La qualite du prompt est le facteur le plus determinant dans le resultat d'une video IA. Le meme modele Seedance 2.0 produit des resultats radicalement differents selon la maniere dont vous redigez votre prompt. Ce guide vous enseigne un framework systematique, fournit plus de 50 modeles prets a l'emploi et couvre les techniques avancees pour generer de maniere coherente des videos IA de qualite professionnelle.
Pourquoi la qualite du prompt est importante
Un prompt bien structure indique au modele IA exactement ce qu'il doit generer, reduisant l'aleatoire et augmentant la probabilite d'obtenir un resultat exploitable des la premiere tentative. Les mauvais prompts gaspillent des generations et des credits, tandis que des prompts precis produisent des resultats immediatement utilisables.
La difference entre un prompt vague et un prompt specifique :
| Type de prompt | Exemple | Resultat typique |
|---|---|---|
| Vague | "A mountain" | Paysage generique, style imprevisible |
| Basique | "A mountain at sunset" | Mieux, mais manque encore de direction |
| Structure | "Aerial drone shot of snow-capped mountain range at golden hour, volumetric fog in valleys, warm orange light, cinematic color grading, slow forward dolly" | Resultat precis, professionnel, exploitable |
Le prompt structure produit systematiquement de meilleurs resultats car il specifie le sujet, le mouvement de camera, l'eclairage, l'atmosphere et le style. Le framework SCELA ci-dessous vous fournit un systeme reproductible pour rediger des prompts a ce niveau.
Le framework de prompts SCELA
SCELA est un framework en cinq composantes concu specifiquement pour les prompts video IA. Chaque element traite un aspect different du resultat genere, et l'inclusion des cinq produit les resultats les plus previsibles.
Sujet (Subject)
Le point focal principal de votre video. Soyez precis sur ce que le spectateur voit, y compris les details comme le materiau, la couleur et l'echelle.
Faible : "A car" Fort : "A matte black 1967 Ford Mustang Fastback"
Conseils pour rediger des sujets forts :
- Incluez des descriptions de materiau et de texture
- Specifiez la couleur avec precision (pas "blue" mais "deep navy blue")
- Mentionnez l'echelle ou les proportions quand c'est pertinent
- Decrivez l'etat du sujet (en mouvement, immobile, en transformation)
Contexte (Context)
L'environnement, le cadre et l'arriere-plan entourant le sujet. Le contexte ancre la scene et empeche le modele de faire des choix d'arriere-plan aleatoires.
Faible : "On a road" Fort : "On a winding coastal highway above turquoise ocean cliffs"
Conseils pour un contexte efficace :
- Decrivez les plans avant, intermediaire et arriere
- Incluez la meteo et les conditions atmospheriques
- Mentionnez le moment de la journee et la saison
- Specifiez interieur/exterieur et le type d'espace
Effet (Effect)
Le style visuel, l'esthetique et le rendu post-production de la video. Cela controle si le resultat a un aspect cinematographique, documentaire, stylise ou photorealiste.
Faible : "Cinematic" Fort : "Anamorphic lens flares, teal-and-orange color grading, shallow depth of field with creamy bokeh"
Mots-cles d'effets courants :
- Etalonnage couleur : teal-and-orange, desature, monochrome, contraste eleve
- Pellicules : Kodak Portra, Fuji Velvia, CineStill 800T
- Styles : photorealiste, hyper-detaille, onirique, brut, minimaliste
- Post-traitement : grain de film, flares, vignettage, lueur douce
Lumiere (Lighting)
Comment la scene est eclairee. L'eclairage a un impact disproportionne sur l'ambiance, la dimension et la qualite visuelle.
Faible : "Good lighting" Fort : "Rim-lit from behind with warm golden backlight, soft fill light from the left, dramatic shadows"
Vocabulaire d'eclairage :
- Direction : contre-jour, lateral, plongeant, sous-eclairage, contour
- Qualite : doux, dur, diffus, speculaire, ambiant
- Temperature de couleur : dore chaud, bleu froid, lumiere naturelle neutre
- Sources : lumiere naturelle, neon, chandelle, softbox studio
Action
Le mouvement dans la scene et le mouvement de camera. C'est ce qui distingue la video d'une image statique et c'est essentiel pour un resultat dynamique.
Faible : "Moving" Fort : "Slow forward dolly with the subject walking toward camera, hair moving in gentle breeze"
Options de mouvement de camera :
- Travelling : avant, arriere, lateral
- Panoramique : gauche, droite, lent, rapide
- Inclinaison : haut, bas
- Grue : montante, descendante
- Orbite : rotation 360 degres autour du sujet
- Zoom : lent push-in, pull-out
- A main levee : leger mouvement naturel
- Statique : plan fixe sur trepied
Modeles de prompts par categorie
Chaque modele ci-dessous suit la structure SCELA. Remplacez les elements entre crochets par vos details specifiques.
Paysages cinematographiques
Modele 1 : Panorama montagneux
Slow aerial dolly forward over snow-capped mountain range at golden hour,
volumetric fog filling valleys below, warm orange rim light on peaks,
cinematic anamorphic color grading, drone perspectiveModele 2 : Cote oceanique
Wide establishing shot of dramatic sea cliffs with crashing waves,
turquoise water spray catching afternoon sunlight,
film grain texture with teal-and-orange grading,
slow lateral tracking rightModele 3 : Etendue desertique
Sweeping crane shot ascending over red sandstone desert formations at sunrise,
heat haze distortion on distant horizon, soft pink and gold light,
hyper-detailed photorealistic rendering, gentle camera riseModele 4 : Interieur forestier
Slow forward dolly through ancient redwood forest,
god rays piercing through canopy creating light shafts in morning mist,
rich green and amber tones with soft diffused lighting,
cinematic depth of fieldModele 5 : Horizon urbain
Static wide shot of city skyline transitioning from sunset to blue hour,
glass buildings reflecting orange sky, lights turning on across cityscape,
time-lapse aesthetic with smooth temporal flow,
locked-off tripod framingModele 6 : Cascade
Medium shot of powerful waterfall cascading into emerald pool,
mist catching rainbow prisms in afternoon light,
silky smooth water motion with high shutter speed aesthetic,
slow zoom in toward water impact pointPersonnage et portrait
Modele 7 : Portrait en gros plan
Extreme close-up of a woman's face with green eyes looking directly at camera,
soft studio lighting with butterfly pattern, creamy skin tones,
shallow depth of field with background blur,
subtle slow push-in toward eyesModele 8 : Silhouette en marche
Medium tracking shot following a person in a long coat walking through
rain-soaked city streets at night, neon signs reflecting on wet pavement,
atmospheric noir lighting with cyan and magenta accents,
smooth lateral dolly matching walking paceModele 9 : Danseur
Full body shot of contemporary dancer mid-leap in empty warehouse space,
dramatic side lighting creating long shadows on concrete floor,
high contrast black and white with grain texture,
slow motion capture at 120fps aestheticModele 10 : Musicien
Medium shot of guitarist playing on rooftop at golden hour,
wind moving hair and shirt, city skyline soft in background,
warm amber color grading with lens flare from setting sun,
slow orbit around subject from left to rightModele 11 : Athlete
Dynamic low-angle shot of runner sprinting toward camera on track,
muscles defined by hard directional sunlight from left,
high contrast with desaturated background,
slow motion with particle debris from track surfaceModele 12 : Portrait d'aine
Close-up of weathered hands holding a ceramic coffee cup,
morning window light casting soft shadows across textured skin,
warm film stock color grading with shallow depth of field,
static shot with subtle steam rising from cupProduit et commercial
Modele 13 : Revelation produit tech
Slow orbit around sleek smartphone floating on matte black surface,
studio rim lighting highlighting metallic edges,
ultra-clean minimalist aesthetic with sharp reflections,
360-degree smooth rotation with subtle shadow playModele 14 : Photographie culinaire
Top-down shot of artisanal coffee being poured into ceramic cup,
milk creating swirl patterns, steam rising softly,
warm natural lighting from window right side,
slow downward zoom into cup surface detailModele 15 : Cosmetiques
Macro close-up of lipstick bullet emerging from gold case,
studio beauty lighting with soft highlight and gradient background,
hyper-detailed texture showing product surface,
smooth slow rotation revealing full product shapeModele 16 : Presentation sneaker
Dynamic low-angle tracking shot of sneaker stepping onto wet concrete,
water splash particles frozen in dramatic side light,
high contrast urban aesthetic with desaturated background,
slow motion impact with detailed texture renderingModele 17 : Service de boisson
Close-up of amber liquid pouring into crystal glass with ice,
backlit creating luminous glow through liquid,
high-speed capture aesthetic showing splash detail,
slight camera rise following pour trajectoryModele 18 : Detail de montre
Extreme close-up of luxury watch face with second hand ticking,
studio butterfly lighting reflecting off sapphire crystal,
ultra-sharp macro detail with smooth bokeh background,
very slow push-in toward watch dial centerAbstrait et artistique
Modele 19 : Encre dans l'eau
Macro shot of deep blue ink drops expanding in clear water,
backlit creating luminous translucent swirls,
high contrast with dark background and vivid color,
slow motion fluid dynamics at extreme magnificationModele 20 : Peinture de lumiere
Long exposure aesthetic of light trails creating geometric patterns in darkness,
multicolored neon traces against pure black background,
ethereal glow with soft edge diffusion,
smooth flowing motion building pattern complexityModele 21 : Croissance fractale
Abstract organic fractal pattern growing outward from center,
bioluminescent blue and green glow against dark void,
psychedelic detail with recursive self-similar structures,
slow continuous expansion with camera pulling backModele 22 : Metal liquide
Close-up of mercury-like liquid metal forming and reforming abstract shapes,
studio lighting creating chrome reflections on surface,
hyper-realistic material rendering with environment mapping,
organic morphing motion with smooth transitionsModele 23 : Champ de particules
Thousands of golden light particles floating in dark space,
slowly converging into recognizable constellation pattern,
warm amber glow with soft bokeh circles,
camera drifting slowly through particle fieldModele 24 : Morphing geometrique
Geometric crystal structure slowly transforming between platonic solids,
prismatic light refracting through transparent facets,
clean white studio background with rainbow caustics,
smooth continuous morphing rotationAction et sport
Modele 25 : Surf
Tracking shot following surfer inside barrel wave,
turquoise water wall curving overhead with sunlight piercing through,
GoPro-style wide angle with motion blur on edges,
dynamic forward motion matching wave speedModele 26 : Skateboard
Low-angle follow cam of skateboarder grinding rail in urban park,
golden hour backlight creating lens flare,
gritty film stock aesthetic with warm color grading,
smooth tracking matching skating speedModele 27 : Basketball
Slow motion close-up of basketball leaving player's fingertips for shot,
dramatic overhead arena lighting with visible light beams,
high contrast with shallow depth of field,
camera following ball trajectory upwardModele 28 : Cyclisme
Aerial drone tracking shot following cyclist on mountain switchback,
dust trail behind wheels catching afternoon sunlight,
wide cinematic landscape framing with subject small in frame,
smooth drone pursuit from above and behindModele 29 : Natation
Underwater medium shot of swimmer mid-stroke,
bubbles and light caustics dancing on body surface,
clear blue water with rays of sunlight from above,
smooth lateral tracking matching swim paceModele 30 : Arts martiaux
Medium shot of martial artist performing spinning kick,
traditional dojo with wooden floor and paper screens,
dramatic side lighting creating motion blur on limbs,
slow motion capture emphasizing technique precisionNature et faune
Modele 31 : Oiseau en vol
Tracking shot of eagle soaring over mountain valley,
wings fully spread catching thermal updraft,
golden hour warm lighting from behind creating silhouette edge,
smooth follow cam matching flight pathModele 32 : Recif sous-marin
Slow forward glide through coral reef teeming with tropical fish,
shafts of sunlight penetrating clear ocean water,
vivid natural colors with soft caustic light patterns,
gentle diving perspective moving through reef structureModele 33 : Floraison
Extreme close-up time-lapse of rose bud opening to full bloom,
soft natural daylight with gentle color shift from dawn to midday,
hyper-detailed petal texture with visible dew drops,
static macro framing with subtle focus pullModele 34 : Orage approchant
Wide static shot of dark thunderstorm clouds rolling over green plains,
lightning flashes illuminating cloud structure,
dramatic contrast between dark sky and bright landscape,
time-lapse cloud movement with natural light changesModele 35 : Faune arctique
Medium shot of polar bear walking across blue-white ice sheet,
soft overcast arctic lighting with blue shadow tones,
breath visible in cold air, pristine untouched snow,
slow lateral tracking parallel to bear's pathModele 36 : Canopee de jungle
Ascending crane shot from jungle floor up through canopy layers,
dense tropical foliage with birds and insects in motion,
dappled green light filtering through leaves,
smooth vertical rise breaking through to sky aboveReseaux sociaux et format court
Modele 37 : Unboxing produit
Overhead shot of hands opening minimalist packaging to reveal product,
clean white surface with soft diffused overhead lighting,
ASMR-style intimate framing with detail focus,
medium speed revealing contents with slight camera push-inModele 38 : Etape de recette
Close-up of chef's hands slicing vegetables on wooden cutting board,
warm kitchen lighting with shallow depth of field,
appetizing food photography color grading,
steady overhead angle showing technique detailModele 39 : Revelation tenue
Full body shot of model doing slow spin in front of neutral background,
ring light creating even illumination with catchlight in eyes,
clean fashion editorial color grading,
smooth 360-degree turn showcasing full outfitModele 40 : Avant/Apres
Split-screen transition from dull version to vibrant version of landscape,
dramatic color and detail enhancement sweeping left to right,
clean graphic transition with visible quality difference,
static framing with wipe transition effectModele 41 : Animation de citation
Elegant typography appearing letter by letter on dark textured background,
soft warm backlighting creating subtle glow behind text,
minimalist design aesthetic with serif font,
gentle camera drift with text animationModele 42 : Plan de montage voyage
Wide shot of traveler standing at iconic location viewpoint,
dramatic landscape stretching to horizon,
warm travel photography color grading with slight grain,
slow zoom out revealing full scene scaleTechniques de prompts Image-vers-Video
Les prompts Image-vers-Video (I2V) fonctionnent differemment des prompts Texte-vers-Video. Puisque l'image fournit deja le contexte visuel, votre prompt doit se concentrer sur le mouvement, la transformation et le mouvement de camera plutot que sur la description de la scene.
Differences cles avec les prompts T2V :
| Aspect | Prompt Texte-vers-Video | Prompt Image-vers-Video |
|---|---|---|
| Description de scene | Necessaire (detaillee) | Non necessaire (l'image fournit) |
| Description du mouvement | Important | Essentiel |
| Mouvement de camera | Important | Essentiel |
| Style/esthetique | Necessaire | Optionnel (l'image definit le style) |
| Eclairage | Necessaire | Optionnel (l'image definit l'eclairage) |
Modele I2V 43 : Mouvement subtil
The subject gently sways as a soft breeze moves through the scene,
hair and fabric responding to wind, subtle atmospheric particles,
camera remains static, natural ambient motion onlyModele I2V 44 : Mouvement de camera uniquement
Slow cinematic dolly forward approaching the subject,
scene elements remain static, depth reveals through parallax,
smooth steady camera advance with increasing detailModele I2V 45 : Animation de personnage
The person slowly turns head to look at camera and smiles naturally,
eyes tracking toward viewer with realistic blink,
subtle breathing motion visible, slight body weight shiftModele I2V 46 : Activation de l'environnement
Water begins flowing, clouds start drifting across sky,
leaves rustle in growing wind, light shifts as sun moves,
natural environmental animation building from stillnessModele I2V 47 : Rotation de produit
The product slowly rotates 90 degrees to the right,
consistent studio lighting maintained throughout rotation,
smooth controlled motion with no background changeTechniques de prompting avancees
Prompts negatifs
Seedance 2.0 prend en charge les prompts negatifs pour exclure les elements indesirables du resultat genere. Utilisez les prompts negatifs pour eviter les artefacts courants ou des elements visuels specifiques.
Elements de prompt negatif courants :
- "No blur, no distortion, no artifacts"
- "No watermark, no text overlay"
- "No extra limbs, no deformed faces"
- "No camera shake, no jitter"
Chainage de prompts pour la coherence
Lorsque vous generez plusieurs clips pour le meme projet, maintenez la coherence visuelle en gardant les descripteurs centraux identiques dans tous les prompts et en ne modifiant que l'action ou l'angle de camera.
Descripteur de base (a reutiliser entre les clips) :
Matte black 1967 Ford Mustang Fastback on coastal highway,
golden hour warm lighting, teal-and-orange color grading,
cinematic anamorphic lensClip 1 : "Wide establishing shot, [base], slow aerial approach" Clip 2 : "Close-up of chrome grill, [base], slow lateral tracking" Clip 3 : "Rear tracking shot following car, [base], dynamic pursuit angle"
Melange de styles
Combinez plusieurs references esthetiques dans un seul prompt pour des resultats visuels uniques :
Shot on 35mm Kodak Vision3 500T film stock combined with modern digital
color grading, vintage grain texture with contemporary sharpness,
warm analog color palette with digital dynamic rangeOptimisation de la resolution et de la duree
- Pour les clips de 4 secondes : placez le visuel le plus important dans les 2 premieres secondes
- Pour les clips de 8 secondes : structurez en mise en place (0-3s), moment fort (3-6s), resolution (6-8s)
- Pour la sortie 1080p : incluez des descriptions de details fins pour exploiter la pleine resolution
10 erreurs courantes de prompt et leurs corrections
| Erreur | Exemple | Correction |
|---|---|---|
| Trop vague | "A nice video" | Ajouter les composantes SCELA |
| Contradictoire | "Dark scene, bright sunlight" | Choisir une seule direction d'eclairage |
| Trop de sujets | "Cat, dog, bird, fish, horse" | Se concentrer sur 1-2 sujets maximum |
| Pas de direction camera | "A mountain sunset" | Ajouter "slow aerial dolly forward" |
| Eclairage manquant | "Person in room" | Ajouter "soft window light from left" |
| Surcharge | Prompt de 200+ mots | Garder entre 30-80 mots |
| Mauvais mode | Description de scene pour I2V | Utiliser un prompt centre sur le mouvement pour I2V |
| Pas de direction de style | "A city" | Ajouter "cyberpunk neon aesthetic" |
| Physique impossible | "Person flying without wings" | Garder la physique realiste sauf si stylise |
| Pas de ton emotionnel | Description technique uniquement | Ajouter "serene", "dramatic", "energetic" |
FAQ
Qu'est-ce qui fait un bon prompt Seedance ?
Un bon prompt Seedance inclut cinq elements : Sujet (point focal principal), Contexte (environnement), Effet (style visuel), Lumiere (eclairage) et Action (mouvement). C'est ce qu'on appelle le framework SCELA.
Quelle longueur doit avoir un prompt Seedance ?
Visez 30 a 80 mots. Les prompts plus courts manquent de details, tandis que les prompts tres longs peuvent confondre le modele. Privilegiez la precision plutot que la longueur.
Seedance supporte-t-il les prompts negatifs ?
Seedance 2.0 prend en charge les prompts negatifs pour exclure les elements indesirables. Utilisez-les pour eviter les artefacts, des styles specifiques ou des elements visuels non souhaites.
Qu'est-ce que le framework de prompts SCELA ?
SCELA signifie Subject (Sujet), Context (Contexte), Effect (Effet), Lighting (Lumiere) et Action. C'est une approche structuree pour rediger des prompts qui produisent systematiquement des resultats video IA de haute qualite.
Peut-on utiliser les memes prompts pour le texte-vers-video et l'image-vers-video ?
Pas exactement. Les prompts Image-vers-Video doivent se concentrer sur le mouvement et la transformation plutot que sur la description de la scene, puisque l'image fournit deja le contexte visuel.
Comment eviter un resultat flou ou deforme avec Seedance ?
Specifiez le type de camera, les conditions d'eclairage et evitez les instructions contradictoires. L'utilisation systematique du framework SCELA reduit les artefacts et ameliore la nettete.
Ou trouver des modeles de prompts Seedance ?
Ce guide comprend plus de 50 modeles organises par categorie : paysages cinematographiques, portraits de personnages, plans produit, art abstrait, scenes d'action, nature et contenu pour les reseaux sociaux.
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