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Copycats Sable Light Fix

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Copycats Sable Light Fix

By Glaz_almaz

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This mod fixes incorrect ambient occlusion (AO) / smooth lighting on copycat models (from Create, Create: Extra Copycats, and related mods) when they are rendered inside Sable sub-levels.

Mod Loaders
Minecraft
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About

Description

Copycats Sable Light Fix

Fixes incorrect ambient occlusion (AO) on copycat models rendered inside Sable sub-levels.

Mod ID: copycats_sable_light_fix | Version: 1.0.0 | Loader: NeoForge 1.21.1

Description

This mod fixes incorrect ambient occlusion (AO) / smooth lighting on copycat models when they are rendered inside Sable sub-levels.

Works with any mod that provides copycat models: Create, Extra Copycats, Create Connected, and others.

Before / After

Before (broken AO) After (fixed AO)
Before After

How it works

  1. Detection - When ModelBlockRenderer.tesselateBlock() is called, the mod checks whether the rendered BakedModel is a copycat model (instanceof CopycatModel or by class name com.fiisadev.extra_copycats.*).

  2. Interception - Instead of redirecting Minecraft.useAmbientOcclusion() (which gets inlined and is invisible to mixins at runtime), the mod redirects the actual call to ModelBlockRenderer.tesselateWithAO() inside tesselateBlock().

  3. Fallback - If the model is a copycat, the call is redirected to tesselateWithoutAO() (flat lighting). Otherwise, the original tesselateWithAO() path is preserved.

  4. Safety - The mod uses try-catch + class-name fallback so it does not crash if no Copycats mod is installed. It only affects copycat models; all other blocks render with normal AO.

  5. Config - Toggle the fix on/off via Mod Menu or config/copycats_sable_light_fix-client.toml.

Technical details

Parameter Value
Minecraft 1.21.1
Loader NeoForge 21.1.262+
Mixin Sponge 0.16.4+mixin.0.8.7
Redirect target ModelBlockRenderer.tesselateWithAO(...) via @Redirect
Client-only Yes

Dependencies

Mod Type
NeoForge Required
Minecraft 1.21.1 Required
Sable 2.0+ Required

Note: Any Copycats-compatible mod works — Create, Extra Copycats, Create Connected, etc. Not required.

Based on Sable upstream issue #1479.