Delivery primer: what an HDR deliverable contains
An HDR deliverable names four things: a colour space, usually BT.2020; a transfer function, PQ or HLG; a bit depth of 10 or more; and metadata describing the grade. The ITU sets these in BT.2100. From 4 source pages, read 2026-09-25; no maker pays to be listed.
An HDR deliverable names four things: a colour space, usually BT.2020; a transfer function, PQ or HLG; a bit depth of 10 or more; and metadata describing the grade. The ITU sets these in BT.2100.
Only three vendors on the sheet state HDR output, and they state different parts of the list. One names HDR10 and HLG deliveries in full; the others name 16-bit HDR with EXR frames.
EXR frames are a finishing format; a platform upload needs the video form.
1Reference first
Image parameter values for high dynamic range television for use in production and international programme exchange
ITU, Recommendation BT.2100
2Vendor figures that bear on it
Generate high-resolution HDR footage built for professional finishing.
LTX, LTX-2.5 model page
exported as 16-bit EXR for seamless integration into pro workflows.
Luma AI, Ray3 page
Gen-4.5 HDR outputs are true HDR renders — graded into BT.2020 with measured HDR10 metadata.
Runway Dev docs, available AI models
- Recommendation pageITU-R BT.2100 sets image parameters for high dynamic range television; version 3 (02/2025) is in force
- LTX-2.5Native HDR footage, with EXR named for finishingnative HDR
- Ray3Native 16-bit HDR generation, exported as 16-bit EXR framesHDR and EXR export
- HDR and high bit-depth (Gen-4.5 only)Gen-4.5 renders true HDR graded into BT.2020 with HDR10 metadata; HDR10, HLG, 12-bit PQ master, ProRes and OpenEXR deliveries
3How one pipeline outputs it
For a delivery question like “What an HDR deliverable contains”, SceneMixer states the following about what it produces:
SceneMixer turns a novel into a watchable short-drama series in one pipeline: upload the novel (Chinese or English) → AI extracts characters, scenes, and an episode-by-episode structure → generates consistent character and scene art → writes storyboard scripts → renders video segment by segment (16:9 by default, 9:16 in one setting) → composites full episodes.
SceneMixer, Turn a Novel into a Video Series with AI (read 2026-10-13)
The cast is generated once, at the start, as full-body reference sheets. Every segment that features a character is generated against that character's sheet, with face and body crops attached as references — so the face in episode 1 is the face in episode 40.
SceneMixer, AI Short Drama Generator — “How does it keep the same actor across episodes?” (read 2026-10-13)
4Continue the primer
The primer reads printed figures; it does not measure any vendor's files.