Drawing models and sprites.

Hi there.

What do I need to be aware of before jumping into a world or sprite and model pain?! Is there a strict order or can I mix and match as I want?

I’ll need graphics behind and in front of models, would I do this as two sprite begin-end blocks, or does the draw layer come into effect here?

Any pitfalls I should avoid? Any advice before I start?

Many thanks.

It depends, and sorry if its a none answer.
But that’s a fact. For the most part it depends on what you are trying to do and how you do your drawing.
If you want to do some Sprite base drawing to a RenderTarget2D then later do some model draws to another render target then at the end do some more sprite base drawing for GUI then yes you can do it with little hassle.Just at the end render the 2 or more layers over each other to a final screen or render target. Remember that there is no true difference between Sprite drawing and 3D model drawing, Geometry with textures is the life of the GPU.