I wasted 100 hours to make this

if you're on PC, you can right click and press [ｌｏｏｐ ] for the surprise at the end

[expand description for making-of explanation]

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Each different world you're seeing are Hypixel Skyblock private island built by a single person or a group of people playing together (credits below).

To create this showcase of their islands, I've used the mod Schematica to download their terrain and import them on my private server.

From then on, I've stitched the islands together and created seamless transitions between the various type of terrains. I arranged them so that the linear minecart track would cross the most interesting part of each world.

To synchronize the different on-beat 'events' (fireworks, particles, animal getting yeeten, etc.), I've recorded a version of the video with the builds only, in F3 mode, and put the music on top.
This allowed me to note the coordinates matching to each beat of the song, and use these in-game to place the different beat-synced events triggered by detector rails.

I've re-textured the detector rail as regular rail so the track looks smooth, I've also retextured Nether Quartz Ore block (as it wasn't used in any of the islands) to have a pitch-black color to create the effect at the beginning (and the end) and in the 'ME' transition of the intro.

The minecart was sped up using a Bukkit plug-in, so it could stay at a constant speed throughout the whole track, on any kind of rails (this could probably have been done with command blocks, in retrospect)

I recorded the final version using Replay Mod to be able to get a smooth 60 fps regardless of the heavy shaders (BSL Shaders) and lot of chunk to loads.
Added the music on top, which was then synced with the in-game event, and voilà!

Note: to create the seamless looping video effect, I've made it so that the angle of recording was constant and copied the terrain from the beginning to recreate it at the end of the tracks.
A whole day pass during the video so the time (and therefore color of the sky) is identical because the video started a 05:00am and ended at 05:00am in the next in-game day (manipulated with command blocks)
All this made the first and last frame of the video identical, allowing for a seamless looping experience.

PS: The title was given to the video soon after I released it, because it was one of the least performing video on my channel at the time, so I decided to yolo the thumbnail and title and this was the result

If you have any questions, ask in the comments and I'll do my best to answer :)

Enjoy!
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Credit to the builders or coop-members at the bottom right corner when entering a new island, and in the form of NPCs scattered around them!

/visit (name) in Hypixel Skyblock to visit their islands.
the * (fruit) represent which profile the island is on, since each player can have up to 4 (or 5) profiles

1. alonecreeper
2. daniell214 * raspberry
3. ExorExe * watermelon (+ Lycanrocs / SnorlaxTheBest / Kqbbel / Nasseco)
4. Gqsp x2 * grapes (+ wtfange / Jxlia / Manhal_IQ_ / unflamed)
5. Shtafjord * pear
6. toemiss * apple
7. Vizaims (+ Risuk)
8. AVOC * papaya (+ justvilen)
9. ApfelkuchenLP * pomegranate (+ _FeuerkriegerLP / Grey_erHD)
10. baptiste_lmp * kiwi (+ tehow_11)
11. Phsi * cucumber
12. Yoshiwi * lime (+ Pindarna)
13. Jiyn * mango (+ xHascox / Technoblade / TimeDeo / Fenso)
14. Bobicar (+ JamieDavid1 / Roboninja2468)

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Music: Silk - Giselle (Favoured Nation remix) -    • Giselle - Silk (Favored Nations Remix)  
Twitter:   / portalhubyt