A practical CLO workflow for turning virtual fit feedback into a checked pattern correction
- Translate each fit comment into an affected piece, a measurable change, and a seam relationship to check.
- Use linked editing when the intended correction is shared; keep local or asymmetric changes independent.
- CLO synchronizes 2D pattern adjustments with 3D, and a pattern edit during simulation ends that simulation.
- Simulate the revised garment, recheck measurements and adjoining seams, and hand off one versioned record.
A useful virtual-fit review ends with a correction that can be measured, checked in the garment, and handed to the next person with its reasoning intact. CLO brings 2D pattern editing and 3D garment simulation together, with linked editing for outlines that should change as a group. Its Linked Editing guide explains how to link different outlines, while the Synchronize Pattern guide notes that 2D adjustments sync with 3D and that a 2D pattern modification ends an active simulation. With those behaviors in mind, the workflow is straightforward: define the correction, choose which outlines should move together, simulate the revised garment, then verify measurements and seams before handoff.
1. Turn the fit comment into a measurable correction
Before changing a pattern, pin down where the issue is, what result is wanted, and why. Record the garment style and pattern version, the size or sizes reviewed, the avatar and material setup, the affected point of measure (POM), current and target values, the pattern pieces involved, and the photo or view that shows the concern.
UpHance’s fit-session guidance recommends logging corrections against the POM table, linking fit photos to the measurements they illustrate, and saving the marked-up specification as a new version. That gives a small sample room a clear shared reference: the comment, image, measurement, and current specification all point to the same correction.
A note such as “waist looks loose” needs a measurement before it becomes a pattern instruction. For example, suppose the approved waist circumference is 76 cm and the reviewed digital garment measures 78 cm using the same POM method. The difference is 2 cm. The technical designer still needs to decide where that change belongs, based on the approved fit intent and construction.
Describe both the visible symptom and the intended fit change before editing. A paper in Graphical Models describes the relationship between pattern geometry and fit attributes such as ease and body pressure as complex and nonlinear, and demonstrates an interactive method that predicts 2D pattern adjustments from fit attributes. In practice, treat an image annotation as evidence to interpret against the fit intent—not as an automatic instruction to move a particular line.
Before editing, confirm any setup details that could affect the review, including material behavior such as stretch and drape, construction finish, seam-allowance details, and the POM values for flat and fitted measurements. If the comment depends on one of these, settle the value and add it to the correction record first. That helps ensure the pattern edit addresses the reviewer’s actual concern.
2. Choose which pattern outlines move together
Use linked outlines when the approved correction should preserve a shared shape or relationship. Keep an outline independent when the change applies only to that piece, when the front and back need different treatment, or when the design is intentionally asymmetric.
CLO’s Linked Editing instructions explain how to link different pattern outlines for a shared edit and describe linked editing as applying to both selected segments. This is useful when corresponding outlines need the same geometric adjustment. Select only the segments that share the intended change, then check the selection before editing.
For example, a change to both sides of a matched seam may call for linked outlines if each side needs the same shape change. A front-waist adjustment that should leave the back unchanged calls for an individual edit, even though the pieces meet at the side seam. Either way, check that the seam still sews correctly after the edit.
Include seam allowances in the review. CLO’s seam-allowance properties guide says that with Custom Seam Allowance off, the allowance follows the default preset and snaps to the updated outline. With Custom Seam Allowance on, it preserves its shape when the pattern outline changes; pressing F4 refreshes it to follow the new outline. After editing, confirm the allowance mode and inspect the edge intended for production.
Keep the record connected to the pattern piece and measured point, not just to a screenshot. This makes it easier for the next reviewer to follow the correction from the original fit observation through to the updated pattern geometry.
3. Synchronize the 2D change and run the simulation again
CLO’s documented workflow synchronizes 2D pattern adjustments with the 3D window. Its Synchronize Pattern instructions also explain that modifying a 2D pattern while simulation is running automatically ends the simulation.
After each correction that affects the garment shape, follow this sequence:
- Complete the intended 2D outline edits and confirm which pieces changed.
- Start or resume simulation so the updated garment settles in 3D.
- Review the new garment state, then measure and inspect the affected areas again.
- Log any further correction as a new edit, then simulate and review that result too.
Synchronization brings the 2D changes into the 3D window; a fresh simulation provides the updated garment state for review. Once it has settled, check the areas affected by the correction and send any additional change back through the same edit-and-review cycle.
4. Recheck measurements, seams, and the handoff record
Approve the digital correction only when it meets the intended POM and fit criteria for the size, avatar, fabric settings, and construction details under review. Check both the corrected area and any pattern relationships that could have changed along with it.
Review the garment from the front, back, and side. Compare ease at the chest, waist, hip, and sleeve cap with the specification, and look for seams that pull, pucker, or stray from the intended line. For a waistband change, measure the waist POM using the same method and check the side seams and adjacent balance. For a sleeve adjustment, check the sleeve cap, armhole, and movement need identified in the review.
A good review record captures the method as well as the result. The Stitch Authority sampling-process guide recommends recording the review protocol, conditions, tools, participants, item-level measurements, observations, retained evidence, and any disagreement or repeat. It also recommends agreeing on the measurement method when a disagreement could affect a release decision. Use the team’s established tolerance and measurement method, and record the actual result for each checked POM.
For handoff, save the revised pattern and correction record as one identifiable version. Include the fit comment, affected pieces, before-and-after POM values, seam or construction checks, simulation and review evidence, unresolved decisions, reviewer, and approval status. UpHance recommends keeping the marked-up tech pack, fit photos, and written comments together under version control. The patternmaker or production partner receiving the approved file should also receive the evidence that explains the change.
Measure the full correction-to-handoff cycle
Software speed depends on the whole local workflow. Measure the time from when a fit comment becomes actionable to when the approved pattern package reaches its next owner. Include simulation, checks, rework, and file preparation in the same measurement boundary.
NIST’s manufacturing workcell methodology records when parts enter and leave stations, along with start and end times for individual job instructions. A sample room can adapt that event-log approach to track comment intake, edit start and finish, simulation, measurement review, correction rounds, export, and handoff. Keep active work time separate from waiting time so a supplier delay is not mistaken for pattern-editing time.
For a useful comparison, run a small, repeatable pilot with corrections of similar type and difficulty. Keep the start and end definitions, garment and size context, review criteria, and handoff requirements consistent. Record elapsed and active time, the number of edit-and-review rounds, returned files, and whether the approved measurement and seam checks passed. Report the number and type of cases alongside the median and range so readers can see whether the result reflects typical work or one unusually simple correction.
For example, a team might compare a waist-fit correction in its existing workflow with the same correction type in a trial workflow. If the trial takes 18 minutes for pattern edits, 7 minutes for simulation, 14 minutes for rechecking, and 6 minutes to prepare the handoff, the active cycle is 45 minutes under those assumed inputs. Track waiting time separately, and count the case as complete only once the same measurement and version checks pass.
Why CLO’s correction workflow is practical
CLO gives apparel teams a connected place to edit patterns in 2D, see the synchronized garment in 3D, and link outlines when one correction should apply to multiple selected segments. This can make the path from fit comment to visual recheck easy to follow, while the linked-editing option helps keep corresponding outlines in step when the design calls for it.
The review remains grounded in the pattern and the garment: choose the outlines that should change, make the correction, and assess the updated 3D result. One operational detail matters: a 2D pattern change during simulation ends that simulation. Plan to run it again before assessing the revised garment, and confirm the result with the same measurement and seam checks used to define the correction.
FAQ
Should every comment about a wrinkle become a pattern edit?
No. First identify the fit criterion involved and confirm its measurement or pattern cause. A visible wrinkle can have more than one explanation, so it is worth understanding the issue before changing geometry.
Does CLO keep the simulation running after a 2D pattern correction?
No. CLO’s documented workflow ends an active simulation when a 2D pattern modification is made. Run the simulation again before reviewing the changed garment.
When should a small team compare editing time?
Use a repeatable pilot that includes the same measurement checks and handoff requirements. Report the cases and observed results together so the comparison is useful to the team.