Lighting & rendering · Intermediate

Tone mapping

Fitting a render’s huge brightness range onto a screen without losing detail

What is tone mapping?

Tone mapping is the step that squeezes the huge range of brightness in a render into the much smaller range a screen can show. It keeps bright lights and dark shadows readable, decides how highlights roll off to white, and gives a render a natural, photographic look.

Think of it like this

It is like packing a week of clothes into a carry-on bag: everything has to fit, so you fold the bulky items smartly instead of leaving them out.

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 tone mapping works

  1. 01The renderer calculates light as real, unlimited brightness values.
  2. 02Exposure scales those values up or down, like a camera setting.
  3. 03A tone curve compresses the brightest values so they fade gently toward white.
  4. 04The result is converted into colors your screen can display.

Tone mapping vs color grading

PropertyTone mappingColor grading
PurposeFit brightness to the screenSet mood and style
Kind of stepTechnical, always neededCreative, optional
OrderFirstAfterward

Tone mapping makes the image displayable; color grading makes it look the way you want. Get tone mapping right before you grade.

Where tone mapping is used

  • Bright skies and lamps without blown-out white
  • Photoreal renders that match camera footage
  • Consistent brightness in game engines

Beginner tip

Choose the view transform before you light the scene. Lighting under one tone mapper and switching later changes every brightness decision you made.

Terms related to tone mapping

Tone mapping FAQ

Why do my renders look overexposed?
With a plain view transform, anything brighter than the screen can show clips to flat white. Use a filmic-style tone mapper, such as AgX in Blender, and lower exposure until highlights keep their detail.
Where is tone mapping in Blender?
In Color Management under the render settings, as the View Transform. AgX is the default in recent versions and Filmic in older ones, while Standard applies no compression, which suits graphics more than photoreal renders.
Is tone mapping the same as HDR?
No. HDR describes images that hold a wide brightness range. Tone mapping is how that range is fitted onto a screen, whether a standard one or an HDR display with more headroom.

Updated October 29, 2026 · Browse all 3D terms