Got it, let's tackle your missing features and WordPress integration step by step. You've already nailed the 3D object creation, rotation, links, and basic animations—great start! Here's how to add the carousel navigation and hover text, plus get this into your WordPress homepage.

The core idea here is to track the active 3D object and smoothly transition between items using buttons (or keyboard controls) by adjusting their 3D positions/rotations. Below are examples for both CSS-based 3D and Three.js/WebGL setups:

For CSS 3D Carousels #

First, update your HTML structure to include navigation buttons and wrap items in a 3D container:

<div class="3d-carousel-wrapper">
  <div class="3d-carousel">
    <div class="carousel-item active">
      <!-- Your 3D object + link here -->
    </div>
    <div class="carousel-item">
      <!-- Next 3D object -->
    </div>
    <div class="carousel-item">
      <!-- Third 3D object -->
    </div>
  </div>
  <button class="carousel-nav carousel-prev">←</button>
  <button class="carousel-nav carousel-next">→</button>
</div>

Add CSS to define the 3D space and item states:

.3d-carousel-wrapper {
  position: relative;
  width: 800px;
  height: 500px;
  margin: 0 auto;
  perspective: 1200px; /* Creates the 3D depth effect */
}

.3d-carousel {
  position: absolute;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}

.carousel-item {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0.6;
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-item.active {
  opacity: 1;
  transform: translateZ(250px); /* Brings active item to the front */
}

.carousel-item.prev {
  transform: rotateY(45deg) translateZ(-180px); /* Shifts previous item to left/back */
}

.carousel-item.next {
  transform: rotateY(-45deg) translateZ(-180px); /* Shifts next item to right/back */
}

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 12px 18px;
  font-size: 24px;
  border: none;
  background: rgba(0,0,0,0.7);
  color: white;
  cursor: pointer;
  z-index: 10;
}

.carousel-prev { left: 20px; }
.carousel-next { right: 20px; }

Add JavaScript to handle navigation logic:

const carousel = document.querySelector('.3d-carousel');
const items = Array.from(carousel.querySelectorAll('.carousel-item'));
const prevBtn = document.querySelector('.carousel-prev');
const nextBtn = document.querySelector('.carousel-next');
let currentIndex = 0;

function updateCarouselState() {
  items.forEach((item, index) => {
    // Reset all classes first
    item.classList.remove('active', 'prev', 'next');
    
    if (index === currentIndex) {
      item.classList.add('active');
    } else if (index === (currentIndex - 1 + items.length) % items.length) {
      item.classList.add('prev');
    } else if (index === (currentIndex + 1) % items.length) {
      item.classList.add('next');
    }
    // Hide items further away (optional)
    else {
      item.style.opacity = 0.3;
    }
  });
}

prevBtn.addEventListener('click', () => {
  currentIndex = (currentIndex - 1 + items.length) % items.length;
  updateCarouselState();
});

nextBtn.addEventListener('click', () => {
  currentIndex = (currentIndex + 1) % items.length;
  updateCarouselState();
});

// Initialize the carousel on load
updateCarouselState();

For Three.js/WebGL Carousels #

If you're using Three.js, use raycasting and tweening to transition between objects:

import * as THREE from 'three';
import { TweenMax } from 'gsap'; // For smooth animations

let currentModelIndex = 0;
const models = []; // Store your 3D models here
const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);

function switchModel(direction) {
  // Hide current model
  TweenMax.to(models[currentModelIndex].position, 0.7, {
    z: -200,
    opacity: 0.5,
    ease: Power2.easeInOut
  });
  
  // Update index
  currentModelIndex = direction === 'next' 
    ? (currentModelIndex + 1) % models.length 
    : (currentModelIndex - 1 + models.length) % models.length;
  
  // Show new active model
  TweenMax.to(models[currentModelIndex].position, 0.7, {
    z: 0,
    opacity: 1,
    ease: Power2.easeInOut
  });
}

// Attach click handlers to your navigation buttons
document.querySelector('.carousel-prev').addEventListener('click', () => switchModel('prev'));
document.querySelector('.carousel-next').addEventListener('click', () => switchModel('next'));

Choose the method that matches your 3D implementation:

For CSS 3D Objects #

Add a hidden text container inside each carousel item:

<div class="carousel-item active">
  <div class="3d-object">
    <!-- Your 3D content/link -->
  </div>
  <div class="hover-text">Your Item Description Here</div>
</div>

Style it to appear on hover:

.carousel-item {
  position: relative;
  overflow: hidden;
}

.hover-text {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 20px;
  background: rgba(0,0,0,0.8);
  color: white;
  font-size: 16px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 5;
}

.carousel-item:hover .hover-text {
  opacity: 1;
}

For Three.js/WebGL Objects #

Use raycasting to detect mouse hover on models and show text:

<!-- Add this to your HTML -->
<div id="hover-text" style="position: fixed; display: none; background: rgba(0,0,0,0.8); color: white; padding: 8px 12px; border-radius: 4px; pointer-events: none;"></div>

Add JavaScript to handle hover detection:

const raycaster = new THREE.Raycaster();
const mouse = new THREE.Vector2();
const hoverTextEl = document.getElementById('hover-text');

window.addEventListener('mousemove', (event) => {
  // Convert mouse position to Three.js coordinate system
  mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
  mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
  
  // Check for intersections with models
  raycaster.setFromCamera(mouse, camera);
  const intersects = raycaster.intersectObjects(models);
  
  if (intersects.length > 0) {
    // Assume each model has a 'text' property in userData
    hoverTextEl.textContent = intersects[0].object.userData.text;
    hoverTextEl.style.display = 'block';
    // Position text near mouse
    hoverTextEl.style.left = `${event.clientX + 15}px`;
    hoverTextEl.style.top = `${event.clientY + 15}px`;
  } else {
    hoverTextEl.style.display = 'none';
  }
});

To replace the existing hero image with your 3D carousel:

1. Create a Custom Component Template
   In your WordPress theme folder, create a new file called template-3d-carousel.php and paste your full carousel HTML, CSS (inline or linked), and JavaScript.

2. Enqueue Assets (Recommended)
   Add this to your theme's functions.php file to load your carousel's CSS and JS properly:

   function enqueue_3d_carousel_assets() {
     // Enqueue CSS
     wp_enqueue_style('3d-carousel-styles', get_template_directory_uri() . '/css/3d-carousel.css', array(), '1.0');
     // Enqueue JS (add jQuery as dependency if needed)
     wp_enqueue_script('3d-carousel-script', get_template_directory_uri() . '/js/3d-carousel.js', array('jquery'), '1.0', true);
   }
   add_action('wp_enqueue_scripts', 'enqueue_3d_carousel_assets');
   

3. Replace the Hero Image
   Open your homepage template (usually front-page.php or index.php). Find the code block that displays the current hero image (look for classes like hero-banner or home-slider), and replace it with:

   <?php get_template_part('template-3d-carousel'); ?>
   

4. Responsive Adjustments
   Add media queries to your carousel CSS to ensure it works on mobile:

   @media (max-width: 768px) {
     .3d-carousel-wrapper {
       width: 100%;
       height: 350px;
       perspective: 800px;
     }
     .carousel-item.active {
       transform: translateZ(150px);
     }
     .carousel-nav {
       padding: 8px 12px;
       font-size: 18px;
     }
   }
   

5. Test & Troubleshoot
   Refresh your WordPress homepage to check for conflicts with your theme's existing styles. Use browser dev tools to adjust CSS/JS if elements overlap or animations break.

内容的提问来源于stack exchange，提问作者hanan-mstudio