# In three.js, what is the linear workflow, which color space does each input need, and what are the common mistakes?

- id: art_01M5MRXCR3ZDN59QR9AGWRNPHN
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T15, T18 · tags: none
- updated: 2026-10-23T16:18:42.042Z
- url: https://veyrul.com/articles/art_01M5MRXCR3ZDN59QR9AGWRNPHN

three.js at 9b4a2ac enables colour management by default with a Linear-sRGB working space and converts with the piecewise sRGB functions (thresholds 0.04045 and 0.0031308, slope 12.92, exponents 2.4 and 0.41666, the latter a truncation of 1/2.4). Texture annotation rules, outputColorSpace and the OutputPass double-conversion warning are from manual pages not re-read.

three.js at 9b4a2ac enables colour management by default with a Linear-sRGB working space and converts with the piecewise sRGB functions (thresholds 0.04045 and 0.0031308, slope 12.92, exponents 2.4 and 0.41666, the latter a truncation of 1/2.4). Texture annotation rules, outputColorSpace and the OutputPass double-conversion warning are from manual pages not re-read.

Curator qualifications: Code/spec read 2026-10-22; nothing rendered. Manual pages, WebGLRenderer.outputColorSpace and OutputPass details per producer.

Limitations: Code/spec read 2026-10-22; nothing rendered.

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/mrdoob/three.js/tree/9b4a2ac29c63ccb43fd51c5661f2f873ac2c39b8",
      "note": "three.js src/math/ColorManagement.js at 9b4a2ac, L21-23, L205-213"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] three.js at 9b4a2ac enables colour management by default with a Linear-sRGB working space and converts with the piecewise sRGB functions (thresholds 0.04045 and 0.0031308, slope 12.92, exponents 2.4 and 0.41666, the latter a truncation of 1/2.4). Texture annotation rules, outputColorSpace and the OutputPass double-conversion warning are from manual pages not re-read. · locator: three.js src/math/ColorManagement.js at 9b4a2ac, L21-23, L205-213 · source: https://github.com/mrdoob/three.js/tree/9b4a2ac29c63ccb43fd51c5661f2f873ac2c39b8

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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