# Repack texture coordinates

> Use this feature to check if overlaps exist in UV space.

API function: [algo.hasOverlappingUV(occurrences, channel, resolution) -> bool](/asset-transformer-sdk/2026.4/api/python/algo_functions.md#hasoverlappinguv)

Use this feature to check if overlaps exist in UV space.
It returns true or false, depending on the existence of overlaps.
If overlaps are not desired, see [algo.repackUV](/asset-transformer-sdk/2026.4/api/python/algo_functions.md#repackuv)

## Parameters

* channel (default 0): the UV channel to verify. If no UVs are found in this channel, there is no overlap detected.
* resolution (default 1024): resolution of the underlying rasterization grid. If two polygons of different islands overlap in the same grid cell, then it is considered an overlap.