How to curve, warp and twist a pixel stretch
Updated July 10, 2026 · 4 min read
A straight pull gets the effect onto the photo. The shape comes from what you do next. A few deliberate control points can turn a flat stripe into a ribbon that bends around the picture instead of sitting on top of it.
Pixel Stretch Pro gives the ribbon a centerline you can draw and edit. The blue points shape that path in either mode. Shape leaves the finishing twist free, while Warp adds independent width controls to the interior points and keeps the finishing twist within a smaller range. The cleanest edits usually use a little of each rather than pushing one control to an extreme.
Tap for straight, drag for a curve
The sampling bar has an arrow on each side. Tap an arrow and the app makes a straight stretch in that direction. Press and drag the arrow instead and you can sketch the route yourself. That first gesture sets the rhythm, but it is not permanent: the blue points that appear afterwards are there so you can correct it.
Build the curve in six moves
Choose a useful strip of color
Move and rotate the sampling bar until it crosses the colors you want, ideally where the subject meets open background. A striped jacket, painted car, or bright sail gives the ribbon more detail than a flat grey surface.
Pull toward open space
Tap for a straight start or drag the arrow along the route you want. Give the ribbon somewhere to go. Pulling through a face, sign, or other focal point creates work you then have to undo.
Move the blue points
Drag the control points to settle the centerline into one clear arc or a gentle S-curve. Tap the line when you genuinely need another point. More points are useful for a tight route, not as decoration.
Shape the finish
Use the end control to taper the ribbon, fan it wider, or twist the finishing line. Choose Shape when the finish needs a free, full twist. A narrow finish feels fast; a wider one feels more like paint spreading across the frame.
Warp only where it helps
Switch to Warp and pull the orange handles around an interior point to widen or narrow that part of the ribbon. Use it to clear the subject, fill an empty corner, or give a bend more weight without changing the whole path.
Tune the edge, then compare
Open Adjustments for Edge hue and Opacity. Check the result against the original before saving a high-resolution copy. If the effect wins only because it is louder, pull it back.
Shape and Warp are not the same tool
Move the blue points in either mode when the centerline is wrong. Both modes let you set the finishing width and angle, but Shape allows a free finishing twist. Warp adds orange handles to the interior points and keeps the finish within a smaller twist range. The two sides of an interior point move independently, so one edge can make room for the subject while the other fills the background.
A good order is path first, width second, color last. Adjusting everything at once makes it hard to tell which change actually improved the photo.
What Edge hue and Opacity actually do
- Edge hue adds a soft colored fringe around the ribbon's outside edges. It is useful when the strip needs separation from a similar background, but it does not replace the colors sampled from the photo.
- Opacity blends the ribbon back into the original image. Lower it for water, sky, or a quiet portrait; keep it stronger when paint, lights, or patterned clothing are meant to carry the picture.
Why a curved stretch starts to look lumpy
- Too many control points. Start with the fewest points that can hold the curve, then add one only where the route changes.
- A hard turn immediately after the bar. Let the ribbon leave the subject cleanly before asking it to bend.
- Every section has the same width. A small taper or one wider bend gives the ribbon depth.
- The finish is over-twisted. Twist is strongest when it reads as a final turn, not a knot.
- The sampled strip has no color variation. Move the bar before rebuilding the whole curve.
Use Compare to hold the original on screen, and use undo or redo freely while the shape is still moving. For the basic workflow before these controls, start with How to make the pixel stretch effect.
Frequently asked
Can I draw a curved pixel stretch on iPhone and Android?
Yes. On both platforms, tap an arrow for a straight pull or drag it to draw a custom path, then move the control points to refine the curve.
What is the difference between Shape and Warp?
Blue points shape the path in either mode. Shape allows a free finishing twist. Warp adds independent width controls to interior points and limits the finish to a smaller twist range.
Does Warp change the person or object in the photo?
No. Warp changes the stretched ribbon. Smart Subject, when available, is the separate control that keeps a detected subject in front of it.
Why does my pixel stretch look stiff?
Usually the curve is too straight, turns too sharply near the sampling bar, or has more control points than it needs. Try one long arc before adding a second bend.