Every number, in one place

Delivery Specifications

Resolution, frame rate, aspect ratio, color, formats and deliverables. Set these before your first scene.
Section06
MasterUHD 3840 × 2160
Frame rate24.000 fps
Version

This is the master technical specification for THRESHOLDS.
These numbers are locked. Set them before you start a scene, a render, or a composite — not after.
If any other document on this production disagrees with this page, this page wins and the discrepancy is a bug. Report it to the VFX Supervisor. Production Bible §1.7 mirrors this page.

Resolution
3840 × 2160
UHD. Render and deliver.
Aspect ratio
16:9
1.78:1, full raster. No letterbox.
Frame rate
24.000 fps
True 24. Not 23.976.
Color
ACEScg
ACES 1.2, linear, end to end.
Overview

The Show

THRESHOLDS is a high-end episodic television series and technology validation project, built around a single ambition: proving that a lean senior team with the right pipeline architecture can produce studio-quality results at series scale. The pipeline is Unreal Engine-centric and Reallusion ecosystem-anchored, with an ACES-compliant color pipeline end to end.
The first deliverable is a teaser trailer — the proof of concept that validates the pipeline before the series goes into full production. Every specification on this page is set to series standard, deliberately. Nothing produced for the teaser should have to be redone when the series starts.
Show
Show codeTHS
FormatEpisodic television series — full CG, no live-action plates
Current deliverableTeaser trailer — proof of concept
Current phasePre-Production / Crew Assembly
Season countTo be lockedOpen
Episode countTo be lockedOpen
Per-episode runtimeTo be lockedOpen
Full CG — what it means for you

There is no live-action plate photography on this production. Every frame originates in Unreal Engine. plates/ exists in the shot tree as a reserved folder and is not active. The plate-dependent departments — mm (Matchmove), ra (Rotoanim) and roto (Rotoscoping) — are not active on Thresholds. Camera solve is not a department here; the camera comes from Jetset virtual-camera takes via Live Link into UE5 and lands in lay/.

Specification

Picture

Picture
Delivery master resolution3840 × 2160 (UHD)
Final render resolution3840 × 2160 (UHD)
Temp / WIP render resolution1920 × 1080 (Full HD) — iteration only, never a deliverable
Active image area3840 × 2160 — full raster, no letterbox, no matte
Aspect ratio16:9 (1.78:1)
Pixel aspect ratio1.0 (square)
Scan typeProgressive
Frame rate24.000 fps — true 24, non-drop. Not 23.976.
TimecodeNon-drop @ 24 fps. First frame of programme 01:00:00:00.
Frame numbering4-digit minimum, sequences start at 1001
Why these two numbers

Why UHD. Streamer VFX specifications require an intended active image area of at least UHD — 3840 pixels wide. Thresholds is full CG in Unreal Engine, so rendering at UHD costs render time and nothing else: there is no plate to re-scan and no camera negative to go back to. Downres is always possible. Upres is not.

Why a 1080 temp resolution. Iteration is where render time is actually spent — lighting look, animation blocking, FX tuning, dailies. Full HD is exactly half UHD in both axes, so a temp render is a clean 2:1 integer downscale: identical framing, identical composition, no resampling artefacts and no reframing risk when the shot goes final. Roughly a quarter of the pixels, and therefore roughly a quarter of the render time per iteration.

1080 is never a deliverable. Temp renders exist to make a creative decision and are thrown away. Anything that leaves the show — master, archive, client review, anything downstream of shot approval — is rendered at UHD. There is no upres step in this pipeline and none is sanctioned: a shot delivered from a 1080 render is a re-render, not a fix.

Why true 24, not 23.976. It is cinema-native, the timecode math is clean, and it matches UE5 Sequencer and DCP. If a future NTSC-derived broadcast chain requires 23.976, that is a conform decision at delivery, not a production decision. Do not render at 23.976.

Specification

Color

Color pipeline
ConfigOfficial ACES 1.2 OCIO config — mandatory in every tool, installed before your first scene
Working spaceACEScg (linear)
Viewing transformACES RRT + sRGB ODT (or display-appropriate ODT)
Texture authoringACES color space via Substance Painter
DaVinci ResolveInput ACEScg linear, working space ACES, output display-appropriate ODT
Two hard rules

Never bake a display transform into the composite. Apply it for viewing only. A comp that leaves Nuke with an ODT baked in is unusable downstream and will be sent back.

Never work outside ACES unless instructed by the VFX Supervisor.

Specification

Image Formats

Render and composite output
StageSpecification
Unreal Engine render output EXR sequence — 16-bit half float minimum, 32-bit for close-up / hero shots. ACEScg linear. 3840 × 2160 @ 24 fps.
Nuke composite output EXR sequence — 16-bit half float minimum. ACEScg linear, no display transform baked in. 3840 × 2160 @ 24 fps.
Required AOVs (minimum) beauty   char   env   fx   depth   mv
depth (Z) and mv (motion vectors) are required, not optional — see the note below. Additional passes per shot with VFX Supervisor approval.
Frame handles 8 frames minimum — head and tail, every shot and every cache.
Render output naming SEQXXX_shXXXX_<pass>.<frame>.exr
No THS_ prefix on shot files. See Naming Conventions.
Why depth and mv are required, not optional

Depth of field and motion blur are applied in Nuke, not in-engine. Nuke's ZDefocus needs a Z-depth channel to defocus by distance, and VectorBlur needs motion vectors — without them Nuke falls back to optical-flow estimation, which breaks on exactly the fast Jetset virtual-camera moves this show is built around.

A four-pass render cannot execute the comp structure the pipeline specifies. These two passes are cheap to render and expensive to retrofit: a missing pass means re-rendering the shot.

Specification

Deliverables

Delivery masters are the second and last place the show code appears. Files leaving the production for a client, festival or partner carry the THS_ prefix and live in delivery/{client_review,final,archive}/.
Delivery masters
PurposeFormat, resolution and color
Mastering ProRes 4444 — 3840 × 2160 @ 24 fps, ACES metadata preserved. → delivery/final/
Archive EXR sequence — 3840 × 2160 @ 24 fps, linear ACEScg, full ACES metadata. → delivery/archive/
Review / dailies H.264 or H.265 — 3840 × 2160 @ 24 fps, sRGB display transform applied. → delivery/client_review/
Naming THS_<Deliverable>_v<NNN>_YYYY-MM-DD.<ext>
e.g. THS_Teaser_v003_2026-08-01.mov
No DPX on this show

The color pipeline is ACES linear end to end, so EXR is the only image-sequence format in use. DPX exists for camera-log workflows — Thresholds has no camera. If someone asks you for DPX, escalate to the VFX Supervisor rather than converting.

Specification

Audio

Audio is not yet a staffed department on Thresholds. The specification below is the working minimum for the teaser. The full series audio deliverable set gets written when a sound lead comes on.
Audio
Sample rate48 kHz
Bit depth24-bit
Channel layout (teaser)Stereo
Series specificationTo be lockedOpen
5.1 printmaster, M&E stems, discrete stems, loudness target.
Conform warning

Audio must be laid against the 24.000 fps non-drop timeline. Do not conform audio at 23.976 — the picture is true 24 and the two will drift.

Tracked, not forgotten

Open Decisions

Three items on this page are deliberately unlocked. Everything else is final. If you are about to start a scene, a render or a composite, you have every number you need — none of these blocks you.
01
Season structure
Season count, episode count and per-episode runtime. Owned by the Director and VFX Supervisor. Does not affect any technical setting on this page.
02
Full series audio spec
5.1 printmaster, M&E stems, discrete stem delivery and loudness target. Blocked on a sound lead being onboarded. The teaser spec above holds until then.
03
Multi-episode folder tier
The folder structure still assumes one film-length deliverable: editorial/ holds three fixed names and there is no episode tier above sequences/. It must be designed before any episode-scoped work starts — retrofitting it means migrating the whole Drive.
04
Everything else is locked
Resolution, aspect ratio, frame rate, timecode, color, image formats and deliverables were locked 2026-07-30 by the VFX Supervisor. Do not deviate without written sign-off.