: Download and install OptiFine or the Iris Shaders mod for your version of Minecraft.

: Adds depth to builds by creating soft shadows that move with the sun.

The sun used to be a square. It hung in a blocky sky like a pixelated sticker, casting light that knew no nuance, only presence or absence. Shadows were harsh mistakes, black stains under the eaves of a village house where the render engine gave up.

Click and drag the downloaded .zip file into that folder.