3D animation background using Vanta.js

3D animation background using Vanta.js

It looks like you're trying to integrate a Vanta.js animation effect (specifically, the birds effect) into your web page using Three.js and Vanta.js libraries. The code you've shared is mostly correct but needs a few improvements for proper setup. Below is the fixed and improved version of your code, including a better structure and explanation:

Complete Code for Vanta.js Bird Animation

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Vanta.js Bird Animation</title>
    <link rel="stylesheet" href="style.css">
    <style>
        /* Make sure the body and main container cover the full page */
        body, html {
            margin: 0;
            padding: 0;
            height: 100%;
            overflow: hidden;
        }
       
        /* Set a container element to hold the animation */
        #main {
            width: 100%;
            height: 100%;
        }
    </style>
</head>
<body>
    <!-- Main container where the Vanta.js animation will render -->
    <div id="main"></div>

    <!-- Include Three.js for Vanta.js dependency -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r121/three.min.js"></script>

    <!-- Include Vanta.js for the birds effect -->
    <script src="https://cdn.jsdelivr.net/npm/vanta@latest/dist/vanta.birds.min.js"></script>

    <script>
        // Initialize Vanta Birds effect on the 'main' element
        VANTA.BIRDS({
            el: "#main",                  // The element where the animation will render
            mouseControls: true,          // Enable mouse controls
            touchControls: true,          // Enable touch controls for mobile
            gyroControls: false,          // Disable gyro controls for mobile
            minHeight: 200.00,            // Minimum height of the element
            minWidth: 200.00,             // Minimum width of the element
            scale: 1.00,                  // Scaling factor for the effect
            scaleMobile: 1.00             // Scaling factor for mobile devices
        });

    </script>
</body>
</html>

Explanation of Key Changes:

  1. CSS for Full-Screen Effect:

    • The body, html styles ensure that the page covers the full viewport with no margins and no overflow.
    • The #main div is set to take up the full width and height of the viewport.

  2. Vanta.js and Three.js Setup:

    • Three.js is a dependency for Vanta.js. It's included first in the <script> tag.
    • Then, Vanta.js is loaded from the CDN (vanta.birds.min.js) to activate the bird animation effect.

  3. Vanta.BIRDS() Initialization:

    • The VANTA.BIRDS() function initializes the bird animation effect on the element with the id #main.
    • Several customizable options are passed, such as:
      • mouseControls: Enables mouse interaction with the animation.
      • touchControls: Enables touch interaction for mobile devices.
      • gyroControls: Disables gyroscopic control (you can enable it for a 3D tilt effect on mobile devices).
      • minHeight and minWidth: These properties ensure that the animation area is large enough to work correctly.
      • scale and scaleMobile: Control the scaling of the animation on desktop and mobile.

  4. Responsiveness:

    • The CSS ensures that the animation will fill the screen no matter the device's size.

Additional Notes:

  • If you want to use other Vanta.js effects (e.g., waves, clouds, or others), you can replace the vanta.birds.min.js script with another Vanta effect script. Check Vanta.js documentation for more effect options.
  • You can adjust the minHeight, minWidth, scale, and scaleMobile properties to fine-tune the responsiveness and appearance of the animation.

Now, when you open this page, you'll see the Vanta.js Birds animation effect running in the background, with full-screen coverage and responsive behavior for mobile devices.

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