OpenGL 直线抗锯齿后呈虚线状

zsdt345a780rfajwet 2013-01-18 01:10:52

如题！怎么才能正常的抗锯齿呢？求助各位大神啊！！

相关代码部分



int CSubject::glDraw3D()

{

	glColor3d(1.0f,1.0f,1.0f);

	if(m_pDev)//画直线，使平滑，加入了混合

	{

		glEnable(GL_LINE_SMOOTH);//只有这两句的时候，感觉锯齿还是很明显

		glHint(GL_LINE_SMOOTH_HINT,GL_NICEST);

		glLineWidth(3.0f);

		glEnable(GL_BLEND);//加了这两句后，变成了虚线

		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

		glBegin(GL_LINE_STRIP);	

			for(int i=0;i<m_pDev->GetCount();i++)

			{

				Vertex3d(m_pDev->GetX(i),m_pDev->GetY(i),m_pDev->GetZ(i));

			}

		glEnd();

		DrawText(m_pDev->GetX(0),m_pDev->GetY(0),m_pDev->GetZ(0));

	}

	else//画点，只是平滑

	{



		glPointSize(3.0f);

		glHint(GL_POINT_SMOOTH_HINT,GL_NICEST);

		glEnable(GL_POINT_SMOOTH);

		glBegin(GL_POINTS);//

			Vertex3d(m_headX,m_headY,-2000.0f);

		glEnd();

		DrawText(m_headX,m_headY,-2000.0f);

	}

	//画一个矩形

	glColor3d(1.0f,0.0f,0.0f);

	glBegin(GL_LINE_LOOP);

		Vertex3d(m_LogicWinShare3D.stPt.x,m_LogicWinShare3D.stPt.y,m_LogicWinShare3D.stPt.z);

		Vertex3d(m_LogicWinShare3D.stPt.x + m_LogicWinShare3D.xSpan,m_LogicWinShare3D.stPt.y,m_LogicWinShare3D.stPt.z);

		Vertex3d(m_LogicWinShare3D.stPt.x + m_LogicWinShare3D.xSpan,m_LogicWinShare3D.stPt.y +m_LogicWinShare3D.ySpan,m_LogicWinShare3D.stPt.z);

		Vertex3d(m_LogicWinShare3D.stPt.x,m_LogicWinShare3D.stPt.y +m_LogicWinShare3D.ySpan,m_LogicWinShare3D.stPt.z);

	glEnd();

	glFlush();



	return 0;

}