I have two objects, one cylinder and one polygon, representing a Three.js 3D Object, in an A-Frame scene. All I want is that the polygon changes when hovering over it, like the cylinder.
I have a working demo here: Demo
When the cursor hovers on the cylinder, the text HOVERED appears on the screen, and the color of the cylinder changes, using the Raycaster component. How can I do the same to the polygon?
The polygon was created with this:
AFRAME.registerComponent('foo', {
init: function() {
let points = [];
points.push(new THREE.Vector2(0, 0));
points.push(new THREE.Vector2(1.5, 0));
points.push(new THREE.Vector2(2.5, 1));
points.push(new THREE.Vector2(2.5, 2.5));
points.push(new THREE.Vector2(1, 3.5));
for (let i = 0; i < points.length; i++) {
points[i].multiplyScalar(0.25);
}
let shape = new THREE.Shape(points);
let extrudedGeometry = new THREE.ExtrudeGeometry(shape, {
amount: 1,
bevelEnabled: false
});
// Geometry doesn't do much on its own, we need to create a Mesh from it
let extrudedMesh = new THREE.Mesh(extrudedGeometry, new THREE.MeshPhongMaterial({
color: 0xff0000
}));
this.el.object3D.add(extrudedMesh);
let geometry = new THREE.ShapeGeometry(shape);
let material = new THREE.MeshBasicMaterial({
color: 0x00ff00
});
let mesh = new THREE.Mesh(geometry, material);
this.el.object3D.add(mesh);
}
});
Thank you.
Raycaster casts rays against the entity's mesh. You set it with setObject3D. Do:
let mesh = new THREE.Mesh(geometry, material);
this.el.setObject3D('mesh', mesh);