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Journal

Notes on 3D knitwear & digital fashion

Practical thinking on virtual sampling, the tools we build with, and how to move a knitwear idea from concept to the factory floor.

Virtual sampling render
Sampling

Why virtual sampling matters

How 3D sampling reduces development time, improves approvals and lowers physical sample waste for knitwear brands.

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CLO3D and APEX workflow
Workflow

CLO3D and APEX workflow

How visual workflow and stitch-level development support faster communication between design and production teams.

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Production-ready tech pack
Production

Production-ready tech packs

What suppliers and factories need inside a strong tech pack to move from concept approval to manufacturing.

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Yarn, gauge and stitch selection
Development

Choosing yarn, gauge & stitch

How yarn count, gauge and stitch structure shape the look, feel and cost of a knit — and how we plan them in 3D.

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Digital fabric and material rendering
Materials

Digital fabrics & realistic rendering

How scanned and digital fabrics make a 3D garment read as real cloth — drape, sheen, colour and texture.

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Sustainable digital fashion
Sustainability

3D fashion & sustainability

How digital sampling cuts fabric waste, water and shipping — designing responsibly without slowing down.

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Selling collections with 3D renders
Sales

Sell with 3D renders & linesheets

How photoreal renders, 360° turntables and digital linesheets win buyer approvals before bulk.

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What to include in a knitwear brief
Getting started

What to include in a brief

A simple checklist of what to send so your 3D knitwear project starts fast and stays on track.

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Garment animation and 360 turntable
Presentation

Animation & 360° turntables

Where motion and turntable renders add value — for e-commerce, presentations and social content.

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Sampling

Why virtual sampling matters

Traditional knitwear development moves in slow, expensive loops: knit a physical sample, ship it, review it, mark corrections, then knit it again. Each round costs yarn, machine time and — most painfully — weeks on the calendar. Virtual sampling collapses those loops. The garment is built and reviewed on screen first, so most decisions are made before a single physical prototype exists.

Faster approvals

Because a 3D sample can be rotated, recoloured and re-fitted in hours, feedback cycles that used to take a week happen in a day. Buyers and design teams review the same photoreal render, comment on it, and sign off — no waiting on couriers, no ambiguity about what the fabric or fit will really look like.

Less waste, lower cost

Every physical sample that never gets made is yarn not dyed, garments not shipped, and offcuts not thrown away. For a brand developing dozens of styles a season, cutting physical rounds by even half is a meaningful reduction in both cost and environmental impact.

Better decisions, earlier

The real value is not just speed — it's confidence. Seeing colour, gauge, drape and construction together, early, means fewer surprises at bulk production. Virtual sampling turns guesswork into an informed approval.

Start a virtual sample with us →

Workflow

CLO3D and APEX workflow

Great 3D knitwear sits on two pillars: an accurate knit structure and a convincing garment simulation. We build the first in Shima Seiki APEX and the second in CLO3D — and the handoff between them is where a lot of the quality comes from.

Stitch-level development in APEX

APEX lets us program knit at the stitch and gauge level — the same language the knitting machine understands. That means the structure, transfers and colour work we design are grounded in what can actually be produced, not just what looks good in a picture.

Simulation and fit in CLO3D

In CLO3D the garment comes to life: fabric weight, drape, fit on an avatar, colourways and trims. Because the knit is already technically sound, the simulation reads as real cloth rather than a flat texture wrapped on a shape.

One shared visual language

The biggest win is communication. Design, technical and production teams all look at the same visual — reducing the back-and-forth that email threads and flat sketches create. Everyone aligns faster because everyone is seeing the same thing.

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Production

Production-ready tech packs

A tech pack is the contract between your idea and the factory. When it's complete, production moves smoothly; when it's thin, you get costly questions, wrong samples and delays. A strong knitwear tech pack removes ambiguity.

What a strong tech pack includes

Clear technical flats and construction views; a full measurement chart with grading; yarn, gauge and stitch details; colourways and Pantone references; trims, labels and packaging; and any special construction or finishing notes. Renders and reference images sit alongside the specs so nothing is left to interpretation.

From approval to manufacturing

Once a 3D sample is approved, we translate it into documentation a supplier can act on directly — the same measurements and construction they'll use on the floor. That continuity from render to spec sheet is what keeps bulk true to the design.

Fewer questions, fewer errors

A good tech pack anticipates the factory's questions before they're asked. That means fewer emails, fewer wrong samples, and a faster path from concept approval to production.

Request a tech pack →

Development

Choosing yarn, gauge and stitch for knitwear

Before a knit looks like anything, three decisions quietly set its character: the yarn, the gauge and the stitch structure. Get them right and the garment feels intentional; get them wrong and no amount of styling will fix it. Planning these in 3D means you can test the combination before committing yarn or machine time.

Yarn: hand, weight and fibre

Yarn count and fibre decide the weight and hand of the fabric — a fine merino reads very differently from a chunky lambswool or a cotton blend. Fibre choice also affects drape, warmth, pilling and price. We match yarn to the intended season, market and price point, then represent its weight and sheen in the 3D fabric.

Gauge: fine or chunky

Gauge (how many needles per inch) controls how fine or bold the knit looks and how the surface behaves. A high gauge gives a smooth, refined face; a low gauge gives a heavier, more textural piece. Gauge also interacts with construction and cost, so it's worth deciding early.

Stitch structure: where the design lives

Cables, ribs, jacquard, intarsia, pointelle — the stitch is where a knit gets its personality. Because we program at stitch level in APEX, the structures we show in 3D are ones the machine can actually make, so what you approve is what you can produce.

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Materials

Digital fabrics and true-to-life rendering

A 3D garment is only as convincing as its fabric. Two designs with identical patterns can look completely different depending on how the material behaves — and that behaviour is what turns a flat shape into cloth the eye believes.

What a digital fabric carries

A good digital material describes far more than colour. It carries physical weight and stretch (so it drapes correctly), surface texture and knit structure, sheen and roughness, and how light passes through or reflects off it. Together these decide whether a render reads as wool, cotton, satin or a technical blend.

Scanned and measured materials

Where accuracy matters, real fabrics can be scanned and measured so the digital version matches the physical one — the same drape, the same colour under light. That link between real and digital is what makes virtual samples safe to approve.

Colour you can trust

Consistent colour management and Pantone references keep on-screen colour close to the finished garment, so colourways you sign off in 3D don't surprise you in bulk.

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Sustainability

3D fashion and sustainability

Sampling is one of the least visible but most wasteful parts of apparel development. Every physical round means yarn, dyeing, energy and international shipping — often for a garment that is corrected and discarded. Digital development attacks that waste directly.

Fewer physical samples

When most decisions are made on screen, the number of physical prototypes drops sharply. Less yarn is knit, less fabric is dyed, and fewer parcels cross the world just to be reviewed and thrown away.

Lower footprint per style

Reducing rounds cuts water, energy and freight per style. For a brand running a full seasonal range, those savings add up quickly — both in cost and in environmental impact.

Responsible, not slower

The point isn't to trade speed for sustainability. Digital sampling is usually faster and greener at the same time — you design responsibly without adding weeks to the calendar.

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Sales

Sell collections with 3D renders and linesheets

3D isn't only a development tool — it's a sales tool. Photoreal renders let you present a collection convincingly before a single physical sample exists, which means you can gauge demand and win approvals earlier.

Approvals before bulk

Buyers can review renders, 360° turntables and colourways and place orders against them. You commit to production with confidence, knowing the design has already been validated rather than guessing at demand.

Digital linesheets and lookbooks

Renders drop straight into linesheets, lookbooks and pitch decks. You can show a full range — every colourway and variation — without the cost of photographing physical samples, and update it instantly when something changes.

Consistent, on-brand imagery

Because lighting, background and styling are controlled, every style looks like it belongs to the same collection — a level of consistency that's hard and expensive to achieve with physical photo shoots.

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Getting started

What to include in a knitwear brief

A clear brief is the fastest way to a great first draft. You don't need a finished tech pack to start — but the more of the following you can share, the sooner we can align and the fewer revision rounds it takes.

The essentials

Send whatever you have: sketches, moodboards or reference images; the garment type and target market; yarn, gauge or fabric ideas (even rough ones); colourways or Pantone references; and key measurements or a size range if you have them. Reference links to similar products are always useful.

Nice to have

If you know your timeline, quantity, price target, or the buyer you're presenting to, tell us — it helps us recommend the right level of detail. Any existing tech pack, spec sheet or previous style you want to build on speeds things up further.

No tech pack? No problem

If you're a newer brand without formal documentation, we can help organise rough references into a clear development direction. The goal of the brief is simply to make sure we're building the garment you actually have in mind.

Send your brief on WhatsApp →

Presentation

Garment animation and 360° turntables

A still render tells you what a garment looks like; motion tells you how it behaves. Turntables and short animations show drape, movement and fit in a way a single image can't — and they're increasingly what online shoppers and buyers expect.

360° turntables

A turntable render lets anyone inspect a style from every angle — front, back, side and detail — without a physical sample in the room. It's ideal for buyer reviews and for product pages where customers want to see the whole garment.

Short garment animation

A few seconds of motion on an avatar reveals how the fabric moves and sits on the body. For knitwear especially, seeing weight and drape in motion builds confidence that a flat image simply can't.

Content that works everywhere

Turntables and animations drop straight into e-commerce, linesheets, presentations and social content — one 3D asset, reused across every channel you sell through.

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Have a style in mind?

Send us a sketch or reference and we'll turn it into a photoreal 3D sample — first draft within 72 hours.

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