# Rotating repeated Image Texture/ Tile a Texture in 90° increments

I am trying to figure out how to randomly rotate an image texture that I apply to a simple plane. So basically, I have an image of tiles and I would like to have "the duplicates" to rotate randomly by scaling the UV Map.

After some days of researching I found some Videos and Blogs regarding this matter. Unfortunately neither of the proposed solutions were applicable to my problem. Most often, the solution was in regards in how to randomize an image texture over a large plane by rotating it in a random degrees (to tile a texture without repetition > BlenderGurus Video for example). In my case I just want to have the texture rotating in 90° increments. I'm relatively new to Blender and still learning how to use Nodes, so I would appreciate if somebody could help me out or push me into the right direction, maybe even give me an alternative way of to this.

• Multiply by pi/2 to obtain the rotation in radians