This library provides a lightweight OpenGL-based framework based on PicoGL.

This library has been tested on esp32-wrover-b.

1. Download the library from the official repository.
2. Add the header files and source files to your project directory.

1. Implement your own initialization function and update function for updates.
2. Initialize the user interface by calling "ui_init()" function with your own initialization function and update function as arguments.
3. Call "ui_loop()" function to enter event loop and handle user interface events.
4. Call "ui_end()" function to release resources used for UI.

see example folder

**ui_init(void (init_fn)(void), int (update_fn)(void))

Initialize the user interface with your own initialization function and update function. Returns 0 on success, -1 otherwise.

Parameters:

• init_fn: a function pointer to your own initialization function.
• update_fn: a function pointer to your own update function for GUI logic updates.

ui_loop()

Main function to enter event loop and handle user interface events.

ui_end()

Release resources used for UI.

tkSwapBuffers()

Swap buffers to update the screen.

1. kaaass's blog.