SuraFix Mesh Atlas Fusion - Texture Atlas Packing & Mesh Optimization

SuraFix MeshAtlasFusion

Turn dozens of draw calls into one.

Combine any number of meshes into a single, atlas-textured prefab — with a grid-based batch workflow and automatic splitting by LOD level. What used to be a dozen draw calls becomes one.

Most mesh-combining tools either drop textures that don't fit the atlas, or squash tiled materials into a blurry mess. SuraFix MeshAtlasFusion doesn't: its own shelf-packing algorithm shrinks slot sizes until every texture fits — nothing gets dropped — and tiled materials (walls, floors) are polygon-clipped along their tile boundaries so they stay sharp in the atlas instead of stretched.

Two workflows, one window: manually combine a single hand-grouped object set, or run a full grid batch across an entire scene — hundreds of groups baked in one pass, with Unity's reimport deferred until the very end so it doesn't slow you down group by group.

Features

• NEW: LOD-Auto-Split — automatically detects LODGroup components and builds a separate combined, atlas-textured prefab per LOD level.
• Custom shelf-packing atlas algorithm — never drops a texture, shrinks slot size instead.
• UV tile-splitting for tiled materials (walls, floors) — polygon-clipped per tile instead of stretched.
• Normal map rebaking into a matching normal atlas, with optional Lightmap UV2 generation.
• Grid-based batch workflow for combining scattered scene objects (vegetation, props, spawn objects) at scale.
• Manual workflow for hand-grouped object sets, with per-LOD-group baking.
• Batch reimport optimization — bakes 5 or 500 groups with a single asset reimport at the end.
• Per-slot tiling/offset overrides before baking, to fix stretched textures on individual renderers.
• Interior Volumes — strip interior triangles that become permanently hidden after combining.
• Atlas Debug Viewer — opens after every bake, shows which mesh uses which atlas slot, with click-to-highlight and direct atlas retouching. In automatic/batch runs, it lists every baked object individually, and lets you swap out the entire source texture behind an atlas slot — not just repaint pixels within it.
• Collider Grouper — group all root objects inside any collider shape, independent of the grid workflow.
• Missing Script Cleaner — standalone tool to find and remove missing script references in the active scene.
• Editor-only baking — all texture work happens at build time in the editor, zero runtime cost in the game.
• Compatible with Built-in, URP, and HDRP.

Documentation: https://surafixstudio.de.cool/?page=surafix-meshatlasfusion

Discord: https://discord.gg/NWd7M7gHd4