Tutorial by Examples

For example, we can create a ring-shaped cursor fixed to the center of the screen. To fix the cursor to the screen so the cursor is always present no matter where we look, we place it as a child of the active camera entity. We pull it in front of the camera by placing it on the negative Z axis. When...

We’ll first go over gaze-based interactions. Gaze-based interactions rely on rotating our heads and looking at objects to interact with them. This type of interaction is for headsets without a controller. Even with a rotation-only controller (Daydream, GearVR), the interaction is still similar. Sinc...

The cursor primitive is a reticle that allows for clicking and basic interactivity with a scene on devices that do not have a hand controller. The default appearance is a ring geometry. The cursor is usually placed as a child of the camera. <a-scene> <a-camera> <a-cursor>&...

Also known as gaze-based cursor. If we set the cursor to be fuse-based, the cursor will trigger a click if the user gazes at an entity for a set amount of time. Imagine a laser strapped to the user’s head, and the laser extends out into the scene. If the user stares at an entity long enough (i.e., t...

The cursor builds on top of and depends on the raycaster component. If we want to customize the raycasting pieces of the cursor, we can do by changing the raycaster component properties. Say we want set a max distance, check for intersections less frequently, and set which objects are clickable: &l...

To add visual feedback to the cursor to show when the cursor is clicking or fusing, we can use the animation system. When the cursor intersects the entity, it will emit an event, and the animation system will pick up event with the begin attribute: <a-entity cursor="fuse: true; fuseTimeout:...

Note: For this example you need to add an external npm package. If you want to use a mouse cursor of your computer, you need to add aframe-mouse-cursor-component. After if you must include the script using this code: import 'aframe'; import 'aframe-mouse-cursor-component'; // or this requi...