High Dynamic Range Imaging (HDRI) refers to the set of imaging technologies and techniques that allow to increase the dynamic range of images or videos. It covers the acquisition, creation, storage, distribution and display of images and videos. Use this tag for questions relating to 360 degree HDRI lighting setups.
The World
defines the environment that the scene is in. The surface shader sets the background and environment lighting, either as a fixed color, sky model or HDRI texture.
High Dynamic Range Imaging (HDRI) refers to the set of imaging technologies and techniques that allow to increase the dynamic range of images or videos. It covers the acquisition, creation, storage, distribution and display of images and videos.
Tone mapped High-Dynamic-Range (HDR) image of St. Kentigern's Church in Blackpool, Lancashire, England
HDR Light Studio defines HDRI map:
A HDRI map (high dynamic range image map) is a digital image file commonly used in 3D computer graphics for image-based lighting. The rectangular photographic image captures a view of a location in all directions from a single viewpoint - where the pixel brightness values in the image are unlimited and match the real-world lighting values.