I can't use shader pack

Originally, even if I used a shader (I used ESBE), it was applied properly and I was able to enjoy a realistic and cool game environment. However, even if the shader is applied from any version, the realistic effect of the shader is not applied, only the texture change effect (normal texture pack) is applied.
I don't know exactly if this is a bug or not, but I would like to be able to enjoy realistic games using shaders. Have a nice day.

 

-Sorry. I don't speak English, so I use Google Translator. Please understand if there is any strange place