Question

怎么在MFC调用opengl的一个函数

GLfloat a = 1 / (2-2*cos(72*Pi/180));
GLfloat bx = a * cos(18 * Pi/180);
GLfloat by = a * sin(18 * Pi/180);
GLfloat cy = -a * cos(18 * Pi/180);
GLfloat
PointA[2] = { 0, a },
PointB[2] = { bx, by },
PointC[2] = { 0.5, cy },
PointD[2] = { -0.5, cy },
PointE[2] = { -bx, by };

glClear(GL_COLOR_BUFFER_BIT);
// 按照A->C->E->B->D->A的顺序，可以一笔将五角星画出
glBegin(GL_LINE_LOOP);
glVertex2fv(PointA);
glVertex2fv(PointC);
glVertex2fv(PointE);
glVertex2fv(PointB);
glVertex2fv(PointD);
glEnd();
glFlush();

Answer 1

你看看微软的例子

http://archive.msdn.microsoft.com/Project/Download/FileDownload.aspx?ProjectName=vcsamplesmfc&DownloadId=9722

绘制的部分在void CCubeView::DrawScene(void)里，原来的例子画了个CUBE，你就画你想画的就行了，不知道上面的链接能不能用，所以我带个附件给你，就是那个例子