我使用OpenGL绘制凸多边形。然后我做同样的事情,但使用GL_LINE_LOOP。 我遇到的问题是线路并不总是连接在一起。我怎样才能确保线路始终连接?使用OpenGL绘制连接的线
在下面的照片中,Iv以绿色突出显示,连接的角落和红色的,不是那些。我希望他们都像绿色的。
http://img249.imageshack.us/i/notconnected.png/
感谢
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
x ++;
glLineWidth(50.0);
glPushMatrix();
glTranslatef(250,250,0);
glBegin(GL_POLYGON); //Begin quadrilateral coordinates
//Trapezoid
glColor3f(255,0,0);
glVertex2f(-10,0);
glVertex2f(50,0);
glColor3f(255,100,0);
glVertex2f(100,50);
glVertex2f(mouse.x - 250,mouse.y - 250);
glVertex2f(-30,50);
glEnd(); //End quadrilateral coordinates
glBegin(GL_LINE_LOOP); //Begin quadrilateral coordinates
//Trapezoid
glColor3f(0,0,255);
glVertex2f(-10,0);
glVertex2f(50,0);
glVertex2f(100,50);
glVertex2f(mouse.x - 250,mouse.y - 250);
glVertex2f(-30,50);
glEnd(); //End quadrilateral coordinates
glPopMatrix();
glBegin(GL_QUADS); //Begin quadrilateral coordinates
glVertex2f(0,0);
glColor3f(0,255,0);
glVertex2f(150,0);
glVertex2f(150,150);
glColor3f(255,0,0);
glVertex2f(0,150);
glEnd(); //End quadrilateral coordinates
请发布您使用的代码来完成图纸 – alexbw 2010-05-02 19:27:54
听起来像您的指示不正确 – Robb 2010-05-02 19:33:45
我不觉得我在那个问题上很清楚 – jmasterx 2010-05-02 19:40:41