R06.05.02.01 · TASK CLASS

Chroma keying & spill suppression

Pull clean keys with edge detail and spill control.

20 project-authored proposals · taxonomy v1.1 · 0 new benchmark runs. Verifiers and partial-credit rules below are designs, not executed results.

Typical applications: After Effects (Keylight) · Nuke · Fusion
Class GUI-need label: G3 · GUI-only

Task proposals · 20

Expand to inspect the complete original wording and proposed checks. Original proposal text remains English in both interfaces.

R06.05.02.01-T01 Pull a clean Keylight key over a background plate

Original instruction

In After Effects, comp 'GS_Shot01' (fixtures/gs01.aep) has a 5 s green-screen interview (fixtures/gs01.mov) and plate fixtures/office_plate.exr. Key the talent with Keylight (screen matte clip black/white, softness as needed), composite over the plate, and render out/gs01_comp.mov plus out/gs01_alpha.mov (alpha as luma).

Platforms: mac · macOS win · Windows
Applications: After Effects
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click vis · Visual judgment geom · Precise geometry
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 3 / 5

Proposed verifier

Per frame alpha vs GT matte: IoU (alpha > 0.5) ≥ 0.97; hair-region SAD ≤ GT threshold; background region alpha ≤ 0.02 (no holes or noise); comp equals alpha-blend of plate (PSNR ≥ 35 dB vs GT comp). Scripting disabled; .aep probe shows Keylight.

Proposed partial credit

40% core matte IoU; 25% hair detail; 20% clean background; 15% correct comp/output.

R06.05.02.01-T02 Suppress green spill on edges in Nuke

Original instruction

In Nuke script fixtures/spill.nk, the keyed actor shows green spill on hair and shoulders. Add despill (e.g. Keylight despill, HueCorrect or a custom expression) so edge colors read neutral without shifting skin hue, and write out/spill_fixed.####.exr (premultiplied RGBA).

Platforms: lin · Linux mac · macOS win · Windows
Applications: Nuke
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 3 / 5

Proposed verifier

On a 6 px GT edge band: mean max(0, G − max(R,B)) ≤ 0.02; GT skin mask mean hue within ±5° of a clean reference; alpha unchanged vs input (max diff ≤ 1e-3); output premultiplied (RGB ≤ alpha). Nuke's Script Editor and terminal modes (nuke -t/-x) are disabled, and .nk or render files not written by the Nuke GUI process are rejected.

Proposed partial credit

50% spill metric; 25% skin hue preserved; 15% alpha unchanged; 10% correct premult EXR.

R06.05.02.01-T03 Match a keyed foreground's levels to the plate

Original instruction

In After Effects comp 'Integration' (fixtures/integ.aep) the keyed foreground looks flat against a contrasty dusk plate. Adjust the foreground's black and white levels and color balance (Levels/Curves per channel) so it sits in the plate. Render out/integ.mov.

Platforms: mac · macOS win · Windows
Applications: After Effects
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 3 / 5

Proposed verifier

On GT foreground mask vs plate: 2nd and 98th luma percentiles within 3% of the plate's; per-channel black point offsets within 0.01; mean foreground b* shift toward plate within ±3 of GT integrated reference; alpha unchanged. ExtendScript and aerender are disabled for the agent, and .aep or out/ files written by any process other than After Effects or Media Encoder are rejected (writes logged by process).

Proposed partial credit

40% luma percentile match; 30% channel black points; 20% color balance; 10% alpha unchanged.

R06.05.02.01-T04 Key a wrinkled, unevenly lit green screen with core and edge mattes

Original instruction

Nuke script fixtures/uneven.nk: an actor in front of a wrinkled, gradient-lit green screen with a shadow. Build a core matte, a separate soft edge matte and garbage mattes (roto), combine them, and output out/uneven_alpha.####.exr and the comp over fixtures/plate.exr.

Platforms: lin · Linux mac · macOS win · Windows
Applications: Nuke
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: path · Continuous path click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 4 / 5

Proposed verifier

Per frame vs GT matte: IoU ≥ 0.97; background alpha 99th percentile ≤ 0.03 (wrinkles/shadow removed); edge SAD in trimap ≤ threshold; script contains ≥ 2 keyers and a Roto garbage matte merged. Nuke's Script Editor and terminal modes (nuke -t/-x) are disabled, and .nk or render files not written by the Nuke GUI process are rejected.

Proposed partial credit

35% core IoU; 25% clean background despite wrinkles; 25% edge quality; 15% core/edge/garbage structure.

R06.05.02.01-T05 Preserve motion blur on a fast hand against blue screen

Original instruction

In After Effects, key fixtures/blue_hand.mov (fast hand wave, heavy motion blur, blue screen) with Keylight and refine so the motion-blurred hand edges keep partial alpha rather than hard edges. Comp over fixtures/desk_plate.png and render out/hand_comp.mov and alpha.

Platforms: mac · macOS win · Windows
Applications: After Effects
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 4 / 5

Proposed verifier

In GT motion-blur regions: alpha MAE vs GT ≤ 0.06 and fraction of partial alpha (0.05–0.95) ≥ 70% of GT's; core IoU ≥ 0.96; no blue fringe (B − max(R,G) on edge band ≤ 0.02). ExtendScript and aerender are disabled for the agent, and .aep or out/ files written by any process other than After Effects or Media Encoder are rejected (writes logged by process).

Proposed partial credit

40% motion-blur alpha fidelity; 25% core matte; 20% no blue fringe; 15% comp output.

R06.05.02.01-T06 Key with a Delta Keyer and clean plate in Fusion

Original instruction

In DaVinci Resolve Fusion (or Fusion Studio), comp fixtures/delta.comp has a green-screen shot and an empty clean plate frame. Use Delta Keyer with the clean plate input to key the presenter, clean the matte, and merge over fixtures/studio_bg.exr. Render out/delta_comp.mov and out/delta_alpha.mov.

Platforms: mac · macOS win · Windows lin · Linux
Applications: Fusion · DaVinci Resolve
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click drag · Drag & drop vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: None declared
Proposed difficulty: 3 / 5

Proposed verifier

Per frame alpha vs GT IoU ≥ 0.97; hair SAD ≤ threshold; background alpha ≤ 0.02; .comp file shows DeltaKeyer with CleanPlate input connected. Fusion's Console, FuScript and the Resolve API are disabled, and .comp or render files not written by the Fusion process are rejected.

Proposed partial credit

35% IoU; 25% hair; 20% clean background; 20% clean-plate workflow in comp.

R06.05.02.01-T07 Key a talking head with Premiere's Ultra Key

Original instruction

In Premiere Pro, sequence 'Webinar' has a well-lit green-screen talking head over a slide background. Apply Ultra Key, tune matte generation and cleanup so there are no holes or green edges, and export out/webinar.mp4.

Platforms: mac · macOS win · Windows
Applications: Premiere Pro
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 2 / 5

Proposed verifier

Derived alpha (diff vs background-only render) vs GT: IoU ≥ 0.96; holes inside GT subject ≤ 0.3%; edge band green excess ≤ 0.03; .prproj contains Ultra Key on the clip. ExtendScript/UXP panels are disabled, ffmpeg is absent, and .prproj or export files not written by Premiere or Media Encoder are rejected (writes logged by process).

Proposed partial credit

45% matte IoU; 20% no holes; 25% no green edges; 10% effect present.

R06.05.02.01-T08 Key a glass of water and smoke with true partial transparency

Original instruction

Nuke script fixtures/glass_smoke.nk: a hand pours water into a glass while smoke drifts, all in front of green. Key so the glass, water and smoke keep partial transparency and refractions show the new plate fixtures/kitchen.exr. Write out/glass_comp.####.exr and alpha.

Platforms: lin · Linux mac · macOS win · Windows
Applications: Nuke
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click path · Continuous path vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app long · Long-horizon
Proposed difficulty: 5 / 5

Proposed verifier

In GT glass/water/smoke masks: alpha MAE vs GT (difference-matted) ≤ 0.07; partial-alpha share within 20% of GT; comp PSNR vs GT comp ≥ 30 dB in those regions; hand IoU ≥ 0.97; no green tint in transparent regions (G excess ≤ 0.02). Nuke's Script Editor and terminal modes (nuke -t/-x) are disabled, and .nk or render files not written by the Nuke GUI process are rejected.

Proposed partial credit

40% transparent-region alpha; 20% comp fidelity; 20% hand matte; 20% no green tint.

R06.05.02.01-T09 Recover fine flyaway hair with an additive edge key

Original instruction

After Effects comp 'Hair_CU' (fixtures/hair.aep): back-lit curly hair against green with fine strands. Build a hard core matte, a soft hair matte with a second key, and add back hair detail with an additive/screen-based technique so strands survive; despill strands to neutral. Render out/hair_comp.mov and alpha.

Platforms: mac · macOS win · Windows
Applications: After Effects
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click path · Continuous path vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 5 / 5

Proposed verifier

GT hair trimap: SAD and gradient error ≤ GT thresholds (from expert key); strand recall (GT strand skeleton pixels with alpha ≥ 0.2) ≥ 80%; strand G excess ≤ 0.02; core IoU ≥ 0.98. ExtendScript and aerender are disabled for the agent, and .aep or out/ files written by any process other than After Effects or Media Encoder are rejected (writes logged by process).

Proposed partial credit

35% hair SAD/gradient; 25% strand recall; 20% strand despill; 20% core matte.

R06.05.02.01-T10 Remove tracking markers from a keyed backdrop

Original instruction

Fusion comp fixtures/markers.comp: a green screen with 12 tracking-marker crosses and a moving camera. Key the actor and make sure no marker remnants appear in the alpha, using garbage mattes or a marker removal step, without cutting into the actor when he passes over markers. Render out/markers_alpha.mov.

Platforms: mac · macOS win · Windows lin · Linux
Applications: Fusion
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: path · Continuous path click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: None declared
Proposed difficulty: 3 / 5

Proposed verifier

Per frame: alpha in GT marker regions (when not behind the actor) ≤ 0.02; actor IoU ≥ 0.97 including frames where he overlaps markers; no alpha flicker in background (temporal std ≤ 0.01). Fusion's Console, FuScript and the Resolve API are disabled, and .comp or render files not written by the Fusion process are rejected.

Proposed partial credit

40% markers removed; 40% actor intact over markers; 20% stable background.

R06.05.02.01-T11 Integrate a key with light wrap and edge blending

Original instruction

After Effects comp 'Sunset_Walk' (fixtures/sunset.aep): keyed talent over a bright sunset plate looks cut out. Add a light wrap from the plate onto the talent edges (≈ 8–15 px falloff), match edge softness to the plate's focus, and render out/sunset_comp.mov.

Platforms: mac · macOS win · Windows
Applications: After Effects
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 4 / 5

Proposed verifier

On a 15 px inner edge band: luminance increases toward plate brightness (mean +4–15 L* vs unwrapped) and correlates with local plate brightness (r ≥ 0.6); interior (beyond 20 px) unchanged ≤ 1 ΔE; edge sharpness within 20% of plate edge sharpness. ExtendScript and aerender are disabled for the agent, and .aep or out/ files written by any process other than After Effects or Media Encoder are rejected (writes logged by process).

Proposed partial credit

40% light wrap present and plate-driven; 25% interior untouched; 25% edge softness match; 10% render.

R06.05.02.01-T12 Build an IBK keying setup in Nuke

Original instruction

In Nuke script fixtures/ibk.nk, key the uneven blue-screen shot with an IBKColour node generating a clean screen and IBKGizmo pulling the matte, then merge with a Keylight core matte. Write out/ibk_alpha.####.exr and comp over fixtures/plate.exr.

Platforms: lin · Linux mac · macOS win · Windows
Applications: Nuke
Interfaces: desk · Desktop GUI
GUI need · task setting: G2 · GUI-essential
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click drag · Drag & drop vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app tutorial · Follow docs/tutorial
Proposed difficulty: 3 / 5

Proposed verifier

Script parse: IBKColour → IBKGizmo connected (c input), merged with Keylight core; output alpha vs GT: IoU ≥ 0.97, edge SAD ≤ threshold; background alpha ≤ 0.02. Nuke's Script Editor and terminal modes (nuke -t/-x) are disabled, and .nk or render files not written by the Nuke GUI process are rejected.

Proposed partial credit

30% IBK node graph; 35% matte IoU; 20% edge quality; 15% clean background.

R06.05.02.01-T13 Key a shot with Resolve's 3D Keyer on the Color page

Original instruction

In DaVinci Resolve, timeline 'Promo_GS' clip 2 is a green-screen product shot. On the Color page use the 3D qualifier to key the green, invert, clean the matte, output alpha via the node alpha output, and composite over the background clip on V1. Render out/promo_gs.mov.

Platforms: mac · macOS win · Windows lin · Linux
Applications: DaVinci Resolve
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: path · Continuous path click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: None declared
Proposed difficulty: 2 / 5

Proposed verifier

Derived alpha vs GT IoU ≥ 0.96; edge green excess ≤ 0.03; product interior holes ≤ 0.3%; node graph has 3D qualifier and alpha output connected. Resolve scripting (Console and external API) is disabled, and renders or DRX files not written by the Resolve process are rejected (writes logged by process).

Proposed partial credit

45% matte IoU; 25% edges clean; 15% no holes; 15% node setup.

R06.05.02.01-T14 Suppress spill on glasses and chrome without killing reflections

Original instruction

Nuke script fixtures/specs.nk: actor wears glasses and a chrome watch that reflect the green screen. Key and despill so the lens and chrome areas lose the green cast but keep plausible reflections of the new plate (fixtures/street.exr) via a reflection replacement or hue-limited despill. Write out/specs_comp.####.exr.

Platforms: lin · Linux mac · macOS win · Windows
Applications: Nuke
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click path · Continuous path vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 4 / 5

Proposed verifier

GT lens/chrome masks: mean G excess ≤ 0.02; luminance structure correlation with original ≥ 0.7 (reflections kept); skin hue within ±5° of clean reference; matte IoU ≥ 0.97 overall. Nuke's Script Editor and terminal modes (nuke -t/-x) are disabled, and .nk or render files not written by the Nuke GUI process are rejected.

Proposed partial credit

40% spill removed on reflective parts; 25% reflections retained; 20% skin unaffected; 15% matte quality.

R06.05.02.01-T15 Key four shots of one setup with per-shot adjustments

Original instruction

After Effects project fixtures/gs_sequence.aep has 4 shots from one green-screen setup (lighting drifted between shots). Key all four over plate fixtures/lab.exr, adjusting per shot so each meets the same quality, and render out/gs_seq.mov (shots in order).

Platforms: mac · macOS win · Windows
Applications: After Effects
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 3 / 5

Proposed verifier

Per shot vs GT matte: IoU ≥ 0.97 and edge SAD ≤ threshold; per-shot spill ≤ 0.02 on edge band; shot order and durations preserved. One copied setting fails shot 3 by design. ExtendScript and aerender are disabled for the agent, and .aep or out/ files written by any process other than After Effects or Media Encoder are rejected (writes logged by process).

Proposed partial credit

80% four shots meet matte+spill targets (20 points each); 20% order/durations.

R06.05.02.01-T16 Key a subject wearing green-tinted clothing using holdouts

Original instruction

Fusion comp fixtures/greenshirt.comp: the actor's teal shirt partly keys out against the green screen. Pull the key, then protect the shirt with a tracked holdout (polygon/B-spline) or a secondary key so the shirt is fully opaque, while hair edges stay soft. Render out/greenshirt_alpha.mov and comp.

Platforms: mac · macOS win · Windows lin · Linux
Applications: Fusion
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: path · Continuous path geom · Precise geometry vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: None declared
Proposed difficulty: 3 / 5

Proposed verifier

GT shirt mask alpha ≥ 0.98 on ≥ 98% of pixels every frame; hair trimap SAD ≤ threshold; overall IoU ≥ 0.97; shirt color unchanged (ΔE2000 ≤ 2 vs source). Fusion's Console, FuScript and the Resolve API are disabled, and .comp or render files not written by the Fusion process are rejected.

Proposed partial credit

40% shirt fully opaque; 25% hair soft edges; 20% overall IoU; 15% shirt color intact.

R06.05.02.01-T17 Control: key the T07 talking head with ffmpeg filters

Original instruction

Control pair of T07 (CLI half). Produce out/webinar_cli.mp4 from fixtures/webinar_gs.mov and fixtures/slides_bg.mp4 using ffmpeg chromakey/colorkey and despill filters only, meeting T07's matte and edge targets.

Platforms: lin · Linux mac · macOS win · Windows
Applications: ffmpeg
Interfaces: term · Terminal
GUI need · task setting: CL · CLI-sufficient
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: code · Code & commands
Work product: WP05 · Time-based media
Conditions: None declared
Proposed difficulty: 2 / 5

Proposed verifier

Same derived-alpha IoU, hole and edge-spill metrics as T07. Paired with T07 to measure how far parameter-only keying gets without interactive matte inspection.

Proposed partial credit

45% matte IoU; 20% no holes; 25% edges; 10% valid output.

R06.05.02.01-T18 Extract the subject's floor shadow and composite it on the plate

Original instruction

Nuke script fixtures/dancer_shadow.nk: a dancer on a green floor casts a soft shadow. Key the dancer and separately extract the cast shadow as a matte (screen-difference with the clean plate), then composite both onto fixtures/plaza.exr with the shadow multiplied at matching density. Write out/dancer_comp.####.exr.

Platforms: lin · Linux mac · macOS win · Windows
Applications: Nuke
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click path · Continuous path vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 4 / 5

Proposed verifier

GT shadow mask: shadow density (plate luminance ratio) within ±0.08 of GT; shadow matte IoU ≥ 0.85; no green in shadow area (G excess ≤ 0.01); dancer matte IoU ≥ 0.97; feet contact without gaps (alpha continuity). Nuke's Script Editor and terminal modes (nuke -t/-x) are disabled, and .nk or render files not written by the Nuke GUI process are rejected.

Proposed partial credit

35% shadow extracted; 20% shadow density; 25% dancer matte; 20% no green, feet contact.

R06.05.02.01-T19 Finish a three-shot green-screen sequence to plate

Original instruction

After Effects project fixtures/scene14.aep: 3 green-screen shots to be composited over 3 plate shots. For each: key, despill, match levels and color to plate, add light wrap, match background defocus to the lens (plates are sharp; foreground has shallow DOF), and add matching grain. Render out/sc14_comp.mov.

Platforms: mac · macOS win · Windows
Applications: After Effects
Interfaces: desk · Desktop GUI
GUI need · task setting: G3 · GUI-only
GUI need · ordinary access: G2 · GUI-essential
Interaction primitives: click · Point & click path · Continuous path vis · Visual judgment
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app long · Long-horizon
Proposed difficulty: 5 / 5

Proposed verifier

Per shot: matte IoU ≥ 0.97 and edge SAD ≤ threshold; spill ≤ 0.02; FG/plate luma percentiles within 3%; background blur radius within 20% of GT DOF estimate; grain power spectrum ratio FG/BG 0.8–1.25. ExtendScript and aerender are disabled for the agent, and .aep or out/ files written by any process other than After Effects or Media Encoder are rejected (writes logged by process).

Proposed partial credit

30% mattes; 15% spill; 30% color/levels and light wrap; 25% background defocus and grain match.

R06.05.02.01-T20 Deliver a correctly premultiplied keyed EXR sequence from Nuke

Original instruction

Nuke script fixtures/deliver.nk keys a green-screen shot with Keylight plus a roto garbage matte. Add edge extend for the RGB under soft edges, then write out/fg_premult.####.exr (RGBA, half float, ZIP1, premultiplied) for the VFX vendor as specified in input/vendor_spec.pdf.

Platforms: lin · Linux mac · macOS win · Windows
Applications: Nuke
Interfaces: desk · Desktop GUI
GUI need · task setting: G2 · GUI-essential
GUI need · ordinary access: CL · CLI-sufficient
Interaction primitives: click · Point & click drag · Drag & drop
Work product: WP05 · Time-based media
Conditions: licensed · Licensed pro app
Proposed difficulty: 3 / 5

Proposed verifier

EXR headers: half float, ZIP1 compression, RGBA; RGB ≤ alpha everywhere (premultiplied); unpremultiplied edge colors show no green or black fringe (edge-extended); matte IoU ≥ 0.97 vs GT; frame range per spec. Nuke's Script Editor and terminal modes (nuke -t/-x) are disabled, and .nk or render files not written by the Nuke GUI process are rejected.

Proposed partial credit

25% EXR spec; 25% correct premultiplication; 25% edge extend; 25% matte quality.

Mapped research references

Existing benchmark-to-class links from the research catalog. They are not record-level annotations, executions or product endorsements.

Chroma keying & spill suppression

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