Once you have placed the shader pack into your game directory alongside a compatible shader loader such as Iris or OptiFine, you need to activate it through your video menu and verify that its lighting and shadows render properly.
Selecting the Shader Pack
1. Launch Minecraft and load into any singleplayer world or multiplayer server.
2. Press Esc to open the pause menu, then select Options and click Video Settings.
3. Open the Shaders or Shader Packs menu provided by your shader loader.
4. Click Lit Vanila Plus Shaders from the list of available packs and apply your changes.
5.
Checking Shadows and Lighting
Walk outside during daytime to confirm the pack is active. Because this pack keeps classic vanilla colors and core game art untouched, blocks will retain their familiar appearance rather than shifting to unfamiliar color palettes. Look beneath nearby trees, overhangs, and player-built structures to spot clean shadows cast across the ground. Check sunlit terrain across your current biome to confirm improved block depth and brighter, clearer daylight visuals compared to unmodded lighting.