Texture Transparency Tutorial
This tutorial will show you how to make parts of a texture transparent so that they do not appear in-game.
The only way to fix this, is to modify the 3D model and add a mesh in that area.
Exporting the Texture
Normal Map Blue Channel
The textures transparency is determined by the blue color channel in the textures Normal Map, you can preview this in TexTools as displayed above.
You will want to select the parts that you would like to hide from the piece of gear.
(It is sometimes easier to select an area by using the magic wand tool in the alpha channel which determines color.)
Go to the Blue Channel
Once you have made the selection, switch to the textures blue channel
Color the selection
Color in the parts that were selected earlier black, this will ensure that they are made transparent in-game.
Saving & Importing the Texture
Now that we have colored the parts we want to make transparent black, we save the texture using the same format as the original texture. We then go back to TexTools and hit the Import button.
(For detailed info on how to save the texture in Photoshop, take a look at the Texture Modding Basics Tutorial).