OpenGL学习四：矢量图形添加颜色

1.分别给点进行添加颜色

glBegin(GL_TRIANGLES);

glColor3f(1.0f,0.0f,0.0f);

glVertex3f( 0.0f, 1.0f, 0.0f);

glColor3f(0.0f,1.0f,0.0f);

glVertex3f(-1.0f,-1.0f, 0.0f);

glColor3f(0.0f,0.0f,1.0f);

glVertex3f( 1.0f,-1.0f, 0.0f);

glEnd();

2.为图形整体添加颜色

glColor3f(0.5f,0.5f,1.0f);

glBegin(GL_QUADS);

glVertex3f(-1.0f, 1.0f, 0.0f);

glVertex3f( 1.0f, 1.0f, 0.0f);

glVertex3f( 1.0f,-1.0f, 0.0f);

glVertex3f(-1.0f,-1.0f, 0.0f);

glEnd();