This Python script provides a user interface (UI) for managing HDRI (High Dynamic Range Image) files in Houdini, created using PySide2 and integrated with Houdini’s scripting interface. The tool enables users to explore directories, generate and view HDRI thumbnails, and adjust zoom levels and column layouts for an efficient browsing experience. Key functionalities include importing HDRIs directly into Houdini, browsing HDRI folders, generating thumbnails for quick previews, and customizing the view with zoom sliders and spin boxes for dynamic control over the display.