3D & Spatial Computing

• Hard surface modeling, modifiers (bevel, boolean), and clean quad topology
• UV mapping, texel density calculation, and texture baking in Substance/Blender
• PBR material workflows: Albedo, Roughness, Metallic, Normal maps

• Nanite virtualized geometry import and performance profiling
• Lumen dynamic global illumination, reflections, and post-processing volumes
• Blueprint visual scripting for architectural door triggers, lighting changes, and material swaps

• Spatial design principles: Windows, Volumes, and Immersive Spaces in visionOS
• RealityKit entities, RealityView, and USDZ model placement in passthrough AR
• Spatial audio integration and gaze/hand-tracking pinch gesture interactions

Q1: How do Nanite and Lumen revolutionize real-time rendering in Unreal Engine 5?

Nanite virtualizes geometry, allowing developers to import film-quality assets with millions of polygons directly into the engine without manual LOD (Level of Detail) authoring; it dynamically scales rendering detail to the pixel level. Lumen provides fully real-time dynamic global illumination and reflections, eliminating the hours previously required to bake static lightmaps.

Q2: What are the three core presentation modes in visionOS for Apple Vision Pro?

The three modes are: 1) Windows (2D planes floating in physical space built with familiar SwiftUI), 2) Volumes (bounded 3D bounded containers presenting volumetric content with RealityKit), and 3) Immersive Spaces (unbounded mixed or fully immersive virtual reality environments taking over the user’s peripheral vision).