Technical News in Minecraft Snapshot 21w42a

Ladies and gentlemen with Snapshot 21w42a  we got a bunch of music and other such   things – check out my main update video  right here if you want to hear all about   that – in this video we’ll be going through  the technical changes behind the scenes.  

My name is slicedlime and let’s get right  into it starting with particles. The   light and barrier particles have been  removed. Instead, there’s now a single   particle called block_marker, which renders  a certain texture as a billboard, just like   the old light and barrier ones did. The texture that is rendered is the one  

Used as a particle by the block  model for the state provided,   so there’s a pretty wide range of available  textures even without a resource pack.   This has also been used to fix a parity  issue so that light blocks now show  

Their light levels when viewed in the world. Let’s have a quick chat about resource packs too.   With the change I just mentioned the light block  model has been split up into one version for each   light level state. If you’ve replaced that model  you might want to make a similar change to your  

Pack to make the light display work. There’s also a new item model and texture   for the new music disc. Next we’re going to get into   custom world changes but first I’d like to  ask you to hit the like button – that helps  

The video get shown more across YouTube,  so I really appreciate it. Thank you!   In the previous snapshot, the values for some  fields in surface rules was set to Infinity,   which is not a valid value to be read back  into the game. As such, the vanilla data  

Reference didn’t load. This has now been fixed  – these values are instead around 1.8 * 10^308,   which should be a sufficiently large number. In decorator news, the cave_surface decorator   now has an allow_water boolean field, and  there’s a new decorator called scatter.  

That has an xz_spread field and a  y_spread field and will simply apply   a random offset within those parameters. In the vanilla files, the small_dripstone   configured feature has been removed and  a pointed_dripstone configured feature   has been added instead, which is what uses the  allow_water field and the scatter decorator  

It also uses a new int provider – clamped_normal.  It works just like the float provider with the   same name, and is configured in the same way. In other big news, noise definitions now have   their own folder – simply called worldgen/noise.  Noises defined in other files have been named and  

Moved to their own files in that folder, and are  now simply referenced from those other files.   This also means noise definitions  can be individually overridden by   replacing that file within a datapack. And that’s that for the technical changes  

In 21w42a. Thank you for watching all the  way through this video, I do appreciate it.   And if you liked this video, why  don’t you also check out this one?   There are now some resources that can only be  acquired by trading with a wandering trader.  

So… while you probably never really wanted  it before, there’s now a good reason to try to   get as many wandering traders as possible. So you’ve picked your spot, let’s build it!