Specifying Texture Maps

Step 3: Generate mipmaps and load the texure. You can use glTexImage2D directly, but it's much simpler to use gluBuild2DMipmaps

        gluBuild2DMipmaps(GL_TEXTURE_2D,
                          GL_RGB,
                          width, height,
                          GL_RGB, GL_UNSIGNED_BYTE,
                          mytextureimage);

Fancier features: you can set various parameters about how this texture will be used:

        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
        glTexParameterf(GL_TEXTURE_2D, GL_MAG_FILTER, GL_LINEAR);
        glTexParameterf(GL_TEXTURE_2D, GL_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
        glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
        glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);