Unbend Mesh is a tool that straightens curved polygon meshes. It works on any geometry where a clear edge loop can be selected, calculating an approximation to flatten the geometry along a straight line. It is particularly useful for objects that have been converted from curves to meshes, allowing adjustments to the original curvature.
The tool includes an 'Unlimited unbend' option, which allows users to overshoot the straightening effect to increase the curvature instead of flattening it. It supports complex deformations, including meshes that are both bent and twisted. Common use cases include adjusting character hair, hard surface elements, and organic shapes.