Selecting the Pack in Video Settings
Because Seconds Before Purge Shaders is a shader pack, your client needs an active shader loader such as Iris or OptiFine to read it from your shaderpacks folder. Once you are on the title screen or paused inside a world, open Options and click Video Settings. Locate the Shaders or Shader Packs button, select Seconds Before Purge Shaders from the list, and confirm your choice to reload the renderer. When you return to your world, you can immediately verify the pack is working by looking for neon visual glitches, eerie colored lighting, and terrain blocks that appear warped and unstable across the biome.
Toggling Effects During Survival Play
While the cursed visual distortions and liminal atmosphere transform exploration, warped blocks can make precision building, parkour, or tight combat harder to read. Instead of digging through menus every time you need clear vision, check your Controls and Key Binds menu when running a loader like Iris, which provides a shortcut key to toggle shaders on and off instantly. Turning the pack off restores standard block edges while you bridge over lava or sort chests, and pressing the toggle again drops your world straight back into its collapsing, glitch-heavy state without restarting your session.