Quantum-Spatial Design System

For 15 years, I've designed interfaces for screens—flat, rectangular, predictable. Then Apple Vision Pro arrived, and suddenly the canvas became infinite spatial dimensions.

But here's what I learned immediately: spatial computing isn't just "3D UI design." It's a fundamentally different way of thinking about how humans interact with information. And after nearly a decade of analytics sharing with Apple's consensual learning program, I had the data to prove it.

The Quantum-Spatial Design System is the result of that learning—a sophisticated, mathematically-grounded framework that creates reliable, accessible, and genuinely dimensional experiences that feel native to Apple's spatial computing platform.

This is the design system I needed when I started designing for Vision Pro. Now it's yours.

Executive Overview

The Quantum-Spatial Design System is a comprehensive design framework optimized for Apple Vision Pro that combines:

Computational Mathematical Analytics - Physics-based motion and depth perception
Pattern Recognition Intelligence - Adaptive layouts based on user behavior
Apple HIG Compliance - Native spatial computing standards
Accessibility-First Design - WCAG AAA with spatial affordances
M4 Neural Engine Integration - Real-time rendering optimization

What Makes It "Quantum-Spatial"

The name isn't marketing—it's a technical description:

Quantum: Elements exist in multiple states simultaneously (heritage flat design ↔ dimensional volumetric design)
Spatial: True 3D positioning with z-depth layers, not just parallax effects
Computational: Physics-based animations and interactions calculated in real-time
Intelligent: Adaptive learning from user patterns via M4 Neural Engine

Part 1: The Quantum-Spatial Philosophy

From Flat to Dimensional: A Creative Director's Journey

Traditional UI Design (2010-2023):

Fixed screen dimensions (375x667, 1920x1080, etc.)
2D coordinate system (x, y)
Click/tap interactions
Visual hierarchy through size, color, position
Responsive breakpoints for different screens

Spatial Computing (2024+):

Infinite canvas in all directions
3D coordinate system (x, y, z) + rotation + scale
Gaze + gesture + voice interactions
Depth hierarchy through physical distance
Adaptive layouts based on user position and context

The Challenge: Maintaining Design Standards in 3D Space

When you move from 2D to 3D, every design principle needs re-evaluation:

2D Typography: 16px body text, 24px headings
3D Typography: How big should text be at 2 meters? At 5 meters? How does it scale based on viewing angle?

2D Color: #FF6B9D (Rose Energy) on #000000 background
3D Color: Same hex value, but now affected by spatial lighting, depth fog, glassmorphism, and volumetric effects

2D Layout: Grid system with 8px base unit
3D Layout: Z-depth layers at 0.5m, 1m, 2m, 5m, 10m with proper occlusion and collision detection

The Solution: Mathematical Frameworks + Machine Learning

The Quantum-Spatial Design System uses computational analytics to solve these problems:

/**
 * Spatial Typography Scale
 * Calculates optimal font size based on viewing distance
 */
export class SpatialTypographyScale {
  /**
   * Visual Angle Formula: θ = 2 * arctan(h / 2d)
   * Where:
   * - θ = visual angle (degrees)
   * - h = object height (meters)
   * - d = viewing distance (meters)
   * 
   * For readable text: θ should be ~0.3° minimum
   */
  calculateOptimalSize(viewingDistance: number): number {
    const minVisualAngle = 0.3 * (Math.PI / 180); // Convert to radians
    const optimalHeight = 2 * viewingDistance * Math.tan(minVisualAngle / 2);
    
    // Convert from meters to points (72 DPI standard)
    const pointsPerMeter = 2834.65; // 72 DPI * 39.37 inches/meter
    return optimalHeight * pointsPerMeter;
  }
  
  /**
   * Apply to design tokens
   */
  generateSpatialScale(): SpatialTypographyTokens {
    return {
      nearField: {  // <1m - Readable even at arm's length
        body: this.calculateOptimalSize(0.5),      // ~12pt
        heading: this.calculateOptimalSize(0.5) * 1.5  // ~18pt
      },
      midField: {   // 1-3m - Primary interaction zone
        body: this.calculateOptimalSize(2.0),      // ~24pt
        heading: this.calculateOptimalSize(2.0) * 1.5  // ~36pt
      },
      farField: {   // 3-10m - Environmental/contextual
        body: this.calculateOptimalSize(5.0),      // ~48pt
        heading: this.calculateOptimalSize(5.0) * 1.5  // ~72pt
      }
    };
  }
}

Part 2: Z-Depth Layer System

Implementation: RealityKit Materials

Each layer uses specific material properties for proper depth perception:

// SpatialLayerMaterials.swift
import RealityKit
import SwiftUI

enum SpatialLayer {
    case focus      // Z0
    case interactive // Z-1
    case content    // Z-2
    case environment // Z-3
    case backdrop   // Z-4
    
    var distance: Float {
        switch self {
        case .focus: return 0.4
        case .interactive: return 1.0
        case .content: return 2.0
        case .environment: return 5.0
        case .backdrop: return 10.0
        }
    }
    
    var material: RealityKit.Material {
        switch self {
        case .focus:
            // Solid, high-fidelity material
            return PhysicallyBasedMaterial(
                baseColor: .init(tint: .white),
                metallic: 0.1,
                roughness: 0.3,
                clearcoat: .init(floatLiteral: 0.8)
            )
            
        case .interactive:
            // Subtle glassmorphism
            return PhysicallyBasedMaterial(
                baseColor: .init(tint: .white.opacity(0.95)),
                metallic: 0.0,
                roughness: 0.2,
                clearcoat: .init(floatLiteral: 0.6),
                blending: .transparent(opacity: 0.95)
            )
            
        case .content:
            // Moderate glassmorphism
            return PhysicallyBasedMaterial(
                baseColor: .init(tint: .white.opacity(0.85)),
                metallic: 0.0,
                roughness: 0.3,
                clearcoat: .init(floatLiteral: 0.4),
                blending: .transparent(opacity: 0.85)
            )
            
        case .environment:
            // Heavy glassmorphism + depth fog
            return PhysicallyBasedMaterial(
                baseColor: .init(tint: .white.opacity(0.6)),
                metallic: 0.0,
                roughness: 0.4,
                clearcoat: .init(floatLiteral: 0.2),
                blending: .transparent(opacity: 0.6),
                fog: .init(color: .black, density: 0.1)
            )
            
        case .backdrop:
            // Extreme depth fog + particle effects
            return PhysicallyBasedMaterial(
                baseColor: .init(tint: .white.opacity(0.3)),
                metallic: 0.0,
                roughness: 0.5,
                blending: .transparent(opacity: 0.3),
                fog: .init(color: .black, density: 0.3)
            )
        }
    }
}

Adaptive Layer Positioning

The system automatically adjusts layer distances based on user context:

/**
 * Adaptive Spatial Layout Engine
 * Adjusts UI positioning based on user's physical space
 */
export class AdaptiveSpatialLayout {
  async calculateOptimalLayout(context: SpatialContext): Promise<LayoutPlan> {
    const { roomSize, userPosition, headOrientation } = context;
    
    // Use M4 Neural Engine for real-time calculation
    const analysis = await this.m4NeuralEngine.analyze({
      roomDimensions: roomSize,
      userPosture: userPosition.posture, // sitting, standing, reclining
      availableSpace: this.calculateAvailableSpace(roomSize, userPosition),
      userPreferences: await this.loadUserPreferences()
    });
    
    return {
      focusPlane: this.positionFocusPlane(analysis),
      interactivePlane: this.positionInteractivePlane(analysis),
      contentPlane: this.positionContentPlane(analysis),
      environmentPlane: this.positionEnvironmentPlane(analysis),
      backdropPlane: this.positionBackdropPlane(analysis)
    };
  }
  
  private positionFocusPlane(analysis: SpatialAnalysis): PlanePosition {
    // Focus plane should always be within comfortable arm's reach
    // Adjust for sitting (closer) vs standing (slightly farther)
    const baseDistance = analysis.userPosture === 'sitting' ? 0.35 : 0.45;
    
    // Adjust for room constraints
    const maxDistance = Math.min(baseDistance, analysis.availableSpace.forward * 0.8);
    
    return {
      distance: maxDistance,
      height: analysis.userPosition.eyeLevel,
      width: 0.4, // 40cm wide - comfortable field of view
      height: 0.3 // 30cm tall
    };
  }
}

Part 3: Quantum State Transitions

The Three States of Spatial Elements

Elements in the Quantum-Spatial Design System exist in three states:

1. Heritage State (Flat/2D)

Used for distant elements (Z-3, Z-4)
Pixel-perfect rendering
Traditional 2D layout rules
Lower computational cost

2. Transitional State (Hybrid)

Used for content plane (Z-2)
Partially dimensional
Blends flat and volumetric properties
Moderate computational cost

3. Quantum State (Full 3D)

Used for interaction planes (Z0, Z-1)
Fully volumetric
Dynamic particles and fluid effects
Higher computational cost

State Transition Animation

// QuantumStateTransition.swift
import RealityKit

class QuantumStateTransition {
    /**
     * Animate element from Heritage State to Quantum State
     * as user brings it closer (e.g., pulling content forward)
     */
    func transitionToQuantum(entity: Entity, duration: TimeInterval = 0.8) {
        // 1. Heritage State (0.0-0.3 of animation)
        let heritageAnimation = FromToByAnimation(
            from: Transform(scale: [1, 1, 0.01], rotation: .identity),
            to: Transform(scale: [1, 1, 0.1], rotation: .identity),
            duration: duration * 0.3,
            timing: .easeIn
        )
        
        // 2. Transitional State (0.3-0.6 of animation)
        let transitionalAnimation = FromToByAnimation(
            from: Transform(scale: [1, 1, 0.1], rotation: .identity),
            to: Transform(scale: [1, 1, 0.5], rotation: .identity),
            duration: duration * 0.3,
            timing: .linear
        )
        
        // 3. Quantum State (0.6-1.0 of animation)
        let quantumAnimation = FromToByAnimation(
            from: Transform(scale: [1, 1, 0.5], rotation: .identity),
            to: Transform(scale: [1, 1, 1], rotation: .identity),
            duration: duration * 0.4,
            timing: .easeOut
        )
        
        // Add particle effects during transition
        self.addParticleEffects(to: entity, startingAt: duration * 0.5)
        
        // Chain animations
        entity.playAnimation(heritageAnimation.sequence {
            transitionalAnimation.sequence {
                quantumAnimation
            }
        })
    }
    
    private func addParticleEffects(to entity: Entity, startingAt delay: TimeInterval) {
        // Quantum pixel particles emerge during final transition
        let particleEmitter = ParticleEmitterComponent(
            particles: self.createQuantumPixels(),
            emissionRate: 100,
            lifetime: 1.0,
            shape: .sphere(radius: 0.5)
        )
        
        DispatchQueue.main.asyncAfter(deadline: .now() + delay) {
            entity.components.set(particleEmitter)
        }
    }
}

Part 4: Pattern Recognition & Adaptive Learning

Swift Frontend Design Service Integration

The design system includes AI-powered pattern recognition:

/**
 * Enhanced Swift Frontend Design Service
 * Integrates pattern recognition and adaptive learning
 */
export class EnhancedSwiftFrontendDesignService {
  private patternRecognizer: PatternRecognitionEngine;
  private adaptiveLearner: AdaptiveLearningPipeline;
  
  async analyzeDesignRequest(request: DesignRequest): Promise<DesignAnalysis> {
    // 1. Recognize design patterns
    const patterns = await this.patternRecognizer.analyze(request);
    
    // 2. Match against learned preferences
    const preferences = await this.adaptiveLearner.getUserPreferences();
    
    // 3. Generate optimal design
    const design = await this.generateDesign({
      request,
      patterns,
      preferences
    });
    
    // 4. Validate against Apple HIG
    const validation = await this.validateHIGCompliance(design);
    
    // 5. Learn from this interaction
    await this.adaptiveLearner.learn({
      request,
      design,
      validation
    });
    
    return {
      design,
      patterns,
      validation,
      confidence: this.calculateConfidence(patterns, validation)
    };
  }
}

Pattern Recognition Examples

Pattern 1: User Prefers Closer UI

// System learns: User consistently moves UI closer
const pattern = {
  name: 'prefers-near-field',
  confidence: 0.87,
  observations: 24,
  adaptation: {
    defaultDistance: {
      from: 2.0, // meters
      to: 1.2    // meters (closer)
    },
    glassIntensity: {
      from: 0.85, // more transparent
      to: 0.95    // more opaque (better for near viewing)
    }
  }
};

Pattern 2: User Organizes by Color

// System learns: User groups items by color category
const pattern = {
  name: 'color-based-organization',
  confidence: 0.92,
  observations: 31,
  adaptation: {
    defaultLayout: {
      from: 'spatial-grid',
      to: 'color-clustered-radial'
    },
    colorCoding: {
      enabled: true,
      categories: ['work', 'personal', 'creative', 'reference']
    }
  }
};

Strategic Intelligence Coordinator Integration

The design system connects to the Strategic Intelligence Coordinator for high-level decision making:

/**
 * Strategic Intelligence Coordinator
 * Makes Apple Product Director-level decisions about design
 */
export class StrategicIntelligenceCoordinator {
  async makeDesignDecision(context: DesignContext): Promise<DesignDecision> {
    // 1. Analyze current design state
    const currentState = await this.analyzeCurrentState(context);
    
    // 2. Identify improvement opportunities
    const opportunities = await this.identifyOpportunities(currentState);
    
    // 3. Evaluate against Apple standards
    const appleCompliance = await this.evaluateAppleStandards(opportunities);
    
    // 4. Consider user patterns
    const userPatterns = await this.getUserPatterns(context.userId);
    
    // 5. Make strategic decision
    return this.m4NeuralEngine.decide({
      currentState,
      opportunities,
      appleCompliance,
      userPatterns,
      constraints: context.constraints
    });
  }
}

Part 5: Accessibility in Spatial Computing

WCAG AAA for 3D Interfaces

The Quantum-Spatial Design System achieves WCAG AAA compliance in spatial computing:

Color Contrast in 3D

// SpatialAccessibility.swift
class SpatialAccessibility {
    /**
     * Calculate effective contrast ratio considering depth fog
     * Standard WCAG uses: (L1 + 0.05) / (L2 + 0.05)
     * Spatial adjustment: multiply by depth fog factor
     */
    func calculateSpatialContrast(
        foreground: Color,
        background: Color,
        distance: Float
    ) -> Float {
        // Base contrast ratio
        let baseContrast = self.calculateWCAGContrast(
            foreground: foreground,
            background: background
        )
        
        // Depth fog reduces effective contrast
        let fogFactor = self.depthFogFactor(distance)
        let effectiveContrast = baseContrast * fogFactor
        
        // For WCAG AAA, need 7:1 for normal text
        // In spatial computing, aim for 8:1 to account for viewing angles
        return effectiveContrast
    }
    
    func depthFogFactor(_ distance: Float) -> Float {
        // Atmospheric scattering reduces contrast with distance
        // Formula: e^(-distance / visibility)
        let visibility: Float = 10.0 // meters
        return exp(-distance / visibility)
    }
}

VoiceOver for Spatial Elements

// VoiceOver descriptions include spatial context
func accessibilityLabel(for entity: Entity, at distance: Float) -> String {
    let baseLabel = entity.name ?? "Unknown element"
    let distanceDescription = self.describeDistance(distance)
    let depthLayer = self.determineDepthLayer(distance)
    
    return "\(baseLabel), \(distanceDescription), \(depthLayer)"
}

func describeDistance(_ distance: Float) -> String {
    switch distance {
    case 0..<0.5:
        return "within arm's reach"
    case 0.5..<1.5:
        return "in front of you"
    case 1.5..<3.0:
        return "at reading distance"
    case 3.0..<7.0:
        return "in the middle distance"
    default:
        return "in the background"
    }
}

Reduce Motion for Spatial Transitions

// Respect accessibilityReduceMotion system setting
if UIAccessibility.isReduceMotionEnabled {
    // Use instant transitions instead of animations
    entity.transform = targetTransform
} else {
    // Use full quantum state transition animations
    quantumTransition.transitionToQuantum(entity: entity)
}

Part 6: Real-World Application: Hexecute Game UI

Case Study: Spatial Strategy Game Interface

For Hexecute (hexagonal space strategy game), the Quantum-Spatial Design System enables:

Game Board as Environmental Layer (Z-3)

// Game board floats at 5 meters
let gameBoard = Entity()
gameBoard.position = [0, 1.5, -5.0] // 5m away, eye level
gameBoard.components.set(ModelComponent(
    mesh: .generateHexagonalGrid(radius: 10),
    materials: [SpatialLayer.environment.material]
))

// Add subtle quantum pixel particles
gameBoard.components.set(ParticleEmitterComponent(
    particles: QuantumPixelParticles(),
    emissionRate: 50,
    lifetime: 2.0
))

Unit Cards as Interactive Layer (Z-1)

// Unit cards at 1 meter for easy interaction
let unitCard = Entity()
unitCard.position = [0.3, 1.4, -1.0] // Slightly to right, at hand level
unitCard.components.set(ModelComponent(
    mesh: .generatePlane(width: 0.15, height: 0.20),
    materials: [SpatialLayer.interactive.material]
))

// Add gaze + pinch interaction
unitCard.components.set(InputTargetComponent())
unitCard.components.set(CollisionComponent(
    shapes: [.generateBox(width: 0.15, height: 0.20, depth: 0.01)]
))

Action Overlay as Focus Layer (Z0)

// Action confirmation appears right in front
let actionOverlay = Entity()
actionOverlay.position = [0, 1.5, -0.4] // 40cm away
actionOverlay.components.set(ModelComponent(
    mesh: .generatePlane(width: 0.30, height: 0.15),
    materials: [SpatialLayer.focus.material]
))

// Requires direct interaction to proceed
actionOverlay.components.set(HapticFeedbackComponent(
    style: .medium,
    trigger: .onInteraction
))

Performance Optimization with M4

// M4 Neural Engine optimizes rendering
class M4RenderOptimizer {
    func optimizeForCurrentFrame(entities: [Entity]) {
        // 1. Calculate user's gaze direction
        let gazeVector = ARKitSession.shared.userGaze
        
        // 2. Prioritize entities in gaze cone
        let prioritized = entities.sorted { entity1, entity2 in
            let angle1 = gazeVector.angle(to: entity1.position)
            let angle2 = gazeVector.angle(to: entity2.position)
            return angle1 < angle2
        }
        
        // 3. Adjust LOD based on priority
        for (index, entity) in prioritized.enumerated() {
            let lodLevel = self.calculateLOD(
                priority: index,
                distance: entity.position.distance(to: .zero)
            )
            entity.components[ModelComponent.self]?.lodLevel = lodLevel
        }
    }
    
    func calculateLOD(priority: Int, distance: Float) -> Int {
        // High priority + close = full detail (LOD 0)
        // Low priority + far = low detail (LOD 3)
        if priority < 5 && distance < 2.0 {
            return 0 // Full detail
        } else if priority < 10 && distance < 5.0 {
            return 1 // High detail
        } else if distance < 10.0 {
            return 2 // Medium detail
        } else {
            return 3 // Low detail
        }
    }
}

Part 7: Design Token System

Complete Token Architecture

/**
 * Quantum-Spatial Design Tokens
 * Single source of truth for all visual properties
 */
export const QuantumSpatialTokens = {
  // Color System
  colors: {
    primary: {
      subtle: '#00FFFF',      // Subtle Cyan
      quantum: '#B47EDE',     // Quantum Violet
      energy: '#FF6B9D',      // Rose Energy
      heritage: '#FFD700'     // Gold Accent
    },
    semantic: {
      background: {
        primary: 'rgba(0, 0, 0, 0.95)',
        secondary: 'rgba(20, 20, 30, 0.85)',
        tertiary: 'rgba(40, 40, 50, 0.75)'
      },
      surface: {
        elevated: 'rgba(255, 255, 255, 0.1)',
        interactive: 'rgba(255, 255, 255, 0.15)',
        active: 'rgba(180, 126, 222, 0.3)'
      },
      text: {
        primary: 'rgba(255, 255, 255, 0.95)',
        secondary: 'rgba(255, 255, 255, 0.7)',
        tertiary: 'rgba(255, 255, 255, 0.5)',
        disabled: 'rgba(255, 255, 255, 0.3)'
      },
      border: {
        subtle: 'rgba(255, 255, 255, 0.1)',
        medium: 'rgba(255, 255, 255, 0.2)',
        strong: 'rgba(255, 255, 255, 0.3)'
      }
    }
  },
  
  // Spatial Typography
  typography: {
    fontFamily: {
      display: 'SF Pro Display',
      text: 'SF Pro Text',
      mono: 'SF Mono'
    },
    spatialScale: {
      nearField: {    // <1m
        body: 12,
        heading1: 18,
        heading2: 16,
        heading3: 14
      },
      midField: {     // 1-3m
        body: 24,
        heading1: 36,
        heading2: 30,
        heading3: 26
      },
      farField: {     // 3-10m
        body: 48,
        heading1: 72,
        heading2: 60,
        heading3: 52
      }
    },
    lineHeight: {
      tight: 1.2,
      normal: 1.5,
      relaxed: 1.8
    }
  },
  
  // Z-Depth Layers
  zDepth: {
    focus: { distance: 0.4, blur: 0, fog: 0 },
    interactive: { distance: 1.0, blur: 0.1, fog: 0.05 },
    content: { distance: 2.0, blur: 0.2, fog: 0.15 },
    environment: { distance: 5.0, blur: 0.4, fog: 0.35 },
    backdrop: { distance: 10.0, blur: 0.8, fog: 0.60 }
  },
  
  // Spatial Spacing
  spacing: {
    nearField: {
      xs: 0.01,  // 1cm
      sm: 0.02,  // 2cm
      md: 0.04,  // 4cm
      lg: 0.08,  // 8cm
      xl: 0.16   // 16cm
    },
    midField: {
      xs: 0.05,  // 5cm
      sm: 0.10,  // 10cm
      md: 0.20,  // 20cm
      lg: 0.40,  // 40cm
      xl: 0.80   // 80cm
    }
  },
  
  // Material Properties
  materials: {
    glassmorphism: {
      subtle: { opacity: 0.95, blur: 10 },
      medium: { opacity: 0.85, blur: 20 },
      strong: { opacity: 0.60, blur: 40 }
    },
    quantum: {
      particles: { count: 100, lifetime: 2.0, size: 0.002 },
      energy: { intensity: 0.8, pulseRate: 1.5 },
      glow: { radius: 0.05, intensity: 0.6 }
    }
  },
  
  // Animation Timings
  animation: {
    instant: 0,
    fast: 0.2,
    normal: 0.4,
    slow: 0.8,
    quantum: 1.2  // Full state transition
  },
  
  // Interaction Zones
  interaction: {
    minTouchTarget: 0.044, // 44mm minimum (Apple HIG)
    comfortableReach: 0.6,  // 60cm from user
    optimalDistance: 1.0    // 1m sweet spot
  }
} as const;

Token Usage in Components

// SwiftUI component using design tokens
struct QuantumButton: View {
    let label: String
    let layer: SpatialLayer
    
    var body: some View {
        Button(action: {}) {
            Text(label)
                .font(.custom(
                    QuantumSpatialTokens.Typography.fontFamily.text,
                    size: self.fontSize
                ))
                .foregroundColor(
                    Color(QuantumSpatialTokens.Colors.text.primary)
                )
                .padding(self.padding)
                .background(
                    RoundedRectangle(cornerRadius: 8)
                        .fill(self.backgroundMaterial)
                )
        }
        .frame3D(
            position: self.position,
            minWidth: QuantumSpatialTokens.Interaction.minTouchTarget,
            minHeight: QuantumSpatialTokens.Interaction.minTouchTarget
        )
    }
    
    private var fontSize: CGFloat {
        switch layer {
        case .focus, .interactive:
            return CGFloat(QuantumSpatialTokens.Typography.spatialScale.nearField.body)
        case .content:
            return CGFloat(QuantumSpatialTokens.Typography.spatialScale.midField.body)
        case .environment, .backdrop:
            return CGFloat(QuantumSpatialTokens.Typography.spatialScale.farField.body)
        }
    }
    
    private var position: SIMD3<Float> {
        [0, 1.5, -layer.distance]
    }
}

Part 8: Integration with Shopify & E-Commerce

Spatial Commerce Experience

The design system extends to e-commerce with volumetric product displays:

// Spatial product card for Shopify integration
struct SpatialProductCard: View {
    let product: ShopifyProduct
    @State private var rotationAngle: Float = 0
    
    var body: some View {
        RealityView { content in
            // 1. Product 3D model
            let productModel = try await self.load3DModel(product.modelURL)
            productModel.position = [0, 0, -1.5] // Interactive plane
            
            // 2. Quantum-spatial material
            productModel.components.set(ModelComponent(
                mesh: productModel.mesh,
                materials: [self.createQuantumMaterial()]
            ))
            
            // 3. Product info panel
            let infoPanel = self.createInfoPanel()
            infoPanel.position = [0.4, 0, -1.5] // To the right
            
            content.add(productModel)
            content.add(infoPanel)
            
            // 4. Add rotation gesture
            productModel.components.set(InputTargetComponent())
        }
        .gesture(
            DragGesture()
                .targetedToEntity(where: .has(InputTargetComponent.self))
                .onChanged { value in
                    rotationAngle += Float(value.translation.width) * 0.01
                }
        )
    }
    
    private func createQuantumMaterial() -> PhysicallyBasedMaterial {
        var material = SpatialLayer.interactive.material as! PhysicallyBasedMaterial
        
        // Add quantum pixel particles
        material.custom.texture = .init(
            QuantumPixelTexture(
                color: QuantumSpatialTokens.Colors.primary.quantum
            )
        )
        
        return material
    }
}

Conclusion: A Design System for the Next Decade

After 15 years of designing for flat screens, the transition to spatial computing felt like starting over. But with the Quantum-Spatial Design System, I've built something that feels as native to Vision Pro as SwiftUI feels to iOS.

This system delivers:

✅ Mathematical precision - Physics-based motion and depth
✅ Computational intelligence - Adaptive learning from user patterns
✅ Apple HIG compliance - Native spatial computing standards
✅ Accessibility excellence - WCAG AAA in three dimensions
✅ Performance optimization - M4 Neural Engine integration
✅ Developer experience - Clear tokens, patterns, and components

For creative directors designing the future, developers building spatial experiences, and teams pushing the boundaries of human-computer interaction.