Custom Skyboxes

New

• Rifts (/customskyboxes set rift): tear the sky open, with a glowing, crackling edge and another sky showing through (background=).
  • 25 shapes: crack slash tear eye gate circle oval square diamond triangle pentagon hexagon octagon star star6 star8 sparkle sun flower heart cross gear drop blob shatter
  • 14 entrance animations (rift_open rift_unzip rift_burst rift_slash rift_flicker rift_shatter rift_vortex rift_lightning rift_awaken rift_bloom rift_supernova rift_glitch rift_ignite rift_portal) and 14 exits (rift_close rift_zip rift_collapse rift_seal rift_snuff rift_unshatter rift_implode rift_strike rift_slumber rift_wither rift_blackhole rift_glitch_out rift_burnout rift_portal_close)
  • Up to 8 at once with layer=, placed with posX / posY (straight up by default), radius up to 100, 26 named colours or #rrggbb
  • Live effects on an open rift with animate rift: explosion shatter shockwave lightning pulse vortex tremor flare, taking color size strength loop layer delay spin shake glow flash
• GeckoLib models for the sun, the moon, custom layers and rifts: /customskyboxes model set and /customskyboxes model animate. Reads .geo.json and .animation.json itself, so GeckoLib is not needed. Keyframes, catmullrom, easings and Molang are supported; idle plays on its own and play-once animations return to it. Inside a rift the model sits between the background and the edge and is cut to the shape of the hole.
• custom: a sun-like layer (texture or model) that stays at its posX / posY instead of crossing the sky, up to 8 layers.
• Server control with the same command: with the mod on the server, /customskyboxes <set|clear|animate|model|biome|reload> <@a|player> ... sends the command to those players, with full tab completion. What is set is saved and sent again to players who join later or come back. Without the mod on the server nothing changes: it stays a client command.
• model_texture= picks a model's texture by hand; otherwise it is found by name (a file that starts like the model's name counts too).
• Developer API: setRift, animateRift, setModel, playModelAnimation, riftEffects, riftShapes, riftAnimations, models, modelAnimations; SkyboxType.CUSTOM works everywhere the sun and moon do.

Changed

• speed is now gif_speed on textures; speed stays for rain, snow and clouds. Saved skies using the old name are converted.
• animate: the time is optional (animate sky pulse color=RED), and the arguments are offered right after the preset. All 26 colour names work.
• top_merge / bottom_merge use larger, softer noise.
• Mixins use WrapOperation instead of Redirect, so other rendering mods can hook the same places.

Fixed

• Sun and moon textures were drawn turned upside down when placed with posX / posY.
• The black square around the vanilla moon with some renderers and shader packs.

Improved

• Much lighter sky dome: a still dome costs about a quarter of what it did, and with an effect playing (vortex, rotation, pulse…) about a third, so they no longer drop the FPS.
• Entrance and exit animations of the dome are several times cheaper.
• Rift animations move every frame, so they are smooth at any FPS, and rifts are cheaper to draw.