The project 'pack.png' to reach 'that landscape' displayed by default in Minecraft finally arrives at the promised land

In the popular game ' Minecraft ', which has sold more than 200 million units , there is a landscape called ' pack.png ' that many users have seen. The project to reach this landscape is 'pack.png', and finally we have reached the desired landscape.

pack.png --The Project
https://packpng.com/

Pack.png --A Search By The Minecraft Community
https://docs.google.com/document/d/1PpZqHWXPLjOsXf_T7uyH4rWuxUMxzBlxvv5gm19P_Z8/

In Minecraft, when you play the game, the 'world' that the player plays is randomly generated. There are 281,474,977,610,656 types of this world, and the player's world is determined by a randomly generated number called the ' seed value '.

When playing Minecraft, the default display on the server selection screen is a very small PNG image 'pack.png' of 128 x 128 pixels. The 'pack.png' project is trying to identify whether the landscape displayed in this 'pack.png' actually exists, and if so, what kind of seed value it has.

The 'pack.png' project was started by YouTuber SalC1 . In the following movie released by SalC1 on January 14, 2020, which seed value world does the scenery of 'pack.png' exist in? I am raising the issue.

The Mystery of the Minecraft pack.png File --YouTube


Markus Persson, aka Notch, the creator of Minecraft, responded to this movie. He updated his Twitter account and said, 'Hahaha! What a challenge! Good luck! I don't remember where this image came from, and I don't think it's a screenshot I took. If I do. If it's a screenshot taken by, this is a screenshot taken at random coordinates with a completely random seed value, because this is my test method, 'tweet the seed value of' pack.png '. Commented that it is unknown.

Haha, wow! What a quest! I hope you pull it off!

I don't remember where that picture came from, and it probably wasn't me who took it.

If it was me, it's a completely random seed, possibly with random coordinates. That's how I test (and look for cool screenshots).

— Notch (@notch) January 14, 2020

In response to Personne's tweet, Minecraft technical director Nathan Adams said, 'I'm sure you've looked into the landscape of this image before. It's a hypothesis, but vaguely. It shouldn't be too difficult to write an iterative program to find out 'likely this seed value', though it may take a long time. ' ..

I think I've looked into this before. Hypothetically it shouldn't be too hard to write a program that iterates likely seeds for a structure that looks vaguely like this, in an old version. Might take a long time though :(

— Nathan Adams (@Dinnerbone) January 14, 2020

The hint about 'pack.png' exists only in a very small PNG image of 128 x 128 pixels, so the project team can only find the seed value by 'analyzing the terrain in the image'. I heard he couldn't.

Now we got people re-creating this image block-for-block. Keep in mind, the only resolution we have for this is 128x128! Pic.twitter.com/z7ENQDodsE

— SalC1 (@ RealSalC1) January 15, 2020

The first thing the team members noticed was 'water' reflected in 'pack.png'. It seems that the direction of the world and the player was specified from here. Next, the coordinates of the point where the landscape exists are roughly identified from the texture of the clouds. From here, various regression algorithms are used to derive the exact position of the block or player, and finally the Z coordinate (Z = 31) of the 'waterfall' block that appears in the image is identified.

Then, the work of collating the coordinate information specified in the work so far with all the existing worlds started. However, since there are 281,474,977,610,656 seed values, the project uses BOINC , a distributed computing platform, to match the entire seed value. Succeeded in narrowing down the worlds that meet the conditions to about 700,000 from the worlds that exist in more than 281 trillion types. The number '700,000' may seem very large, but project members wrote that 'thanks to it, the rest of the search was very easy to complete.'

After 700,000 candidate worlds have been derived, project members will use the program to search for terrain heights that match 'pack.png'. As a result, it turns out that only one seed value finally matches 'pack.png'.

This is real. Pic.twitter.com/lZ7t8N6q1k

— SalC1 (@ RealSalC1) September 5, 2020

The seed value of the world where the same scenery as 'pack.png' exists is ' 3257840388504953787 '. If you enter this number when actually creating a new world, you can reach the same scenery as 'pack.png', so if you are interested, please actually visit.

In addition, a movie that actually visited the same scenery as 'pack.png' has also been released. The scenery of 'pack.png' can be seen from the coordinates of 'X = 49, Z = 0' in the world with the seed value '3257840388504953787'.

Oh look, a hill! --YouTube