# My application or pipeline does not support ACES 2.0 (or its output looks different from my old ACES 1.x setup): what do vendors and the community document as the safe options?

- id: art_01M5NHG0C4GJWK8CMFJRCJ2C6K
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T11, T12 · tags: none
- updated: 2026-10-23T23:28:17.790Z
- url: https://veyrul.com/articles/art_01M5NHG0C4GJWK8CMFJRCJ2C6K

As of September 2026 there are three practical routes to ACES 2.0. Hosts on OCIO 2.5 or later (Maya and 3ds Max 2027, per an OCIO developer's post) can load the official ACES 2.0 configs. Blender 5.0 ships its own ACES 1.3 and 2.0 views, including HDR variants. Older hosts can use LUTs baked from an ACES 2.0 config with ociobakelut, which needs a shaper space; one practitioner reported naive bakes crushing low-light detail. In the OCIO-2 ACES configs the color_picking role is sRGB-encoded without tone mapping, so writing review PNGs needs the display transform.

As of September 2026 there are three practical routes to ACES 2.0. Hosts on OCIO 2.5 or later (Maya and 3ds Max 2027, per an OCIO developer's post) can load the official ACES 2.0 configs. Blender 5.0 ships its own ACES 1.3 and 2.0 views, including HDR variants. Older hosts can use LUTs baked from an ACES 2.0 config with ociobakelut, which needs a shaper space; one practitioner reported naive bakes crushing low-light detail. In the OCIO-2 ACES configs the color_picking role is sRGB-encoded without tone mapping, so writing review PNGs needs the display transform.

Curator qualifications: Configs and posts read 2026-10-22; no config loaded and no LUT baked. Forum posts are practitioner reports (one company named in a post), not vendor documentation. Curator amendment CA-AM-0061 (2026-10-22): Qualification: 'the change came with the OCIO-2 era configs' relies on a forum poster's statement (ACEScentral topic 6006) that the older ACES 1.2 (OCIO v1) config used a tone-mapped color_picking role. No ACES 1.2 config was read. What is verified from config files: color_picking is 'sRGB Encoded Rec.709 (sRGB)' (untone-mapped) in the ACES 1.3 CG and studio configs v2.2.0 and unchanged in the ACES 2.0 v4.0.0 and ACES 2.1 v5.0.0 configs. Wording: 'untone-mapped since at least the ACES 1.3 CG config v2.2.0; a forum poster says the ACES 1.2 config used the tone-mapped Output sRGB'.

Limitations: Configs and posts read 2026-10-22; no config loaded and no LUT baked.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://github.com/AcademySoftwareFoundation/OpenColorIO/releases/tag/v2.5.0",
      "note": "ACEScentral topic 6016 (JSON), posts 6, 8, 9, 11 (Sept 2026); Blender 5.0 release notes: Color Management; cg-config-v2.2.0 (ACES 1.3) roles"
    },
    {
      "url": "https://docs.acescentral.com/system-components/output-transforms/implementer-notes",
      "note": "cited at https://docs.acescentral.com/system-components/output-transforms/implementer-notes/; ACEScentral topic 6016 (JSON), posts 6, 8, 9, 11 (Sept 2026); Blender 5.0 release notes: Color Management; cg-config-v2.2.0 (ACES 1.3) roles"
    },
    {
      "url": "https://developer.blender.org/docs/release_notes/5.0/color_management/",
      "note": "ACEScentral topic 6016 (JSON), posts 6, 8, 9, 11 (Sept 2026); Blender 5.0 release notes: Color Management; cg-config-v2.2.0 (ACES 1.3) roles"
    },
    {
      "url": "https://docs.blender.org/manual/en/5.0/render/color_management/opencolorio.html",
      "note": "ACEScentral topic 6016 (JSON), posts 6, 8, 9, 11 (Sept 2026); Blender 5.0 release notes: Color Management; cg-config-v2.2.0 (ACES 1.3) roles"
    },
    {
      "url": "https://community.acescentral.com/t/6016",
      "note": "ACEScentral topic 6016 (JSON), posts 6, 8, 9, 11 (Sept 2026); Blender 5.0 release notes: Color Management; cg-config-v2.2.0 (ACES 1.3) roles"
    },
    {
      "url": "https://community.acescentral.com/t/6006",
      "note": "ACEScentral topic 6016 (JSON), posts 6, 8, 9, 11 (Sept 2026); Blender 5.0 release notes: Color Management; cg-config-v2.2.0 (ACES 1.3) roles"
    },
    {
      "url": "https://docs.acescentral.com/system-components/output-transforms/implementer-notes/",
      "note": "observed URL (dated/alias form of the cited catalogue source; canonical identity retained)"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] As of September 2026 there are three practical routes to ACES 2.0. Hosts on OCIO 2.5 or later (Maya and 3ds Max 2027, per an OCIO developer's post) can load the official ACES 2.0 configs. Blender 5.0 ships its own ACES 1.3 and 2.0 views, including HDR variants. Older hosts can use LUTs baked from an ACES 2.0 config with ociobakelut, which needs a shaper space; one practitioner reported naive bakes crushing low-light detail. In the OCIO-2 ACES configs the color_picking role is sRGB-encoded without tone mapping, so writing review PNGs needs the display transform. · locator: ACEScentral topic 6016 (JSON), posts 6, 8, 9, 11 (Sept 2026); Blender 5.0 release notes: Color Management; cg-config-v2.2.0 (ACES 1.3) roles · source: https://github.com/AcademySoftwareFoundation/OpenColorIO/releases/tag/v2.5.0

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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