U
Size: a a a
U
NK
NK
BD
U
U
glBegin(GL_QUADS);
glTexCoord2f(0.f, 0.f); glVertex2i(-1, -1);
glTexCoord2f(1.f, 0.f); glVertex2i(1, -1);
glTexCoord2f(1.f, 1.f); glVertex2i(1, 1);
glTexCoord2f(0.f, 1.f); glVertex2i(-1, 1);
glEnd();
U
U
A
glEnable(GL_TEXTURE_2D);
glBindTexture(tex_id);U
U
U
SE
A
SE
U
A
U