Quote - he problem with pure IBL is that the shadows are awful and unrealistic. Lux does a terrible job of figuring out where the primary light source is even with a really bright sunspot on the HDR. 

I think that Lux actually does a really good job at lighting the scene with the IBl map, but it is true the shadows can be too soft. It's very easy to add a mesh light that is small and therefore creates a sharp shadow. 

This technique was used by a couple of "Skies of Reality" products that were out two years ago.

There is no problem in replicating the technique with Reality's lights today.

Hope this helps 

Paolo

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