Hola!Creo que había gente que tenía problemas con la global illumination y entre ellos la diferencia entre el modo edición y el playing. Mirad los fix de la p4:

• (http://issuetracker.unity3d.com/issues/graphics-linear-lighting-isnt-consistent-between-editor-and-standalone-player" rel="external nofollow">724426) - Global Illumination: Fix for linear lighting mode looking different between the player and Editor.
• (http://issuetracker.unity3d.com/issues/lighting-looks-much-darker-in-editor-than-in-build" rel="external nofollow">728595), (http://issuetracker.unity3d.com/issues/loadlevel-in-build-causes-baked-lightmaps-to-become-brighter" rel="external nofollow">738173) - Global Illumination: Fix for LoadLevel in the player causing lightmaps to become brighter when in Linear mode.
• (http://issuetracker.unity3d.com/issues/gi-lightmapping-artifacts" rel="external nofollow">765205), (http://issuetracker.unity3d.com/issues/directional-lightmaps-produce-green-slash-white-artefacts-for-specific-scene" rel="external nofollow">734187) - Global Illumination: Fixed brightly coloured (green/red/white/blue) pixels appearing in the directional lightmap caused by interpolation from invalid indirect lightmap data. Note: Need to clear the GI cache and rebake to get the fixed lightmaps.
• (756506) - Global Illumination: Fixed missing Ambient when "Baked GI" is disabled and "Ambient GI" is set to Baked.

 

A mi me daba problemas al pasar entre escenas desde el editor con el play ejecutandose, ya que la iluminacion quedaba toda la escenas casi a oscuras. Pero con el parche sigue ocurriendo igualmente... Saludos