With Vivid Radiant Clear installed in your shaderpacks folder alongside Iris or OptiFine, you can enable it directly from your video menu and verify its visual features in your world.
Selecting the Shader Pack
1. Pause your game or start from the main menu, then open Options and select Video Settings.
2. Click the Shaders or Shader Packs button depending on whether you use OptiFine or Iris.
3. Locate Vivid Radiant Clear in the pack list and click it to select it.
4.
Checking That Effects Are Active
Load into a world during daytime to confirm every feature is working. Look closely at nearby trees, tall grass, and leaves; you should see subtle, clean foliage movements instead of static vanilla blocks. Check the ground beneath trees and roofs to spot gentle, soft shadows that create a semi-realistic look while keeping the classic vanilla art style intact. Instead of plain white light, surrounding blocks will display vibrant colored lighting and improved visual clarity.