Hi guys I have major problem please help me.
I have object and clicking on it I need to set new style,
I tried to set color by this approach:
if(intersects[0]){
for ( var i = 0; i < intersects.length; i++ ) {
intersects[0].object.material.color.setHex( 0xff0000 )
}
}
But unfortunatly main object gets color
If it’s a complex model (with more than one mesh etc.) you have to traverse it’s children and set color to every one of them.
model.traverse((child) => {
if (child.material) {
child.material.color.setHex(0xff0000);
}
});
Do you wanna color the whole model? Because when raycasting, its possible that you receive a child of your model in intersects. Then you would need to search for the parent container first.
// When loading your model, set a bool on the model container
loader.load('PATH', (model)=> {
model.userData.isContainer = true
})
// When searching, look for isContainer == true
// Recursive function that checks if is container else does the same for its parent and parents parent and so on
function getContainer(childObj) {
if(childObj.userData.isContainer == true) return childObj
if(childObj.parent != null) return getContainer(childObj.parent)
return null
}
// Get container by child
let container = getContainer(intersects[0].object])
// Go through all childs of container and color all
container.traverse((child) => {
if (child.material) {
child.material.color.setHex(0xff0000);
}
})Also You can see that I have all children.how Can I change only one children color?
Thanks a lot
I add more details , please hav a look
Yep - but it would be easier if you shown us your code for clicking.
Code, my man, not a screenshot of code :’) (can be just the part with raycasting and changing material color.)
import { GLTFLoader } from './jsm/loaders/GLTFLoader.js';
import { DRACOLoader } from './jsm/loaders/DRACOLoader.js';
import { OrbitControls } from './jsm/controls/OrbitControls.js';
var camera, scene, renderer;
let floorInfos = {
floor1: {
desc: `FLOOR 1 PLAN
Scale: 1/4 "= 1' or larger
Show each floor.
State square footage of residence, garage, decks covered & decks not covered.
Location of plumbing fixtures, appliances, fireplace, type and location of heating system.
Window size and type, floor size and type, door size and type, direction of door swing.`
},
floor2: {
desc: `FLOOR 2 PLAN
Scale: 2/3 "= 1' or larger
Show each floor.
In this new interface the experience is as follows: the user approaches
the mouse to any room, automatically a blinking message appears over the
room and it shows the information about required performance for the selected
room. When the mouse is removed from the room, the information disappears and information about
other rooms can be inquired by only approaching the mouse without clicking the room..`
},
floor3: {
desc: `FLOOR 3 PLAN
Scale: 3/4 "= 1' or larger
Show each floor.
The main advantage of this framework is that designers can
decide crucial aspects of the project (orientation, size, room distribution) using
real information from existing standards or norms in an integrated digital environment. .`
},
floor4: {
desc: `FLOOR 4 PLAN
Scale: 4/1 " = 1' or larger
Show each floor.
State square footage of residence, garage, decks covered & decks not covered.`
},
}
// Instantiate a loader
var loader = new GLTFLoader();
var renderer;
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );
let floor = document.getElementById("floor");
floor.style.display = 'none';
let model;
renderer = new THREE.WebGLRenderer( { alpha: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
var controls = new OrbitControls( camera, renderer.domElement );
controls.addEventListener( 'change', render );
controls.target.set( 0, 1.2, 2 );
// controls.minDistance = 100;
// controls.maxDistance = 10;
controls.update();
window.addEventListener( 'resize', onWindowResize, false );
function render() {
renderer.render( scene, camera );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
render();
}
//LIGHTING START
renderer.setClearColor(0xEEEEEE);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.shadowMapEnabled = true;
var ambientLight = new THREE.AmbientLight(0x0c0c0c);
scene.add(ambientLight);
var spotLight = new THREE.SpotLight(0xfffffffff);
spotLight.position.set(-40, 60, -10);
spotLight.castShadow = false;
scene.add(spotLight);
camera.position.x = -30;
camera.position.y = 40;
camera.position.z = 30;
camera.lookAt(scene.position);
//END
var dracoLoader = new DRACOLoader();
dracoLoader.setDecoderPath( '/examples/js/libs/draco/' );
loader.setDRACOLoader( dracoLoader );
var toIntersect = [];
// Load a glTF resource
loader.load(
'./files/test55.gltf',
function ( gltf ) {
console.log('model', gltf)
camera.position.z = 40;
scene.add( gltf.scene );
var t = gltf.scenes[0].children;
scene.traverse(function (m) {
if (m instanceof THREE.Mesh) {
toIntersect.push(m);
}
});
},
// called while loading is progressing
function ( xhr ) {
//console.log('done')
//console.log( ( xhr.loaded / xhr.total * 100 ) + '% loaded' );
},
// called when loading has errors
function ( error ) {
//console.log(error);
}
);
var raycaster, mouse = { x : 0, y : 0 };
raycaster = new THREE.Raycaster();
var mouse = new THREE.Vector2();
renderer.domElement.addEventListener( 'click', raycast, false );
function raycast ( e ) {
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
raycaster.setFromCamera( mouse, camera );
// calculate objects intersecting the picking ray
var intersects = raycaster.intersectObjects( scene.children, true );
console.log('intersects',intersects)
if(intersects && intersects[0]) {
floor.style.display = 'inline-block';
// console.log(intersects[0].object.parent.userData)
let floorName = intersects[0].object.parent.userData.name;
if(floorName === 'floor_1'){
console.log('jhvju')
floor.innerHTML = floorInfos.floor1.desc;
} else if (floorName === 'floor_2'){
floor.innerHTML = floorInfos.floor2.desc;
}
else if (floorName === 'floor_3'){
floor.innerHTML = floorInfos.floor3.desc;
}
else if (floorName === 'floor_4'){
floor.innerHTML = floorInfos.floor4.desc;
}
} else{
floor.style.display = 'none';
}
if(intersects[0]){
for ( var i = 0; i < intersects.length; i++ ) {
intersects[0].object.material.color.setHex( 0xff0000 )
}
}
renderer.render( scene, camera );
}
setTimeout(()=> {
render();
}, 1000)
</script>
test55.gltf (80.6 KB)
Here is file 
for loop):function raycast ( e ) {
mouse.x = ( event.clientX / window.innerWidth ) * 2 - 1;
mouse.y = - ( event.clientY / window.innerHeight ) * 2 + 1;
raycaster.setFromCamera( mouse, camera );
var intersects = raycaster.intersectObjects( scene.children, true );
// ...
if(intersects[0]){
intersects[0].object.material.color.setHex( 0xff0000 );
}
renderer.render( scene, camera ); // Note: No need to call that here
}
// ...
var raycaster, mouse = { x : 0, y : 0 };
raycaster = new THREE.Raycaster();
var mouse = new THREE.Vector2();
// (1) Save global material
var sharedMaterial;
renderer.domElement.addEventListener( 'click', raycast, false );
function raycast ( e ) {
// ...
if(intersects[0] && intersects[0].object.material){
if (!sharedMaterial) {
// (2) If sharedMaterial wasn't set, set it now
sharedMaterial = intersects[0].object.material;
}
if (intersects[0].object.material === sharedMaterial) {
// (3) If child uses the global material, clone it first
intersects[0].object.material = intersects[0].object.material.clone();
}
// (4) Change the color on the cloned material, leaving global one intact
intersects[0].object.material.color.setHex(0xff0000);
}
}
It works thank you bro
What can I do for you ?
I am from Armenia , you can be sure you have one friend here
hello there, I am also facing a similar issue; this fix helps greatly. But how can reverse to the old color ? It would be a great help