Technology:
REALITYKIT
Category:
Metaverse
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Creating Immersive AR Experiences with RealityKit
Creating Immersive AR Experiences with RealityKitWhat We Will BuildWe'll create an AR scene where materials on a Sphere and a Cube change in real-time as the user moves around. By detecting the user's position and orientation relative to the objects,We can generate a dynamic, engaging AR experience tracking how the user is positioned relative to objects.Key ConceptsRealityKit: Apple's highK-performance framework for 3D AR experiences.ARKit: Controls AR sessions and position tracking in the environment of AR.User Position Tracking: We can alter the textures and materials using this system, depending on the user's position related to objects.Step 1: Setting Up the Basic AR Scene with RealityKitTo get started, we'll create a RealityKit scene with ARKit to build an AR session.Import RealityKit and ARKit in your project.Create anARView, the main view for displaying RealityKit content.import RealityKitimport ARKitlet arView = ARView(frame: .zero)arView.automaticallyConfigureSession = trueThis basic AR setup creates a full-screen view that automatically manages the AR session.Step 2: Adding Objects to the SceneNext we are going to add a Sphere and a Cube to our RealityKit scene.// Create a Sphere and Cube entitylet sphere = ModelEntity(mesh: .generateSphere(radius: 0.1))let cube = ModelEntity(mesh: .generateBox(size: [0.1, 0.1, 0.1]))// Position them in the AR scenesphere.position = SIMD3(0, 0, -0.5)cube.position = SIMD3(0.3, 0, -0.5)// Add entities to the ARViewlet anchor = AnchorEntity()anchor.addChild(sphere)anchor.addChild(cube)arView.scene.anchors.append(anchor)Here, we position the Sphere and Cube slightly apart so the user can see both objects clearly.Step 3: Tracking the User's PositionTo make the experience dynamic, we have to track how the user is positioned relative to the objects. We are going to use ARKit to get the user position and orientation.func getUserPosition() -> SIMD3<Float>? {guard let cameraTransform = arView.session.currentFrame?.camera.transform else { return nil }return cameraTransform.columns.3.xyz}This is extracting the user's current position in AR space and can be called periodically for updating the user's location.Step 4: Changing Materials Based on User PositionNow we will establish the logic to update the materials of the Sphere and the Cube depending upon the orientation of the user with respect to these objects. We determine the angle between the position of the user and the position of the Sphere.func updateMaterialBasedOnUserPosition() {guard let userPosition = getUserPosition() else { return }let directionToUser = userPosition - sphere.positionlet angle = atan2(directionToUser.x, directionToUser.z)let degreeAngle = radiansToDegrees(angle)var imageName: Stringswitch degreeAngle {case 45..<135:imageName = "Texture1"case -135..<(-45):imageName = "Texture2"case -45..<45:imageName = "Texture3"default:imageName = "Texture4"}applyTexture(named: imageName, to: sphere)applyTexture(named: imageName, to: cube)}This script now scans the user's position and changes with the texture on both the Sphere and the Cube according to which direction the user is facing.Step 5: Applying Textures to ModelsTo apply the textures, we'll create a function that loads the texture and updates the material on our objects.func applyTexture(named imageName: String, to entity: ModelEntity) {if let texture = try? TextureResource.load(named: imageName) {var material = SimpleMaterial()material.color = .init(tint: .white.withAlphaComponent(0.7), texture: .init(texture))material.metallic = 0.8material.roughness = 0.2entity.model?.materials = [material]}}TheapplyTexture function loads the texture from the assets and applies it to the entity, creating a reflective, slightly metallic material with the new texture.Step 6: Continuous Position-Based UpdatesWe subscribe to the SceneEvents.Update event at the end to keep polling the user position and update material in real time.arView.scene.subscribe(to: SceneEvents.Update.self) { _ inself.updateMaterialBasedOnUserPosition()}.store(in: &cancellables)The view of the user is now being constantly tracked so that the new materials are applied because the user will move around to create this AR experience interactively.ConclusionAn augmented reality environment was created using RealityKit and ARKit, where the materials of the objects dynamically change position and appearance depending on the user's movement and position. This kind of interaction contributes to more fun and immersive AR experiences and can be generalized into more complex applications, including educational tools and interactive showcases.Did this put new fun into working with RealityKit and ARKit? Though it is a fast approach, it paves the way for building sophisticated and interactive AR environments-sometimes fun, sometimes really lifelike-with enhancement of visual fidelity from app-based implementation of real-life interactions.
Saurabh Singh
14 Nov 2024
AR Experiences in SwiftUI with RealityKit & Vision Pro
Creating Immersive AR Experiences with SwiftUI and RealityKit:A Step-by-Step GuideWhat We Will BuildIn this tutorial, we'll focus on creating a scene where the materials of objects in the AR environment change dynamically based on the user's position relative to them. Specifically, we will manipulate a Sphere and a Cube. As the user moves around the scene, we will change the textures applied to these models based on their orientation to the user.Key ConceptsRealityKit: Apple's framework for creating 3D AR experiences.Vision Pro: Apple's spatial computing platform for detecting the user's position and movement.SwiftUI: The declarative UI framework used for building user interfaces across all Apple platforms.Step 1: Setting Up the Basic AR Scene with RealityKitIn this project, we create a view calledImmersiveView, which is powered by RealityKit'sRealityView. This view contains our AR content, which is added dynamically when the app runs.RealityView { content inTask { await visionProPose.runArSession() }if let immersiveContentEntity = try? await Entity(named: "Immersive", in: realityKitContentBundle) {// Add entities like Sphere and Cube to the content...}}Step 2: Managing User Position with Vision ProWe use a VisionProPosition object to track the user's position in the AR world. The user's position is updated every 0.3 seconds using a Timer.@State private var userPosition: SIMD3<Float>? = nilTimer.scheduledTimer(withTimeInterval: 0.3, repeats: true) { _ inTask { @MainActor inuserPosition = await visionProPose.getTransform()?.translation}}This allows us to dynamically calculate the user's movement and update the AR scene accordingly.Step 3: Dynamic Material Updates Based on User's PositionThe core of this project is dynamically changing the materials applied to the Sphere and Cube. By calculating the angle between the user's position and the Sphere, we determine which side of the Sphere the user is located on. Based on the angle, we will update the textures applied to both the Sphere and the Cube.let directionToUser = userPosition - spherePositionlet angle = atan2(directionToUser.x, directionToUser.z)let degreeAngle = radiansToDegrees(angle)switch degreeAngle {case 45..<135:imageName = "Image1"case -135..<(-45):imageName = "Image2"case -45..<45:imageName = "Image3"default:imageName = "Image4"}TheimageName determines which texture to apply to both objects, based on the direction the user is facing.Step 4: Applying Textures to ModelsNow that we have theimageName based on the user's position, we use this information to load and apply different textures to the Sphere and Cube. The textures are loaded usingTextureResource.load(named:), and the materials are updated accordingly.sphere.model?.materials = [materialForSphere(named: imageName)]cube.model?.materials = [materialForPlane(named: imageName)]Here's how we define the material creation methods for both objects:func materialForSphere(named imageName: String) -> SimpleMaterial {if let texture = try? TextureResource.load(named: imageName) {var glassMaterial = SimpleMaterial()glassMaterial.color = .init(tint: .white.withAlphaComponent(0.6), texture: .init(texture))glassMaterial.metallic = 0.9glassMaterial.roughness = 0.1return glassMaterial}return SimpleMaterial()}ThismaterialForSphere function loads the texture and creates a translucent material with a glossy finish for the Sphere, while thematerialForPlane function does the same for the Cube.Step 5: Putting It All TogetherNow that we've established our basic setup, the AR scene will continuously update based on the user's position relative to the Sphere. As the user moves, the material on both objects will change, creating an interactive experience.content.subscribe(to: SceneEvents.Update.self) { _ inupdateMaterialsIfNeeded(for: flattenedCube, sphere: sphere)}The update function checks if the user's position has changed and updates the materials of the Sphere and Cube accordingly.By combining RealityKit, Vision Pro, and SwiftUI, we can create immersive AR experiences that are dynamic and interactive. The ability to update materials based on real-time user interactions allows for highly engaging environments.In this example, we've used basic geometry and dynamic material updates, but there are endless possibilities for creating more complex interactions in AR. Whether you're building educational tools, gaming experiences, or interactive showcases, the concepts discussed here provide a foundation for more sophisticated AR development on Apple platforms.
Technology:
VISIONOS
,
SWIFTUI
more
Category:
Metaverse
Neha N
07 Nov 2024
Why Vision Pro Apps Can be a Game Changer for Your Business
Building on the AR/VR revolution's ability to reshape how we interact with technology, Apple Vision Pro is the latest breakthrough designed to revolutionize not just our digital experiences but the way we operate in all areas of life and business. With cutting edge technology and features, it offers immense potential for redefining interaction, productivity and engagement across industries.Whether you're in healthcare or a budding architect,Vision Pro apps gives you the upper hand in transforming complex scenarios into powerful solutions, helping you tackle real-life challenges. From performing advanced surgeries to walking through 3D visualizations of your designs, building a Vision Pro app empowers both you and your users to create and shape immersive experiences that drive success in a realistic and engaging way.As a relatively new technology, Vision Pro is set to expand its capabilities with the release of VisionOS 2, offering a more seamless, intuitive user experience. By adopting the technology early, you can position your brand as a market leader, deepen audience engagement, capture new markets and transform your operations for enhanced performance and functionality. In this article, we will discuss the benefits of building yourVision Pro appand key essentials to help you maximize its value.How Vision Pro Apps Can Take Your Business to the Next Level1. Get your customers to experience your products before they buy themOne of the major reasons holding back customers from buying products online is that the photos available on websites do not effectively overcome their uncertainty about whether the product will actually meet their requirements after purchase.Whether it's finding the right size for a dress or piece of furniture, Vision Pro apps can eliminate the guesswork for customers by letting them experience your products in their environment, significantly boosting their buying confidence and streamlining your sales process.For example, if you're looking to sell a sofa online, it is important to consider how to build the trust of potential buyers so that they feel confident in purchasing the product. With the app, you can let the user experience the sofa within their room and see how much space it takes, how the fabric appears against their room settings, flip between various colors to see which looks the best and more. This way, you get more satisfied customers, lower inventory management costs and higher profit margins.2. Seize first-mover advantage and lead through innovationVision Pro is relatively new to the market, and adopting it early can help you differentiate from competitors as an innovator and forward-thinking brand by offering immersive, next-level experiences to your customers.By being an early adopter, you get more time to perfect your approach and efficiently adapt to new releases and updates to provide your users with a more refined and cutting-edge experience. Such products often attract customers who are willing to pay a premium for a distinguished offering,giving you the opportunity to capture new markets.3. Enhanced Accessibility & InclusivityImagine if your app on the VR headset was not bound by language or procedures, and your users could say out aloud what they wanted and it would be presented to them in the exact way. With Vision Pro apps this is actually possible, as it offers an unparalleled level of accessibility and inclusivity, ensuring that all users, regardless of ability or background, can fully engage with your products and services.These apps offer visual and auditory assistance like voice recognition and gesture-based controls which makes them accessible to a wider audience including users with physical disabilities or those who may struggle with traditional input methods like mouse or keyboard. Spatial computing allows for the interface to adjust and adapt according to the users' requirements, providing them with a seamless and intuitive experience.4. Greater Flexibility & ScalabilityPowered by spatial computing and customizable AR, Vision Pro apps can provide highly personalized experiences and diverse applications whether it's customizing the UI, creating user journeys that evolve with customer needs, or building industry-specific applications.Moreover, as visionOS shares its DNA with iOS and PadOS, you can leverage your existing codebase to build your Vision Pro app on existing foundations, allowing you to scale your offerings with growing requirements and technological advancements. It can further be integrated with existing business infrastructure, including ERP systems, CRM tools, e-commerce platforms etc to help you enhance the overall functionality of your app.5. Drives SustainabilityTo be a responsible participant in a sustainability-driven world, it is essential to follow business practices that do not harm the environment and encourage judicious resource utilization.Through Vision Pro devices and applications, you can significantly reduce your material consumption by developing AR-based models of your products which customers can try from anywhere in the world. Not only would you require fewer resources to produce samples and products, but you will also save on logistical and inventory costs.Additionally, these apps allow you to collaborate and hold meetings, discussions and events virtually, helping you save fuel and costs of transportation and ultimately minimizing your carbon footprint.6. Easier Training & OnboardingHands-on learning and practical knowledge oftentimes have proven to be more invaluable than traditional forms of training, especially when it comes to training employees for unpredictable, high risk situations. Vision pro apps can help them prepare for versatile scenarios and specific applications by training in spatial computing environments that serve as a replica of difficult situations, so that when the actual complexity arises, your employees are prepared and ready to handle it.It substantially helps in reducing training and onboarding costs by negating the requirement of using expensive infrastructure for teaching and training. Also, traditional training can often be time and resource bound which might not be sufficient for the employee to learn properly. But with these apps, the learner can follow the training module as per their speed however many times they want, and modify the language and settings according to what feels right for them.Technical Essentials for Building a High-Performance Vision Pro AppTo develop your own vision pro app, it is crucial that you're familiar with the right set of frameworks, features and methodologies that can help you ensure high performance, scalability and a seamless experience. Below are some of the key technical essentials that you should incorporate into your app to ensure superior functionality, performance and security for your users.1. Spatial Mapping & Environmental Understanding:Vision Pro's advanced spatial computing creates real-time, accurate maps of the user's physical environment. This feature is essential for placing virtual objects in the right context and enhancing immersion. It's particularly valuable for industries like retail, architecture, or healthcare where spatial precision matters.2. AI-Powered Contextual Experiences: Integrating AI enables your app to dynamically adapt to user behavior, preferences, and surroundings. AI-powered personalization delivers more engaging and tailored experiences, driving deeper customer interaction. Whether in retail, training, or gaming, this feature enhances the overall user experience.3. Multi-User Collaboration in Real Time:Allowing multiple users to engage in the same AR space simultaneously is crucial for collaborative tasks. From remote design sessions to virtual training or multiplayer gaming, this capability fosters teamwork and social interaction. It's a must-have for industries focused on shared, immersive experiences.4. Optimized Visual Rendering for Immersive AR: High-performance, realistic visual rendering ensures a seamless and immersive user experience. Optimizing graphics for Vision Pro's capabilities allows for stunning visuals while maintaining smooth operation. This is vital for product visualization, virtual tours, or any 3D-heavy content.5. Enhanced Data Privacy & Compliance:Protecting user data with strong encryption and adhering to privacy laws like GDPR is non-negotiable. Secure data handling builds trust and ensures your app can safely manage sensitive information. This is especially important in finance, healthcare, and any app handling personal data.6. AR-Specific User Interface (UI) & User Experience (UX) Design:A well-crafted AR-specific UI/UX is critical for easy navigation and interaction within the virtual world. Gesture-based controls and spatial menus designed for AR make your app intuitive and user-friendly. This is key to ensuring a smooth and engaging user experience.7. Cloud Integration for Real-Time Data Syncing: Cloud integration allows your app to handle real-time data syncing and large-scale content storage. It enables continuous updates, multiplayer support, and persistent AR experiences across different devices. This feature is essential for scalability and smooth app performance.Final ThoughtsVision Prorepresents a monumental leap in how businesses can harness the power of augmented and virtual reality to redefine their industry presence. By embracing this innovative platform early, businesses can not only offer cutting-edge, immersive experiences but also position themselves as pioneers in a rapidly evolving digital landscape. Whether improving customer engagement, optimizing operations, or capturing new markets, the potential benefits of building a Vision Pro app are vast. Armed with the right technical essentials, your app can become a transformative tool that unlocks new growth, enhances performance, and drives long-term success.Why Choose Oodles as Your Technical Partner for Building Vision Pro AppWith our expertise in AR/VR development, we deliver customized, cutting-edge solutions that enhance user engagement and streamline operations. Our team ensures a seamless end-to-end process, from ideation to deployment, while focusing on scalability and innovation. We tailor the app to your specific industry needs, ensuring it drives real results. With ongoing support and a commitment to leveraging the latest technology,Oodles is your trusted partner in creating a high-performance Vision Pro app that sets your business apart.
Technology:
VISIONOS
,
SWIFTUI
more
Category:
Metaverse
Arpita Pal
24 Oct 2024
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