Currently, I have implemented a double click function that allows the user to double click on a car model, displaying which objects have been intersected such as wipers, grille, and tires. These intersections are listed along with the number of items the double click has intersected with.
Now, I am attempting to enhance this functionality so that when a specific part of the car, like the tires, is clicked on, a paragraph with relevant information about the tires is displayed. I understand that this involves checking the name of the intersecting object and displaying the corresponding text if it intersects, but every time I attempt to make modifications, the existing function breaks, rendering it non-functional.
While I am not an expert in JavaScript or Three.js, I am finding it challenging to advance the functionality of this function.
Any suggestions on how to achieve this? I have included the complete double click function below, with the focus on the part where it checks for intersections near the bottom, that requires alterations.
// On Mouse double click event function
function onDoubleClick(event) {
// Set the mouse down flag to false
mouseDown = false;
// Canvas x (left) and y (top) position
var canvasLeft = 0;
var canvasTop = 0;
// "event.clientX" is the mouse x position. "event.clientY" is the mouse y position
var tempX = event.clientX - canvasLeft;
var tempY = event.clientY - canvasTop;
// Create a normalised vector in 2d space
var vector = new THREE.Vector3((tempX / window.innerWidth) * 2 - 1, - (tempY / innerHeight) * 2 + 1, 0.5);
// Unproject a 2D point into the 3D word
// Use the camera projection matrix to transform the vector to the 3D world space
vector.unproject(camera);
// Send a ray in the direction the user has clicked from the cameras position
var raycaster = new THREE.Raycaster(camera.position, vector.sub(camera.position).normalize());
// Check if the ray has intersected with any objects and get intersections
var intersects = raycaster.intersectObjects(objects, true);
// Check if intersected with objects
if (intersects.length > 0) {
var tempStr = "Number of items: " + intersects.length + " ";
// List the items that were hit
for(var i=0; i < intersects.length; i++){
if(intersects[i].object.name != ""){
// The mesh name set above
tempStr += " | Name: " + intersects[i].object.name;
} else {
// The names inside the model
tempStr += " | Name: " + intersects[i].object.parent.name;
}
}
//Debug information
document.getElementById("debugInfo").innerHTML = tempStr + ".<br>";
//END
}
}
EDIT: This is the entire code for the javascript file, as altering elements of the double click function seems to stop the page from loading.