Huge Shadows Problem [VIDEO]

Video that shows my problem :
https://vimeo.com/191327476

The tutorial I used :

Its the first time that I use real time shadows, And its the firts time that this happens. I really carefully watched the tutorial again and again to try and fix the problem, But nothing worked. I have no clue what is causing this and I need help.

PC specs just in case :

Processor
AMD FX™-6350 Six-Core Processor

Video Card
AMD Radeon HD 6800 Series

RAM
16 GB

Operating System
Microsoft Windows 7 Ultimate Edition Service Pack 1 (build 7601), 64-bit

Huge thanks to anyone who will be able to help me !
(Sorry for the bad english, You guys got a french canadian over here ;P)

It might be old graphics card drivers. Try to update them.

Make sure you did these steps:

  • In Assets folder, select house model, etc, check Generate Lightmap UV’s
  • In Scene, select all geometry (that doesn’t move), mark as Static in top-right
  • In Scene, select sunlight, choose Baking: Realtime, Bounce Intensity: 1, Shadow Type: Soft
  • In Lighting window check Precomputed Realtime GI only
  • Press Bake