ForceRender

A minimal client-side Fabric mod for Minecraft 1.21.1 that prevents armor stands and item frames from being frustum-culled when they are within a configurable range. No commands, no tags — just open Mod Menu, tweak the slider, and your furniture stays visible.

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The Problem

Vanilla Minecraft skips rendering entities whose bounding box is outside the camera frustum. Armor stands and item frames have a very small physical box, but custom resource packs (such as those used by ItemsAdder furniture) attach display models that are much larger than that box.

Result: the custom furniture disappears the moment the armor stand's tiny box slides off the edge of the screen, even though most of the model is still clearly visible.

The Fix

ForceRender mixes into EntityRenderer#shouldRender. For every armor stand and item frame within the configured range, it returns true immediately — bypassing the frustum check. Entities outside that range fall back to vanilla behaviour, so performance is only affected near the player.

Settings (Mod Menu)

Open Mod Menu → ForceRender → (gear icon) to access the config screen:

Setting	Description	Default
Force Render	Enable or disable the mod entirely	Enabled
Render Range	Entities beyond this many blocks use vanilla culling	32 blocks

Settings are saved to .minecraft/config/forcerender.properties and can also be edited by hand.

No Mod Menu? The mod still works; just edit forcerender.properties directly.

Installation

1. Install Fabric Loader and Fabric API for Minecraft 1.21.1.
2. (Recommended) Install Mod Menu for the in-game settings screen.
3. Drop forcerender-<version>.jar into your mods/ folder.

Server note: This is a client-side only mod. It is never loaded server-side and does not need to be installed on the server.

Building from Source

Requirements: JDK 21

# One-time: generate the Gradle wrapper binary
gradle wrapper --gradle-version=8.8

# Build
./gradlew build

Output: build/libs/forcerender-<version>.jar

How It Works — Technical Details

EntityRenderer#shouldRender(T entity, Frustum frustum, double cameraX, double cameraY, double cameraZ)

Vanilla logic:

1. Get the entity's getVisibilityBoundingBox() — very small for armor stands.
2. frustum.isVisible(box) → false → entity skipped.

With ForceRender:

1. If mod is disabled → vanilla logic unchanged.
2. If entity is not an ArmorStandEntity or ItemFrameEntity → vanilla logic unchanged.
3. If distance to camera > configured range → vanilla logic unchanged.
4. Otherwise → return true immediately, bypassing the frustum check.

The Mixin is declared in the "client" array of forcerender.mixins.json, so it never runs on a dedicated server.

Compatibility

Minecraft	Fabric Loader	Fabric API	Mod Menu
1.21.1	≥ 0.16.0	0.102.0+1.21.1	≥ 11.0 (opt.)

License

MIT