!lag

AI disclosure: This mod's code and description were written with AI assistance, then built, tested in-game, and reviewed by kln.

!lag legacy 3.1.0 (Minecraft 1.8.9, Forge)

First 1.8.9 Forge build of !lag. In-game it is called !lag legacy. Client-side only, for Forge 11.15.1.2318 (Java 8). It has no extra dependencies.

Features

• FPS HUD: a small box in the top right that updates 4 times a second. It hides with F1 or F3, and its scale is adjustable.
• Entity distance culling (default 64 blocks). Players, the Ender Dragon, the Wither, lightning and anything you ride are never culled.
• Name tag culling for mobs (default 48 blocks). Player name tags are always kept.
• Tile entity culling for chests, signs, skulls, banners and similar blocks (default 64 blocks). Beacons and end portals are exempt.
• Particle distance culling: particles farther than 32 blocks are skipped.
• Menu FPS cap (default 60) and unfocused-window FPS cap (default 30). Set either to 0 to keep vanilla behavior.
• Smooth zoom: hold C, and scroll while zoomed to change the strength. Your strength is remembered.
• Settings screen: press Right Shift, or open Mods → !lag legacy → Config. Settings save when you close the screen.
• Config file: config/notlag-legacy.json

Not included: features that rely on the modern renderer in the 26.3 version, such as adaptive render distance, chunk compile budgets, render caches and shader-compatibility mode.

Tested: The build and 16 unit tests pass. On a real Forge 1.8.9 client (software rendering), the game reached the title screen and loaded a singleplayer world. All mixins applied with no errors. The settings screen, FPS HUD and zoom all work.

Not yet tested: real graphics cards, how much FPS the culling actually saves, OptiFine or other mods, and multiplayer servers. Please report any issues.