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分享基于opengl的场景漫游，粒子系统出问题了怎么不下雨啊？求大神指教！！救命啊！！！
#include <windows.h>//windows头文件
#include <math.h>
#include <GL/glu.h>//实用库
#include <gl/glaux.h>
#include <gl/gl.h>
#include <stdio.h>
#include <io.h>
//**************************888888888888888888888888888888888888888
const float p=0.1f; //绘图比例尺 P个单位长度：1米
const float q=0.5f; //移动速度 1次移动q个单位长度
//粒子系统部分
#define MAX_PARTICLES 3000 //粒子数量
#define FADE 2000.0
#define SOURCE 30
bool keys[256]; //键盘数组
bool active=TRUE; //窗口是否最小化标志，缺省为ture
bool sp;
bool rp;
bool bRender = TRUE; // Polygon Flag Set To TRUE By Default (NEW)
float slowdown=2.0f; // 粒子减速
float xspeed; // X初速度
float yspeed; // Y初速度
float zoom=-40.0f; // Used To Zoom Out
GLuint loop; // 循环变量
GLuint col; // 当前颜色
GLuint texture[140]; // 存储粒子的纹理空间
typedef struct // 粒子结构
{
bool active; // 是否活跃
float life; // 粒子生命
float fade; // 褪色速度
float r; // Red
float g; // Green
float b; // Blue
float x; // X Position
float y; // Y Position
float z; // Z Position
float xi; // X Direction
float yi; // Y Direction
float zi; // Z Direction
float xg; // X Gravity
float yg; // Y Gravity
float zg; // Z Gravity
}
particles;
particles particle[MAX_PARTICLES]; //粒子数组
static GLfloat colors[3]={1.0,1.0,1.0}; // Rainbow Of Colors
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); // Declaration For WndProc
AUX_RGBImageRec *LoadBMP(char *Filename) // 读取位图图象
{
FILE *File=NULL; // 文件句柄
if (!Filename) // 确定文件名已给出
{
return NULL; // 如果文件名未给出则返回NULL
}
File=fopen(Filename,"r"); // 检测文件是否存在
if (File) // 文件是否存在?
{
fclose(File); // 关闭文件
return auxDIBImageLoad(Filename); // 读取位图并返回一个指针
}
return NULL; //如果调用文件失败则返回NULL
}
int LoadGLTextures() //调用Bitmap并转换成纹理
{
int Status=FALSE; //状态确定
AUX_RGBImageRec *TextureImage[2]; //为纹理创建存储空间
memset(TextureImage,0,sizeof(void *)*2); //将指针设为NULL
//读取位图，检查错误。如果位图不存在则退出
//粒子的纹理
if (TextureImage[1]=LoadBMP("tupian/rain.bmp")) //创建雨滴纹理
{
Status=TRUE;
glGenTextures(1, &texture[22]);
glBindTexture(GL_TEXTURE_2D, texture[22]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[1]->sizeX, TextureImage[1]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[1]->data);
}
if (TextureImage[0]) //纹理是否存在
{
if (TextureImage[0]->data) //纹理图象是否存在
{
free(TextureImage[0]->data); //释放纹理图象所占用内存
}
free(TextureImage[0]); //释放图象结构
}
if (TextureImage[1])
{
if (TextureImage[1]->data)
{
free(TextureImage[1]->data);
}
free(TextureImage[1]);
}
return Status; //返回Status的值
}
GLvoid ReSizeGLScene(GLsizei width, GLsizei height) //重置opengl窗口大小
{
if (height==0) //防止被零除
{
height=1; //设为1
}
glViewport(0,0,width,height); //重置当前视口
glMatrixMode(GL_PROJECTION); //选择投影矩阵
glLoadIdentity(); //重置投影矩阵
gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,200.0f);//设置视口大小，实现近大远小
glMatrixMode(GL_MODELVIEW); // 选择Modelview Matrix
glLoadIdentity(); // 重置 Modelview Matrix
}
//粒子部分
int InitGL(GLvoid) // 此处开始对OpenGL进行所有设置
{
if (!LoadGLTextures()) // 载入纹理
{
return FALSE;
}
glShadeModel(GL_SMOOTH); // 启用阴影平滑
glClearColor(0.0f,0.0f,0.0f,0.0f); // 黑色背景
glClearDepth(1.0f); // 设置深度缓存
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE);
glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST);// 告诉系统对透视进行修正
glHint(GL_POINT_SMOOTH_HINT,GL_NICEST);
glEnable(GL_TEXTURE_2D);
for (loop=0;loop<MAX_PARTICLES;loop++) // 初始化每个粒子
{
particle[loop].active=true;
particle[loop].life=1.0f;
particle[loop].fade=float(rand()%100)/FADE+0.0025f; // 随机产生淡出速度（用作透明度）
particle[loop].r=colors[0];
particle[loop].g=colors[1];
particle[loop].b=colors[2];
particle[loop].xi=float((rand()%50)-26.0f)*3.0f; // 随机产生X速度
particle[loop].yi=float((rand()%50)-25.0f)*3.0f; // 随机产生Y速度
particle[loop].zi=float((rand()%50)-25.0f)*3.0f; // 随机产生Z速度
particle[loop].xg=0.0f;
particle[loop].yg=-0.8f;
particle[loop].zg=0.0f;
}
return TRUE;
}
//此部分和下边有些重复，待修改**************************************************************************************************************
//int DrawGLScene(GLvoid) // 从这里开始进行所有的绘制
// 绘制场景
//{
//}
//***********************************************************************************************************************************************
//窗口部分
HWND hWnd=NULL; //窗口句柄
HDC hDC=NULL; //设备描述表句柄
HGLRC hRC=NULL; //窗口着色描述句柄
HINSTANCE hInstance; //保存程序实例
RECT rect;
int sw=800; //设定窗口宽度为800
int sh=600; //设定窗口高度为600
const double pi=3.1415926536; //定义常量π
int i=1; //花坛墙循环变量
bool fullscreen=1; //是否全屏
GLfloat aspect;
const float piover180=0.0174532925f; //角度转换到弧度
float heading;
float xpos;
float zpos=7.0f;
//按键部分
GLfloat yup; //y平移|
GLfloat xup; //X平移 --
GLfloat zup; //z平移 --
GLfloat xrot; //x轴旋转
GLfloat yrot; //y轴旋转
//GLfloat walkbias=0; //模拟行走的参数变量
//GLfloat walkbiasangle=0; //模拟行走的参数变量
GLfloat lookupdown=-5.0f;
//GLfloat xspeed; //x轴的旋转速度
//GLfloat yspeed; //y轴的旋转速度
bool goodlight; //路灯开关
bool light; //光源-开关
bool blend; //混合 开关
bool lp; //L键是否按下
//bool fp; //F键是否按下
bool bp; //B键是否按下
GLfloat LightAmbient[]={ 0.5f, 0.5f, 0.5f, 1.0f}; //环境光的值RGBA
GLfloat LightDiffuse[]={ 1.0f, 1.0f, 1.0f, 1.0f}; //散射光的值
GLfloat LightPosition[]={ 0.0f, 0.0f, -p*20.0f, 1.0f}; //光照位置XYZA
GLuint filter; //过滤器的选择
//GLuint texture[140]; //纹理的存储空间共140个纹理空间
#pragma comment( lib, "opengl32.lib") //连接时使用的OpenGL库
#pragma comment( lib, "glu32.lib")
#pragma comment( lib, "glaux.lib")
//读取位图部分
#include <math.h>
#include <GL/glu.h>//实用库
#include <gl/glaux.h>
#include <gl/gl.h>
#include <stdio.h>
#include <io.h>
//**************************888888888888888888888888888888888888888
const float p=0.1f; //绘图比例尺 P个单位长度：1米
const float q=0.5f; //移动速度 1次移动q个单位长度
//粒子系统部分
#define MAX_PARTICLES 3000 //粒子数量
#define FADE 2000.0
#define SOURCE 30
bool keys[256]; //键盘数组
bool active=TRUE; //窗口是否最小化标志，缺省为ture
bool sp;
bool rp;
bool bRender = TRUE; // Polygon Flag Set To TRUE By Default (NEW)
float slowdown=2.0f; // 粒子减速
float xspeed; // X初速度
float yspeed; // Y初速度
float zoom=-40.0f; // Used To Zoom Out
GLuint loop; // 循环变量
GLuint col; // 当前颜色
GLuint texture[140]; // 存储粒子的纹理空间
typedef struct // 粒子结构
{
bool active; // 是否活跃
float life; // 粒子生命
float fade; // 褪色速度
float r; // Red
float g; // Green
float b; // Blue
float x; // X Position
float y; // Y Position
float z; // Z Position
float xi; // X Direction
float yi; // Y Direction
float zi; // Z Direction
float xg; // X Gravity
float yg; // Y Gravity
float zg; // Z Gravity
}
particles;
particles particle[MAX_PARTICLES]; //粒子数组
static GLfloat colors[3]={1.0,1.0,1.0}; // Rainbow Of Colors
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); // Declaration For WndProc
AUX_RGBImageRec *LoadBMP(char *Filename) // 读取位图图象
{
FILE *File=NULL; // 文件句柄
if (!Filename) // 确定文件名已给出
{
return NULL; // 如果文件名未给出则返回NULL
}
File=fopen(Filename,"r"); // 检测文件是否存在
if (File) // 文件是否存在?
{
fclose(File); // 关闭文件
return auxDIBImageLoad(Filename); // 读取位图并返回一个指针
}
return NULL; //如果调用文件失败则返回NULL
}
int LoadGLTextures() //调用Bitmap并转换成纹理
{
int Status=FALSE; //状态确定
AUX_RGBImageRec *TextureImage[2]; //为纹理创建存储空间
memset(TextureImage,0,sizeof(void *)*2); //将指针设为NULL
//读取位图，检查错误。如果位图不存在则退出
//粒子的纹理
if (TextureImage[1]=LoadBMP("tupian/rain.bmp")) //创建雨滴纹理
{
Status=TRUE;
glGenTextures(1, &texture[22]);
glBindTexture(GL_TEXTURE_2D, texture[22]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, 3, TextureImage[1]->sizeX, TextureImage[1]->sizeY, 0, GL_RGB, GL_UNSIGNED_BYTE, TextureImage[1]->data);
}
if (TextureImage[0]) //纹理是否存在
{
if (TextureImage[0]->data) //纹理图象是否存在
{
free(TextureImage[0]->data); //释放纹理图象所占用内存
}
free(TextureImage[0]); //释放图象结构
}
if (TextureImage[1])
{
if (TextureImage[1]->data)
{
free(TextureImage[1]->data);
}
free(TextureImage[1]);
}
return Status; //返回Status的值
}
GLvoid ReSizeGLScene(GLsizei width, GLsizei height) //重置opengl窗口大小
{
if (height==0) //防止被零除
{
height=1; //设为1
}
glViewport(0,0,width,height); //重置当前视口
glMatrixMode(GL_PROJECTION); //选择投影矩阵
glLoadIdentity(); //重置投影矩阵
gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,200.0f);//设置视口大小，实现近大远小
glMatrixMode(GL_MODELVIEW); // 选择Modelview Matrix
glLoadIdentity(); // 重置 Modelview Matrix
}
//粒子部分
int InitGL(GLvoid) // 此处开始对OpenGL进行所有设置
{
if (!LoadGLTextures()) // 载入纹理
{
return FALSE;
}
glShadeModel(GL_SMOOTH); // 启用阴影平滑
glClearColor(0.0f,0.0f,0.0f,0.0f); // 黑色背景
glClearDepth(1.0f); // 设置深度缓存
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE);
glHint(GL_PERSPECTIVE_CORRECTION_HINT,GL_NICEST);// 告诉系统对透视进行修正
glHint(GL_POINT_SMOOTH_HINT,GL_NICEST);
glEnable(GL_TEXTURE_2D);
for (loop=0;loop<MAX_PARTICLES;loop++) // 初始化每个粒子
{
particle[loop].active=true;
particle[loop].life=1.0f;
particle[loop].fade=float(rand()%100)/FADE+0.0025f; // 随机产生淡出速度（用作透明度）
particle[loop].r=colors[0];
particle[loop].g=colors[1];
particle[loop].b=colors[2];
particle[loop].xi=float((rand()%50)-26.0f)*3.0f; // 随机产生X速度
particle[loop].yi=float((rand()%50)-25.0f)*3.0f; // 随机产生Y速度
particle[loop].zi=float((rand()%50)-25.0f)*3.0f; // 随机产生Z速度
particle[loop].xg=0.0f;
particle[loop].yg=-0.8f;
particle[loop].zg=0.0f;
}
return TRUE;
}
//此部分和下边有些重复，待修改**************************************************************************************************************
//int DrawGLScene(GLvoid) // 从这里开始进行所有的绘制
// 绘制场景
//{
//}
//***********************************************************************************************************************************************
//窗口部分
HWND hWnd=NULL; //窗口句柄
HDC hDC=NULL; //设备描述表句柄
HGLRC hRC=NULL; //窗口着色描述句柄
HINSTANCE hInstance; //保存程序实例
RECT rect;
int sw=800; //设定窗口宽度为800
int sh=600; //设定窗口高度为600
const double pi=3.1415926536; //定义常量π
int i=1; //花坛墙循环变量
bool fullscreen=1; //是否全屏
GLfloat aspect;
const float piover180=0.0174532925f; //角度转换到弧度
float heading;
float xpos;
float zpos=7.0f;
//按键部分
GLfloat yup; //y平移|
GLfloat xup; //X平移 --
GLfloat zup; //z平移 --
GLfloat xrot; //x轴旋转
GLfloat yrot; //y轴旋转
//GLfloat walkbias=0; //模拟行走的参数变量
//GLfloat walkbiasangle=0; //模拟行走的参数变量
GLfloat lookupdown=-5.0f;
//GLfloat xspeed; //x轴的旋转速度
//GLfloat yspeed; //y轴的旋转速度
bool goodlight; //路灯开关
bool light; //光源-开关
bool blend; //混合 开关
bool lp; //L键是否按下
//bool fp; //F键是否按下
bool bp; //B键是否按下
GLfloat LightAmbient[]={ 0.5f, 0.5f, 0.5f, 1.0f}; //环境光的值RGBA
GLfloat LightDiffuse[]={ 1.0f, 1.0f, 1.0f, 1.0f}; //散射光的值
GLfloat LightPosition[]={ 0.0f, 0.0f, -p*20.0f, 1.0f}; //光照位置XYZA
GLuint filter; //过滤器的选择
//GLuint texture[140]; //纹理的存储空间共140个纹理空间
#pragma comment( lib, "opengl32.lib") //连接时使用的OpenGL库
#pragma comment( lib, "glu32.lib")
#pragma comment( lib, "glaux.lib")
//读取位图部分
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旅徒冰迹Lucky 2016-11-16
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VC下运行的，我运行也是一堆错误，当时想知道粒子系统怎么运行的就
707wk 2015-06-11
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编译问题请说明编译环境,操作系统
天命王子 2015-06-11
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楼主，你的代码要在什么环境下运行啊，我用VC++运行之后有一大堆错误啊，能否重发一下正确代码。里面有一些OpenGL的函数还不了解惹。
赵4老师 2015-06-08
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搜网络教程“学OpenGL编3D游戏”。
旅徒冰迹Lucky 2015-06-07
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bool ChangeResolution(int w,int h,int bitdepth) //改变屏幕分辨率
{
DEVMODE devMode;
int modeSwitch;
int closeMode=0;
EnumDisplaySettings(NULL, closeMode,&devMode);
devMode.dmBitsPerPel=bitdepth;
devMode.dmPelsWidth=w;
devMode.dmPelsHeight=h;
devMode.dmFields=DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
modeSwitch=ChangeDisplaySettings(&devMode,CDS_FULLSCREEN);
if(modeSwitch==DISP_CHANGE_SUCCESSFUL)
{
return true;
}
else
{
ChangeDisplaySettings(NULL,0);
return false;
}
}
LRESULT CALLBACK WndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam) //消息处理函数
{
switch(message)
{
case WM_CREATE:
GetWindowRect(hWnd,&rect);
sw=rect.right-rect.left;
sh=rect.bottom-rect.top;
SceneResizeViewport(sw,sh);
return 0;
case WM_SIZE:
if(!fullscreen)
{
GetWindowRect(hWnd,&rect);
sw=rect.right-rect.left;
sh=rect.bottom-rect.top;
if(sw>0&&sh>0)
SceneResizeViewport(sw,sh);
}
else
{
SceneResizeViewport(GetSystemMetrics(SM_CXSCREEN),
GetSystemMetrics(SM_CYSCREEN));
}
return 0;
case WM_CLOSE:
ShowWindow(hWnd,SW_HIDE);
PostQuitMessage(0);
return 0;
case WM_DESTROY:
return 0;
case WM_KEYDOWN:
switch(wParam)
{
case VK_ESCAPE:
PostMessage(hWnd,WM_CLOSE,0,0);
break;
case VK_PRIOR: //page up
lookupdown -= 1.0f;
break;
case VK_NEXT: //page down
lookupdown +=1.0f;
break;
case VK_UP:////////
xpos -=q* (float)sin(heading*piover180)*0.5f;
zpos -=q* (float)cos(heading*piover180)*0.5f;
// if (walkbiasangle>=359.0f){walkbiasangle=0.0f;}
// else {walkbiasangle+=10;}
// walkbias=(float)sin(walkbiasangle*piover180)/20.0f;
break;
case VK_DOWN://///
xpos +=q* (float)sin(heading*piover180)*0.5f;
zpos +=q* (float)cos(heading*piover180)*0.5f;
// if (walkbiasangle<=1.0f){walkbiasangle=359.0f;}
// else {walkbiasangle-=10;}
// walkbias=(float)sin(walkbiasangle*piover180)/20.0f;
break;
case VK_RIGHT://///////////
heading -=2.0f;
yrot = heading;
break;
case VK_LEFT:
heading +=2.0f;
yrot = heading;
break;
//////////-----XY轴旋转
case 'A':
xup +=q* (float)cos(-heading*piover180)*0.25f;
zup +=q* (float)sin(-heading*piover180)*0.25f;
break;
case 'D': //y
xup -=q* (float)cos(-heading*piover180)*0.25f;
zup -=q* (float)sin(-heading*piover180)*0.25f;
break;
case 'W': //y上
yup -=q*0.4f;
break;
case 'S': //y下
yup +=q*0.4f;
break;
//////////////////////////////////////
case 'B':
if(!bp)
{
bp=TRUE;
blend=!blend;
if(blend)
{
glEnable(GL_BLEND); //打开混合功能
glDisable(GL_DEPTH_TEST); //关闭深度测试
}
else
{
glDisable(GL_BLEND); //关闭混合功能
glEnable(GL_DEPTH_TEST); //打开深度测试
}
}
else
{
bp=FALSE;
}
break;
//////////------路灯开关------------
case 'G':
if(!goodlight)
{
goodlight=TRUE;
}
else
{
goodlight=FALSE;
}
break;
//////////-----透明开关------------
case 'L':
if(!lp)
{
lp=TRUE;
light=!light;
if(!light)
{
glDisable(GL_LIGHTING);
}
else
{
glEnable(GL_LIGHTING);
}
}
else
{
lp=FALSE;
}
break;
}
return 0;
case WM_LBUTTONDOWN: //是否按下鼠标左键
{
bRender=!bRender;
return 0;
}
default:
return DefWindowProc(hWnd,message,wParam,lParam);
}
}
GLvoid KillGLWindow(GLvoid)
{
if (fullscreen)
{
ChangeDisplaySettings(NULL,0);
ShowCursor(TRUE);
}
if (hRC)
{
if (!wglMakeCurrent(NULL,NULL))
{
MessageBox(NULL,"Release Of DC And RC Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
}
if (!wglDeleteContext(hRC))
{
MessageBox(NULL,"Release Rendering Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
}
hRC=NULL;
}
if (hDC && !ReleaseDC(hWnd,hDC))
{
MessageBox(NULL,"Release Device Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
hDC=NULL;
}
if (hWnd && !DestroyWindow(hWnd))
{
MessageBox(NULL,"Could Not Release hWnd.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
hWnd=NULL;
}
if (!UnregisterClass("OpenGL",hInstance))
{
MessageBox(NULL,"Could Not Unregister Class.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
hInstance=NULL;
}
}
旅徒冰迹Lucky 2015-06-07
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GLvoid glDrawCube() // 绘制立方体
{
glBegin(GL_QUADS);
// 前面
glNormal3f( 0.0f, 0.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
// 后面
glNormal3f( 0.0f, 0.0f,-1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
// 上面
glNormal3f( 0.0f, 1.0f, 0.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
// 下面
glNormal3f( 0.0f,-1.0f, 0.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
// 右面
glNormal3f( 1.0f, 0.0f, 0.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
// 左面
glNormal3f(-1.0f, 0.0f, 0.0f);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
glEnd();
}
//天空盒的函数实现
void skybox()
{
glBindTexture(GL_TEXTURE_2D, texture[30]);//南
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 50.0f, -50.0f, 50.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( -50.0f, -50.0f, 50.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( -50.0f, 50.0f, 50.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 50.0f, 50.0f, 50.0f);
glEnd();
glBindTexture(GL_TEXTURE_2D, texture[1]);//东
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 50.0f, -50.0f, -50.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 50.0f, -50.0f, 50.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 50.0f, 50.0f, 50.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 50.0f, 50.0f, -50.0f);
glEnd();
glBindTexture(GL_TEXTURE_2D, texture[2]);//北
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f( -50.0f, -50.0f, -50.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( 50.0f, -50.0f, -50.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( 50.0f, 50.0f, -50.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( -50.0f, 50.0f, -50.0f);
glEnd();
glBindTexture(GL_TEXTURE_2D, texture[3]);//西
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f( -50.0f, -50.0f, 50.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( -50.0f, -50.0f, -50.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( -50.0f, 50.0f, -50.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( -50.0f, 50.0f, 50.0f);
glEnd();
glBindTexture(GL_TEXTURE_2D, texture[4]);//底
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 50.0f, -50.0f, -50.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( -50.0f, -50.0f, -50.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( -50.0f, -50.0f, 50.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 50.0f, -50.0f, 50.0f);
glEnd();
glBindTexture(GL_TEXTURE_2D, texture[5]);//顶
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f( 50.0f, 50.0f, 50.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f( -50.0f, 50.0f, 50.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f( -50.0f, 50.0f, -50.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f( 50.0f, 50.0f, -50.0f);
glEnd();
}
void EnableOpenGL()
{
PIXELFORMATDESCRIPTOR pfd;
int iFormat;
hDC=GetDC(hWnd);
ZeroMemory(&pfd,sizeof(pfd));
pfd.nSize=sizeof(pfd);
pfd.nVersion=1;
pfd.dwFlags= PFD_DRAW_TO_WINDOW |
PFD_SUPPORT_OPENGL |
PFD_DOUBLEBUFFER;
pfd.iPixelType=PFD_TYPE_RGBA;
pfd.cColorBits=16;
pfd.cDepthBits=16;
pfd.iLayerType=PFD_MAIN_PLANE;
iFormat=ChoosePixelFormat(hDC,&pfd);
SetPixelFormat(hDC,iFormat,&pfd);
hRC=wglCreateContext(hDC);
wglMakeCurrent(hDC,hRC);
}
//取消OPENGL
void DisableOpenGL()
{
wglMakeCurrent(NULL,NULL);
wglDeleteContext(hRC);
ReleaseDC(hWnd,hDC);
if (fullscreen)
{
ChangeDisplaySettings(NULL,0);
ShowCursor(TRUE);
}
if (hRC)
{
if (!wglMakeCurrent(NULL,NULL))
{
MessageBox(NULL,"Release Of DC And RC Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
}
if (!wglDeleteContext(hRC))
{
MessageBox(NULL,"Release Rendering Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
}
hRC=NULL;
}
if (hDC && !ReleaseDC(hWnd,hDC))
{
MessageBox(NULL,"Release Device Context Failed.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
hDC=NULL;
}
if (hWnd && !DestroyWindow(hWnd))
{
MessageBox(NULL,"Could Not Release hWnd.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
hWnd=NULL;
}
if (!UnregisterClass("OpenGL",hInstance))
{
MessageBox(NULL,"Could Not Unregister Class.","SHUTDOWN ERROR",MB_OK | MB_ICONINFORMATION);
hInstance=NULL;
}
}
旅徒冰迹Lucky 2015-06-07
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void SceneInit (int w,int h)
{
LoadGLTextures(); //条到处理调用位图并用此位图建立纹理的子程序
glEnable(GL_TEXTURE_2D); //纹理被创建，并允许2D纹理贴图
glShadeModel(GL_SMOOTH);
glClearColor(0.0,0.0,0.0,0.5);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
//设置光源参数
glLightfv(GL_LIGHT1,GL_AMBIENT,LightAmbient); //设置环境光
glLightfv(GL_LIGHT1,GL_DIFFUSE,LightDiffuse); //设置漫反射光
glLightfv(GL_LIGHT1,GL_POSITION,LightPosition); //光源的位置
glEnable(GL_LIGHT1); //允许光源一
glColor4f( 1.0f, 1.0f, 1.0f, 0.5); //全亮度，50%的透明
glBlendFunc(GL_SRC_ALPHA,GL_ONE); //基于半透明的混合方式
}
void SceneResizeViewport(GLsizei w, GLsizei h)
{
if(h==0)
{h=1;}
aspect=(GLfloat)w/(GLfloat)h;
glViewport(0,0,w,h);
glMatrixMode(GL_PROJECTION); //选择投影句镇
glLoadIdentity();
gluPerspective(45.f,aspect,0.1f,100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
///////////////这里进行说有的绘图工作////////////////////////////////////////
int SceneShow(GLvoid)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //清屏和清除深度缓冲区
glLoadIdentity(); //重置当前MODELVIEW矩阵
glDisable(GL_BLEND);
glDisable(GL_COLOR_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
GLfloat xtrans=-xpos;
GLfloat ztrans=-zpos;
GLfloat ytrans=-0.25f;
GLfloat sceneroty=360.0f-yrot;
//开始绘图
//开始绘图
glRotatef(lookupdown,1.0f,0,0); //X旋转
glRotatef(sceneroty,0,1.0f,0); //y旋转
skybox();
glTranslatef(xtrans+xup,ytrans+yup,ztrans+zup); //移动
//--------------------------------------------------------------------
if(keys[VK_TAB])
{
glBindTexture(GL_TEXTURE_2D,texture[22]);//绘制雨滴粒子
for(int i=SOURCE/2;i<SOURCE;i++)
{
for (loop=(i)*(MAX_PARTICLES/SOURCE);loop<(i+1)*(MAX_PARTICLES/SOURCE);loop++)
{
if (particle[loop].active)
{
float x=particle[loop].x=-25+(i-SOURCE/2)*(100/SOURCE);
float y=particle[loop].y+40;
float z=particle[loop].z+zoom;
glColor4f(particle[loop].r,particle[loop].g,particle[loop].b,particle[loop].life);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2d(1,1); glVertex3f(x+0.5f,y+0.5f,z);
glTexCoord2d(0,1); glVertex3f(x-0.5f,y+0.5f,z);
glTexCoord2d(1,0); glVertex3f(x+0.5f,y-0.5f,z);
glTexCoord2d(0,0); glVertex3f(x-0.5f,y-0.5f,z);
glEnd();
particle[loop].x+=particle[loop].xi/(slowdown*1000);
particle[loop].y+=particle[loop].yi/(slowdown*1000);
particle[loop].z+=particle[loop].zi/(slowdown*1000);
particle[loop].xi+=particle[loop].xg;
particle[loop].yi+=particle[loop].yg;
particle[loop].zi+=particle[loop].zg;
particle[loop].life-=particle[loop].fade;
if (particle[loop].life<0.0f)
{
particle[loop].life=1.0f;
particle[loop].fade=float(rand()%100)/FADE+0.002f;
particle[loop].x=0.0f;
particle[loop].y=0.0f;
particle[loop].z=0.0f;
particle[loop].xi=xspeed+float((rand()%60)-32.0f);
particle[loop].yi=yspeed+float((rand()%60)-30.0f);
particle[loop].zi=float((rand()%60)-30.0f);
particle[loop].r=colors[0];
particle[loop].g=colors[1];
particle[loop].b=colors[2];
}
}
}
}
}
return TRUE;
}
