For 2021 - online Python 3 training - see ((here)).
Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.
Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
OpenGL / C / C++ - an example to get you started
A Computer Graphics application in C / C++ - that's the coding that one of my delegates is going to be doing for her "real work" after this week's course, and I found myself looking back to old times - when I used (amongst other things) to subcontract to Silicon Graphics to present courses on their GL Library - the forerunner of OpenGL.
It's surprising just how quickly things come back - this graphic was a quick example that I played with, setting up an image, drawing some vectors onto it, and swapping my buffers - the Silicon Graphics system was almost always double buffered, and (joy of joys) addressable with world rather than pixel co-ordinates.
The pretty pattern shown here is quite a short program - a "hello graphics world" example that I wrote to show a very simple program, and all the libraries, etc, that were needed at load time for it to work on my system (Xcode on Mac OS X). Source is [here]
and includes my load line so that you - if you have a similar environment to mine - won't end up having to play "hunt the include file" and "hunt the library". (written 2011-01-26)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articlesQ913 - Object Orientation and General technical topics - Computer Graphics Principles 
Client side (Applet) and Server side (Servlet) Graphics in Java - (2009-06-17) 
Why do I teach niche skills rather than mainstream? - (2010-02-13) 
But what will you DO with all those pictures? - (2010-05-09) 
Matplotlib - graphing in Python - teaching examples - (2010-10-10) 
Computer Graphics is fun - even if Java Applets are Old Hat - (2010-11-13) 
Computer Graphics in PHP - World (incoming data) to Pixel (screen) conversion - (2011-03-24) 
Scalable Vector Graphics - easy, low bandwidth, high resolution, dynamic. - (2011-04-23) 
Some SVG Elements, pixel and percent positioning - (2011-04-24)C211 - C and C based languages - Standard Libraries and other headers 
Sharing variables between files of code in C - extern - (2010-01-14) 
Your program - you just provide the filling in the sandwich - (2011-04-08) 
C and C++ - preprocess, compile, load, run - what each step is for - (2011-04-12) 
Sockets, time handling and keyboard interrupt handling in C - (2015-03-27)
Some other Articles
Jargon bustingDisassembling Python and Java - previously compiled codePython dictionaries - mutable and immutable keys and valuesLooking back at www.wellho.netOpenGL / C / C++ - an example to get you startedHotel star ratings - towards a better system of reviewStrings in CStructures v Structure Pointers in C. How, which, why.Setting up arrays in C - fixed size at compile time, or dynamicOn time
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