Slice & Separate is an add-on that cuts selected meshes into multiple independent objects along a defined axis. Users can control the slicing behavior by specifying either a specific distance between cuts or a total number of slices to generate. An auto-detect feature can automatically align the slicing axis parallel to the longest side of the selected object.

The tool is designed for workflows that require dividing large contiguous meshes into smaller components. This is particularly relevant for real-time engines like Unreal Engine, where breaking up large meshes allows for more efficient lightmap baking using smaller texture resolutions instead of single massive lightmaps. The add-on includes a grid mode, handles multiple objects simultaneously, and features a progress bar with confirmation dialogs for computationally heavy operations on high-poly meshes.