SkyFX

SkyFX: Sky Effects by Commands

SkyFX adds sky effects you trigger with commands. Make the sky turn red with a rift, summon giant eyes, send comets, auroras, blood moons and meteor showers, start an eternal night, or drop a supernova from the sky that explodes. Every connected player sees the effect.

Forge 1.20.1 · Required on the server and on every client (same .jar) · No other mods needed

Language note: the commands and in-game messages are in Spanish (for example /cielo, /ojo3d, /supernovacayendo). This page lists every command so you can use them without translating.

Effects

• Every effect is shown to all connected players. Players who join during an effect receive what is still active.
• While any effect is active, the clouds are hidden. They come back when it ends.
• Each effect has its own sound, at the normal game volume.
• Most effects only change the sky. The supernova orb, the water color and the eternal night also change the world.

Red sky and the rift

• Red spreads from the top of the sky down to the horizon over about 12 seconds.
• A line of light grows overhead, the sky cracks like broken glass, and an opening appears.
• The rift can show a custom image or animated GIF.
• Water turns red and hurts anyone inside it.
• Closing the rift is animated: it tightens, flashes, and the cracks retract.

Eyes

• Small eye: a white Herobrine-style eye with a pupil. It blinks and follows your gaze.
• Eye in the rift: a vertical eye that fills the entire rift.
• 3D eye: a huge eye in the sky with iris, pupil and curved eyelids. It blinks and looks at you.

Celestial events

• Distant star: a sun-like star appears in the sky.
• Supernova: the distant star explodes. The gas shell keeps expanding until it fills the sky, then fades on its own after about 100 seconds.
• Falling supernova: a 3D orb falls from above and stops at height 100 above your position. It hovers there as a real object in the world, so terrain can hide it.
• Comet: a bright head with a light tail crosses the sky in 30 seconds.
• Aurora: green and purple curtains ripple over the horizon.
• Blood moon: a giant red moon in the direction you look.
• Meteor shower: streaks of light cross the sky for 60 seconds.
• Eternal night: the sun disappears and the world becomes real night: light level 0, hostile mobs spawn, the moon is hidden, and the clock stops.

Supernova impact

When the orb explodes:

• A shockwave expands through the world from the explosion point. It can engulf you.
• Players within 300 blocks take a lethal hit. A Totem of Undying in the hand saves them. Everyone else dies.
• Each player’s screen reacts based on distance: the camera shakes, the view zooms briefly, and a ringing tone plays for about 9 seconds.

Commands (operators only, permission level 2)

Every command has a quitar (remove) option where it makes sense.

Red sky and rift: /cielo

/cielo rojo                          red sky and rift
/cielo imagen <archivo>             put an image or GIF in the rift
/cielo sinimagen                     remove the image
/cielo carpeta                       show the image folder and its files
/cielo normal                        close the rift and restore the sky

Images go in config/skyfx/images/ (PNG, JPG, BMP or GIF). GIFs are reduced to at most 60 frames and about 3 MB. Images are cropped to the center to fill the rift.

Eyes

/ojo                                 small eye, overhead
/ojo quitar
/ojo grieta                          red sky, rift, and an eye that fills it
/ojo3d                               3D eye in the sky
/ojo3d quitar

Celestial events

/estrellalejana                      distant star
/estrellalejana quitar

/supernova                           the distant star explodes
/supernova quitar

/supernovacayendo                    falling orb, stops at height 100 above you
/supernovacayendo estallar           explode the orb (lethal hit within 300 blocks)
/supernovacayendo quitar

/cometa                              comet crosses the sky (30 s)
/cometa quitar

/aurora                              auroras over the horizon
/aurora quitar

/lunaroja                            giant red moon, in your look direction
/lunaroja quitar

/meteoros                            meteor shower (60 s)
/meteoros quitar

/nocheeterna                         eternal night (also: /noche eterna)
/nocheeterna quitar                  end it and bring back the day (also: /noche quitar)

Sounds

• The supernova has a 38-second sound with buildup, blast and echo. /supernovacayendo estallar uses the same one.
• /supernovacayendo plays a falling whistle that ends in a low thud.
• /cielo rojo and /ojo grieta play a sound of the sky tearing.
• /ojo, /ojo3d and /lunaroja play an eerie tone.
• /estrellalejana, /meteoros and /cometa play a shimmering star sound.
• /nocheeterna plays a sound of the sun dying out.
• The explosion’s ringing tone plays on each player’s client, louder when closer.
• /aurora has no sound.

Sound files are in assets/skyfx/sounds/: supernova, rift, eye, star, night, fall and ring (OGG Vorbis, mono). Replace them with your own files using the same names, or override them with a resource pack.

Multiplayer

Install the mod on the server (or on the LAN host) and on every client, with the same Forge version. Effects go to every connected player, so one command affects the whole server.

Configuration

There is no config file. The only folder the mod uses is config/skyfx/images/, for images and GIFs in the rift.

Notes

• Red water hurts: while red sky is active, anyone in water loses 1 heart per second. Creative and spectator players are not affected.
• Lethal supernova: warn your players before /supernovacayendo estallar. Without a Totem of Undying, everyone within 300 blocks dies. Only players are affected, not mobs.
• Water color refresh: when red sky starts and ends, the game redraws all loaded chunks, similar to F3+A. This can cause a stutter of a second or two.
• Eternal night changes the clock: always end it with /nocheeterna quitar, or the server stays in night.
• Client-side visuals: most drawing, sound, camera shake and water color happen on the client, so a player without the mod sees nothing.
• Not yet verified in-game: the 3D eye, the falling orb, the water color and the shockwave were built from code and checked only for compilation. Report anything that looks wrong.
• Found a bug? Report it with your Forge version and your mod list.