decal looking weird under light

Hi, why is the decal looking weird under the light? I tried rotating/scaling at all angles but still looking like this.


Finally solved this one. I thought it could be the rotation problem and the purple arrow should point towards the wall but it’s not. No matter how I rotate and scale, the decal doesn’t show up.

But from my google search, there is the common problem of decal not showing up and it is indeed the main cause. Once I placed correctly the decal onto the wall and added a point light, the decal shows up correctly. So to fix this, I just have to change the blend mode to dbuffer translucent color.

At first I didn’t notice how my decal didn’t appear and then thinking that the problem lies somewhere else.