opengl 旋转的立方体

dfkjsdhfks 2009-08-31 08:01:17

才刚学opengl不久，还有很多地方不清楚，所以正一边练习一边自学，还请各位高手讲解时能详细一点。
我想写一个基于MFC的旋转的立方体程序，加入了如下代码：



	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);	// Clear Screen And Depth Buffer

	glLoadIdentity();									// Reset The Current Modelview Matrix

	

	

//NEW//////////////////NEW//////////////////NEW//////////////////NEW////////////////



//	glTranslatef(0.0f, 0.0f,0.0f);						// Translate Into The Screen 7.0 Units

	glRotatef(m_rotate,0.0f,1.0f,0.0f);					// Rotate The cube around the Y axis

	glRotatef(m_rotate,1.0f,1.0f,1.0f);	

	glScalef(0.5,0.5,0.5);			

	glBegin(GL_QUADS);									// Draw a cube with quads

		glColor3f(0.0f,1.0f,0.0f);						// Color Blue

		glVertex3f( 1.0f, 1.0f,-1.0f);					// Top Right Of The Quad (Top)

		glVertex3f(-1.0f, 1.0f,-1.0f);					// Top Left Of The Quad (Top)

		glVertex3f(-1.0f, 1.0f, 1.0f);					// Bottom Left Of The Quad (Top)

		glVertex3f( 1.0f, 1.0f, 1.0f);					// Bottom Right Of The Quad (Top)

		glColor3f(1.0f,0.5f,0.0f);						// Color Orange

		glVertex3f( 1.0f,-1.0f, 1.0f);					// Top Right Of The Quad (Bottom)

		glVertex3f(-1.0f,-1.0f, 1.0f);					// Top Left Of The Quad (Bottom)

		glVertex3f(-1.0f,-1.0f,-1.0f);					// Bottom Left Of The Quad (Bottom)

		glVertex3f( 1.0f,-1.0f,-1.0f);					// Bottom Right Of The Quad (Bottom)

		glColor3f(1.0f,0.0f,0.0f);						// Color Red

		glVertex3f( 1.0f, 1.0f, 1.0f);					// Top Right Of The Quad (Front)

		glVertex3f(-1.0f, 1.0f, 1.0f);					// Top Left Of The Quad (Front)

		glVertex3f(-1.0f,-1.0f, 1.0f);					// Bottom Left Of The Quad (Front)

		glVertex3f( 1.0f,-1.0f, 1.0f);					// Bottom Right Of The Quad (Front)

		glColor3f(1.0f,1.0f,0.0f);						// Color Yellow

		glVertex3f( 1.0f,-1.0f,-1.0f);					// Top Right Of The Quad (Back)

		glVertex3f(-1.0f,-1.0f,-1.0f);					// Top Left Of The Quad (Back)

		glVertex3f(-1.0f, 1.0f,-1.0f);					// Bottom Left Of The Quad (Back)

		glVertex3f( 1.0f, 1.0f,-1.0f);					// Bottom Right Of The Quad (Back)

		glColor3f(0.0f,0.0f,1.0f);						// Color Blue

		glVertex3f(-1.0f, 1.0f, 1.0f);					// Top Right Of The Quad (Left)

		glVertex3f(-1.0f, 1.0f,-1.0f);					// Top Left Of The Quad (Left)

		glVertex3f(-1.0f,-1.0f,-1.0f);					// Bottom Left Of The Quad (Left)

		glVertex3f(-1.0f,-1.0f, 1.0f);					// Bottom Right Of The Quad (Left)

		glColor3f(1.0f,0.0f,1.0f);						// Color Violet

		glVertex3f( 1.0f, 1.0f,-1.0f);					// Top Right Of The Quad (Right)

		glVertex3f( 1.0f, 1.0f, 1.0f);					// Top Left Of The Quad (Right)

		glVertex3f( 1.0f,-1.0f, 1.0f);					// Bottom Left Of The Quad (Right)

		glVertex3f( 1.0f,-1.0f,-1.0f);					// Bottom Right Of The Quad (Right)

	glEnd();											// End drawing cube with quads

	glFlush();

	m_rotate +=(float)0.9f;