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Building Scenes

Tap actions

Give any object a job when a visitor taps it: open it in a fullscreen viewer, fly the camera over to it, or follow a link.

Open in the interactive manual →

The interactive version has full-text search, a table of contents, and light/dark themes.


Objects can do something when a visitor taps them. Select one, open Properties ▸ Tap action, and choose from When a visitor taps this. The control appears on geometry, 3D text, groups, and cables.

ActionWhat the visitor getsGood for
NothingThe default: the object is scenery.Everything you haven't singled out.
Inspect: fullscreen viewerThe object lifts into a fullscreen lightbox on its own lit stage, where it can be orbited and zoomed on its own. Close with Esc, the ×, or a click on the backdrop.Products, exhibits, hero models, anything worth a close look.
Move to: fly the camera hereThe camera flies over and frames the object, leaving the visitor standing in front of it. The Back button returns them to where they were.Tap-to-travel wayfinding: make landmarks their own navigation.
LinkNavigates like a link block: to a URL, another page in the scene, or a saved viewpoint.Signs, doors, buttons, anything that should send people somewhere.

Camera distance

Inspect and Move to both work out a camera distance from the object's own size, which is right most of the time. When it isn't, set Camera distance (m). Leave it blank for Auto. For Inspect it's the distance the lightbox opens at (the visitor can still orbit closer or further); for Move to it's how far away the camera lands. Values are clamped to 0.1–1000 m, and a Move-to distance can never park the camera inside the object: it's pushed back out to clear the object's own extent.

Auto measures the object as it actually renders, children included, and aims at the middle of what it measured rather than at the object's pivot. That matters most for groups and imported models, whose origin often sits at a corner or on the ground: a 30-metre landmark gets a standoff to match its real size and lands centred in frame, instead of the visitor arriving inside it. Small objects benefit at the other end: framing a half-metre hero piece also lowers the zoom-in floor, so a visitor can lean right in on it.

What travels into the fullscreen viewer

Inspect brings the tapped object and its children, so a product card built as a group keeps its label, image, and video on the stage. Those child blocks are scenery there: a link inside the viewer shows its label but doesn't navigate.

Tap actions only fire for visitors In the editor a click still selects the object, as always: nothing flies anywhere. To try one, open the preview or the published scene. Dragging across an object to orbit doesn't count as a tap either, so the camera never runs off mid-drag.
The fullscreen viewer is a second 3D view It costs real GPU work, so the main scene stops rendering while it's open and phones stay comfortable. That part is automatic, but it's a good reason to reserve Inspect for the handful of objects that earn it rather than putting it on everything.
Spotted something off, or want a topic covered? Email hello@3dcms.info.