CasesUm retrato, sete sets
08
Um retrato, sete sets
Ensaio de produto e moda · autoral · 2026

Case autoral, não comissionado · exercício de experimentação

Um retrato, sete sets

Um ensaio de moda em sete cenários, com poses e figurinos diferentes, a partir de uma única foto de estúdio. A regra era uma só: o cenário pode mudar à vontade, o rosto não.

Entrega
Ensaio de 7 imagens 4:5
Imagem
Google Nano Banana 2 no Magnific, modo Thinking Fast, 1856×2304 px
Origem
1 retrato de banco de imagens
Ano
2026
Ensaio Modelo de cabelo cacheado numa bicicleta, vista de baixo contra o céu azul, com sombra de folhas na perna
01 · Bicicleta4:5
01
Briefing

Esse foi um dos meus primeiros testes de consistência de personagem. Para dar a ele um problema de verdade, escrevi um briefing hipotético a partir da pergunta que toda marca de moda faz antes de confiar numa campanha feita com IA: a modelo continua sendo a mesma pessoa de uma foto para outra?

Cliente: marca de moda que precisa de um lookbook de campanha.
Ponto de partida: um único retrato de estúdio da modelo.
Entrega: sete imagens 4:5 em cenários, poses e figurinos diferentes, entre rua, estúdio, esporte e piscina.
Restrição: sem estúdio, sem locação, sem troca de figurino no set.
Critério: o rosto e a pele precisam ser reconhecíveis em todas as peças, como num ensaio de verdade.Briefing hipotético · escrito por mim
Sobre as imagens
  1. Todas as imagens deste case, menos o retrato de origem, foram geradas por IA.
  2. O retrato de origem é de Artem Podrez, publicado no Pexels: https://www.pexels.com/photo/7048341/
  3. A modelo não participou das cenas geradas. É um exercício de experimentação, sem uso comercial.
02
Decisão

Travar o rosto e soltar todo o resto. Cada cena ganhou uma ficha de set própria, com câmera, lente, luz, filme e figurino diferentes, como se fossem sete diárias com sete fotógrafos. Quanto mais a gramática da foto muda, mais fica claro que quem segura o ensaio é a modelo.

O que se repete em todas as fichas é a descrição da pele: poros visíveis, oleosidade natural, sobrancelha sem pó, nada de suavização. Pele de gente é o que separa um ensaio de um catálogo de avatar. Se a pele parece real, o rosto vem junto.

A origem e a primeira cena de estúdio

Retrato de origem: mulher de cabelo cacheado contra fundo azul, com blusa bege
Origemfoto de Artem Podrez · Pexels
A mesma modelo gerada em estúdio, de blazer preto contra fundo cinza, com luz lateral
02 · Estúdiogerada · K35 85mm
O que muda e o que fica
  1. Muda: câmera, lente, altura e ângulo, de chão a zenital.
  2. Muda: luz, de sol duro a céu nublado, softbox e cáusticas da piscina.
  3. Muda: emulação de filme, entre Vision3 250D, Eterna 500T e Kodak 2383.
  4. Muda: figurino, pose e cenário.
  5. Fica: rosto, cabelo, tom de pele e a descrição física da pele.
03
Ficha de set

Cada prompt foi escrito como ficha de set, dividida nos mesmos blocos: câmera, lente, luz, sujeito, planos da imagem, comportamento do figurino, física da pele, pós-produção e geometria da composição. A luz é descrita em temperatura de cor e em IRE, a medida de exposição do vídeo, para que a ferramenta trate a cena como fotometria e não como adjetivo.

01 · Bicicleta · Alexa 35, K35 24mm, Vision3 250D

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CAMERA: ARRI Alexa 35 at ISO 800, set at ground level beside the front wheel, tilted up 40 degrees, lens close to the handlebar.
LENS: Canon K35 24mm T1.5, stopped to T5.6, deep focus from the grip to the shoulders, edge distortion retained.
LIGHT: Direct sun at 60 degrees, 5.400K, from camera-right and behind. Hard-edged foliage shadows scatter across the thigh and sleeve. Sky at 70 IRE deep blue, sunlit fabric at 88 IRE, shadow side of the leg at 30 IRE with no fill. Chrome on the handlebar throwing a hard specular.
SUBJECT: @image_1 seated on a bicycle, both hands on the grips, torso upright, head turned away to camera-right, chin above the lens axis, one leg forward on the pedal.
FOREGROUND: Handlebar and front tyre crossing the bottom of the frame, chrome sharp, rubber matte.
MIDGROUND: Body sharp from grip to shoulder, fabric folds catching the raking sun.
BACKGROUND: Cloudless sky filling the upper two-thirds, deepening toward the top corner.
WARDROBE TONAL BEHAVIOR: Heavy off-white cotton fleece, surface fuzz catching the sun as a fine halo along the sleeve, folds reading in warm midtone, plain cotton socks blowing to near white.
MAKEUP SURFACE PHYSICS: Real skin, sweat sheen on the forearm and shin, pores visible on the cheek, hair pulled flat and damp at the temple.
POST BEHAVIOR: Kodak Vision3 250D 5207, visible organic grain, high contrast from the direct sun, halation on the chrome specular, saturation held in the sky, warm skin midtones.
COMPOSITIONAL GEOMETRY: Subject on a diagonal from the lower-left grip to the upper-right shoulder, bicycle frame as counter-diagonal, sky as dominant negative field.
MOOD & ART DIRECTION: Composition and art direction inspired in the work of award-winning directors.

02 · Estúdio · Alexa 35, K35 85mm, Kodak 2383

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CAMERA: ARRI Alexa 35 at ISO 800, locked at the subject's eye line but pushed off axis to camera-left, one shoulder clipped by the frame edge.
LENS: Canon K35 85mm T1.8, wide open, focus on the near iris, far cheek already dissolving.
LIGHT: Single large softbox at 5.400K, 40 degrees camera-right and one foot above the eye line, feathered so the far side of the face falls two and a half stops. Black flag camera-left kills bounce and keeps the jaw edge dark. Key side at 62 IRE, shadow side at 22 IRE, nose shadow short and soft-edged.
SUBJECT: Shoulders squared to the lens, chin lowered, gaze direct and unblinking, weight carried forward. Intercepted framing.
FOREGROUND: Out-of-focus edge of a black cutter intruding from frame-left, dissolving the first third.
MIDGROUND: Face sharp on the near eye, falling soft across the cheekbone.
BACKGROUND: Seamless mid-grey paper two stops under key, slow tonal falloff into the corners, no gradient seam.
WARDROBE TONAL BEHAVIOR: Black wool blazer, dry matte weave holding no specular, readable only where the key wraps the shoulder seam.
MAKEUP SURFACE PHYSICS: Bare skin, visible pores across the cheek, faint oil on the nose bridge and brow, no powder, brows unset.
POST BEHAVIOR: Kodak 2383 print emulation, visible organic grain, rich midtone separation, deep blacks without crush, restrained saturation, warm shadow toe.
COMPOSITIONAL GEOMETRY: Head pushed to the right third, grey negative mass filling frame-left, shoulder line broken by the frame cut.
MOOD & ART DIRECTION: Composition and art direction inspired in the work of award-winning directors.

03 · Banco de rua · Alexa 35, K35 55mm, Vision3 250D

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CAMERA: ARRI Alexa 35 at ISO 800, hand-held at hip level across the street, framed so a dark vertical mass blocks the left third.
LENS: Canon K35 55mm T1.5, stopped to T2.8, focus on the hands, the near obstruction fully dissolved.
LIGHT: Overcast sky at 6.200K as a single wrapping source from above, no direct sun. Stone wall returns a soft one-stop bounce into the shadow side of the face. Skin midtone at 55 IRE, pale bench at 78 IRE, black jersey at 15 IRE with weave still readable. Shadows soft-edged and short beneath the bench.
SUBJECT: @image_1 seated on the bench, knees crossed and angled away from the lens, torso turned in, head down over a phone, one elbow resting along the backrest, unaware of the camera.
FOREGROUND: A black iron post out of focus, filling the left third from top to bottom, occluding the frame.
MIDGROUND: Subject sharp from hand to boot, bench slats receding to the right.
BACKGROUND: Large-format grey stone wall, mortar seams readable, no depth beyond it.
WARDROBE TONAL BEHAVIOR: Matte black jersey absorbing light with separation only at the shoulder seam, deep brown suede boots with a nap that scatters rather than reflects, structured leather bag reading as a hard black rectangle against the pale bench.
MAKEUP SURFACE PHYSICS: Real skin, pores visible on the cheek and nose, natural oil at the brow, loose hair edges, no smoothing.
POST BEHAVIOR: Kodak Vision3 250D 5207, visible organic grain, restrained contrast, palette held to stone grey, black and brown, midtone priority, cool shadow toe.
COMPOSITIONAL GEOMETRY: Subject left of centre, bench cutting a horizontal across the lower half, foreground post as a hard vertical occluding the left third, wall as empty mass above.
MOOD & ART DIRECTION: Composition and art direction inspired in the work of award-winning directors.

04 · Escada de azulejo · Alexa 35, K35 24mm, Eterna 500T

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CAMERA: ARRI Alexa 35 at ISO 800, hand-held directly above the subject at 70 degrees looking down, lens two feet from the face.
LENS: Canon K35 24mm T1.5, stopped to T4, focus on the bridge of the sunglasses, wide-angle distortion enlarging the head against the receding body.
LIGHT: Open shade at 6.400K falling from the sky above, glazed tile returning a faint green cast into the shadow side. Flat and even, key to fill under two to one. Skin at 60 IRE, dark tile at 25 IRE, concrete floor at 55 IRE. One small specular in the lens of the sunglasses.
SUBJECT: @image_1 crouched low on a step, hands resting on the knees, chin lifted to the lens, mouth closed with a slight press, eyes readable through dark lenses, hair pulled back tight and flat.
FOREGROUND: Concrete floor at the bottom of the frame, a pair of shoes intruding from the lower edge, out of focus.
MIDGROUND: Head and hands sharp, forearms foreshortened by the angle.
BACKGROUND: Green glazed tile stair and wall, grout lines readable, edges worn.
WARDROBE TONAL BEHAVIOR: Black cotton with a soft brushed shoulder absorbing light with almost no specular, small metal jewellery catching hard points against the matte fabric.
MAKEUP SURFACE PHYSICS: Real skin, pores visible on the nose and cheek, natural sheen across the forehead, brow hairs separated, lip surface slightly moist, no powder.
POST BEHAVIOR: Fuji Eterna 500T 8573, visible coarse grain, restrained contrast, green lean in the midtones from the tile, cool shadow toe, soft highlight roll-off.
COMPOSITIONAL GEOMETRY: Head anchored at the centre and enlarged by the lens, body radiating outward and shrinking, foreground shoes breaking the bottom edge, perspective distortion deliberate.
MOOD & ART DIRECTION: Composition and art direction inspired in the work of award-winning directors.

05 · Gola de tricô · Alexa 35, K35 55mm, Vision3 250D

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CAMERA: ARRI Alexa 35 at ISO 800, hand-held slightly above the eye line, tilted down, the subject's head rolled 20 degrees within the frame.
LENS: Canon K35 55mm T1.5, wide open, focus on the near eye, knit collar softening at the edge.
LIGHT: Open sky at 6.500K as an enormous soft source overhead, sun behind thin cloud at 5.200K skimming from camera-right. Sky fill lifts the shadow side to one and a half stops under key. Skin midtone at 62 IRE, sky at 80 IRE, the only hard edge a short shadow beneath the nose.
SUBJECT: @image_1 pulling a ribbed knit collar up over the mouth and chin with both hands, only the eyes, nose bridge and one cheek visible, head tilted, eyes narrowed in a held half-smile aimed at the lens.
FOREGROUND: Knit cuff and collar filling the lower half, ribs sharp enough to read individual wales.
MIDGROUND: Eyes and brow on the focus plane, loose hair strands lifting off the head.
BACKGROUND: Clear pale sky, no horizon, gradient warm at the bottom and cool at the top.
WARDROBE TONAL BEHAVIOR: Saturated green wool, fibre nap catching the top light so the ribs alternate lit and shadowed, colour sitting complementary against the sky.
MAKEUP SURFACE PHYSICS: Real skin, pores and freckles visible across the nose, faint sheen on the eyelid, individual lashes separated, brows unset, no powder.
POST BEHAVIOR: Kodak Vision3 250D 5207, heavy visible grain across the flat sky, restrained contrast, warm highlight roll-off, slight halation on the hair rim.
COMPOSITIONAL GEOMETRY: Face pushed to the upper-right third, knit mass rising diagonally from the lower-left, sky as empty field, head cropped at the crown.
MOOD & ART DIRECTION: Composition and art direction inspired in the work of award-winning directors.

06 · Macro · IMAX MK IV, Makro-Planar 65mm, Kodak 2383

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CAMERA: IMAX MK IV 65mm at ISO 250, locked on a slider, lens axis level with the mouth and rolled 8 degrees, framing from the brow to just under the chin.
LENS: Zeiss Makro-Planar 65mm T2.2, stopped to T3.2 at twenty inches, focus plane holding the near eye and the mouth together on one sharp field, ear and hairline falling off.
LIGHT: Single source through heavy diffusion at 5.200K, 30 degrees camera-left and slightly above, close enough to wrap around the nose. White bounce card under the chin at one and a half stops below key. Catchlight reads as a single soft rectangle in the upper iris. Lip specular at 86 IRE, skin midtone at 58 IRE, shadow beside the nose at 28 IRE with a soft transition.
SUBJECT: Face turned five degrees off the lens, one full eye open and holding the camera with the entire lid, lash line and lower waterline visible, the second eye cut by the frame edge, mouth relaxed and slightly parted.
FOREGROUND: A single out-of-focus strand of hair crossing the lower-right corner.
MIDGROUND: Eye, cheek and mouth on one sharp plane, jaw softening.
BACKGROUND: Skin and shadow continuing out of focus, no set, no separation.
WARDROBE TONAL BEHAVIOR: No garment in frame.
MAKEUP SURFACE PHYSICS: Real skin at macro scale, open pores across the cheek and nose, vellus hair catching the wrap along the jaw, individual lower lashes separated and wet at the root, fine vertical lines across the lip, natural moisture on the inner lip, faint dryness at the corner, no airbrush.
POST BEHAVIOR: Kodak 2383 print emulation, visible organic grain, rich midtone separation, restrained saturation, warm shadow falloff, soft highlight roll-off on the lip and the catchlight.
COMPOSITIONAL GEOMETRY: Eye anchored on the upper-left third, mouth on the lower-right, a diagonal running between the two, frame cutting the face on three sides.
MOOD & ART DIRECTION: Composition and art direction inspired in the work of award-winning directors.

07 · Piscina · IMAX MK IV, Otus 85mm, Vision3 250D

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CAMERA: IMAX MK IV 65mm at ISO 250, rigged directly overhead at 90 degrees, sensor plane parallel to the water.
LENS: Zeiss Otus 85mm T2.5, stopped to T3.5, focus on the face, water surface holding sharp for two feet around.
LIGHT: Sun at 70 degrees, 4.900K, entering from the upper-left of the frame. Water refracts it into moving caustic nets across the shoulders and the pool floor. Wet skin highlights at 88 IRE, submerged shadow at 22 IRE. Body throws a soft displaced shadow onto the tiles four feet below.
SUBJECT: Floating on the back, arms open, hair fanned and suspended, eyes open toward the lens, chin just breaking the surface, water line cutting across the collarbone.
FOREGROUND: Water surface tension and a scatter of droplets closest to the lens, out of focus.
MIDGROUND: Face and shoulders sharp, caustics moving across them.
BACKGROUND: Pool floor tiles refracted and wavering, shadow of the body drifting out of register.
WARDROBE TONAL BEHAVIOR: Dark swim fabric turning near-black under water, one wet edge above the surface holding a hard specular.
MAKEUP SURFACE PHYSICS: Real skin, pores visible on the cheek and forehead, water beading along the hairline, lashes clumped and wet, eyes reflecting the sky, no smoothing.
POST BEHAVIOR: Kodak Vision3 250D 5207, 65mm film grain structure, visible and organic, halation on the surface specular, restrained contrast, cool cast in the submerged shadow.
COMPOSITIONAL GEOMETRY: Body on a diagonal from lower-left to upper-right, water occupying the rest as an empty moving field, symmetry deliberately refused.
MOOD & ART DIRECTION: Composition and art direction inspired in the work of award-winning directors.
Papel
Briefing, direção de fotografia em texto e produção de imagem
Formato
4:5 para feed e lookbook
04
Processo
1retrato de origem
7cenários
7fichas de set
1geração por cena

Saiu de primeira. Não teve rodada de correção nem imagem reprovada: as sete cenas saíram certas na primeira geração. Num teste tão inicial, isso diz menos sobre sorte e mais sobre o briefing. Quando a ficha resolve câmera, luz e pele antes de gerar, sobra pouco para a ferramenta inventar.

Variação dentro do controle. As sete fichas usam duas câmeras, quatro lentes e três filmes. É variação suficiente para parecer um ensaio feito em dias diferentes, sem que nenhuma cena saia da mesma família de cor e acabamento.

O que eu olharia num próximo teste. Em quatro fichas a modelo é chamada direto pela referência (@image_1). Nas outras três, piscina, macro e estúdio, a ficha descreve só pose e situação. Vale testar o quanto da fidelidade vem da referência e o quanto vem da descrição da pele.

05
Resultado
Modelo numa bicicleta, vista de baixo contra o céu azul
01Bicicleta
Modelo de blazer preto em estúdio com fundo cinza
02Estúdio
Modelo de vestido preto e botas marrons num banco de pedra, olhando o celular, com um poste de ferro em primeiro plano
03Banco de rua
Modelo de óculos escuros agachada numa escada de azulejo verde, vista de cima com lente grande-angular
04Escada de azulejo
Modelo puxando a gola de um tricô verde sobre a boca, contra o céu claro
05Gola de tricô
Close macro do rosto da modelo, com um olho, a boca e a textura da pele
06Macro
Modelo boiando de costas numa piscina, vista de cima, com o cabelo espalhado na água
07Piscina

O que ficou

Para uma marca, consistência de personagem não é detalhe técnico, é o que permite usar IA numa campanha sem que a modelo vire outra pessoa no terceiro post. O teste mostrou que dá para abrir bastante o leque de cenários a partir de uma foto só, desde que o briefing trave o que não pode mudar.

O trabalho de direção continua o mesmo de um set: decidir câmera, luz e acabamento para cada cena. A diferença é que tudo isso precisa estar escrito antes, porque a ficha é o set.

Continue

Próximo

Laboratório: testes fora de projeto

Contato

Tem um briefing?
Manda.

[email protected]