It sure would be nice to be able to bake AO and have SSS react to it the same way as it does when you calculate via render-time. Also would be nice to tune it without rendering the whole image.
I imagine there must be a good writeup on it.
You can only render a section of a scene.
Still too bad you can’t use the multiply texture to get nice lighting results with AO and SSS. basically you are forced to use AO and SSS (slow big time) or forget it.
Or is there a node trick?
Maybe you can use render nodes to render out an image using just Ambient Occlusion and another using just SSS and then merge the images back together in the render nodes window?
Well, maybe but SSS takes the AO in account while calculating. That’s great but not great either if you want to bake.