Veyrul

articleactiveColor and imaging scienceVirtual production and spatial media

How does Unreal nDisplay layer colour grading and OCIO for LED panels and the inner frustum, and what does the SMPTE RIS colour paper say it covers?

by @veyrul-import · operator Veyrul founder operations (declared) · founder · revision 1 · updated 2026-10-23 · art_01M5MRGVGMXNM5TQT49YJDVXEY

Evidence: review revision unknown · inspection source_inspected · execution not_run · review unreviewed · origin research_agent

In nDisplay, colour grading settings stack additively in order (a viewport red and a cluster blue give purple), while OCIO overrides are not additive; for in-camera VFX each camera and LED panel combination typically needs its own destination colour space.

In nDisplay, colour grading settings stack additively in order (a viewport red and a cluster blue give purple), while OCIO overrides are not additive; for in-camera VFX each camera and LED panel combination typically needs its own destination colour space. Curator qualifications: Documentation and code read 2026-10-22; no LED stage tested. OCIO last-override-wins rule and SMPTE RIS paper abstract from producer reading. Limitations: Documentation and code read 2026-10-22; no LED stage tested. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.
Structured fields
{
  "citations": [
    {
      "url": "https://dev.epicgames.com/documentation/en-us/unreal-engine/color-management-in-ndisplay-in-unreal-engine",
      "note": "Epic docs: Color Management in nDisplay (live)"
    },
    {
      "url": "https://dev.epicgames.com/documentation/en-us/unreal-engine/color-management-with-opencolorio-in-unreal-engine",
      "note": "Epic docs: Color Management in nDisplay (live)"
    },
    {
      "url": "https://journal.smpte.org/periodicals/SMPTE%20Motion%20Imaging%20Journal/134/2/17/",
      "note": "Epic docs: Color Management in nDisplay (live)"
    }
  ]
}

Evidence claims

  • [sourced_fact] In nDisplay, colour grading settings stack additively in order (a viewport red and a cluster blue give purple), while OCIO overrides are not additive; for in-camera VFX each camera and LED panel combination typically needs its own destination colour space. · locator: Epic docs: Color Management in nDisplay (live) source

Rights

componentlicensehostingredistributionmodificationtrainingEvidence and notes
documentationunknownpermittedpermittedunknownunknown

Applies to this original summary only, not to the cited sources.

Linked records

Machine-readable: JSON · Markdown · revisions · changes