OpenGL三维与光照
#include<windows.h>
#include<gl/glut.h>
#include<gl/gl.h>
#include<gl/glu.h> //参数指定正方形的位置和大小
GLfloat x1=100.0f;
GLfloat y1=150.0f;
GLsizei rsize=; //正方形运动变化的步长
GLfloat xstep=1.0f;
GLfloat ystep=1.0f; //窗口的大小
GLfloat windowWidth;
GLfloat windowHeight; //画的物体
void DrawDUA();
void DrawTR(); //属性开关
void SunShine(void);//光照 //三维
GLfloat rtri;
GLfloat rquad; //开关
BOOL Draw3D=true;//三维动画演示开关
BOOL Draw2D=false;//二维动画演示开关
BOOL DrawAtoms=false;//原子动画演示开关 //三维属性开关
BOOL AS=true;//透视投影开关
BOOL OR=false;//正交平行投影
BOOL LIGHT=true;//光照开关 void RenderScene(void)
{
if(Draw3D)
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if(LIGHT)
SunShine(); glTranslatef(-1.5f,0.0f,-6.0f);
glRotatef(rtri,0.0f,1.0f,0.0f); DrawTR(); glLoadIdentity();
glTranslatef(1.5f,0.0f,-6.0f);
glRotatef(rquad,1.0f,0.0f,0.0f);
glColor3f(0.5f,0.5f,1.0f); DrawDUA(); rtri+=1.0f;
rquad-=0.5f;
} if(Draw2D)
{
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0f,0.0f,0.0f);
glRectf(x1,y1,x1+rsize,y1+rsize);
} if(DrawAtoms)
{
//绕核旋转角度
static float fElect1=0.0f; glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); //重置模型视图矩阵
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if(LIGHT)
SunShine(); //将图形沿Z轴负向移动
glTranslatef(0.0f,0.0f,-250.0f); //绘制红色原子核
glColor3f(1.0f,0.0f,0.0f);
glutWireSphere(10.0f,,); //绘制颜色变成绿色
glColor3f(0.0f,1.0f,0.0f); //绘制第一个电子
//保存当前的模型视图矩阵
glPushMatrix();
glRotatef(fElect1,0.0f,1.0f,0.0f);//绕y轴旋转一定角度
glTranslatef(90.0f,0.0f,0.0f);//平移一段距离
glutSolidSphere(6.0f,,);//画出电子 //恢复矩阵
glPopMatrix();
glColor3f(0.0f,0.0f,1.0f);//绘制颜色变成蓝色
//第二个电子
glPushMatrix();
glRotatef(45.0f,0.0f,0.0f,1.0f);
glRotatef(fElect1,0.0f,1.0f,0.0f);
glTranslatef(-70.0f,0.0f,0.0f);
glutSolidSphere(6.0f,,);
glPopMatrix(); glColor3f(1.0f,1.0f,0.0f);//绘制颜色变成黄色
//第三个电子
glPushMatrix();
glRotatef(-45.0f,0.0f,0.0f,1.0f);
glRotatef(fElect1,0.0f,1.0f,0.0f);
glTranslatef(0.0f,0.0f,60.0f);
glutSolidSphere(6.0f,,);
glPopMatrix();
fElect1+=10.0f;
if(fElect1>360.0f)
fElect1=10.0f;
}
glutSwapBuffers();
} void ChangeSize(GLsizei w,GLsizei h)
{
if(h==)
h==; //设置视区尺寸
glViewport(,,w,h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity(); if(Draw3D||DrawAtoms)
{
//修剪空间(透视投影)
if(AS)
{
GLfloat fAspect;
fAspect =(float)w/(float)h;
gluPerspective(45.0,fAspect,1.0,500.0);
} //(正交平行投影)
if(OR)
{
if(w<=h)
glOrtho(-2.25,2.25,-2.25*h/w,2.25*h/w,-10.0,10.0);
else
glOrtho(-2.25*h/w,2.25*h/w,-2.25,2.25,-10.0,10.0);
} } if(Draw2D)
{
if(w<=h)
{
windowHeight=250.0f*h/w;
windowWidth=250.0f;
}
else
{
windowWidth=250.0f*w/h;
windowHeight=250.0f;
} glOrtho(0.0f,windowWidth,0.0f,windowHeight,1.0f,-1.0f);
} glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
} void TimerFunction(int value)
{
if(x1>windowWidth-rsize||x1<)
xstep=-xstep;
if(y1>windowHeight-rsize||y1<)
ystep=-ystep; x1+=xstep;
y1+=ystep; glutPostRedisplay();
glutTimerFunc(,TimerFunction,);
} void SetupRC(void)
{
if(Draw3D||DrawAtoms)
{
glEnable(GL_DEPTH_TEST);//启用深度测试
glFrontFace(GL_CCW);
}
glClearColor(0.0f,0.0f,1.0f,1.0f);
}
void TimerFunc(int value)
{
glutPostRedisplay();
if(Draw3D)
{
glutTimerFunc(,TimerFunc,);
}
if(DrawAtoms)
{
glutTimerFunc(,TimerFunc,);
} }
int main(int argc,char* argv[])
{
if(Draw2D)
{
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB);
glutCreateWindow("Bounce");
glutDisplayFunc(RenderScene);
glutReshapeFunc(ChangeSize);
glutTimerFunc(,TimerFunction,);
}
if(Draw3D||DrawAtoms)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH);
glutCreateWindow("原子示例");
glutReshapeFunc(ChangeSize);
glutDisplayFunc(RenderScene);
if(DrawAtoms)
glutTimerFunc(,TimerFunc,);
else
glutTimerFunc(,TimerFunc,);
} SetupRC();
glutMainLoop();
}
void DrawTR()
{
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,1.0f); glColor3f(0.0f,0.0f,1.0f);
glVertex3f(1.0f,-1.0f,1.0f); //
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(0.0f,1.0f,0.0f); glColor3f(0.0f,0.0f,1.0f);
glVertex3f(1.0f,-1.0f,1.0f); glColor3f(0.0f,1.0f,0.0f);
glVertex3f(1.0f,-1.0f,-1.0f); //
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,-1.0f); glColor3f(0.0f,0.0f,1.0f);
glVertex3f(-1.0f,-1.0f,-1.0f); //
glColor3f(1.0f,0.0f,0.0f);
glVertex3f(0.0f,1.0f,0.0f); glColor3f(0.0f,0.0f,1.0f);
glVertex3f(-1.0f,-1.0f,-1.0f); glColor3f(0.0f,1.0f,0.0f);
glVertex3f(-1.0f,-1.0f,1.0f); glEnd();
} void DrawDUA()
{
glBegin(GL_QUADS); glColor3f(0.0f,1.0f,0.0f);
glVertex3f(1.0f,1.0f,-1.0f);
glVertex3f(-1.0f,1.0f,-1.0f);
glVertex3f(-1.0f,1.0f,1.0f);
glVertex3f(1.0f,1.0f,1.0f); glColor3f(1.0f,0.5f,0.0f);
glVertex3f(1.0f,-1.0f,1.0f);
glVertex3f(-1.0f,-1.0f,1.0f);
glVertex3f(-1.0f,-1.0f,-1.0f);
glVertex3f(1.0f,-1.0f,-1.0f); glColor3f(1.0f,0.0f,0.0f);
glVertex3f(1.0f,1.0f,1.0f);
glVertex3f(-1.0f,1.0f,1.0f);
glVertex3f(-1.0f,-1.0f,1.0f);
glVertex3f(1.0f,-1.0f,1.0f); glColor3f(1.0f,1.0f,0.0f);
glVertex3f(1.0f,-1.0f,-1.0f);
glVertex3f(-1.0f,-1.0f,-1.0f);
glVertex3f(-1.0f,1.0f,-1.0f);
glVertex3f(1.0f,1.0f,-1.0f); glColor3f(0.0f,0.0f,1.0f);
glVertex3f(-1.0f,1.0f,1.0f);
glVertex3f(-1.0f,1.0f,-1.0f);
glVertex3f(-1.0f,-1.0f,-1.0f);
glVertex3f(-1.0f,-1.0f,1.0f);
glEnd();
} void SunShine(void)
{ GLfloat sun_light_position[]={0.0f,0.0f,0.0f,1.0f};
GLfloat sun_light_ambient[]={0.0f,0.0f,0.0f,1.0f};
GLfloat sun_light_diffuse[]={1.0f,1.0f,1.0f,1.0f};
GLfloat sun_light_specular[]={1.0f,1.0f,1.0f,1.0f}; glLightfv(GL_LIGHT0,GL_POSITION,sun_light_position);
glLightfv(GL_LIGHT0,GL_AMBIENT,sun_light_ambient);
glLightfv(GL_LIGHT0,GL_DIFFUSE,sun_light_diffuse);
glLightfv(GL_LIGHT0,GL_SPECULAR,sun_light_specular); glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);
glEnable(GL_DEPTH_TEST);
}
OpenGL三维与光照的更多相关文章
- OpenGL中的光照技术（翻译）
Lighting:https://www.evl.uic.edu/julian/cs488/2005-11-03/index.html 光照 OpenGL中的光照(Linghting)是很重要的,为什 ...
- Qt OpenGL三维绘图
简介 OpenGL是为三维绘图提供的标准应用编程接口. OpenGL处理的仅仅是三维绘图方面,而很少或是根本不提供图形用户界面编程方面的支持.OpenGL*应用程序的用户界面必须由其它工具包创建,比 ...
- Linux OpenGL 实践篇-6 光照
经典光照模型 经典光照模型通过单独计算光源成分得到综合光照效果,然后添加到物体表面特定点,这些成分包括:环境光.漫反射光.镜面光. 环境光:是指不是来特定方向的光,在经典光照模型中基本是个常量. 漫反 ...
- 基于OpenGL三维软件开发
实验原理: OpenGL在MFC下编程原理---- Windows操作系统对OpenGL的支持 在Windows下用GDI作图必须通过设备上下文(DeviceContext简写DC)调用相应的函数:用 ...
- OpenGL三维镂垫
2015-12-12帮舍友尝试这个代码的时候发现舍友的会出现No GLSL support 后来发现舍友的版本2.0.2.1才能用 舍友的是glutInitContextVersion(3, 1);改 ...
- [图形学] Chp10 OpenGL三维观察程序示例
10.10节书中给出了一个程序示例,有一个填充正方形,从侧面的角度观察并画到屏幕上. 图0 这里进一步画出一个立方体,将相机放入立方体中心,旋转相机,达到在立方体中旋转看到不同画面的效果. 步骤: 1 ...
- OpenGL ES2.0光照
一.简单光照原理 平行光(正常光) 光照效果= 环境颜色 + 漫反射颜色 + 镜面反射颜色 点光源 光照效果= 环境颜色 + (漫反射颜色 + 镜面反射颜色)× 衰减因子 聚光灯 光照效果= ...
- OpenGL——三维多面体实现
#include<iostream> #include <math.h> #include<Windows.h> #include <GL/glut.h> ...
- 三维投影总结：数学原理、投影几何、OpenGL教程、我的方法
如果要得到pose视图,除非有精密的测量方法,否则进行大量的样本采集时很耗时耗力的.可以采取一些取巧的方法,正如A Survey on Partial of 3d shapes,描述的,可以利用已得到 ...
随机推荐
- FSCapture注册码
企业版序列号: name:bluman serial/序列号/注册码:VPISCJULXUFGDDXYAUYF
- IPC学习
课下作业-IPC 要求: 研究Linux下IPC机制:原理,优缺点,每种机制至少给一个示例,提交研究博客的链接 共享内存 管道 FIFO 信号 消息队列 共享内存 共享内存可以说是最有用的进程间通信方 ...
- # 课下测试补交（ch01）20155337
课下测试补交(ch01) 1.Amdahl定律说明,我们对系统的某个部分做出重大改进,可以显著获得一个系统的加速比.(B) A .正确 B .错误 解析:Amdahl定律,该定律的主要思想是,当我们对 ...
- WPF 学习笔记－设置属性使窗口不可改变大小
原文:WPF 学习笔记-设置属性使窗口不可改变大小 调整Windows下的ResizeMode属性: ResizeMode = NoResize Resize属性是控制Windows是否可以改变大小, ...
- Kubernetes学习之路（十四）之服务发现Service
一.Service的概念 运行在Pod中的应用是向客户端提供服务的守护进程,比如,nginx.tomcat.etcd等等,它们都是受控于控制器的资源对象,存在生命周期,我们知道Pod资源对象在自愿或非 ...
- python面试题(二)
最近参加了几场招聘,发现好多人的一些基础知识不是很扎实,做的题很多都是错误的,因此找了一些我们公司面试过程中的一些最基本的面试题供大家参考,希望各位都能找到一个好的工作.今天给大家先分享的是关于Pyt ...
- Design2：使用HierarchyID构建数据的分层结构
1,传统的分层结构是父子结构,表结构中有一个ParentID字段自引用表的主键,表示“归属”关系,例如 create table dbo.emph ( ID int not null primary ...
- 第四节：Windows系统安装时BIOS设置及注意
BIOS系统 BIOS是英文"Basic Input Output System"的缩略词,直译过来后中文名称就是"基本输入输出系统".在IBM PC兼容系统上 ...
- Docker容器的启动与停止
启动docker:systemctl start docker 停止docker:systemctl stop docker 重启docker:systemctl restart docker 查看d ...
- HotSpot JVM 常用配置设置
本文讨论的选项是针对HotSpot虚拟机的. 1.选项分类及语法 HotspotJVM提供以下三大类选项: 1.1.标准选项 这类选项的功能是很稳定的,在后续版本中也不太会发生变化. 运行java或者 ...