Had  a vacation of two weeks. It was great. I did a lot of interesting
  stuff (math behind asciiworld[1] and asciifield[2]).  It's been  three
  years  since  I've  done anything like that. And I missed it. Computer
  graphics is  so  much  fun!  Even  if  it's  something  as  simple  as
  asciifield.

  Plus,  today's computers have gotten extremely powerful. Linux drivers
  are pretty good, too. This was very different when I initially learned
  this  stuff.  You'd  have  to  refrain from using this feature or that
  feature because your computer couldn't do it. Now, my integrated Intel
  GPU  easily  outranks  every GPU I ever had. Not to mention the brutal
  power of today's CPUs.

  It's time to revisit OpenGL.

  ____________________

  1. https://github.com/vain/asciiworld

  2. https://github.com/vain/asciifield