Spreadsheet "breaks" Apple Vision Pro eye-tracking

A technical blog post showing how a dense spreadsheet causes shimmering artifacts on the Apple Vision Pro highlights the limits of its eye‑tracked foveated rendering and display resolution. Commenters note this is expected behavior for first‑generation hardware and optimization techniques, and that most real‑world content won’t expose the issue as starkly, but agree it underscores why the headset isn’t yet a full monitor replacement—especially for heavy Excel users. The thread branches into whether VR headsets can realistically support long, productivity‑focused workflows, with some seeing promise in virtual multi‑monitor setups and others arguing that ergonomic and UX constraints will keep such devices niche for serious work.

Nature of the “break” and foveated rendering

  • Many argue nothing is “broken”: this is normal foveated rendering under a worst‑case stimulus (fine white grid on black).
  • Others note a distinct “fizzing” or shimmer in the spreadsheet, beyond just lower peripheral resolution, likely due to aliasing/moire and non‑ideal downsampling.
  • One commenter points out Apple may not be doing gamma‑correct downsampling, which can cause brightness shifts and artifacts; others say aliasing is still the main issue.
  • A follow‑up from the original article notes that a lossless PNG of the sheet looks fine, suggesting an Excel‑specific rendering bug or at least different treatment for images vs app content.

Eye tracking accuracy and interaction constraints

  • Eye tracking is reported as generally precise, with “fingertip‑sized” targets workable at normal virtual screen distances.
  • Precision has limits: small, tightly packed UI elements (like spreadsheet cells or cell handles) are hard to target reliably with gaze + pinch.
  • Some bring up military eye‑tracking (e.g., fighter jets) as evidence it can be very accurate, but others note that UIs with many small adjacent targets are a harder problem.

Productivity, spreadsheets, and virtual monitors

  • Several commenters doubt Vision Pro is currently a serious productivity or “monitor replacement” device, especially for heavy Excel users who rely on keyboards, shortcuts, and low latency.
  • Others see strong potential: multiple large virtual monitors anywhere, particularly for travel or couch/bed work, versus being limited to a laptop screen.
  • There’s a long debate on whether more screens actually boost productivity:
    • Some cite studies claiming substantial gains from multi‑monitor setups.
    • Others argue good tiling window managers and virtual desktops on a single monitor can be equally or more effective.
  • “Excel gang” power users are described as extremely hotkey‑centric; many doubt current eye/pinch UX fits their workflows.

Use cases, ergonomics, and version‑1 limitations

  • Many frame Vision Pro as 1.0 hardware/software; they expect improvements but doubt AVP1 can fully “fix” resolution‑driven artifacts.
  • Common suggested primary uses: media consumption, occasional remote work, and travel setups, not all‑day office replacement yet.
  • Some report wearing it comfortably for many hours by adjusting straps and posture; others are skeptical VR in general works well for extended work.

Social and UX considerations

  • A minority express concern that such devices further isolate people and encourage constant screen immersion.
  • Developers note the need for larger minimum touch targets and possibly rethinking spreadsheet‑like interfaces, zooming, and interaction models for eye‑driven UIs.