UV Visualizer is a lightweight, high-performance extension tool for the Unity Editor.

It provides a complete, localized sandbox for inspectors, environment creators, and technical artists to analyze and parse texture layout coordinate maps without leaving Unity.

Key Features & Core Architecture

• Dynamic Island Identification: Automatically groups mesh triangle primitives using an optimized non-recursive graph traversal algorithm to trace independent UV patches.
• Precise Marquee Tool Selection: Replaces traditional, loose bounding box tracking with exact point-in-triangle mathematical interception. This ensures stacked, overlapping, and complex asset coordinates selection behaves with total precision.
• Dual View Syncing Overlays: Highlights active coordinates within the isolated 2D canvas viewport and maps wireframe highlights directly onto the selected GameObject in the 3D Scene View.
• Adaptive Resolution PNG Exporter: Directly queries material pipelines to extract the width and height of assigned target graphics textures. It then bakes out high-contrast, transparent layouts precisely scaled to your asset's native resolution.
• Multi-Channel Layout Layer Filtering: Automatically scans all 8 available structural mesh channels inside your model. This allows users to switch between main texture maps (UV0) and secondary sets like lightmaps or detail coordinates (UV1-7) instantly.