我使用向量来存储顶点和法线数据
vector<float> vertex;
vector<float> normal;
例如:
normal.push_back(-1);
normal.push_back(0);
normal.push_back(0);
vertex.push_back(BARRIER_RADIUS);
vertex.push_back(POLE_HEIGHT);
vertex.push_back(-POLE_RADIUS);
for (int i = POLE_POINTS, i >= 0; i--)
{
//add more vertex
}
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, &vertex[0]);
glNormalPointer(GL_FLOAT, 0, &normal[0]);
glDrawArrays(GL_TRIANGLE_FAN, 0, vertex.size());
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
//Add some more + Draw some thing else the same way
我从中得到的什么都不是。它不会在屏幕上绘制任何内容。
以前的版本有效,如下所示:
glNormal3f(-1, 0, 0);
glBegin(GL_TRIANGLE_FAN);
glVertex3f(BARRIER_RADIUS, POLE_HEIGHT, -POLE_RADIUS);
for ()
{
//add more vertex
glVertex3f(........);
}
glEnd();
//draw more the same way
指出我哪里出错了。