谁能讲解mfc这段代码，实在看不懂
void CCubeView::DrawScene(void){ static BOOL bBusy = FALSE; static GLfloat wAngleY = 10.0f; static GLfloat wAngleX = 1.0f; static GLfloat wAngleZ = 5.0f; if(bBusy) return; bBusy = TRUE; glClearColor(0.0f, 0.0f, 0.0f, 1.0f); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); glTranslatef(0.0f, 0.0f, -m_fRadius); glRotatef(wAngleX, 1.0f, 0.0f, 0.0f); glRotatef(wAngleY, 0.0f, 1.0f, 0.0f); glRotatef(wAngleZ, 0.0f, 0.0f, 1.0f); wAngleX += 1.0f; wAngleY += 10.0f; wAngleZ += 5.0f; glBegin(GL_QUAD_STRIP); glColor3f(1.0f, 0.0f, 1.0f); glVertex3f(-0.5f, 0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glColor3f(1.0f, 1.0f, 1.0f); glVertex3f(0.5f, 0.5f, 0.5f); glColor3f(1.0f, 1.0f, 0.0f); glVertex3f(0.5f, -0.5f, 0.5f); glColor3f(0.0f, 1.0f, 1.0f); glVertex3f(0.5f, 0.5f, -0.5f); glColor3f(0.0f, 1.0f, 0.0f); glVertex3f(0.5f, -0.5f, -0.5f); glColor3f(0.0f, 0.0f, 1.0f); glVertex3f(-0.5f, 0.5f, -0.5f); glColor3f(0.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, -0.5f); glColor3f(1.0f, 0.0f, 1.0f); glVertex3f(-0.5f, 0.5f, 0.5f); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glEnd(); glBegin(GL_QUADS); glColor3f(1.0f, 0.0f, 1.0f); glVertex3f(-0.5f, 0.5f, 0.5f); glColor3f(1.0f, 1.0f, 1.0f); glVertex3f(0.5f, 0.5f, 0.5f); glColor3f(0.0f, 1.0f, 1.0f); glVertex3f(0.5f, 0.5f, -0.5f); glColor3f(0.0f, 0.0f, 1.0f); glVertex3f(-0.5f, 0.5f, -0.5f); glEnd(); glBegin(GL_QUADS); glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, 0.5f); glColor3f(1.0f, 1.0f, 0.0f); glVertex3f(0.5f, -0.5f, 0.5f); glColor3f(0.0f, 1.0f, 0.0f); glVertex3f(0.5f, -0.5f, -0.5f); glColor3f(0.0f, 0.0f, 0.0f); glVertex3f(-0.5f, -0.5f, -0.5f); glEnd(); glPopMatrix(); glFinish(); SwapBuffers(wglGetCurrentDC()); bBusy = FALSE;}