To learn the basics of texture mapping
To create a box with 6 images on each side
This lab is to illustrate how you can bring images into your drawings
using texture mapping. Before we start the lab, you need the following.
Step 1: Preparing Images
Create a directory lab6, then directory Data inside of it for the images. You need six images for the six sides of the cube. Of course, they all can be the same, but if you decide to have them different, you need six images. These images must be of size 256-by-256 in .bmp format. You can use other size image, but for now, let's make that a standard. You can use the PaintShop Pro, Adobe PhotoShop, or Unix-based xv software to change the size of the images you have or save them in the correct format.
Here is the list of the images that I have copied in jpg format from the ASU server.
As you may have noticed these images are not 256x256 size. You can use
one of the software packages mentioned above to resize them. For testing
of the code that is giving below, I have saved a 256x256 image with 6 different
names. Image 1: crate, Image 2: face, Image 3: hacker,
Image 4: shell, Image 5: sniper, Image 6: whirl.
All images must be stored in the directory Data under lab6 for the program
to work correctly.
Step 2: VC++ Preparations
Make sure you are under the lab6 directory. We will use a program to create the box with 6 images on its sides. Then we will rotate the box to see all sides. In order to correctly do this, you need to follow these steps very closely:
1) Open VC++
2) Under File--> New, select win32 applications, and give a name to your program, text_cube, and follow the next few screens and keep the defaults.
3) Then again under File--> New ... C++ Source, give the same name as above for the file name, text_cube, then ok. In the blank screen copy and paste the following code text_cube.cpp. NOTE: Please do NOT save the file as it is, cut and paste the content of the file into the blank screen in VC++ instead.
4) Compile the program, you shouldn't have any error. If you do, wait and we will fix it before we go further.
5) Under setting and the to the link: glu32.lib opengl32.lib and glaux.lib.
6) With this your program should run.
Now you can modify the images that you wish to include and also automate
the process so that is rotates and/or bounces in a random fashion. Then
create an executable file that can be used as an screen saver.