I'm rendering textures on the two surfaces which actually have the same location and position.

In these kind of cases I want to display only one of the textures, while I get following

![enter image description here](https://i.stack.imgur.com/2VjNk.png)

I.e. I want only the texture of first material to be displayed.

So I would like to know where I've to search for solution, should I play with the blending of the materials ?