How It Works
Capture, route, display — in real-time
Screen Grabber works as a layer type in the LSS4 video scene. Add a Screen Grabber layer, define the X position, Y position, width, and height of the capture area on your screen, and LSS4 continuously captures that region and feeds it into the video scene as a live texture. The captured content drives the LED pixels in real-time with low latency.
This is genuinely useful for live event work. Run your VJ software in one window, position a Screen Grabber over its output area, and the VJ visuals appear on your LED installation without any additional hardware, NDI streams, or video capture cards.
- Capture any X, Y, width, height region of the desktop
- Real-time feed — no pre-rendering required
- Works as a layer in the video scene alongside other layers
- Invert X / Y to flip captured content horizontally or vertically
- Per-layer color adjustments: contrast, brightness, saturation
- Works with any application visible on screen
Integration Use Cases
LSS4 as a "graphic card" for LED
Software developers who need LED pixel output often don't want to implement ArtNet, E1.31, or SPI protocols from scratch. Screen Grabber lets them use LSS4 as a display layer — their application renders to a window on screen, LSS4 captures it, and the LEC3 hardware handles the conversion to the LED protocol. No LED-specific code needed in the application.
This approach is used by developers building custom control applications, data visualizations, generative art software, and interactive installations who want to output to pixel LEDs without the complexity of direct hardware integration.
- Works with Resolume Avenue and Arena for VJ-to-LED routing
- Works with MadMapper for projection-mapped content on LEDs
- Works with any media player or streaming service on screen
- Low latency suitable for live performance use
- Developers can output to LEDs without LED-specific code
