Replaces original Grass Shader (Game/SwayingGrass Surface) with a new one that supports real-time shading (e.g. point lights). The original shader only seems to allow shadows from the main directional ...

After you are done installing, head over to the Java edition of the game. Now, click on the dropdown menu and check that the list of instances contains Minecraft with Iris Shaders 1.21.11, indicating ...

To change the shader, create a texture pack with a file called menu-shader.fsh. For a few already made shaders, check out this Twitter X thread. This mod also supports some Shadertoy shaders, to use ...