How to Use 3D Models in Flutter

In this blog, we will learn how to use 3D Models in Flutter.

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Introduction:-

Three-dimensional (3D) models have three dimensions: depth, breadth, and length. They are used in many ways to improve user experience.

A 3D model is a digital representation in three dimensions of a necessary object, which can be fictional or actual. The creation of 3D models takes place with the help of special software for digital model.

A Flutter widget for displaying interactive 3D models in glTF and GLB formats. The widget utilizes Google’s model-viewer web component within a WebView for smooth rendering.

Implementation:-

Step 1: Add the dependencies

dependencies:

flutter:

sdk: flutter

model_viewer_plus: ^1.5.0

Now, run the command “flutter pub get” to add the dependencies.

To include the required package in your class, please add it using the appropriate method.

1	import 'package:model_viewer_plus/model_viewer_plus.dart';

Step 1: AndroidManifiest.xml (Android 9+ only)

To use this widget on an Android device running version 9 or higher, your app must be permitted to establish an HTTP connection to http://localhost:XXXXX.

It’s worth noting that Android 9 (API level 28) has changed the default setting for android:usesCleartextTraffic from true to false.

To ensure proper functioning of your app, you must modify its AndroidManifest.xml file as shown below.

<application android:name="${applicationName}"

android:icon="@mipmap/ic_launcher"

android:label="example"

android:usesCleartextTraffic="true">

Step 3: app/build.gradle (Android only)

Change minSdkVersion to 21.

defaultConfig {

minSdkVersion 21

}

Step 4:Info.plist (iOS only)

To enable the widget on iOS, add a boolean property named “io.flutter.embedded_views_preview” to your app’s ios/Runner/Info.plist file with the value “YES”.

1 2	<key>io.flutter.embedded_views_preview</key> <true/>

Step 5: Add the assets

assets:
– lib/assets/Astronaut.glb

Step 6:How to use ModelViewer Widget

ModelViewer(

backgroundColor: Color.fromARGB(0xFF, 0xEE, 0xEE, 0xEE),

src: 'lib/assets/Astronaut.glb',

alt: 'A 3D model of an astronaut',

ar: true,

autoRotate: true,

disableZoom: true,

autoPlay: true,

cameraControls: true,

src: The 3D model parameter ‘URL’ or ‘path’ is required. Only glTF/GLB models are supported.
alt: Used to describe the model to viewers
autoPlay: An animation will automatically begin to play
autoRotate: Enables the auto-rotation of the model.
cameraControls: Enables controls via mouse/touch.

Completed Code:-

import 'package:flutter/material.dart';

import 'package:model_viewer_plus/model_viewer_plus.dart';

class MyHomePage extends StatefulWidget {

const MyHomePage({super.key});

@override

State<MyHomePage> createState() => _MyHomePageState();

}

class _MyHomePageState extends State<MyHomePage> {

@override

Widget build(BuildContext context) {

return Scaffold(

appBar: AppBar(title: const Text('Model Viewer')),

body: const ModelViewer(