These are the narratives discussing the various demonstration applications that are provided with the Lumen library. Most of the demos are probably slanted toward the X window system; MS-Windows and Mac users of Lumen, if there ever are any, may not be familiar with some of the terms.

• colors: An adaptation of the "glXIntro" demo app, showing the simplest and most basic way to create a window, draw something in it, and handle some limited input events.

• sgi_simple: A port of the old SGI demo app "simple", again very basic, showing a different way to handle input events.

• spinner: Showing use of the animation package, and a third way to do event handlers.

• texture: A variant of spinner showing use of the image loading package.

• text1: Direct use of the Lumen.Font.Txf package, which normal apps shouldn't have to do, once the Label widget is implemented.

• text2: Another demo of the Lumen.Font.Txf package, this time displaying actual "live" program data.

• multi: Illustration of an app with multiple windows.

• blending: Tool for exploring the OpenGL blending function.

• fire: Neat "fire" effect using a particle system and blending.

And these are the NeHe demos that we currently have:

• lesson01: Simplest possible app, just opens a window and clears it to black, then waits for it to be closed, either via the window manager, or with a keystroke. Sort of a "hello world" for OpenGL.

• lesson02: Draws a triangle and a square using default color.

• lesson03: Getting fancy now! Draws the triangle and square with non-default colors.

• lesson04: Spins the triangle and square from lesson03.

• lesson05: Going full 3D now: the triangle and square from lesson04 become a pyramid and a cube, respectively. The cube also spins in two axes.

• lesson06: Textured spinning cube.

• lesson07: Another textured spinning cube, this time with keyboard controls.

• lesson08: Spinning cube with a different texture and even more keyboard controls.

Last Updated: 14 Dec 2011 09:32:32