visionOS 27 RealityKit Gaussian Splatting

import SwiftUI
import RealityKit

struct GaussianSplatView: View {
    var body: some View {
        RealityView { content in
            // Load a Gaussian Splat asset exported from the RealityKit scanning pipeline
            // The asset is a USDZ containing GaussianSplatComponent data
            guard let splatEntity = try? await Entity(named: "PottedPlant", in: .main) else {
                return
            }

            // Configure the Gaussian Splat component for quality/performance balance
            var splatComponent = GaussianSplatComponent()
            splatComponent.maxSplats = 500_000
            splatComponent.sortingEnabled = true
            splatEntity.components.set(splatComponent)

            // Position the plant on a virtual surface at eye level
            splatEntity.position = SIMD3<Float>(0, -0.4, -0.8)
            splatEntity.scale = SIMD3<Float>(repeating: 0.5)

            content.add(splatEntity)
        } update: { content in
            // Optionally animate or update the splat entity at runtime
        }
        .immersiveContentBrightness(.automatic)
    }
}

struct GaussianSplatApp: App {
    var body: some Scene {
        ImmersiveSpace(id: "SplatSpace") {
            GaussianSplatView()
        }
        .immersionStyle(selection: .constant(.mixed), in: .mixed)
    }
}