Activating the Pack
Because Minecraft cannot load shader packs on its own, make sure you have launched the game with a compatible shader loader such as Iris or OptiFine, and that the Upaama Shaders archive is placed inside your instance's shaderpacks folder.
1. Load into a world or pause from the main menu, then open Options and select Video Settings.
2. Open the Shaders or Shader Packs menu.
3. Select Upaama Shaders from the list of available packs and confirm your choice so the game reloads the renderer.
4. Return to your world to let the chunks rebuild with the new lighting.
Verifying the Visual Changes
Once back in your world, look around to confirm the shader pack is active rather than running on the internal vanilla fallback:
- Check the ground beneath nearby blocks, trees, and mobs to see realistic cast shadows.
- Look up at the horizon to verify that the atmospheric day or night sky visuals are rendering.
- Visit a nearby river or ocean to confirm the water appears clear with realistic surface effects while your blocks retain their classic vanilla textures.