[1.10] Draw lines in GUI like in thaumcraft

[FuzeIII]

Hi,

I would like to know how one would recreate lines such as the one present in the thaumonomicon of Thaumcraft (https://gyazo.com/0b6f5cf9effcbd822d9974251a541480). Theses are not straight lines and I honestly don't know where to start. In addition, I did a bit of research to find if there was a pre-made function that would draw a straight line between 2 points. I found nothing except drawHorizontalLine and drawVerticalLine, which is not really what I'm interested in.

 

I'm a beginer with OpenGL, so I assume I would have to define 2 vertices and draw a line in between them, but how would I define the thickness of the line ? I tried a few things but noithing would really render. I would be very grateful if someone could provide an example.

 

Thanks.

-Fuze

[Draco18s]

They're either bezier curves or splines.

 

You'd likely have to write the math for them yourself