Peek: Quick Asset Preview - Prefab, FBX & More
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Instant asset preview and inspector for the Unity Editor. Press Tab to preview FBX, animations, textures, materials, audio, video, shaders, fonts, prefabs, and ScriptableObjects — Quick Look-style.Quick Look for Unity. Press Tab on any asset to preview FBX models, animations, textures, prefabs, materials, audio, video, shaders, fonts, ScriptableObjects, and more — instantly, in a floating window.Every Unity developer knows the friction: clicking through layers of nested sub-assets just to play one animation inside an FBX or prefab, opening Prefab Mode only to inspect a hierarchy, importing a font into a test scene to see how it looks, or opening a texture in an external tool to compare two versions. Peek collapses all of that into a single keystroke. Select an asset in the Project view, press Tab, and an interactive preview opens immediately — with channel isolation for textures, timeline scrubbing for animations, wireframe and UV layout views for meshes, syntax highlighting for shaders and code, waveform display for audio, and a built-in asset QA panel that flags performance issues. Press Tab again to dismiss.Killer FeaturesBrowse All FBX Animations Without Expanding the FileThis alone is worth it. Select any FBX file and Peek immediately shows a fully interactive 3D animation preview — no need to expand the FBX in the Project window, no need to drag it into a scene, no Animator setup required. A tab bar at the top lists every animation clip embedded in the FBX. Switch clips instantly, scrub through the timeline, adjust playback speed, toggle root motion, and swap the preview model — all from the floating window. This turns a 30-second workflow into a 2-second one.Explore Prefab Structure at a GlanceSelect a prefab and Peek shows you a fully navigable hierarchy tree — all GameObjects, all nesting levels, with search and expand/collapse controls. Click any node to isolate it in the 3D preview. No need to open the prefab in Prefab Mode just to check its structure. Combined with the interactive 3D view and wireframe toggle, you get a complete picture of any prefab without touching the scene.Font Preview — FinallySelect a .ttf or .otf font and Peek renders it at multiple sizes immediately: alphabet, sentence, numerals, and symbols. No more importing fonts into a test scene to see what they look like. This is the feature that should have been built into Unity from day one.Texture Compare and Pixel DiffSelect two textures, open Peek, and hit Compare. The window splits side by side with both textures at the same zoom and pan. Hit Diff and Peek computes a pixel-level difference image (amplified 4×) that makes even the subtlest changes visible. Invaluable for texture atlases, compressed vs uncompressed comparisons, and version control reviews.Built-in Asset QAEvery asset gets automatically analysed for common performance and quality problems. Peek tells you if a texture has Read/Write enabled (doubles RAM), compression turned off, mipmaps missing, or an oversized max resolution. For audio it flags missing streaming on long clips. For models it catches non-1 import scale and missing materials. For materials it catches missing shaders and empty texture slots. Each issue is rated as Problem, Warning, or Info with a one-line explanation — and you can copy the full report to clipboard.References & Dependencies PanelSee exactly which assets reference the current asset — and which assets it depends on. Instantly answer "what uses this texture?" or "what does this prefab pull in?". Filter by name or file type, ping or select any result directly, and for prefabs use Open In Context to jump straight to where the asset is used inside the prefab hierarchy.Everything Else Peek Can DoTexturesZoom, pan, isolate R/G/B/A channels individually, switch background between grey/black/white/checkerboard. Stats overlay shows GPU memory size, format, dimensions, Read/Write state, and mip count.3D ModelsRotate, pan, zoom. Wireframe mode with a custom renderer. Mesh overlays: UV checker pattern, vertex normals, tangents, and a full 2D UV layout view with UV0–UV3 channel switching, per-submesh coloring, pan/zoom, and the material's actual texture rendered under the unwrap so you can see exactly how the UVs sit on the image (with separate opacity sliders for texture and lines, plus a submesh cycler for multi-material meshes). Five saveable camera presets. Vertex and triangle count badge. Material property sidebar.AudioWaveform display, auto-plays on open, play/stop/loop controls.VideoPlays in the preview window. RenderTexture resolution matches actual video dimensions.Code & ShadersSyntax-highlighted viewer for C#, HLSL/GLSL shaders, and JSON. Virtualized rendering — even large files are smooth.ScriptableObjectsScrollable field viewer with search. Arrays, nested objects, and object references all displayed clearly.Cubemaps, Texture3D, RenderTexturesFull interactive preview via Unity's built-in editors.Compare ModeSide-by-side comparison for all supported asset types: textures, models, animations, audio, code.HistoryA dropdown of your last 10 previewed assets. Jump back instantly.ScreenshotSave the current preview as a PNG with one click. For 3D models, use the five saveable camera presets to store your preferred angles — frame the shot exactly how you want it, then export. A separate Save Transparent button captures 3D models, mesh inspection views, and materials with a true alpha channel — perfect for design mockups, store thumbnails, and documentation.ThemesDark Professional, Midnight Blue, and Light — for developers using Unity's light editor skin.Before and After PeekFinding an animation inside an FBX or prefabBefore: expand the FBX, scroll through sub-assets, find the clip, double-click, wait for the editor.With Peek: press Tab, every clip appears in a tab bar, play immediately.Inspecting a prefab's structureBefore: open the prefab in Prefab Mode just to look at its hierarchy.With Peek: press Tab, browse the full hierarchy inside the floating preview.Previewing a fontBefore: import the font into a test scene to see how it looks.With Peek: press Tab, see the font rendered at multiple sizes immediately.Comparing two texturesBefore: open both files in an external tool to spot the differences.With Peek: press Tab, Compare + Pixel Diff show the changes side by side.Checking if a texture is set up correctlyBefore: open the importer, check each setting one at a time, guess what is wrong.With Peek: press Tab, the Asset QA panel lists every issue with severity and a one-line fix.Requirements- Unity 2022 LTS or newer- Editor only — zero runtime impact, zero build size addedNotes- The Peek window is a floating utility window. It cannot be docked into the Unity layout — this is intentional, matching the Quick Look popup paradigm.- Trigger key, window size, and theme are all configurable in Edit → Preferences → Peek.*Press Tab. See everything.*- One-keystroke asset preview window — press Tab on any selected asset in the Project view- FBX animation browser with embedded clip tab bar, timeline scrubbing, playback speed, and root motion toggle- Interactive 3D model preview with rotate, pan, zoom, wireframe, and five saveable camera presets- 2D UV layout view with UV0–UV3 channel switching, per-submesh coloring, and the material's albedo rendered under the unwrap- Mesh inspection overlays: UV checker pattern, vertex normals, and tangents- Prefab hierarchy browser with search, expand/collapse, and click-to-isolate in the 3D preview- Texture viewer with R/G/B/A channel isolation, zoom/pan, GPU memory and mip count stats- Texture compare and pixel-level diff (4× amplified) for atlases, compression checks, and version control reviews- Font preview for .ttf and .otf rendered at multiple sizes (alphabet, sentence, numerals, symbols)- Material preview with shader properties sidebar and texture slot inspection- Audio waveform viewer with play, stop, and loop controls- Video preview with playback in a floating window at the source resolution- Syntax-highlighted viewer for C#, HLSL/GLSL shaders, and JSON — virtualized for very large files- ScriptableObject field viewer with search, nested objects, arrays, and object references- Cubemap, Texture3D, and RenderTexture interactive previews- Built-in Asset QA panel — automatic checks for textures, audio, models, and materials with severity tags- References & Dependencies panel with Open In Context to find exactly where an asset is used inside a prefab- Compare mode for two textures, models, animations, audio, or code files side by side- PNG screenshot export with optional transparent alpha channel for 3D models, materials, and meshes- Preview history dropdown of the last 10 previewed assets- Three themes: Dark Professional, Midnight Blue, and Light- Configurable trigger key, window size, and theme under Edit → Preferences → Peek- Editor only — zero runtime impact, zero build size added- Unity 2022 LTS or newerAI was used as a coding assistant to help write and refactor portions of the C# editor scripts. All AI-assisted code was reviewed and tested by the developer before inclusion. The package contains no AI-generated images, audio, or other media assets. AI also helped draft the Asset Store listing.


