The main point of this pack is that your cape's portal design keeps glowing in the dark. These steps help you make the most of it.
Get your cape visible
1. Equip a movie cape on your account. You can choose it in the skins section of the Minecraft Launcher. Only the portal shapes on movie capes are made to glow.
2. In game, go to Options → Skin Customization and make sure Cape is turned ON. If it is off, nothing shows on your back, glowing or not.
3. Confirm that Emissive Cape Portals is in the Selected column under Options → Resource Packs.
Find the best light
- Caves: Walk away from your torches. The darker the area, the more the glowing portal stands out against the stone.
- Night time: Step outside after sunset, ideally away from lit builds and lanterns.
- Third person: Press F5 once to see your back, or twice to face your character. Turn so the cape faces the camera.
- Screenshots: Press F1 to hide the HUD, then F2 to save a screenshot.
Because the pack only changes the cape, the rest of the cave or night scene looks completely vanilla. Your cape is the only thing glowing, and that contrast is what makes it stand out.