Why can't the light and shadow mod of my world work?

LZ, light and shadow mod actually consists of two parts:

1) light and shadow pre-installed mod (just know this meaning);

2) Light and shadow materials;

You can't set the light and shadow without installing the light and shadow front component mod.

After installing the light and shadow pre-installed mod, the following options will appear to choose from.

As shown in the figure:

In addition, after installing the light and shadow front assembly,

Then the "Shader Packages" folder will appear (located in ".minecraft\shaderpacks"), which is for us to put light and shadow materials.

As shown in the figure:

(Note: Add new light and shadow materials and put them in this folder, not the original material folder)

If LZ doesn't know how to install it,

Please see the attachment,

The attachment is that you installed forge+ light and shadow+HD repair.

(Because the HD repair mod comes with HD material, you can adjust it yourself in the options, so you can't add other HD materials, and a BUG will appear. )