by Petrov Vladimir
Compact and simply Vector Formula of the Intersection Point of Two Line Segments
by LLLLGGGG
In this article, I am going to explain how to generate a hexagonal tessellation and how to draw it in Unity 3D
by Steffen Ploetz
Box, cylinder, cone and sphere construction for OpenGL with texture and light effects
by Peter Occil
Describes parametric curves and surfaces and how to generate them using my public-domain HTML 3D library