by AL3K·Workflow
Illustrative cover generated by AnyPlugins — no product screenshot available.
Earns its place for moving trim-sheet mapping into the 3D viewport, letting hard-surface and environment artists stamp UVs and materials by selecting faces rather than working in the 2D UV editor.
Universal Hotspot UV, from developer AL3K, works inside Blender's 3D viewport. You pull a visual Atlas Mesh into your scene, select a bolt, panel, or trim, and stamp its exact UVs and material onto any target object with longest-edge alignment. It runs on native Multi-Object Edit Mode math rather than screen-space raycasting.
The auto-alignment calculates local 2D tangent spaces so the longest edge of a 3D face matches the longest edge of the trim, keeping wood grains and metal streaks flowing correctly. One-click material transfer reads the source material and automatically appends and assigns it to the target faces. True Matrix Rotation steps through 0°, 90°, 180°, and 270° while respecting the face's aspect ratio without skewing or stretching.
Mass randomization scatters selected trims across many empty faces at once, carrying over their materials and applying random 90-degree rotations to destroy texture repetition. The add-on is compatible with Blender 4.0 through 5.2 and ships under the GPL license. It works with custom trim sheets and is included with the Universal Hotspot Library.
Universal Hotspot Uv is best for environment and hard-surface artists mapping textures who want to stamp trims directly in the viewport.
Universal Hotspot Uv is completely free to download and use.
Universal Hotspot UV lists compatibility with Blender 4.0, 4.1, 4.2, 4.3, 5.0, 5.1, and 5.2, so it covers the 4.0 through 5.2 range. It runs on native Multi-Object Edit Mode math rather than screen-space raycasting, and it supports the Blender-Internal, Cycles, and Eevee render engines. If you are on a version outside that range, check the developer's page before installing to confirm support, since the listed range is what the add-on was built against.
Universal Hotspot UV is listed as free here, and it ships under the GPL license. For current licensing terms and any purchase options, check the developer's page, since the tool is also positioned as the engine behind the separate Universal Hotspot Library and is included with that bundle. On its own, the add-on works with your own custom trim sheets, so you can bring existing assets rather than relying on any bundled content.
Universal Hotspot UV automatically calculates local 2D tangent spaces so the longest edge of your 3D face matches the longest edge of the selected trim. That alignment keeps directional details like wood grains and metal streaks flowing correctly. You can also step through 0°, 90°, 180°, and 270° rotations manually with its True Matrix Rotation, which respects the face's aspect ratio without skewing or stretching. Selecting a bolt, panel, or trim from the Atlas Mesh then stamps its exact UVs onto the target object.
Universal Hotspot UV works with your own custom trim sheets, pulling an Atlas Mesh into your scene as a 3D palette to stamp from. It was also designed as the engine for the separate Universal Hotspot Library, which includes pre-made 3D trim palettes, and the add-on is included with that bundle. When you stamp a UV, the tool reads the source material and automatically appends and assigns it to your target faces, so materials carry over along with the mapping.
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