🎯 Objective

Allow users to select furniture from a catalog and place it virtually in their real-world living room using their phone camera. They can move, rotate, and scale furniture to see how it fits before buying.

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🔧 Tech Stack & Tools

• Framework: Unity 3D (cross-platform)
• AR SDK:
  • ARCore (Android)
  • ARKit (iOS)
  • Or use Vuforia (works for both iOS & Android)
• 3D Modeling: Blender, Sketchfab, TurboSquid (free/paid 3D assets)
• Languages: C# (Unity scripting)
• Optional Backend: Firebase (for saving user selections, catalogs)

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🏗️ Step-by-Step Development

1. Setup Environment

• Install Unity Hub + Unity 2022+ (with AR modules).
• Install ARCore XR Plugin (for Android) or ARKit XR Plugin (for iOS).

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2. Create AR Scene

• Open Unity → Create new 3D project.
• Import ARFoundation package (supports both ARCore + ARKit).
• Setup AR Session Origin and AR Camera in the scene.
• Add Plane Manager → Detects flat surfaces like floor or table.

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3. Furniture 3D Models

• Get optimized low-poly furniture models (chairs, sofas, tables, beds).
• Export models in .fbx or .glb.
• Import into Unity → place in a “Furniture Catalog” folder.

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4. Place Furniture in AR

• When the user taps on the detected surface, instantiate a 3D model at that position.
• Add gestures for:
  • Move (drag on screen)
  • Rotate (two-finger rotate)
  • Scale (pinch zoom)

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5. UI Development

• Add catalog menu (grid view of furniture thumbnails).
• On selection, spawn the chosen model in AR space.
• Buttons: Rotate Left, Rotate Right, Scale Up, Scale Down, Delete.

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6. Extra Features (Optional)

• Screenshot button → user can capture & share.
• Save favorite furniture items to wishlist.
• Link to eCommerce API (buy button).

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🧩 Sample Unity (C#) Script for Placing Furniture

using UnityEngine;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;
using System.Collections.Generic;

public class FurniturePlacer : MonoBehaviour
{
    public GameObject furniturePrefab;
    private ARRaycastManager raycastManager;
    private List<ARRaycastHit> hits = new List<ARRaycastHit>();

    void Start()
    {
        raycastManager = GetComponent<ARRaycastManager>();
    }

    void Update()
    {
        if (Input.touchCount > 0)
        {
            Touch touch = Input.GetTouch(0);

            if (raycastManager.Raycast(touch.position, hits, TrackableType.PlaneWithinPolygon))
            {
                Pose hitPose = hits[0].pose;
                Instantiate(furniturePrefab, hitPose.position, hitPose.rotation);
            }
        }
    }
}

👉 This script places the selected furniture model where the user taps on a detected surface.

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📦 Deployment

1. Build settings → Android/iOS.
2. Enable ARCore/ARKit support.
3. Test on a real device (not emulator).
4. Upload to Play Store / App Store.

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✅ End Result: A mobile app where users can scan their room, tap the floor, and drop virtual furniture in real-time to preview how it looks.

Let’s design the UI/UX flow (wireframe) for your AR Furniture Placement App.

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🖼️ Wireframe & UI Flow

1. Splash Screen

• App logo + tagline (e.g., “See it before you buy it”).
• Quick loading animation.

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2. Home Screen

• Top Navigation Bar → App name/logo.
• Buttons / Tabs:
  • 🛋️ Catalog (browse furniture)
  • ⭐ Wishlist (saved items)
  • ⚙️ Settings

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3. Furniture Catalog Screen

• Grid/List view of furniture items (thumbnails + name + price).
• Filters: Category (Sofa, Bed, Table, Chair).
• Search bar 🔍 for quick item lookup.
• Tap item → Opens AR View.

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4. AR View Screen (Main Feature)

This is where the magic happens ✨

Layout:

• Camera Feed → Live view of user’s room.
• AR Plane Detection Overlay → Slight grid to show detected surfaces (floor, table).
• Floating Action Controls (Bottom of Screen):
  • 📥 Place Item (tap surface to drop selected furniture).
  • 🔄 Rotate Left / Right.
  • ↔️ Scale Up / Down.
  • ❌ Remove Object.
• Top-Right Corner:
  • 📷 Screenshot button.
  • 🛒 Buy Now (redirect to eCommerce site or checkout).

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5. Wishlist / Saved Items

• List of user’s favorited furniture.
• Option to preview again in AR.

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6. Settings

• Toggle for measurement units (cm/inch).
• Help & Tutorial (how to use AR).
• App version, contact support.

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🎨 Visual Concept (Simple Wireframe Sketch)

-------------------------------------------------
| [App Logo]                              [⚙️] |
-------------------------------------------------
|             FURNITURE CATALOG                  |
|   [ Sofa ]   [ Chair ]   [ Table ]   [ Bed ]   |
|   [ img ]    [ img ]    [ img ]    [ img ]     |
|   Price      Price      Price      Price       |
-------------------------------------------------
| [🔍 Search...]                                |
-------------------------------------------------

AR VIEW SCREEN:
-------------------------------------------------
| [📷]                          [🛒 Buy]       |
-------------------------------------------------
|    CAMERA FEED (Room) + AR plane grid          |
|                                                |
|   [3D Furniture appears here]                  |
-------------------------------------------------
| [📥 Place] [🔄 Rotate] [↔️ Scale] [❌ Delete] |
-------------------------------------------------

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🎯 User Flow Summary

1. Open App → See Catalog.
2. Select Furniture → Camera opens with AR view.
3. Scan room → Tap surface → Place furniture.
4. Rotate, scale, and adjust position.
5. Take screenshot OR Buy Now.
6. Save item in wishlist for later.