So I am making a scene in cyberix3d and Ive come around on material settings and after applying albedo and specular maps I wanted to give a bit of realistic touch to the texture, so I tried using the reflection skybox and reflection picture, but when I try using the reflection skybox it puts the sky texture on the world and the reflection picture uses like 100% of the texture, when I wanted it to use it like a specular map, using the contrast of black and white.
Also, the engine has support to pbr? If no, it has plans to have it on future? And I saw I can chage the source code, so can I use custom shaders?