Geometry Labs

Why Check Texel Density?

Consistent Detail

Uneven texel density makes some parts of a model look sharp and others blurry. Measure it so every surface gets comparable detail.

Find Stretched UVs

The heatmap highlights islands that are stretched or compressed, so you know exactly which parts to re-unwrap.

Multi-Tile Ready

Check density on every UDIM tile independently to keep consistent texel density across complex multi-tile workflows.

How to Use the UV Density Checker

1

Upload Your Model

Drag and drop an OBJ, GLB, GLTF, FBX, DAE or PLY file that has UV coordinates.

2

Read the Heatmap

Each triangle is colored by its texel density. Blue regions are under-resolved, red regions are over-resolved.

3

Fix & Re-check

Re-unwrap or scale the outlying islands in your 3D software, then re-upload to confirm even density.

FAQ

Frequently Asked Questions

A UV island is a connected group of UV faces separated from other faces by seams. Each island is a continuous patch that maps to a single region of texture space.

The viewer rasterizes every triangle into a fine grid and flags any cells covered by more than one island. Enable the highlight toggle to see overlapping islands highlighted in red.

Aim for 70% or higher. Lower usage means wasted texture resolution. Note that padding between islands for mip-mapping and bleeding is still recommended, so 100% is rarely achievable or desirable.

OBJ, GLB, GLTF, FBX, DAE and PLY files with UV coordinates. OBJ and GLB load instantly in your browser; other formats are processed securely on our servers.

Yes. Multi-tile models are detected automatically and you can switch between UDIM tiles to inspect each layout independently.