Just a distant horizons modpack with added 2 shaders preinstalled to pick from and teralith terrain mod. I edited the original mod pack from SysError06 please follow the link for the original if you don't want the mods I added or want a different version of Minecraft or mod loaders. Also there is more information on there if you are having issues with the DH mod that should help.

https://www.curseforge.com/minecraft/modpacks/distant-horizons-iris-shaders

Shaders

1 Bliss. This should be fixed but the shader mod can sometime cause hall of mirrors effect if you turn of DH terrain generation before turning off the shaders first. if you have crashed the renderer please restart the game to fix.

2 BLS

Fabric mod loader version

Requirements: Before we begin, it is mandatory you increase your RAM allocation:

2GB - No, just No - This WILL crash your game, don't bother.

4GB - Minimum - Things will stutter slightly, although anything below 256 chunks should be fine.

6GB - Recommended - This is the optimum amount of RAM for Distant Horizons. This should be perfectly fine for playing with 0 to 20 extra light mods.

10GB - Careful - This much RAM can sometimes be a bad thing for the Java Garbage Collector.

Although DH has gone pretty efficient and less RAM intensive, using anything more than 320 chunks is probably not a good idea. Your RAM will be used up, and the game will start stuttering badly.

It is always a good idea to keep your vanilla render distance relatively low when using Distant Horizons, anything more than 16 is not necessary.

LODs are actually pre generated chunks, but at a lower quality. Even though recent DH versions have drastically sped up the process, it can be very slow, especially when using high render distances.

Any errors that say something about batching world generator timed out are normal, ignore them, hide the chat if they annoy you. Terrain is still loading despite that.

None of the mods in the pack was created by me.

Distant Horizons with Shaders and Teralith terrain mod (ZIII)