Best fit depends on the approved view and the supplier’s required pattern file.
- Choose CLO when you need 2D pattern work alongside 3D simulation and selectable still, turntable-image, or turntable-video outputs.
- Choose Browzwear VStitcher when the team wants live 2D-to-3D revisions, fit maps, and a DXF handoff that can carry documented ASTM DXF rotation data.
- Choose Optitex when pattern makers need an integrated grading and virtual-sample workflow, plus documented DXF, AAMA, or HPGL exports.
- Keep the approved render, measurement and grading records, pattern revision, and the supplier’s confirmed format together.
The best 3D apparel tool for sample review is the one that produces the visual approval artifact your reviewers need and transfers pattern information in a format the receiving supplier can use. CLO suits teams that need pattern creation and editing with 3D garment simulation, and its V-Ray workflow offers an image, turntable images, or turntable video. Browzwear VStitcher suits teams that want fit maps and edits reflected in the 3D garment during review. Optitex suits teams that revise and grade patterns while reviewing virtual samples across sizes.
A polished render shows how the garment looks from the selected views. It doesn’t, on its own, document pattern accuracy or make a complete supplier handoff. Keep the pattern revision, measurements, grading details, and supplier-ready file with it. Treat the approval image and exchange format as separate requirements, and link both to the same style, size range, and revision.
What to keep with every 3D sample review
Start with the receiving team’s exact file requirement, including its CAD system, format variant, and version. A supplier that requests “DXF” may also need a specific AAMA or ASTM flavor, measurement units, grading data, and a rule for hidden pattern pieces.
TABLE / Scroll horizontally for all columns →
| Review requirement | CLO | Browzwear VStitcher | Optitex |
|---|---|---|---|
| Pattern and 3D workflow | 2D pattern creation and editing alongside 3D garment simulation | Patterns shown in 2D and 3D; 2D changes update the 3D garment | 2D pattern design and 3D visualization in one platform; 2D changes update in 3D |
| Documented handoff evidence | CLO support documents AAMA/ASTM DXF import and DXF export settings, including grading choices | VStitcher 2026.1.2 release notes document rotation values in ASTM DXF and a control for hidden pattern pieces | Optitex’s export help lists DXF, AAMA, and HPGL among supported formats |
| Documented visual review output | V-Ray image, turntable images, or turntable video | Browzwear documents review renders published to Stylezone after garment approval | Optitex documents photorealistic 360-degree images of virtual samples |
| Useful fit-review workflow | Fabric-Aware Strain Map is among CLO’s documented material capabilities | Pressure and tension maps point reviewers to areas for added ease or refinement | Virtual samples can be graded across sizes and reviewed in 3D |
ASTM’s description of D6673 says the practice exchanges sewn pattern-piece data in DXF and grade-rule-table data in a specially formatted ASCII file. That separation is useful when you plan the handoff: a pattern image or geometry file alone may not carry every piece of information the receiving workflow expects. ASTM’s D6673-10 listing marks that edition as withdrawn in 2019.
A receiving checklist should name the file type and version, the included size or size range, units, grade rules, pattern-piece names, and the pattern revision. Add the relevant measurements and tolerances, fabric/material assumptions, and the avatar or fit model used for the review. Record the required seam and cut lines, notches, grainlines, internal lines, and seam allowances, and state whether grading data travels separately; the receiving system determines which fields apply. These records let technical reviewers connect a visual comment such as “raise the hem” to a particular size set and pattern revision.
When CLO fits the review workflow
CLO fits teams that need to develop or edit patterns and inspect the resulting garment in 3D in the same apparel design application. CLO documents pattern creation and editing alongside 3D garment simulation, which connects the visual review to pattern work rather than treating the garment render as a stand-alone image.
For the supplier handoff, CLO’s DXF import instructions identify DXF-AAMA and DXF-ASTM, and name systems such as Gerber, Lectra, Optitex, and StyleCAD. The import settings let users choose units or Auto Scale, and include options for importing pattern annotations and tracing selected lines as internal lines. This can help a team bring the supplier’s pattern into CLO and preserve useful construction information for simulation and review.
A user can select a size group, but only one size group can be exported per file in the documented workflow. The guide also describes exporting grading information in the DXF or an RUL file, or exporting the current size without grading information. Ask the receiving team whether it expects one DXF per size, a DXF with grading, or a separate RUL file before the handoff is prepared.
CLO also provides a documented option to swap cutting and sewing lines on DXF export when the source and receiving CAD systems define those lines differently. That setting matters when a supplier relies on a specific line convention for its pattern room. Include the agreed line mapping in the handoff notes and check the received file in the supplier’s target workflow.
CLO suits a review lead who already knows the visual delivery format. Its V-Ray Image/Video Properties guide offers an image, a 360-degree set of turntable images, or turntable video. The workflow also provides preset or custom image and video dimensions and a transparent-background option. Official release notes and documentation describe an option to render all Colorways from Colorway Mode.
That combination is useful when a review cycle needs both a close still for construction details and a rotating view for silhouette or back-panel review. A transparent background can place the render into an existing approval layout, while custom width and height can match a review platform’s image requirements. These output controls shape how the visual approval packet looks; keep pattern and measurement evidence as separate linked records.
When Browzwear VStitcher fits the review workflow
Browzwear VStitcher fits a team that wants to make a 2D pattern change and judge its effect on the simulated garment without separating the pattern revision from the fit review. Browzwear’s VStitcher workflow article describes patterns displayed in 2D and 3D, with changes such as shortening a hem or creating a pattern piece updating the 3D garment for review.
The same workflow describes pressure and tension maps that highlight areas where the garment may need added ease or refinement. That makes VStitcher a useful candidate when the sample review includes fit-focused comments as well as a visual approval. The maps give the technical team a place to investigate, while the approved measurement record and supplier’s fit criteria remain the basis for disposition.
Browzwear says teams can use the VStitcher digital fabric library or bring in custom libraries for approved brand-specific materials. A review team evaluating a particular supplier fabric can therefore align its digital review inputs with materials the brand has qualified, rather than relying only on a generic fabric appearance.
Browzwear’s workflow article says that after feedback is consolidated and the design is confirmed, VStitcher can generate production outputs including a bill of materials, artwork-placement details, measurement specifications, and DXF files. It also describes approved garments visualized on Browzwear AI models and renders published to Stylezone for final review. That flow fits teams whose review packet combines a stakeholder-facing render with production information after approvals.
For the format-dependent handoff, Browzwear’s VStitcher 2026.1.2 release notes document pattern-piece rotation values exported in ASTM DXF. The notes also document a “Hidden Pattern Pieces” checkbox for including or excluding pieces marked “Do Not Use”; the default excludes those pieces. The handoff specification should state whether the supplier needs pattern pieces marked “Do Not Use” and whether it expects ASTM DXF rotation values.
Browzwear’s VStitcher product page describes 2D drafting and 3D draping in one workspace and fit validation on customizable avatars across sizes. This makes VStitcher a strong shortlist option when your approval centers on responsive fit review and your supplier can confirm the exact ASTM DXF version and included content it accepts. The available product documentation supports that workflow fit; a receiving-team test file establishes whether its pattern exchange behaves as required.
When Optitex fits technical pattern revisions
Optitex fits technical teams that revise pattern geometry, grade size runs, and review the drape of virtual samples in a connected workflow. The company’s Pattern Design Software page describes 2D pattern design and 3D visualization together, with grading tools to create additional sizes from a base or sample-size pattern. It also describes virtual samples in multiple sizes for 3D drape review.
Optitex’s article on the evolution of pattern-making tools says pattern makers can build, modify, and evaluate garments in one environment, where 2D changes update in 3D. It also describes virtual fit models for reviewing fit across size ranges and body types, and synchronized updates that let assessment continue after a fit-driven revision. This workflow makes Optitex a natural candidate when sample approval depends on revising a technical pattern and seeing the result across graded sizes.
Optitex’s Export Command documentation lists formats including DXF, AAMA, and HPGL. The handoff specification should name the receiving system’s accepted export format and version, any required layer convention, and whether grading data resides in the file or a separate record.
For visual approval, Optitex’s product page describes photorealistic 360-degree images of a virtual sample with adjustable lighting and shadows. That output suits a reviewer who needs a rotating garment view for silhouette, print placement, or construction presentation. The supplier handoff still needs the specified pattern data and supporting records, so retain the render beside the corresponding graded pattern revision and measurement specification.
Build an approval packet that stays attached to its pattern revision
Browzwear’s workflow describes approved renders published to Stylezone for final review. Optitex’s product page describes photorealistic 360-degree virtual-sample images with adjustable lighting and shadows. Choose the Stylezone route when stakeholder review runs there, or Optitex’s rotating imagery when approvers need a 360-degree visual.
For a turntable review, record the size, colorway, view set, and render date so each comment refers to the same visual state. A note identifying the back view, for example, helps reviewers distinguish that image from another size or a later render.
Use one revision identifier to link the approved visual, pattern export, measurement sheet, grading information, and review notes. That shared identifier connects visual comments to the technical records sent to the supplier.
The file-format detail changes what the packet must include. In CLO, note whether the DXF contains grading or whether an RUL file carries that data, and document the selected size group. In VStitcher, state whether hidden pattern pieces should be included and whether the receiver can read the ASTM DXF rotation values. In Optitex, name the agreed export type, such as DXF or AAMA, and confirm the receiver’s expected content. In all three cases, send a representative file to the supplier’s receiving workflow before using the format for a production handoff.
Make the shortlist against the supplier handoff
Use this shortlist in sequence. Record the receiver’s CAD system and required pattern-file specification before comparing candidates. Then choose the review output, compare the tool’s documented workflow to the team’s pattern and fit needs, and test one representative pattern with the supplier.
- Choose CLO when the team needs 2D pattern creation and editing alongside 3D simulation, and the review calls for an image, turntable-image set, or turntable video.
- Choose Browzwear VStitcher when reviewers need pressure and tension maps to investigate fit and the technical team values its documented ASTM DXF rotation values and hidden-piece control.
- Choose Optitex when pattern revision and grading across virtual samples are central, and its documented DXF, AAMA, or HPGL export fits the receiving workflow.
- For any tool, link the approved visual, pattern revision, measurement and grading records, and material assumptions to the same style and sample stage.
FAQ
Does a high-quality 3D render prove that a pattern is accurate?
No. A render shows the simulated garment from its chosen view, while pattern review depends on the actual pattern file, size and grading data, measurements, and assumptions used to create the simulation. Keep the approval render and those technical records linked to one revision.
Is “DXF” enough information to request from a supplier?
No. The required variant and data content matter: CLO’s DXF export guide identifies AAMA and ASTM import workflows and lets users export one size group per file, with grading information in the DXF or an RUL file.
Which option should we shortlist for a 360-degree sample review?
CLO and Optitex both document rotating visual output: CLO offers turntable images or turntable video, while Optitex describes photorealistic 360-degree images. Browzwear’s documented workflow publishes approved renders to Stylezone; match the team’s required asset type to the specific output the supplier and reviewers will use.
How can we keep supplier comments attached to the right pattern?
Use one revision identifier on the render record, pattern export, measurements, grading information, and review notes. Include the style, size or size range, colorway, and sample stage so the team can tell which version each comment addresses.