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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 under C211 - C and C based languages - Standard Libraries and other headers[3244] C and C++ - preprocess, compile, load, run - what each step is for - (2011-04-12) [3234] Your program - you just provide the filling in the sandwich - (2011-04-08) [2575] Sharing variables between files of code in C - extern - (2010-01-14) Q913 - Object Orientation and General technical topics - Computer Graphics Principles [3262] Some SVG Elements, pixel and percent positioning - (2011-04-24) [3261] Scalable Vector Graphics - easy, low bandwidth, high resolution, dynamic. - (2011-04-23) [3211] Computer Graphics in PHP - World (incoming data) to Pixel (screen) conversion - (2011-03-24) [3049] Computer Graphics is fun - even if Java Applets are Old Hat - (2010-11-13) [2992] Matplotlib - graphing in Python - teaching examples - (2010-10-10) [2758] But what will you DO with all those pictures? - (2010-05-09) [2633] Why do I teach niche skills rather than mainstream? - (2010-02-13) [2245] Client side (Applet) and Server side (Servlet) Graphics in Java - (2009-06-17)
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