OpenGL绘制基本三维图形

主要是库函数的调用，后期加上光照渲染会更好。

 代码：

#include <windows.h>
#ifdef __APPLE__
#include <GLUT/glut.h>
#else
#include <GL/glut.h>
#endif
#include <bits/stdc++.h>
using namespace std;
#include <stdlib.h>
static GLsizei iMode = 1;
static GLfloat xRot = 0;
static GLfloat yRot = 0;
GLUquadricObj *obj;
void Initial(){
glClearColor(1, 1, 1, 1);
glColor3f(0, 0, 0);
obj = gluNewQuadric();
gluQuadricDrawStyle(obj, GLU_LINE);
}
void ChangeSize(int w, int h){
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(-1.5, 1.5, -1.5, 1.5);
}
void Display(){
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glRotatef(xRot, 1, 0, 0);
glRotatef(yRot, 0, 1, 0);
switch(iMode){
case 1:
glutWireTetrahedron(); break;
case 2:
glutSolidTetrahedron(); break;
case 3:
glutWireOctahedron(); break;
case 4:
glutSolidOctahedron(); break;
case 5:
glutWireSphere(1, 15, 15); break;
case 6:
glutSolidSphere(1, 15, 15); break;
case 7:
glutWireTeapot(1); break;
case 8:
glutSolidTeapot(1); break;
case 9:
gluSphere(obj, 1, 15, 15); break;
case 10:
gluCylinder(obj, 1, 0, 1, 15, 15); break;
case 11:
gluPartialDisk(obj, 0.3, 0.8, 15, 15, 30, 260); break;
default: break;
}
glFlush();
}
void ProcessMenu(int value){
iMode = value;
glutPostRedisplay();
}
void SpecialKeys(int key, int x, int y){
if(key == GLUT_KEY_UP) xRot -= 5;
if(key == GLUT_KEY_DOWN) xRot += 5;
if(key == GLUT_KEY_LEFT) yRot -= 5;
if(key == GLUT_KEY_RIGHT) yRot += 5;
if(xRot > 356) xRot = 0;
if(xRot < -1) xRot = 355;
if(yRot > 356) yRot = 0;
if(yRot < -1) yRot = 355;
glutPostRedisplay();
}
int main(int argc, char** argv){
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(400, 400);
glutInitWindowPosition(100, 100);
glutCreateWindow("Hello");
int nGlutPolyMenu = glutCreateMenu(ProcessMenu);
glutAddMenuEntry("线框正四面体", 1);
glutAddMenuEntry("实体正四面体", 2);
glutAddMenuEntry("线框正八面体", 3);
glutAddMenuEntry("实体正八面体", 4);
int nGlutCurveMenu = glutCreateMenu(ProcessMenu);
glutAddMenuEntry("线框球面", 5);
glutAddMenuEntry("实体球面", 6);
glutAddMenuEntry("线框茶壶", 7);
glutAddMenuEntry("实体茶壶", 8);
int nGluCurveMenu = glutCreateMenu(ProcessMenu);
glutAddMenuEntry("线框球面", 9);
glutAddMenuEntry("线框圆锥面", 10);
glutAddMenuEntry("线框圆环面", 11);
int nMainMenu = glutCreateMenu(ProcessMenu);
glutAddSubMenu("GLUT多面体", nGlutPolyMenu);
glutAddSubMenu("GLUT曲面", nGlutCurveMenu);
glutAddSubMenu("GLU曲面", nGluCurveMenu);
glutAttachMenu(GLUT_RIGHT_BUTTON);
glutDisplayFunc(Display);
glutReshapeFunc(ChangeSize);
glutSpecialFunc(SpecialKeys);
Initial();
glutMainLoop();
}

效果

最后

以上就是单身冰棍为你收集整理的OpenGL绘制基本三维图形的全部内容，希望文章能够帮你解决OpenGL绘制基本三维图形所遇到的程序开发问题。

如果觉得靠谱客网站的内容还不错，欢迎将靠谱客网站推荐给程序员好友。