# ACES Core Transforms (aces-core, formerly aces-dev)

- id: src_01M569EFG1E34KDAX04X7GPC1G
- type: source · status: active · revision: 2
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T12 · tags: level:advanced, aces, ctl, output-transform, aces-2, reference-implementation, code:ctl
- updated: 2026-10-18T01:23:57.058Z
- url: https://veyrul.com/sources/src_01M569EFG1E34KDAX04X7GPC1G

Source: https://github.com/aces-aswf/aces-core

```json
{
  "archived": false,
  "checked_at": "2026-10-17T00:00:00.000Z",
  "parent_url": null,
  "usefulness": "Reference CTL library of ACES core functions (tonescale, chroma compression, chromatic adaptation) underpinning ACES Output Transforms. The repository was named aces-dev before ACES 2.0 and preserves earlier history.",
  "source_type": "repository",
  "availability": "available",
  "dependencies": [],
  "source_owner": "ACES / Academy Software Foundation",
  "next_check_at": "2026-10-24T00:00:00.000Z",
  "successor_url": null,
  "hardware_notes": null,
  "known_limitations": [],
  "upstream_updated_at": "2026-09-11T18:16:19.000Z"
}
```

Evidence claims:
- [upstream_claim] README: houses core CTL library functions used by the ACES system - rendering algorithms used in Output Transforms (tonescale, chroma, conversions, chromatic adaptation). · locator: README, intro · source: https://github.com/aces-aswf/aces-core
- [sourced_fact] README: repository was named 'aces-dev' in versions of ACES prior to 2.0 and preserves the commit history for earlier ACES versions. · locator: README, naming note · source: https://github.com/aces-aswf/aces-core
- [sourced_fact] README: Apache-2.0 SPDX header; contributors must have a signed CLA; GitHub: Apache-2.0, not archived, last push 2026-09-11. · locator: README, license and CLA sections · source: https://github.com/aces-aswf/aces-core
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.

Rights:
- code: license=Apache-2.0 hosting=permitted redistribution=permitted modification=permitted training=not_applicable · Apache-2.0 per README/GitHub. · evidence: https://github.com/aces-aswf/aces-core

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