Lighting & rendering · Beginner

HDRI

A 360-degree image that stores real light levels, used to light 3D scenes

Also called HDR image, HDRI map

What is an HDRI?

An HDRI is a high dynamic range image, usually a 360-degree panorama, that stores real light levels from deep shadow to as bright as the sun. In 3D, it wraps around a scene to light it and to appear in reflections, which makes it a quick route to realistic lighting.

Think of it like this

It is like a snow globe turned inside out: your model sits in the center, and the whole surrounding scene lights it from every direction.

Where it fits in a 3D project

  1. Create
  2. Surface
  3. Rig
  4. Animate
  5. Render
  6. Export

Render: Lighting the scene and turning it into images or video.

How an HDRI works

  1. 01A photographer shoots the same spot at several exposures, in every direction.
  2. 02The shots are merged and stitched into one panoramic, high dynamic range file.
  3. 03The 3D app wraps that panorama around the scene as its world background.
  4. 04The renderer uses its bright and dark areas as light, called image-based lighting.

HDRI vs HDR

PropertyHDRIHDR
MeansA specific image, often panoramicThe idea of a wide brightness range
Used forLighting 3D scenesPhotos, video, displays and renders
FormUsually a 32-bit image fileMany formats and screens

HDR is the quality; an HDRI is an image that has it, made to light a 3D scene.

Where an HDRI is used

  • Lighting product shots in minutes
  • Realistic reflections on cars, glass and metal
  • Matching CG lighting to a real location

Beginner tip

Pick an HDRI that matches the mood you want before adding any lamps. Then rotate it until the main light falls on the side of the model you want to show.

Terms related to an HDRI

HDRI FAQ

What is an HDRI map?
The same thing. HDRI map usually means an HDRI used as the environment of a 3D scene: the panorama that surrounds it and supplies its light and reflections.
How do I add an HDRI in Blender?
In the World settings, set the background color to an Environment Texture and open your HDRI file. Switch the viewport to rendered view to see it light the scene.
Can I make my own HDRI?
Yes. Shoot a full 360-degree set of bracketed exposures from a tripod, or use a 360 camera that brackets, then merge and stitch them in panorama software.
Why does my HDRI look blurry in the background?
An HDRI spreads a whole panorama over its resolution, so the small slice behind your model looks soft. Use a higher-resolution file, or keep the HDRI for lighting and place a sharp photo behind the model.

Updated October 29, 2026 · Browse all 3D terms