Activating the Pack in Iris or OptiFine
Once Candela Shaders is inside your shaderpacks folder and you launch the game with a shader loader such as Iris or OptiFine, load into a world to activate it. Open the pause menu, choose Options, click Video Settings, and open the Shaders screen. You should immediately notice refreshed environmental lighting that keeps a clean vanilla-like appearance alongside clear shadows.
Checking Foliage, Bloom, and Shadows
To verify every visual feature is active, inspect your surroundings during clear daytime weather. Look closely at grass, tree leaves, and nearby plants to see gentle waving animations in motion. Stand beneath a tree canopy or gaze toward the horizon to spot volumetric light shafts, then check a lantern or glowstone block in a dark corner to confirm the subtle bloom softens its glow. If colored glass shadows or light beams appear missing, verify that the weather is clear, the sun is above the horizon, and shadow rendering is enabled inside your shader loader menu.