To see the updated lighting and deeper shadows in your world, you must activate the pack through a compatible shader loader such as Iris or OptiFine. Because the pack relies on simple visual tweaks rather than heavy overhauls, loading it takes very little time in game.
Selecting the Pack
1. Load into a world or stay on the main title screen, then open Options.
2. Click Video Settings and open the Shaders or Shader Packs submenu provided by your shader loader.
3. Click the shader pack in the list to highlight it. If it does not appear, open your shaderpacks folder from that menu and verify the pack file is inside.
4. Click Apply or Done to reload the world graphics.
Confirming the Visual Changes
Once back in your world, inspect nearby trees, mountains, or player buildings. You will see deeper shadows along terrain contours and a soft fantasy tone across the landscape. The nostalgic, blocky vanilla look stays intact, and block surfaces react to light without making your screen overly bright or dark. If shadows look cut off at a distance, check your shader loader's render quality sliders and reset them to default.