Minecraft, but I soar through 1,000,000,000 blocks with NO LAG (Music Sync)

Have you ever wondered what it would look like to fly through a Minecraft world at high speed with a 256 chunk render distance and everything loads in instantly? I've been obsessed with making this happen, and I've finally found a way.

How long did it take me to make this video?
Keyframing the camera and music sync elements took me about a week. The recording was the hard part. I just can't resist doing 4k 60fps haha. At 256 chunk render distance, my game was crashing even with 50 Gb of ram allocated. I think there may be a memory leak in my mod somewhere, or the bobby mod is unable to unload chunks fast enough when I am moving my player so quickly (I did set the unload timer to 0 sec in the config but that didn't help). At an average of 12 seconds to render each frame, it took about 40 hours of total render time on my PC. Setting an alarm to check on the render throughout the night to see if it crashed made me feel like I'm a parent checking in on a newborn.

I did some back of the napkin math on how many blocks are in this world, and I think it's actually a lot more than 1 billion. A minecraft .mca file is composed of 32x32 chunk regions. The entire world size is 3.68 Gb. Assuming the largest .mca file in my folder was saturated with chunks, I was able to estimate there are 292116 chunks in this world. Then if we use 98,000 blocks per chunk (including air blocks), we arrive at a total of 2.86 x 10^10, or 28,600,000,000 blocks. This is an amplified world, but a good percentage is a lot of air. I think it's safe to say at least 1 billion regular blocks haha. Let me know in the comments if you know a more accurate way I can determine the non-air block count!

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Music:
Anamanaguchi & Flux Pavilion - Dreams [Monstercat Release]
https://www.youtube.com/watch?v=XwBse1pfiWg

Mods Used:
Huge shoutout to the Bobby Mod. Without it the render distance in video would not have been possible with shaders. Try it out for yourself here: https://beta.curseforge.com/minecraft/mc-mods/bobby
My music sync mod: (Sorry not public yet, it's still very buggy)

Shader:
Complementary Shaders V4
https://www.curseforge.com/minecraft/customization/complementary-shaders