Once you have placed the shader pack into your shaderpacks folder alongside a shader loader like Iris or OptiFine, you need to enable it inside your client to see the cartoon visuals and soft lighting.
Enabling the Shader Pack
1. Launch Minecraft and load into a world or stay on the main title screen.
2. Open Options, then click Video Settings.
3. Open the Shaders (or Shader Packs) menu.
4. Select Nimble Radiant Glow from the list and click Done or Apply to reload the renderer.
When your world finishes reloading, you will immediately notice brighter color tones during the day, softer ambient light at night, and a clean cartoon look that keeps default vanilla block textures recognizable.
Tuning Visual Settings
If the radiant bloom or colored lighting feels too strong or too subtle for your monitor, you can adjust the pack directly from the same menu:
1. Return to Options > Video Settings > Shaders.
2. Click the Shader Pack Settings (or Shader Options) button on the screen.
3. Browse the lighting and visual categories to tweak bloom intensity, ambient light levels, or color tones to match your preference.
4. Apply your changes and check a nearby light source, such as a lantern or torch, to verify the soft glow looks comfortable.