The image was rendered in C4D with physical renderer, as you can see, light project on items and cast blur shadow on frosted glass.
I tried some tutorials such as UE4 Tutorial: Milky Glass - fastest and easiest way - aka frosted glass [Unreal Engine 4.18] - YouTube and How to make "Frosted glass"? - Rendering - Unreal Engine Forums
but both of these 2 version didn’t work, error numbers are 1287, 1290, 1291, 1311,1312 and 1698.
After test, I guess the problem is caused by connection between Scenetexture and Emissive Color.
So I check release notes document of UE4.21, which mentioned a bug fix issue: Added custom node validation in order to prevent reading unbound SceneTextureStruct from a base pass shader.
However, I still have same problem in UE4.18.
Is there anyway to achieve this effect? I will be very grateful!