QT5-三维

//三维glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glLoadIdentity();glTranslatef(-1.5, 0.0, -6.0);glRotatef(rTri, 0.0, 1.0, 0.0);glBegin(GL_TRIANGLES);//前侧面glColor3f(1.0, 0.0, 0.0);glVertex3f(0.0, 1.0, 0.0);glColor3f(0.0, 1.0, 0.0);glVertex3f(-1.0, -1.0, 1.0);glColor3f(0.0, 0.0, 1.0);glVertex3f(1.0, -1.0, 1.0);//右侧面glColor3f(1.0, 0.0, 0.0);glVertex3f(0.0, 1.0, 0.0);glColor3f(0.0, 0.0, 1.0);glVertex3f(1.0, -1.0, 1.0);glColor3f(0.0, 1.0, 0.0);glVertex3f(1.0, -1.0, -1.0);//后侧面glColor3f(1.0, 0.0, 0.0);glVertex3f(0.0, 1.0, 0.0);glColor3f(0.0, 1.0, 0.0);glVertex3f(1.0, -1.0, -1.0);glColor3f(0.0, 0.0, 1.0);glVertex3f(-1.0, -1.0, -1.0);//左侧面glColor3f(1.0, 0.0, 0.0);glVertex3f(0.0, 1.0, 0.0);glColor3f(0.0, 0.0, 1.0);glVertex3f(-1.0, -1.0, -1.0);glColor3f(0.0, 1.0, 0.0);glVertex3f(-1.0, -1.0, 1.0);glEnd();rTri += 1.2;//底面glBegin(GL_QUADS);glColor3f(0.0, 1.0, 0.0);glVertex3f(1.0, -1.0, 1.0);glColor3f(0.0, 0.0, 1.0);glVertex3f(1.0, -1.0, -1.0);glColor3f(0.0, 0.0, 1.0);glVertex3f(-1.0, -1.0, -1.0);glColor3f(0.0, 1.0, 0.0);glVertex3f(-1.0, -1.0, 1.0);glEnd();//立方体glLoadIdentity();glTranslatef(1.5, 0.0, -7.0);glRotatef(rQuad,1.0,1.0,1.0);#define f1 1.0, 1.0, 1.0#define f2 -1.0, 1.0, 1.0#define f3 -1.0, -1.0, 1.0#define f4 1.0, -1.0, 1.0#define b1 -1.0, 1.0, -1.0#define b2 1.0, 1.0, -1.0#define b3 1.0, -1.0, -1.0#define b4 -1.0, -1.0, -1.0glBegin(GL_QUADS);//正侧面glColor3f(1.0, 0.0, 0.0);glVertex3f(f1);glVertex3f(f2);glVertex3f(f3);glVertex3f(f4);void setpoint(int o1, int p1, int q1,int o2, int p2, int q2,int o3, int p3, int q3,int o4, int p4, int q4);//右侧面glColor3f(1.0,0.5, 0.0);setpoint(b2, f1, f4, b3);//其实就是按顺序glVertex3f（）四个点//后侧面glColor3f(0.0, 1.0, 1.0);setpoint(b1, b2, b3, b4);//左侧面glColor3f(0.0, 0.5, 1.0);setpoint(f2, b1, b4, f3);//上底面面glColor3f(0.0, 0.0, 1.0);setpoint(b2, b1, f2, f1);//下底面glColor3f(0.0, 1.0, 0.0);setpoint(b4, b3, f4, f3);glEnd();rQuad -= 1.0;

还是修改paintGL（）三维就是把立方体的几个面都画出来，画面的时候注意逆时针开始画（画的顺序要一致），面的连接点要注意一致