OpenGL Display
OpenGL Display previews the active processed video with hardware-accelerated rendering. It shows processing FPS and display-preview FPS separately.
Double-click the preview to toggle fullscreen; press Esc to leave fullscreen. When frames stop arriving, the preview clears after about one second. Resume the capture source to restore it.
Settings
Choose a display rate from every frame down to every twentieth frame (100%, 50%, 33%, 25%, 20%, 10%, or 5%). Lower values reduce preview CPU/GPU use without changing the capture or script rate.
Use
| Step | Action |
|---|---|
| 1 | Start a capture tool. |
| 2 | Start an optional CV script. |
| 3 | Open/start OpenGL Display. |
| 4 | Reduce the display rate if previewing takes resources from capture or inference. |
If the panel stays black, confirm the capture tool is running and try Video Display as a compatibility check.