the VFX screen vs Smart GreenScreen

the VFX Screen helps you prepare phones for screen inserts and replacements on set. Display a custom image, tracking markers, solid colors or patterns on the screen so the camera can capture what your VFX shot needs. Adjust colors in real time, scroll content vertically or horizontally, and use the three-finger gesture to lock the screen once it’s ready. The app is made for VFX supervisors, filmmakers and crews who need a quick, flexible screen setup during a shoot.

Smart GreenScreen is a professional chroma key app for macOS and iOS with tracking markers, overlay support, and high-resolution PNG export. It replaces a selected background color (for example green) with another color and helps with camera tracking, livestreams, conferencing, and studio production workflows. Core Features Greenscreen / Chroma Key • Replaces a background color with another color in real time. • Adjustable RGB and brightness for both background and marker colors. • 25 color presets for fast setup. • “Slider for marker” toggle: sliders can control either background or marker color. • Tab key toggles greenscreen on/off (black when off). • Overlay image with alpha support (PNG transparency). Tracking Markers • 4 marker types: 1) Cross 2) Triangle target 3) Checkerboard circle 4) Circle+Cross • Up to 12 markers simultaneously. • Adjustable marker size (3–25% of screen). • Adjustable stroke width for cross-style markers (2–12). • Invert option for better visibility. • Add, move, and delete markers with dedicated modes and clear visual mode indicators. • Default marker color is black on first launch for strong contrast on green backgrounds. Overlay Tools • Collapsible Overlay section in Settings. • Base overlay image: Load/Remove PNG with transparency. • Floating PNG overlays: import multiple transparent PNGs, place them freely on screen, and position them like markers. • Floating overlays can be moved and deleted using the same Move/Delete workflow as markers. • Dedicated delete action for the overlay image. High-Resolution PNG Export (Unique Feature) • Export the current greenscreen scene as PNG, including markers and overlays. • Preset export sizes from HD up to 8K. • Custom pixel size input for any workflow. • iOS export options: • Share sheet export (AirDrop, Messages, Mail, etc.) • Save to Files / iCloud • macOS export via native save dialog. • Great for VFX planning, camera-tracking references, scene setup docs, and still frame delivery. Keyboard Features (iOS) • Optional on-screen keyboard for blind typing on the greenscreen. • “On marker tap only” mode: keyboard appears when tapping a marker, hides with Enter. • Optional clean typing mode with reduced suggestion/autocorrect distractions. • External keyboard support with Tab toggle behavior matching macOS. Menu Access • macOS: Shift+Click or Cmd+M. • iOS: 3-finger tap (always available), configurable multi-tap (3–10), or long press. Settings & UX • Save & Load Greenscreen Presets • Auto-saved settings. • Reset to defaults. • Collapsible sections for clearer navigation (Colors, Marker, Overlay, Keyboard Setup, Presets, Export). • Consistent icon-based controls and improved spacing for fast operation during production. Technical Details • Built with SwiftUI. • Localization: DE, EN, ES, FR, IT, JA, PT, RU, ZH. • Settings stored as JSON in Application Support. • macOS: window + fullscreen, optional auto-hiding title bar. • iOS: fullscreen layout optimized for notch and different screen sizes. Target Audience • Video production / post-production • Livestreaming • Video conferencing • Camera tracking with greenscreen backgrounds • Presenters and performers using marker-based typing workflows