Shadows are flickering during animation

[corneaandrei]

Hi guys, I am new here and I am trying to solve this problem since yesterday. I need to do an interior animation (walk through) but the shadow are flickering. I want to mention that I have checked some forums and I didn't found a solution. Some people told me to change between Adaptive DMC to Adaptive subdivision . I tried them both, and its the same result.

 

Here you have the animation :

 

http://tutorial-z.com/uploads/animation.rar

 

As lightning I'm using a hdr image, vray sun, and skylight portals at windows.

 

And here you have the setting that I'm using :

 

 

 

I really need to finish this animation and I need to render 1480 frames