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How to Add 3D Objects to a Video on Your Phone

Published September 16, 2026 5 min read By the ExpoCut team

A floating 3D shape is the fastest way to make a title card or product shot feel produced — and it used to need a desktop and a render queue. ExpoCut’s 3D Object layer does it on the phone: pick a shape or import a model, colour it, set it spinning, and it lives on the timeline like any other layer.

Quick answer

In ExpoCut, tap 3D in the bottom bar (or + ▸ 3D Object). The Presets tab shows a live preview above 13 shapes — Cube, Sphere, Knot, Icosa, Torus, Cone, Dodeca, Octa, Cylinder, Plane, Capsule, Ring, Teapot — a colour row, an Animation row (Spin, Float, Pulse, Bounce, Orbit, Wave, Shake) and a Material row (Standard, Wire, Flat, Glossy, Metal). The Import tab loads your own .glb, .gltf or .obj from Files or a URL. Tap Done — the object lands as a 4-second 3D layer you drag, resize and keyframe; tap Edit on its toolbar to change shape, colour or motion later.

  • 3D is a bottom-bar entry; the picker previews the object live before you add it.
  • 13 preset shapes × 11 colours × 5 materials × 7 animations — enough for badges, bumpers and product accents.
  • Import accepts .glb / .gltf / .obj from Files or a direct URL; a model that fails to load falls back to the selected preset.
  • A 3D object is a normal layer: move it, scale it, keyframe it, give it a transition, put it under a title.
  • Keep one object per scene and match its colour to the frame — a teal torus over a teal backdrop looks designed, a rainbow knot looks like a demo.

The trick with 3D in a phone edit is restraint: one clean shape, one colour that belongs to the frame, one slow motion. ExpoCut’s 3D Object layer makes that a one-minute job — and, if you have a real model, imports it.

Where it lives

3D sits at the left end of the bottom bar’s second page (swipe the bar past Shape and Brush), and on the big + Add Layer sheet as 3D Object.

Step 1 — Pick a shape (Presets)

  1. Tap 3D

    The picker opens on Presets with a live, rotating preview at the top.

  2. Choose a shape and a colour

    Thirteen shapes; tap one and the preview updates. Then tap a colour swatch.

  3. Choose an animation and a material

    Animation: Spin, Float, Pulse, Bounce, Orbit, Wave, Shake. Material: Standard, Wire, Flat, Glossy, Metal. Tap Done.

The 3D Object picker on the Presets tab: a live preview of a purple knot, a Shape grid — Cube, Sphere, Knot (selected), Icosa, Torus, Cone, Dodeca, Octa, Cylinder, Plane, Capsule, Ring, Teapot — a Color row of eleven swatches, and an Animation row starting with Spin. Presets · Import Live 3D preview 13 shapes Colour Animation — Spin · Float · Pulse · Bounce…
The Presets tab. The preview spins the current choice so you can judge the material before it lands. Scroll for the Material row (Standard · Wire · Flat · Glossy · Metal).

Step 2 — Or import your own model

The 3D Object picker's Import tab: the preview, an Import Model section explaining .glb, .gltf and .obj, a + Load from Files button, an https://example.com/model.glb URL field with Load Preview, and a note that custom models fall back to the selected preset if they cannot load. + Load from Files (.glb / .gltf / .obj) …or a model URL
Import takes a model from Files or a direct link. Keep files small (a few MB) — the object is rendered live on the canvas.

A logo exported as .glb from Blender, a product from a manufacturer’s asset pack, a low-poly character — anything with a mesh loads; the colour and material rows then re-tint it.

Step 3 — Place it

A teal torus floating above an egg in a nest on a dark studio backdrop; the timeline shows a 4-second 3D layer on T2 above the 10-second clip on V1. Teal torus — a 3D layer over the clip 3D layer on T2 — 4 s
Done. The torus is a layer: drag it, scale it with the corner grip, trim its 4-second clip, and tap Edit on its toolbar to change the shape, colour, material or animation without re-adding it.
  • Match the palette. Pick the swatch closest to a colour already in the frame; Metal and Glossy pick up the scene’s brightness.
  • Slow motions. Float and Orbit read as premium; Shake and Bounce are for comedy beats.
  • Wire for tech. The Wire material over dark footage is an instant “tech explainer” look; pair it with a monospace title.
  • Layer it. A title on top, the object behind, a shader behind that — three layers, one bumper.

Where to go next

One shape, one colour, one slow spin — 3D that looks intentional, made on a phone.

Frequently asked questions

How do I put a 3D object in a video on my phone?

Tap 3D in ExpoCut's bottom bar, pick a shape from the Presets tab, choose a colour, material and animation, and tap Done. The object lands on the canvas as a 3D layer — drag it into place, resize it with the corner grip, and trim its clip on the timeline.

Can I import my own 3D model?

Yes. The picker's Import tab takes a .glb, .gltf or .obj from Files (+ Load from Files) or from a direct URL (paste the link and tap Load Preview). It gets the same colour, animation and material controls as a preset; if the file can't be loaded ExpoCut keeps the preset shape you had selected.

Does the 3D object export properly?

Yes — the layer is rendered into the exported video on-device like every other layer, with its animation, colour and material. Preview equals export.

Put something solid in the frame

Thirteen shapes, five materials, seven animations, or your own .glb — 3D objects on any video, rendered on your phone.

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