Asset Manager & Browser with Live 3D Preview
Key features * Real rendered thumbnails for models, prefabs, materials and particle effects: ... * Search and type filters: comma separated search terms ("orc,zombie"), per kind toggles, ...
by CRE8NOW-GAMER
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### Technical details
- Editor extension only, nothing ships in your build.
- Unity 6000.0 or newer (developed and tested on 6000.2.x).
- Render pipeline agnostic: Built-in, URP, HDRP (SRP rendering enabled in the preview).
- Ships as an `AssetHandler.Editor` assembly definition scoped to the Editor platform.
- ~3 C# files, no third-party libraries, no runtime footprint.
### Getting started
1. Import the package.
2. Open Window ▸ Asset Handler.
3. Click + Asset Folder and pick a folder inside `Assets/`.
4. Click a tile to preview it, drag it into the scene, or double-click to place it.
Asset Handler is a dockable Model/Prefab/Material browser that turns any folder in your project into a visual, searchable library of everything you can put in a scene.
Point it at a folder and it scans for models, prefabs, materials and particle effects, then lays them out in a thumbnail grid with real rendered previews, not generic type icons. Click any tile and the panel on the right shows a live, orbitable 3D preview of the asset: spin it with the mouse, zoom with the wheel, read its vertex and triangle counts at a glance.
Found the asset you want? Drag the tile straight into the Scene view, the Hierarchy, or an Inspector slot, or double click to place it instantly at a target you choose. Double click a material to apply it to whatever you have selected in the scene, with full undo.
Built for real projects: the grid only renders the tiles currently on screen and loads assets lazily as you scroll, so a folder with thousands of entries stays smooth. The window only repaints while something is actually animating, so it sits in your layout without burning frames.
Key features
* Real rendered thumbnails for models, prefabs, materials and particle effects: textured meshes render correctly, materials preview on a sphere.
* Live 3D preview powered by `PreviewRenderUtility`: LMB orbit, wheel zoom, works under Built in, URP and HDRP.
* Animation playback: assets with animation clips get a clip dropdown plus Play/Pause, a scrub timeline with time readout, sampled directly with no Animator setup required. Particle effects loop in the preview.
* Drag and drop anywhere: Scene view, Hierarchy, Inspector object fields.
* Double click to place at a configurable target: scene root, current selection, or a named group created on demand. New models auto arrange beside existing ones instead of stacking at the origin.
* Apply materials to selection with one double click: repoints `sharedMaterials` only, never clones the asset or disturbs its tiling and offset.
* Search and type filters: comma separated search terms ("orc,zombie"), per kind toggles, and an "Animated only" filter.
* Adjustable tile size slider.
* Auto rescan when assets change on disk via `AssetPostprocessor`.
* Right click menu: Select in Project, Instantiate in Scene or Apply to Selected, Show in Finder.
Why you'll keep it docked
* Fast on huge folders: viewport culling, lazy asset loading, and a preview cache sized to the visible tiles.
* Idle friendly: repaints only while a preview is orbiting, a clip or particle system is playing, or thumbnails are still streaming in.
* No dependencies, no setup: pure editor scripts in an `Editor` assembly definition. Drop it in and open `Window ▸ Asset Handler`.
* Full source included, cleanly commented.
