---
title: "ODT (Output Device Transform)"
url: https://postproduction.studio/en/glossary/odt-output-device-transform
language: en
description: "An ODT (Output Device Transform) is the final stage of the ACES color pipeline, a transform that converts working-space color data into the specific out..."
updated: 2026-10-25
---

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# ODT (Output Device Transform)

An ODT (Output Device Transform) is the final stage of the ACES color pipeline, a transform that converts working-space color data into the specific output color space and transfer function required by a delivery target. Each ODT corresponds to a specific delivery: Rec.709 SDR, Rec.2020 PQ 1000 nits HDR, P3-D65 theatrical, P3-D60 ST 2084, Rec.709 broadcast 100 nits. The ODT is paired with the RRT (Reference Rendering Transform), which is shared across all outputs — first the RRT applies a global film-like tone mapping to scene-referred ACES data, then the ODT performs the final mapping to the target's specific gamut and transfer function. This architecture means a single graded ACES sequence can produce Rec.709 SDR, HDR10, Dolby Vision and theatrical P3 deliverables simply by swapping ODTs. The Academy maintains the official ODT library at acescentral.com; new ODTs are added as new delivery formats emerge (Dolby Vision IQ, HDR10+, etc.). ODTs are also used in 'pre-grading' workflows: an ARRI Alexa shot in Log C is processed through its IDT into ACES, then through the appropriate ODT for the on-set monitor, giving the DoP a viewable image at the corrects delivery target. Modern color tools (Resolve, Baselight, Nuke) ship with full ACES ODT libraries built-in. Reference: ACES central documentation, particularly the IDT/RRT/ODT pipeline diagrams.

Color ScienceColorist, DITColor Grading, Display

## Related terms

[ACES (Academy Color Encoding System)](https://postproduction.studio/en/glossary/aces-academy-color-encoding-system)[Color Space](https://postproduction.studio/en/glossary/color-space)[LUT](https://postproduction.studio/en/glossary/lut)

A single grade produces all deliverables via different ODTs.

## Articles covering this term

* [ACES: End-to-End Color Workflow System

  Master ACES color workflow: AP0/AP1 spaces, IDT/RRT/ODT transforms, ACEScg/ACEScct, VFX integration, HDR workflows, and implementation best practices.](https://postproduction.studio/en/image/aces-workflow)
* [Color pipeline: from set to delivery

  Master the end-to-end color pipeline in post-production. Understand on-set color management, ACES, dailies LUTs, HDR mastering, and delivery standards.](https://postproduction.studio/en/workflows/color-pipeline)