图形学实验01

在自己电脑上我用的是VS2019
OpenGL配置点这里

画三角形的代码：

#include  //需要正确安装GLUT，安装方法如预备知识中所述

void myDisplay(void)

{
	//glClearColor(0.0, 0.0, 0.0, 0.0);
	glClearColor(1.0, 1.0, 1.0, 1.0);
	glClear(GL_COLOR_BUFFER_BIT);

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

	glRectf(-0.5f, -0.5f, 0.5f, 0.5f);//画矩形

	glBegin(GL_TRIANGLES);

	glColor3f(1.0f, 0.0f, 0.0f); glVertex2f(0.0f, 1.0f);

	glColor3f(0.0f, 1.0f, 0.0f); glVertex2f(0.8f, -0.5f);

	glColor3f(0.0f, 0.0f, 1.0f); glVertex2f(-0.8f, -0.5f);

	glEnd();



	glFlush();
}
int main(int argc, char* argv[])
{
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE);
	glutInitWindowPosition(100, 100);
	glutInitWindowSize(400, 400);
	glutCreateWindow("Hello OpenGL!");
	glutDisplayFunc(&myDisplay);
	glutMainLoop();
	return 0;
}