Opens an SDL3 window and reports the display resolution, refresh rate, and pixel density. A simple bouncing-ball physics animation runs to let you verify smooth rendering.
Use this to check your display setup before running timing-sensitive experiments.
sudo apt install libsdl3-dev on Ubuntu/Debian)# Fullscreen
go run main.go
# Windowed (development / testing)
go run main.go -d
| Flag | Default | Description |
|---|---|---|
-d |
off | Development mode: windowed 1024×768 |
Press Escape or Q to quit.
This is a hardware verification utility. No data file is written.