Dynamic shadows artifacts

[anonymous_user_c94f194d]

Found easy fix for this.

        FScreenSpaceData ScreenSpaceData = GetScreenSpaceData(ScreenUV);
        float NoL = saturate(dot(ScreenSpaceData.GBuffer.WorldNormal, DeferredLightUniforms.NormalizedLightDirection));    
        Settings.TransitionScale = SoftTransitionScale.z * lerp(0.1, 1.0, NoL);

https://github.com/EpicGames/UnrealEngine/pull/4503