Hi Gibdion,
I’ve taken a little bit of time and gone through and setup material and applied it to a post process and gotten generally the same effect. It could be tweaked more to get more refined look but tutorial is still applicable.
You will no longer need the opacity in the material though. With the Material Attributes bar (all the inputs) selected you’ll change its Material Domain from Surface to Post Process.
Once you’ve got the material setup you only need to place your Post Process in the level and under the Misc tab in the details panel make sure to add element then attach your NightVision Material here.
If you have any questions feel free to ask!
Here is the images from my setup:
The quality on is kinda low so if you need any help just let me know. I used all the same setup and parameters that were used in the tutorial one.
