Sphere is a highly customizable 3D globe widget written using a custom RenderObject.
It positions child widgets on a virtual sphere using Fibonacci distribution and renders them with depth-based scaling, alpha, and hit-testing.

This widget works on all Flutter platforms, including web, mobile, and desktop.

🌀 Features

🌐 3D spherical layout using Fibonacci sphere algorithm
🎛️ External control for horizontal and vertical rotations
🖱️ Optional gesture-based interactive rotation
🔍 Depth-based scaling & alpha for realistic 3D effect
🖼️ Supports any Flutter widget as a sphere point (avatars, icons, etc.)
⚡ Efficient RenderObject implementation
🖱️ Fully functional hit testing (children are clickable)
🧱 No dependencies — pure Flutter

Sample Images

## 📦 Installation

Add the package to your pubspec.yaml:

dependencies:
  sphere: ^latest_version

Import:

import 'package:sphere/sphere.dart';

Sample Usages

⭐ Auto Rotate (All Axis)

Sphere.rotate(
  size: 300,
  alphaEnabled: false,
  children: List.generate(
    100,
    (i) => ClipOval(
      child: Image.network('https://i.pravatar.cc/30?u=$i'),
    ),
  ),
)

⭐ Auto Rotate X-Axis Only

Sphere.rotate(
  size: 300,
  alphaEnabled: false,
  isRotationX: true,
  isRotationY: false,
  children: List.generate(
    100,
    (i) => ClipOval(
      child: Image.network('https://i.pravatar.cc/30?u=$i'),
    ),
  ),
)

⭐ Auto Rotate Y-Axis Only

Sphere.rotate(
  size: 300,
  alphaEnabled: false,
  isRotationX: false,
  isRotationY: true,
  children: List.generate(
    100,
    (i) => ClipOval(
      child: Image.network('https://i.pravatar.cc/30?u=$i'),
    ),
  ),
),

⭐Gesture-Controlled Rotation

Sphere.gesture(
  size: 300,
  alphaEnabled: false,
  children: List.generate(
    100,
    (i) => ClipOval(
      child: Image.network('https://i.pravatar.cc/30?u=$i'),
    ),
  )
),

⭐Gesture Mode with Alpha (Depth Fade Enabled)

Sphere.gesture(
  size: 300,
  alphaEnabled: true,
  children: List.generate(
    100,
    (i) => ClipOval(
      child: Image.network('https://i.pravatar.cc/30?u=$i'),
    ),
  ),
)

❤️ Contributing

Feel free to open issues or submit PRs. Feedback and feature requests are welcome!

Sphere — 3D Rotating Globe Widget for Flutter