As promised, the fourth chapter of the NeHe OpenGL lessons ported to make use of the Qt toolkit.
Fourth chapter: fog, fonts revisited, quadrics, particle engine, triangle strips, masking
In the fourth chapter you will learn a few cooler tricks. You will learn how to create good-looking fog effects and how certain objects can easily be constructed using quadrics. But the coolest thing that you will learn is how to create a simple particle engine (during lesson 19). To end off the chapter, you will learn how you can use masking to create partial transparency using bitmap textures.
Some minor modifications were made to improve the visual appearance of some of the lessons.
Videos and source code
This video shows the fog effect (lesson 16)
This video shows what you can achieve using quadrics (lesson 18)
This video shows the very cool particle engine that you will create! (lesson 19)
This video shows which effect masking has (lesson 20)
You can download the Qt 4 source code for this chapter here.
PS: The port of chapter 5 will take a while… I will be a bit busy the coming weeks, and the first lesson of chapter 5 is HUGE, so will require a lot of time to port.
Oh, and apparently I forgot to upload the source code for the third chapter. I have uploaded it now 