Quirkgoose presents

Blackhole

A cinematic black hole simulator for macOS with gravitational lensing, accretion disks, NASA image backdrops, hover and flyby camera modes, and high-quality offline video export.

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Built by Quirkgoose for people who want black holes to feel beautiful, strange, and a little cinematic.

Needed

Hero video or GIF

1600×900 or 1920×1080. Best candidate: single black hole over a Webb or Hubble background with slow hover motion.

Native macOS rendering

Built in SwiftUI and Metal, with live controls for computation presets, camera motion, overlays, and background queues.

NASA background library

Rotate through curated NASA and James Webb images, use saved custom folders, and stitch images into panoramic sky maps.

Single and binary scenes

Switch between a classic single black hole view and an experimental binary setup with its own framing and motion behavior.

Offline export

Export smoother MP4 renders than real-time playback allows, with selectable backgrounds, codecs, and quality modes.

Feature Highlights

  • Mouse, hover, and flyby camera modes
  • Clock overlay and image info overlays
  • Accretion disk color, visibility, and rotation controls
  • Auto background cycling and saved custom folders
  • Pause and resume simulation state cleanly
  • Offline MP4 export with HEVC or H.264
  • NASA image metadata built into the app
  • Compact quick menu plus detailed settings window
Needed

Single black hole GIF

Show a slow hover path with a bright accretion disk over one NASA background. Ideal size: 1400×900.

Needed

Binary mode clip

A short MP4 or GIF showing the experimental binary mode, wide enough to show both black holes clearly.

Needed

UI / export screenshot

Capture the detailed settings window with export controls and the background queue visible.

Needed

NASA background close-up

A crisp still showing a James Webb or Hubble image behind the lensing effect without the UI.

Media checklist

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