www.pudn.com > WaveSimulation.rar > GlobalVarDef.cpp

#include "stdafx.h" 
#include 				// OpenGL headers 
#include  
#include  
#include "myDefine.h" 
#include "Input.h" 
#include "Texture.h" 
#include "Wave.h" 
#include "Bezier.h" 
#include "terrian.h" 
 
 
 
//global varity defination 
CTexture			g_cTexture; 
CInput				g_cInput; 
CWave				g_cWave[WAVETRAIN]; 
CBezier				g_cBezier; 
CTerrian			g_cTerrian; 
 
 
float		g_timet; 
 
bool		g_bPolygonMode		= true;									//多边形填充模式 
bool		g_bLighting			= true;									//光照模式 
bool		g_bTexture			= true; 
bool		g_bFog				= false; 
 
 
GLfloat		Xeye = -22.0f ,	Yeye = 0.0f ,	Zeye = 3.0f,				//视点坐标 
			ViewLineLength = 1500.0f, Camera_HalfFov = 25.0f, 
			ViewLineAngle = PI / 2.0f - 65.0 / 180 *PI; 
 
int			quit=0;														//判断程序是否正在运行 
HINSTANCE	g_hInst = NULL;												//全局进程句柄 
HDC			GLOBhDC = NULL;												//全局设备环境句柄 
HWND		mainwindow = NULL;											//主窗口句柄 
HGLRC		hRC = NULL;													// OpenGL Rendering context 
 
int			width = 0 ,		height = 1;									//显示窗口的宽度高度//handleresize()中使用  
int			base = 0;													//字体列表 
float		fps = 0;													//刷新楨率 
 
 
 
void calcNormal(float v[][3], float out[]) 
{ 
	float v1[3],v2[3]; 
	static const int x = 0; 
	static const int y = 1; 
	static const int z = 2; 
 
	v1[x] = v[0][x] - v[1][x]; 
	v1[y] = v[0][y] - v[1][y]; 
	v1[z] = v[0][z] - v[1][z]; 
 
	v2[x] = v[1][x] - v[2][x]; 
	v2[y] = v[1][y] - v[2][y]; 
	v2[z] = v[1][z] - v[2][z]; 
 
	out[x] = v1[y]*v2[z] - v1[z]*v2[y]; 
	out[y] = v1[z]*v2[x] - v1[x]*v2[z]; 
	out[z] = v1[x]*v2[y] - v1[y]*v2[x]; 
 
	//归一化 
	float *vector = out; 
	float length; 
	length = sqrtf((vector[0]*vector[0]) +  
				   (vector[1]*vector[1]) + 
				   (vector[2]*vector[2])); 
 
	if(length <= 0.000001f) 
		length = 1.0f; 
	vector[0] /= length; 
	vector[1] /= length; 
	vector[2] /= length; 
}