Not managing to get realtime GI smooth, tips welcome!

Unity Engine
1

Okey at this point I feel I’ve read everything there is to know about Lighting stuff in Unity 5 , still can’t get my simple scene to look reasonable.

2104359--137891--not_smooth.jpg
2104359--137891--not_smooth.jpg1890×743 24 KB

I’ve got this simple scene with a single mesh “box room” with the size 11(L) x 6(w) 3(h)

2104359--137892--scene.PNG
2104359--137892--scene.PNG796×590 173 KB

My settings are as followed:
Sunlight:

2104359--137893--light.PNG
2104359--137893--light.PNG783×528 33.2 KB

Lighting:
2104359--137894--lighting.PNG
2104359--137894--lighting.PNG784×645 38.6 KB

Lighting object:
2104359--137895--lighting object.PNG
2104359--137895--lighting object.PNG786×329 21.7 KB

2

And my GI settings:

2104364--137896--my Gi settings.PNG
2104364--137896--my Gi settings.PNG786×531 31 KB

I’ve got “generate Lightmap UV’s” ON

If I’m missing something please let me know, would love to know how I can get GI without ugly smudges.

3

What ugly smudges are you talking about?