A shake effect makes a layer jitter, bounce, or rattle for a short burst — the kind of punchy movement you see on beat drops, transitions, and hype edits. In Alight Motion, you build shakes with keyframes on a layer’s transform properties, or you use the built-in Auto-Shake effect for a quicker start. This guide teaches both methods from scratch: what a shake actually is, how to prepare your layer, how to time the movement, how to control intensity, and how to avoid the mistakes that make shakes look messy.
Looking for ready-made presets instead? Our Alight Motion shake effect download page collects them. Below, you learn how to create your own.
What a shake effect actually is
A shake is not a single button or a magic filter — it is rapid, repeated change in a layer’s position, scale, or rotation over a short time. Think of it as the layer being nudged in different directions several times per second, then settling back to rest.
The three ingredients of any shake:
- Direction — which property moves (position is the most common; rotation adds chaos; scale adds punch).
- Intensity — how far the layer moves from its resting place on each nudge.
- Speed — how many nudges happen per second (controlled by keyframe spacing).
Once you understand that a shake is just alternating keyframe values, you can build any shake style — subtle camera-style rumble, hard beat-drop hits, or wild glitchy chaos — without relying on someone else’s preset.
Before you start: prepare the layer
A few minutes of setup saves you from re-doing the shake later:
- Choose what shakes. Shake the single layer you want to emphasize — usually the clip, text, or image that lands on the beat. If several layers must move together, group them first so they share one set of keyframes.
- Decide the shake zone. A shake usually lasts less than a second (a beat drop, an impact, a transition). Mark the start and end points on the timeline before you place any keyframes.
- Scale up slightly first. Shaking moves a layer away from its rest position, which can reveal the layer’s edges against the background. Scale the layer up a little (so its edges sit past the frame edges) before animating — this is the single most useful prep step.
Method 1: Keyframe shake from scratch
This is the manual method, and it gives you full control. If you are new to keyframes, read our keyframes guide first — it explains the add-keyframe button, the playhead, and the curve editor this tutorial relies on.
Step 1 — Set the rest position
Select the layer, move the playhead to the start of the shake zone, and add a keyframe on Position at the layer’s normal resting place. This “rest” keyframe is your anchor — every nudge returns toward it.
Step 2 — Add alternating position keyframes
Move the playhead forward a few frames (2–4 frames is a good starting gap) and drag the layer slightly off-center — left, right, up, or down. A keyframe is recorded automatically. Move the playhead a few more frames and drag the layer the opposite way. Repeat 4–8 times across the shake zone, alternating directions. Each keyframe should sit only a few frames from the previous one.
Step 3 — Settle back to rest
End the shake by placing a final keyframe at the original rest position, a few frames after the last nudge. Without this, the layer freezes in a random offset and the shake looks like a mistake.
Step 4 — Add scale or rotation (optional)
Position alone makes a decent shake, but combining properties sells it:
- Scale: alternate tiny scale changes (for example, 100% → 103% → 100%) on the same rhythm as the position keyframes for a punchy, swelling shake.
- Rotation: alternate small tilts (a degree or two in each direction) for a chaotic, handheld feel. Keep rotation subtle — large angles look sloppy.
Method 2: The Auto-Shake effect
Alight Motion ships with an effect called Auto-Shake (documented in the official Alight Motion Effect Guide as a Move/Transform effect). It moves the layer randomly over time within parameters you set, so you get a shake without placing every keyframe by hand.
Use it when you want a quick result or a natural-looking random wobble. Practical tips:
- Apply it to the layer, then adjust the parameters while watching the preview — start subtle and increase until the shake reads on screen.
- Auto-Shake is random by design, so it will not land its hits on specific beats. For beat-synced edits, the keyframe method gives you exact control.
- You can combine both: use Auto-Shake for the base wobble, then add a few keyframed position hits where you want emphasis.
Controlling intensity: smooth vs. aggressive shake
Intensity is controlled by two things: how far each nudge moves the layer (amplitude) and how many nudges fit into the shake (frequency).
- Smooth shake (camera rumble, tension): small nudges (a few pixels / tiny tilts), keyframes 3–5 frames apart, gentle easing between them. The layer trembles rather than jumps.
- Aggressive shake (beat drops, impacts): larger nudges, keyframes 1–3 frames apart, and a scale punch layered on top. The motion should feel violent but brief — under a second.
Rule of thumb: if you cannot tell what the layer shows anymore, the shake is too strong. The subject should stay readable through the movement.
Timing and easing
- Keyframe spacing is speed. Closer keyframes = faster, more violent shaking. Further apart = slower wobble. Adjust spacing before changing anything else.
- Ease the entry and exit. The first and last keyframe pairs benefit from easing so the shake ramps in and settles out instead of starting and stopping dead. The middle of the shake can stay linear — that raw, even jitter is what reads as “shake.”
- Keep it short. Most good shakes last 0.2–0.8 seconds. Longer shakes exhaust the viewer.
Common mistakes that ruin shakes
- Shaking everything. When every layer shakes, nothing stands out. Shake one element per moment.
- No rest keyframe at the end. The layer freezes off-center. Always return to the rest position.
- Too few keyframes. Two or three nudges read as a wobble, not a shake. You need several rapid direction changes.
- Too much rotation. More than a couple of degrees looks like the camera is broken, not energetic.
- Revealed edges. The layer’s edges flash into frame during big nudges. Fix by scaling up before animating (see the prep step above).
- Shake plus low frame rate. Very fast keyframed movement at a low project frame rate turns into strobing mush. If the shake looks like static noise, your project frame rate may be too low for the speed of motion.
Making it look natural
- Sync to the beat. Place the hardest nudge exactly on the beat drop or impact sound. Shakes feel “right” when the audio and motion agree.
- Vary the pattern. Real handheld shake is never perfectly symmetrical. Mix up nudge directions and distances slightly instead of repeating the same left-right-left-right pattern.
- Consider Motion Blur. Alight Motion’s Motion Blur effect softens very fast movement — a light application can take the harsh digital edge off an aggressive shake.
- Use it sparingly. One well-timed shake per beat drop is powerful. Constant shaking just tires the viewer’s eyes.
Troubleshooting shake problems
- The shake looks jittery and broken, not smooth: check your preview quality first — low preview resolution can make fast motion look worse than it is. Also confirm your keyframes are evenly spaced.
- Edges of the layer flash into frame: scale the layer up a bit more and re-check.
- It looks mechanical: add easing to the first and last keyframe pairs, and vary nudge distances.
- The exported video looks different from the preview: review our Alight Motion troubleshooting guide and double-check your export settings.
Keep learning
Shakes are built on keyframes, so the deeper your keyframe skills, the better your shakes. Continue with our keyframes masterclass, browse the top 10 Alight Motion effects for ideas to pair with shakes, or grab ready-made presets from the shake effect download page when you need speed over control.
Sources consulted: Official Alight Motion Effect Guide — Auto-Shake entry (moves the layer randomly over time within specified parameters; Move/Transform category); official Alight Motion Help Center article on animation easing curves (keyframe basics).