 2), new Vector2(200, 10), Color.Red);
        spriteBatch.End();

        // restore device states
        GraphicsDevice.BlendState = blendState;
        GraphicsDevice.DepthStencilState = depthStencilState;
        GraphicsDevice.SamplerStates[0] = samplerState;