Is it possible to get sharp shadow using only one skylight with an HDRI panorama?

I’m testing UE4 to see if I can lit a scene with only one full range HDRI, like vray and corona renderer, but I can’t get sharp shadow from lightmass, even with a very bright sun HDRI and high lightmass resolution, it only gives me blurry shadow. Did I missed something?

Skylight always casts soft shadows, because it doesn’t differentiate the sun in your HDRI map from the rest of the sky. Skylight works pretty much like a projector. It projects the whole image onto your scene. Add a directional light to get hard shadow.

Hi!

With 4.18 it’s possible!!

…high Lightmass setting and post process!

…was sorting my projects and found this:

Lit by a single HDRI…

How???