lighting newb and getting objects to shadow themselves

logan74k

Hi guys, new to Toolbag here.  I'm looking at imported models and noticing their own geometry isnt blocking light as I'd expect.  For instance inside mouths/in crevices etc. surfaces are lit as though they are fully exposed and outside of the model.  Specifically the light emitted by the HDR sky maps.  
  
Is there a way to correct this?  Other than lighting exclusively using new created lights?  Thanks for any tips.

EarthQuake

The HDR Skylight provides ambient diffuse and specular lighting, and doesn't cast shadows. To get occlusion from the sky light, you can turn on Global Illumination.

Otherwise, be sure to use direct lights, which cast shadows.