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READ THIS FIRST

This file is a deconstruction of a FINISHED, HUMAN-EDITED commercial.
It is post-production analysis: speed ramps, composites, rotoscoping,
mirror effects, digital zooms.

Seedance CANNOT do any of these. It simulates a camera in a world.
It does not run an editing timeline.

USE THIS FILE FOR: Layer A only, the Director's Brief. Energy arc,
density contrast, spotting where a signature moment belongs.

NEVER USE THIS FILE FOR: Layer B, the generation prompts. Do not lift
any vocabulary from below into a prompt. Doing so is the single
fastest way to produce jittering, drifting, unusable output.

For prompt language, see seedance-spec.md and worked-examples.md.
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# VIDEO EDITING EFFECTS BREAKDOWN  
Reference: Hoka Athletic Brand Film — 21.2s

## SHOT-BY-SHOT EFFECTS TIMELINE

SHOT 1 (00:00-00:01) — Opening Impact  
• EFFECT: Speed ramp (deceleration) + heavy motion blur  
• Camera enters mid-whip-pan with extreme diagonal motion blur and light streaks  
• Dutch angle at approximately 30° during the transition phase  
• Speed decelerates rapidly from blur to recognizable image  
• Creates explosive energy — the viewer is thrown into the action

SHOT 2 (00:01-00:02) — Stadium Wide  
• EFFECT: Vertical mirror/symmetry  
• The entire frame is mirrored along the vertical center axis  
• Creates a surreal, kaleidoscopic doubling of the stadium architecture  
• Two identical profile views of the subject face each other  
• Static composition — no camera movement during the mirror effect

SHOT 3 (00:02-00:03) — High-Angle Tracking  
• EFFECT: White bloom flash (entry) + digital zoom (scale-in) + camera shake/vibration  
• Enters from a white bloom transition — overexposed layer with blown highlights, faint outlines of runner visible through the glow  
• Aggressive digital zoom punching INTO the frame (scale increases)  
• High-frequency post-production camera vibration/shake layered on top  
• Speed ramp — footage plays fast during the zoom  
• Three effects stacked simultaneously — the most intense moment in the edit

SHOT 4 (00:03-00:04) — Low-Angle Running  
• EFFECT: Speed ramp (acceleration)  
• Smooth acceleration from slow-motion to normal speed  
• In-camera high-frame-rate capture processed in post  
• The ramp feels organic, not jarring — controlled power building

SHOT 5 (00:04-00:06) — Profile Tracking  
• EFFECT: Speed ramp + whip pan exit transition  
• Normal-speed tracking that accelerates  
• Exits with a whip pan (right-to-left), creating motion blur smear as a transition device  
• The whip pan connects this shot to the next without a traditional cut

SHOT 6 (00:06-00:07) — Starting Blocks / Low Detail  
• EFFECT: Slow-motion  
• In-camera high-frame-rate capture (likely 120fps+ rendered at 24fps)  
• Approximately 20-25% speed — very slow  
• Emphasizes muscle tension and micro-movements  
• No additional digital effects — the slow-motion IS the effect

SHOT 7 (00:07-00:08) — Multi-Exposure Clone Sequence  
• EFFECT: Composited time-slice / stroboscopic clone  
• 8+ instances of the runner at different positions along the track  
• Built from a static background plate with rotoscoped runner composited at multiple time positions  
• Ghosting/opacity: instances transition from ~30-50% opacity (early ghosts) to fully opaque (final position)  
• The effect builds across the shot — early frames show faint ghosts, later frames show all 8+ instances at full opacity  
• This is the video's SIGNATURE VISUAL EFFECT

SHOT 8 (00:08-00:09) — Standing Pose  
• EFFECT: Digital zoom "pump" (rapid scale in/out) + camera shake/jitter  
• Quick scale pulse — the frame punches in then settles  
• Post-production camera jitter adds organic energy to a static composition  
• Creates impact on what would otherwise be a still moment

SHOT 9 (00:09-00:10) — Shoe ECU  
• EFFECT: Focus pull (rack focus)  
• In-camera depth-of-field shift  
• No digital manipulation — pure optical effect  
• Clean, controlled, technical

SHOT 10 (00:10-00:11) — Foot Impact  
• EFFECT: Speed ramp (slow-motion on heel strike)  
• High-intensity slow-motion on the moment of contact  
• Approximately 15-20% speed at the slowest point  
• May include slight speed ramp back to normal at the exit

SHOT 11 (00:11-00:12) — Walking / Profile  
• EFFECT: Post-production frame rotation  
• The entire image rotates clockwise by approximately 15-20°  
• Creates a Dutch angle / tilted horizon effect  
• The rotation appears to happen DURING the shot (not static tilt)  
• Adds a subtle disorientation/dynamism to a calm walking shot

SHOT 12 (00:12-00:14) — Low-Angle Sky / Stretching  
• EFFECT: Digital zoom (scale-out / pull-back)  
• The frame gradually widens or pulls back from the subject  
• Direction: upward toward sky, creating an aspirational "opening up" feeling  
• Slow, controlled — the opposite energy of the zoom-in from Shot 3

SHOT 13-14 (00:14-00:20) — Brand Card / Logo / Closing  
• EFFECT: Fade transition to brand card  
• Transitions to blue sky background with animated HOKA logo  
• Final cut to product macro (shoe being laced)  
• The logo animation is clean, minimal — the effects energy has resolved completely

## MASTER EFFECTS INVENTORY

1. SPEED RAMPING (used 5x)
  — Shots 1, 3, 4, 5, 10  
   — Both acceleration and deceleration  
   — The primary kinetic tool of the edit
2. SLOW-MOTION (used 2x)
  — Shots 6, 10  
   — Deep slow-mo (15-25% speed)  
   — Used for emphasis on physical detail
3. CAMERA SHAKE/VIBRATION (used 2x)
  — Shots 3, 8  
   — High-frequency post-production jitter  
   — Adds energy and impact to key moments
4. DIGITAL ZOOM PUNCH (used 3x)
  — Shots 3 (scale-in), 8 (pump), 12 (scale-out)  
   — Rapid scale changes create visceral impact  
   — Shot 3 is aggressive zoom-in; Shot 12 is gentle pull-out
5. FRAME ROTATION (used 1x)
  — Shot 11  
   — ~15-20° clockwise roll  
   — Adds dynamism to walking shot
6. MIRROR/SYMMETRY (used 1x)
  — Shot 2  
   — Vertical axis mirror of stadium shot  
   — Creates surreal geometric moment
7. WHITE BLOOM FLASH (used 1x)
  — Shot 3 entry  
   — Overexposed flash with faint imagery visible through  
   — Functions as high-energy transition
8. WHIP PAN (used 1x)
  — Shot 5 exit  
   — Right-to-left motion blur smear  
   — Connects shots without traditional cut
9. MULTI-EXPOSURE CLONE (used 1x)
  — Shot 7  
   — 8+ instances, building opacity  
   — The signature visual effect
10. ZOOM PUMP (used 1x)
  — Shot 8  
    — Quick scale in-out pulse  
    — Impact emphasis on static shot
11. FOCUS PULL (used 1x)
  — Shot 9  
    — In-camera rack focus  
    — Clean technical effect
12. MOTION BLUR AS TRANSITION (used 2x)
  — Shots 1 (entry), 5 (exit)  
    — Heavy directional blur connecting shots  
    — Creates sensation of velocity

## EFFECTS DENSITY MAP

00:00-00:03 = HIGH DENSITY (speed ramp, mirror, bloom, zoom, shake — 6 effects in 3s)  
00:03-00:06 = MEDIUM DENSITY (speed ramps, whip pan — 3 effects in 3s)  
00:06-00:09 = HIGH DENSITY (slow-mo, clone composite, zoom pump, shake — 4 effects in 3s)  
00:09-00:12 = MEDIUM DENSITY (focus pull, slow-mo, rotation — 3 effects in 3s)  
00:12-00:20 = LOW DENSITY (gentle zoom-out, fade to brand — 2 effects in 8s)

The effects follow the same THREE-ACT energy arc as the edit itself:  
Act 1 (0-6s): EXPLOSIVE — maximum effects density, speed, energy  
Act 2 (6-12s): CONTROLLED — signature effects, deliberate placement  
Act 3 (12-20s): RESOLVED — effects withdraw, stillness takes over

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