Exists 2 variants of shaders
Mobile- add only dinamic shadow and make blocks brighter.
Windows- dinamic shadows, make blocks brighter and add sun rays.
In new versions mobile shaders not work. Please, fix it. Im youtuber and im want shaders, for record beautiful video.
The Render Dragon engine currently does not support third-party shaders. If you would like to see support for third-party shaders, you can add a vote to this thread on the feedback site:
https://feedback.minecraft.net/hc/en-us/community/posts/360077420452-3rd-party-shader-support-for-render-dragon