There is no need for this negativity. I'm only trying to help to improve this effect.
Official bumpmapping can be only used with sprites, making it impossible to use in basically any project (you can always add hundreds of objects for every tile in background, but this is obviously stupid/crazy idea)
That's why I was so excited to see someone adding different implementation of this effect, and I still am! This is lovely effect and you don't even need to add another object with normal map textures.
But like I said in previous post, to make it fully working you need to fix basically three things:
1. XY coordinates
2. Transparency in objects
3. Area/range of effect
Unfortunately I know nothing about writing fx, tried few times but it's not working with my brain.
Maybe I wasn't clear in my previous post but I pointed out these issues more like suggestions to fix not complains about "this is nice but useless".