You can play around with the diffuse color until you get the results you want.Not bad, right? You can take this AO pass and throw a wireframe on it for a breakdown in a demo reel or composite it onto the final render in a program like.Rendering AO with Scanline RendererThis next method is a little easier to setup than the first technique, but might not produce the most accurate or flexible results because it's done through the render settings. You can darken this value, the darker this color the less blown out your AO pass is going to be. Of course, it increases render time so you might need to find a happy medium between fast render and good results.If you find that you're getting pretty blown out results go back into your material by selecting the Go to Parent button and select the Diffuse color.
If you run another render you should see right away that the AO pass is much smoother. For this the samples have been bumped up to 256. The higher the samples the smoother the results are going to be.