Normal map behaving weirdly

[xFlandrex]

Greetings!! 

I'm facing a weird problem with my baked normal maps. When I add them to my object they turn it sort of see through and mess the way the parts interact with each other regarding depth and render ordering (?).  To be honest I have no idea how to describe the problem or what the name of it is to even google it so any input is appreciated!

1. This does not happen in any other program like Blender, Substance Painter or Marmoset.

2. I have checked the face orientation of both the high poly and low poly mesh, it is all facing outwards.

3. The problem appears only after the normal map is added to the faces, however, when I just add the Base Color map, if I toggle Transparency mode in SL (Ctrl+ Alt +T) it's like it has a transparent layer on top of it.

Video for demonstration: 

https://gyazo.com/a96a1725269b8e7b368629bf781d8ee1

Pictures: 

Transparency visibility mode:

The model without any maps:

 

🐪

[Frionil Fang]

A blended texture is a blended texture with all the problems they bring, even if it doesn't actually use the alpha channel and looks opaque. If your object is not meant to have an alpha channel on the base color, upload it without one so it doesn't go into blend mode. You can of course change the material parameters from blended to opaque at any time, essentially discarding the alpha channel at run time.

[xFlandrex]

56 minutes ago, Frionil Fang said:

A blended texture is a blended texture with all the problems they bring, even if it doesn't actually use the alpha channel and looks opaque. If your object is not meant to have an alpha channel on the base color, upload it without one so it doesn't go into blend mode. You can of course change the material parameters from blended to opaque at any time, essentially discarding the alpha channel at run time.

Awesome thanks a lot for the explanation and the solution ! : ) 

Just changing the alpha mode fixed the issue!