Accurate Hitboxes

Accurate Hitboxes completely overhauls Minecraft's combat and physics engine by replacing the game's giant, invisible, chunky square hitboxes with true pixel-perfect geometry.

Ever tried to shoot an arrow between a Skeleton's arm and its ribs, only for the arrow to magically freeze in mid-air? Never again.

Core Features

• True Pixel-Perfect Accuracy: The mod mathematically extracts the exact 3D visual geometry of every entity on your screen. If a mob has horns, wings, or a tail, those exact shapes become its physical hitbox.
• 100% Modded Compatibility: Because the hitboxes are dynamically sourced directly from the rendering engine, this mod natively supports all modded mobs and bosses right out of the box with zero configuration required!
• GeckoLib 4 Support: Modded entities powered by GeckoLib (e.g., Naturalist, Alex's Mobs, etc.) get full per-part accurate hitboxes. GeckoLib is detected automatically — no configuration needed, and no crash if it's not installed.
• Sodium & Iris Compatible: Fully compatible with Sodium and Iris shaders. The mod uses a rendering-pipeline-independent extraction system that works regardless of which renderer is active.
• Configurable Whitelist/Blacklist Mode: The config/accuratehitboxes.json file supports a "mode" field that can be set to "blacklist" or "whitelist". In blacklist mode, listed entities are excluded from accurate hitboxes. In whitelist mode, only listed entities receive accurate hitboxes — perfect for large modpacks! The Vanilla Ender Dragon is natively ignored by default to drastically improve multi-part boss interaction. Old configs from v1.1.x are automatically migrated on first launch.
• Dynamic Boss Scaling: The server's built-in combat reach algorithm dynamically scales up to 3x the size of the mob you are fighting. This mathematically guarantees you can physically strike the massively outstretched wings or tails of huge custom dragons without the server falsely rejecting your hits!
• Visual F3+B Debug Tracing: Pressing F3+B actively draws vibrant green geometric boxes tightly wrapped around every physical limb so you can visually verify the mathematical precision of your hits in real-time.
• Flawless Engine Sync: Hitbox caching inherently respects Vanilla Frustum Culling and background Shader passes (Iris/OptiFine), cleanly eliminating frozen "Ghost Hitboxes" that track off-screen during heavy Freecam or Minimap usage!
• Baby Mobs & Custom Scaling: Baby animals and physically scaled entities intelligently calculate and draw miniaturized voxel geometries perfectly glued to their miniature frames, preventing ghost hits above their heads.
• Zero-Lag Singleplayer Support: Arrows and sword sweeps will interact with 100% LIVE swinging arms and walking legs in Singleplayer or LAN worlds with absolutely zero network latency.
• Multiplayer Server Support: On multiplayer Dedicated Servers, the mod perfectly syncs and tracks hitboxes entirely server-side. By utilizing static geometric blueprints combined with dynamic coordinate and rotation tracking, projectiles and arrows enjoy pixel-perfect 3D geometric raycasting natively on the server without causing any server TPS or performance lag.
• Anti-Cheat Safe: The mod includes an automatic server handshake. If you log into a vanilla server that does not have Accurate Hitboxes mod, the mod automatically disables the visual tracking lines and gracefully reverts to vanilla mechanics to ensure you are completely safe from anti-cheat bans.

---

Compatibility

Mod / Loader	Status
Fabric	✅ Fully compatible
Quilt	✅ Fully compatible
NeoForge	✅ Fully compatible
Sodium	✅ Fully compatible
Iris Shaders	✅ Fully compatible
GeckoLib 4	✅ Fully compatible (auto-detected)
Sinytra Connector	✅ Fully compatible (with Forgified Fabric API)
EMF / ETF	✅ Works — green overlay follows vanilla animations rather than custom EMF visual animations (cosmetic only)

Loader Support

This mod is being actively developed and updated! Natively compatible out-of-the-box with Fabric, Quilt, and NeoForge.

• Supports Minecraft 1.20.1, 1.20.2, and 1.20.3

Special Thanks

A massive shoutout and thank you to loti1234567 for initially suggesting the Entity Blacklist configuration feature! Your feedback directly shaped v1.1.0!

Another huge thank you to Crimson_Steve for suggesting the Whitelist mode toggle! Your idea directly shaped v1.2.0!

License & Modpack Policy

All Rights Reserved — Copyright (c) 2026 VortexCombat

1. You may NOT decompile, reverse-engineer, modify, or distribute the source code of this mod.
2. You may NOT steal or reuse any of the code, mechanics, or assets from this mod in your own projects without explicit written permission.
3. You may NOT sell this mod, re-upload it to third-party websites, or distribute it for commercial gain.
4. MODPACK PERMISSION: You ARE explicitly permitted to freely include this mod in any modpack, provided that the mod is downloaded through official channels (e.g., CurseForge, Modrinth).
5. NO LIABILITY: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.