Disclaimer: This is an independent creative test made with AI, for demonstration only. It isn't an ad for any brand shown or named, and isn't affiliated with, sponsored or endorsed by them. All trademarks belong to their owners
Nano Banana Pro + Seedance 2.5 - dark factory-style film for a hoodie and a bag
A dark factory-style product film for a hoodie and a bag, with no people and no real factory
Can you make one of those slick factory "how it's made" videos without a factory, a crew or a single real stitch?
That was my first test for this series. I picked two products, a black zip hoodie and a long orange calf-hair shoulder bag, and gave each one 10 seconds. I didn't want any people in these, so you only ever see the machines, the tools and the product in a dark workshop.
Here's my exact process.
1. Make a clean product shot first
First, I need the product on its own. For the hoodie I made one from a prompt alone: laid flat on white, zip closed, hood up, and no logos anywhere on it.

Exact prompt
Create a new photorealistic image. Simple e-commerce product photograph on a seamless pure white studio background. THE VIBE: Clean, minimal, catalogue-style product shot, the garment is the only subject. THE SUBJECT: A full-zip hooded technical track jacket, laid flat and neatly arranged, hood up and smoothed, zip closed to the chest, sleeves folded symmetrically. Matte black body with dark charcoal chest panels, a tonal charcoal chevron seam across the chest, fine tonal piping, black rubberized welt pockets, matte black zipper with silver teeth. No logos, no lettering, no labels, no tags, no marks anywhere on the garment. THE SETTING: Seamless white studio sweep, nothing else in frame. THE LIGHT: Soft, even, diffused studio light from above and front, with a gentle soft shadow beneath the garment grounding it to the white surface. Clean, neutral white balance. THE KEY DETAILS: Fine fleece nap and stitch detail visible but restrained. THE COMPOSITION: Jacket centred in a 16:9 landscape frame, filling most of the frame height with generous white space around it. THE CAMERA: Sharp, straight-on commercial product capture, deep focus across the whole garment, no background blur. Every element crisp and true to colour. No text, no logos, no branding of any kind.
For the bag I used a product photo instead, so the shape and the little gold zip pulls came from the real thing.
2. Make one still that sets the look
Then I make one still of the world I want. Here it's the needle and presser foot of an industrial machine in a pure black void, with one hard light from the left and a cold blue rim from the right. Everything else falls to black.

Exact prompt
Create a new photorealistic image. High-end industrial product-craft photograph. THE VIBE: A precise, mechanical, luxury-industrial still of a sewing machine's needle at work, the moment before the needle drives through the fabric. THE SUBJECT: The presser foot and needle of an industrial lockstitch sewing machine, seen from a low three-quarter angle from the front, the needle tip sharp in the foreground, a length of dark charcoal technical fleece held under the foot, a line of black thread running from the tension disc down to the needle eye. No brand names, no logos, no lettering anywhere on the machine. THE SETTING: A pure black void. Nothing behind the machine but darkness, no room, no windows, no people. THE LIGHT: A hard low-key key from camera-left at about 30 degrees, pure directional light with crisp shadows, and a cold blue-white rim light from camera-right catching the steel edges of the needle bar, presser foot and thread. Exposed for the key; the rest of the frame sinks into crushed black. THE KEY DETAILS: Fine nap of the fleece catching the key light, a bead of light oil on the steel, thread fibres catching the cold rim. THE COMPOSITION: Strong diagonal from the upper-right needle down to the lower-left fabric, the needle as the sharpest point of the frame, generous black negative space. THE CAMERA: Macro lens look at a steep low angle, razor-shallow depth of field with the needle eye crisp and the background dissolving into creamy bokeh, protected highlights, crushed blacks, fine grain across the whole frame. Every element tactile and present, hyperreal. No text, no logos, no branding of any kind.
In the video prompt I tell the model to take only the lighting and the steel from this still, and nothing else from it.
3. My first video was way too slow
My first hoodie video had four scenes in 10 seconds. It sat on the same needle shot for about half the clip before the jacket even showed up.
Exact prompt
Create a new video where a black full-zip hooded technical jacket is made on an industrial sewing machine in a dark, precise workshop. The mood is mechanical, luxury-industrial and restrained, with a hard low-key light and a pure black void around the machine. Fabric and machine move with high energy and the camera stays tight and deliberate. [SCENE 1] Open on the presser foot and needle from [Image2], held in a pure black void, a length of dark charcoal fleece sitting under the foot. The frame is locked for a beat while the needle begins to drop. [SCENE 2] The needle drives down through the fleece and the thread runs taut; the camera slowly pushes in on the needle eye as the steel rim-light flickers across the bar. [SCENE 3] The fabric is lifted from under the foot and the jacket from [Image1] unfolds across the frame, matching its exact colourway, chevron seam and black zip. The camera pulls back, tracking the garment as it turns. [SCENE 4] The jacket from [Image1] is smoothed flat on the stitching bench in the same hard key light, hood up, zip closed. The camera glides alongside it at shoulder height, then settles into a static lock on the finished garment. Use the jacket in [Image1] as the product and match its design, colour and logo-free finish exactly. Take only the lighting and steel texture from [Image2] — not its surroundings. No text, no logos, no branding anywhere.
It looked nice, but nothing really happened for five seconds.
4. Add beats, then hold the product at the end
So I rewrote it with way more beats: the needle punching down, the fleece unrolling, a blade cutting across the panels, the zip teeth snapping shut, the hood, then the jacket. I gave the last few seconds to the jacket alone, large and centred, on a slow push-in.
Exact prompt
Create a new video: a fast, rhythmic product-craft film of a black full-zip hooded technical jacket being assembled in a dark, precise workshop. Hard low-key light, pure black void, shallow focus with creamy bokeh, crushed blacks, fine grain. Precise, mechanical, luxury-industrial. Fast cuts on the beat, high-energy motion throughout. [SCENE 1] 0-1s: Macro on the needle from [Image2] punching down into charcoal fleece, the presser foot pushing along a stitch line. [SCENE 2] 1-2s: Whip-pan off the needle onto the black fleece unfurling across steel. [SCENE 3] 2-3s: A top-down blade slices across the panels, crash-moving down the frame. [SCENE 4] 3-4s: The chevron seam from [Image1] is laid in along a lateral track, the stitch line running straight across the chest. [SCENE 5] 4-5s: Heat-press on the zip tape with steam rising; the silver zip teeth interlock in a snap-zoom. [SCENE 6] 5-7s: Three-cut assembly burst: the hood, a bar-tack, and the zip pull snap into place at 120fps, the garment filling the frame. [SCENE 7] 7-10s: The full jacket from [Image1] held large and centred in the frame, hood and chest panels fully visible, a slow push-in to a locked hero frame in the black void. Match the jacket from [Image1] exactly: its colourway, chevron seam, panels and zip must not change, and the garment must stay large and clearly readable in the final three seconds. Take only the lighting and steel texture from [Image2], not its surroundings. No logos, no text, no lettering, no branding anywhere on the garment or in frame. No faces, no extra fingers, no melting fabric, no headless mannequin shape.
I kept the same two references, and this time it actually moves.
5. Go all in on the bag
For the bag I pushed it a lot further: 20 beats in 10 seconds. A die press coming down on the hide, a view looking up through the needle plate, a push straight through the open zip teeth, a row of finished bags, then the bag alone in the dark.
Exact prompt
Create a new video: a fast, rhythmic "how it's made" product-craft film following an elongated persimmon orange-red calf-hair shoulder bag from raw hide to finished object in a dark, precise leather workshop. Hard low-key light from one side, a cool steel-blue rim light, warm practical glow pooled on the work, crushed blacks, shallow focus, fine grain. The persimmon calf hair is the only saturated color in every frame; everything else is dark steel, black and grey. Precise, mechanical, luxury-industrial. Cuts land on the beat at two per second, high-energy motion throughout, gliding and tracking moves with the work, with extreme angles, speed ramps and whip-pans between beats. Any hands are gloved and seen from behind or in tight close-up, never a face. [SCENE 1] 0-0.5s: Extreme macro glide along the persimmon calf-hair nap, raking light catching every fiber. [SCENE 2] 0.5-1s: Overhead whip-pan off the hide onto a steel cutting table. [SCENE 3] 1-1.5s: Extreme low angle looking up at a die press descending over the hide. [SCENE 4] 1.5-2s: Macro on the die biting through the persimmon hide, fibers lifting and scattering. [SCENE 5] 2-2.5s: Side-rail track alongside the cut panel as it slides off the table. [SCENE 6] 2.5-3s: Macro tracking the path of a skiving blade paring the panel edge. [SCENE 7] 3-3.5s: Extreme macro looking up through the needle plate at the needle hammering down. [SCENE 8] 3.5-4s: Fast lateral track running with the seam under the presser foot. [SCENE 9] 4-4.5s: Overhead spin along the stitch line, rotating fast with it. [SCENE 10] 4.5-5s: Close tracking on the presser foot, persimmon leather rushing beneath it. [SCENE 11] 5-5.5s: Dolly along a piped seam, focus racking down the line. [SCENE 12] 5.5-6s: Diagonal push-in as the piping cord feeds into the seam. [SCENE 13] 6-6.5s: Macro orbit around a small gold zip pull being set onto the zip. [SCENE 14] 6.5-7s: Low-angle push through the open zip teeth. [SCENE 15] 7-7.5s: Close-up as the bag body is turned right side out by gloved hands seen from behind. [SCENE 16] 7.5-8s: Parallax slide past the finished stitched seams, the persimmon nap glowing. [SCENE 17] 8-8.5s: Wide, then a fast dolly-in on a heat press clamping down on the bag. [SCENE 18] 8.5-9s: Overhead on the press, steam bursting out of the sides. [SCENE 19] 9-9.5s: Low-angle whip along a row of finished bags in a dark void. [SCENE 20] 9.5-10s: Fast orbit sweeping in and settling into a held, locked hero of the finished bag from [Image1], large and centered in the black void, the whole bag fully readable. Match the bag from [Image1] exactly: its elongated shape, persimmon orange-red calf-hair surface, slim flat strap, top zip and small gold zip pulls must not change, with no top handle added. [Image1] is the finished bag only and appears clearly only in the final scene; every earlier piece is raw persimmon calf hair, kept in the same color. Take only the bag from [Image1], not its grey backdrop. No logos, no text, no lettering, no branding anywhere in frame. No faces, no extra fingers, no melting or warping leather.
Two rules did most of the work here. The orange calf hair is the only saturated color in every frame. Everything else is black, steel and grey, so your eye goes straight to the product. And hands only show up once, in black gloves.
Why it works
The black void meant I only had to get three things right: the metal, the light and the product. Then the pace came from writing way more beats, and I held the product still for the last few seconds so you actually get a good look at it.
Your turn: make one still of your product's world, dark with one hard light, and build the video around it.
If writing 20 beats sounds like a lot, Emero writes the prompts for you and keeps your look saved between chats. All at cost, no markup.
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