Hand-Drawn Cel Animation Effects On Skate Footage

the prompt

【⑥ エフェクト作画】

実写映像に、手描きアニメ風の花や光、衝撃波などのエフェクトを重ねるVFXです。

Gemini Omni Flashのプロンプト👇
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=== HAND-DRAWN CEL-ANIMATION COLOR EFFECTS ON REAL SKATE FOOTAGE
— V2V on <<<video_1>>> (~10s, match source) ===

⚠️ SOURCE LOCK: build on <<<video_1>>> — keep the REAL plate 1:1:
the skater's identity/face, his exact riding and timing, the
camera moves and framing of every shot, and the exact EDIT: the
source has EXACTLY 4 shots with cuts at ~1.6s, ~2.9s and ~8.6s —
keep those cut points and DO NOT ADD any new cut, transition,
dissolve, flash, or re-cut anywhere. The third shot (~2.9-8.6s,
containing the slow-motion ollie, the landing and the carves) is
ONE CONTINUOUS unbroken take — keep it that way, including its
speed changes. Do not alter the street, the sky, the light, or
his body. Only ADD the 2D effects layer.

🎨 THE EFFECTS — 2D HAND-DRAWN CEL ANIMATION LAYER:
All effects are flat, hand-drawn 2D animation in the style of
Japanese effects animation: bold graphic shapes, clean thick
outlines, flat vivid fills, stepped cel-style motion (animated
on twos), NO photorealistic particles, NO 3D renders, NO lens
flares. Color palette: fluorescent PINK, electric CYAN, sunny
YELLOW, plus white accents — popping hard against the real blue
sky and gray asphalt. The 2D shapes are perfectly TRACKED to the
real 3D positions: stuck to the asphalt where they land, locked
to the wheels and shoes as they move, holding position in space
as the camera moves. Effects never cover his face. Every burst
lives briefly: it blooms, morphs into small flowers or geometric
petals, and dissolves within about a second.

SHOT 1 (wide follow-cam, 0-1.6s): each PUSH — the instant his
shoe strikes the asphalt — fires a small cel splash from the
contact point: a jagged star-burst with a few round droplets,
pink then cyan for the second push. Thin colored ribbon trails
begin streaming from the wheels, hugging his path.

SHOT 2 (feet close-up, 1.6-2.9s): the hero contact: his push
foot hits the ground and a BIG cel burst explodes from under
the sole — jagged flash shape, flying droplets, tiny yellow
sparks — while the spinning wheels throw off small ticks of
color. The burst blooms into two or three small flowers on the
asphalt that dissolve as they slide out of frame.

SHOT 3 (one continuous take, 2.9-8.6s) — tie every effect to
his MOTION, not to fixed times:
- as he crouches and POPS the ollie: a coiled ring of color
  tightens under the board, then releases upward with him.
- during the SLOW-MOTION air: the effects go slow with the
  footage — pink, cyan and yellow trails peel off the board's
  tail and his fingertips, blooming into large graphic flowers
  and petal shapes that rotate lazily around his silhouette
  against the blue sky. Dreamy, weightless, wide open.
- at the LANDING, the instant the wheels slam down: time snaps
  back and ALL the floating shapes get sucked into the impact
  point and DETONATE as one big flat shockwave ring plus a
  jagged burst, petals scattering outward along the ground.
- during the two quick CARVES: each carve paints one wide
  ribbon arc on the asphalt — pink for the first, cyan for the
  second — that lingers a beat, sprouts tiny flowers along its
  edge, and dissolves.

SHOT 4 (riding toward camera, 8.6-10s): ribbon trails stream
from the wheels toward the lens; when he throws his arm out
wide, a spray of small petals and sparks fans from his
fingertips; as he blasts past the camera, the last ribbons whip
past the lens edges. End on the street with a few final petals
dissolving mid-air.

AUDIO: keep the real skate foley — wheels rumbling on asphalt,
the pop of the tail, the slam of the landing — and layer
playful, anime-style effect sounds on top: soft pops, sparkly
chimes and quick whooshes, each synced exactly to a visual
burst. Bright and fun. No music.