Understanding the Spatial Web Browser Engine
1. What Is a Spatial Web Browser?
A Spatial Web Browser is a user agent that loads, interprets, and presents Web content (HTML, CSS, JS, WebGL/WebGPU, WebXR, media) directly inside a 3D coordinate space instead of flattening everything onto a 2D rectangular viewport. Every DOM element (text nodes, images, canvas, form controls, SVG, etc.) can be:
Positioned, rotated, and scaled in world / XR reference spaces
Layered with true depth ordering (not just z-index compositing) for stereoscopic correctness
Interacted with using spatial input sources (gaze, hands, controllers, future: eye tracking, anchors)
Composed alongside native 3D assets (GLTF models, environment maps) in one unified frame loop
In short: a Spatial Web Browser lets "regular Web pages" become immersive 3D experiences without abandoning open Web standards.
2. Why Not Just Extend an Existing (Classic) Browser?
Traditional engines (Blink, Gecko, WebKit) are extraordinarily capable—but architecturally optimized for 2D document + compositor pipelines. Retrofitting full 3D spatial semantics collides with deep assumptions:
... continue reading