4 packing modes
MAXRECTS, Guillotine and Shelf, plus a Max Quality mode that packs islands by their real shape so small pieces fill holes and concavities.
Blender 3.6 · 4.x · 5.x — smoke-tested on real builds
One-click UV packing,
One-click UV packing,
with the texel density toolkit built in
TexelPack packs the UV islands of one or many objects into a tight atlas, keeps texel density consistent across your whole selection, and shows you — visually, in the viewport — where your UVs waste space or stretch textures.
4 algorithms
MAXRECTS, Guillotine, Shelf + shape-aware Max Quality
100k polys
Vectorized island extraction in under a second
±1 px
Pixel-exact padding for clean bakes
0 deps
Nothing to pip-install — pure Python
Everything in one add-on
Built for production UV work
From a single click for everyday packing to shape-aware atlasing, stacking and texel-density analysis for studio pipelines.
Packing
Stack identical islands
Repeated parts — bolts, bullets, modules — are detected, including mirrored copies, and share one UV slot and its texels, multiplying effective resolution.
Rotation & straighten
90°, 45°, 30° or 15° rotation steps, and automatic straighten that pre-rotates tilted islands to their minimal bounding box for tighter packing.
UDIM & group packing
Distribute islands across UDIM tiles, or pack one tile per object, material or collection — built for level-atlasing pipelines.
Destinations & exclusions
Pack into a specific tile or sub-region and leave the rest untouched. Reserve atlas areas for logos and trim sheets the packer must avoid.
Pixel-perfect spacing
Per-island margins and pixel-exact padding (±1 px) for clean bake bleeding, plus pixel-grid alignment for low-res textures and pixel art.
Texel density & analysis
Uniform texel density
Islands are scaled to each object's real 3D surface area — object scale included — so a big crate and a small prop get the resolution they deserve.
Viewport overlays
Color-code every face against your target density, or visualize UV stretching and compression at a glance — directly in the 3D viewport.
Honest statistics
Efficiency is measured on real island geometry, not bounding boxes. Overlap detection is geometric — no false positives — with a copyable report.
Island tools & workflow
Interactive island tools
Stack / unstack, flip X / Y around each island's center, and straighten selected islands in place — no full repack required.
Preview before apply
See the packed layout in the UV Editor and confirm with Enter or discard with ESC — your UVs aren't touched until you say so.
Presets & export
Save full configurations (3 built-ins included), export per-island data as JSON / CSV, and export a color-coded SVG layout for Substance or Photoshop.
The differentiator
Texel density, done right
Most packers stop at fitting islands into a square. TexelPack also makes sure every surface gets a fair share of texture resolution — and lets you see it before you bake.
- Normalize density across an entire multi-object selection in one pass.
- Color-coded viewport overlay grades each face against your target.
- Distortion overlay reveals stretching and compression instantly.
Overlay legend
Density too low — texture wasted on this surface
On target — correct resolution
Slightly high
Too high — over-textured, atlas wasted
The same legend the overlay draws in your viewport.
Pick your trade-off
Choosing an algorithm
Fast iteration or final-quality atlasing — TexelPack covers both, and Max Quality mode packs by real shape.
| Algorithm | Speed | Quality | Best for |
|---|---|---|---|
| MAXRECTS | ★★★ | ★★★ | Final assets, production quality |
| Guillotine | ★★★ | ★★★ | Everyday use |
| Shelf | ★★★ | ★★★ | Fast iteration on simple meshes |
| Max Quality | ★★★ | ★★★ | Shape-aware packing by real geometry |
Up and running in a minute
Three steps to a packed atlas
Select your objects
Select one or more mesh objects that have UV maps.
Open the TexelPack tab
In the UV Editor, press N and switch to the TexelPack tab.
Pick a size and click Pack
Choose an atlas size and hit Pack UVs. Advanced options live in the collapsible panels below.
Get TexelPack
Ready to pack tighter atlases?
Your purchase covers tested release builds, all future updates and support. Available on Blender Market.