Source/Skybox.cpp

   1 #include "skybox.h"
   2 #include "Game.h"
   3
   4 extern float viewdistance;
   5 extern int detail;
   6 extern bool trilinear;
   7 extern float blurness;
   8 extern int environment;
   9 extern TGAImageRec texture;
  10 extern bool skyboxtexture;
  11 extern float skyboxr;
  12 extern float skyboxg;
  13 extern float skyboxb;
  14 extern int tutoriallevel;
  15
  16 bool    SkyBox::load( char *ffront,char *fleft,char *fback,char *fright,char *fup,char *fdown,char *fcloud,char *freflect)
  17 {
  18 /*      static GLuint           type;
  19         unsigned char fileNamep[256];
  20 */
  21         LOGFUNC;
  22
  23         //front
  24         Game::LoadTexture(ffront, &front, true, false);
  25         //left
  26         Game::LoadTexture(fleft, &left, true, false);
  27         //back
  28         Game::LoadTexture(fback, &back, true, false);
  29         //right
  30         Game::LoadTexture(fright, &right, true, false);
  31         //up
  32         Game::LoadTexture(fup, &up, true, false);
  33         //down
  34         Game::LoadTexture(fdown, &down, true, false);
  35         //cloud
  36         Game::LoadTexture(fcloud, &cloud, true, false);
  37         //reflect
  38         Game::LoadTexture(freflect, &reflect, true, false);
  39 /*
  40         //front
  41         CopyCStringToPascal(ffront,fileNamep);
  42         upload_image( fileNamep ,0);
  43         if(1==1){
  44                 if ( texture.bpp == 24 )
  45                         type = GL_RGB;
  46                 else
  47                         type = GL_RGBA;
  48
  49                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
  50
  51                 if(!front)glGenTextures( 1, &front );
  52                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
  53
  54                 glBindTexture( GL_TEXTURE_2D, front);
  55                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
  56                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
  57                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
  58                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
  59
  60                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
  61
  62         }
  63
  64         //left
  65         CopyCStringToPascal(fleft,fileNamep);
  66         upload_image( fileNamep ,0);
  67         if(1==1){
  68                 if ( texture.bpp == 24 )
  69                         type = GL_RGB;
  70                 else
  71                         type = GL_RGBA;
  72
  73                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
  74
  75                 if(!left)glGenTextures( 1, &left );
  76                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
  77
  78                 glBindTexture( GL_TEXTURE_2D, left);
  79                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
  80                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
  81                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
  82                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
  83
  84                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
  85
  86         }
  87
  88         //back
  89         CopyCStringToPascal(fback,fileNamep);
  90         upload_image( fileNamep ,0);
  91         if(1==1){
  92                 if ( texture.bpp == 24 )
  93                         type = GL_RGB;
  94                 else
  95                         type = GL_RGBA;
  96
  97                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
  98
  99                 if(!back)glGenTextures( 1, &back );
 100                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
 101
 102                 glBindTexture( GL_TEXTURE_2D, back);
 103                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
 104                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
 105                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
 106                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
 107
 108                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
 109
 110         }
 111
 112         //right
 113         CopyCStringToPascal(fright,fileNamep);
 114         upload_image( fileNamep ,0);
 115         if(1==1){
 116                 if ( texture.bpp == 24 )
 117                         type = GL_RGB;
 118                 else
 119                         type = GL_RGBA;
 120
 121                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
 122
 123                 if(!right)glGenTextures( 1, &right );
 124                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
 125
 126                 glBindTexture( GL_TEXTURE_2D, right);
 127                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
 128                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
 129                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
 130                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
 131
 132                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
 133
 134         }
 135
 136         //up
 137         CopyCStringToPascal(fup,fileNamep);
 138         upload_image( fileNamep ,0);
 139         if(1==1){
 140                 if ( texture.bpp == 24 )
 141                         type = GL_RGB;
 142                 else
 143                         type = GL_RGBA;
 144
 145                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
 146
 147                 if(!up)glGenTextures( 1, &up );
 148                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
 149
 150                 glBindTexture( GL_TEXTURE_2D, up);
 151                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
 152                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
 153                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
 154                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
 155
 156                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
 157
 158         }
 159
 160         //down
 161         CopyCStringToPascal(fdown,fileNamep);
 162         upload_image( fileNamep ,0);
 163         if(1==1){
 164                 if ( texture.bpp == 24 )
 165                         type = GL_RGB;
 166                 else
 167                         type = GL_RGBA;
 168
 169                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
 170
 171                 if(!down)glGenTextures( 1, &down );
 172                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
 173
 174                 glBindTexture( GL_TEXTURE_2D, down);
 175                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
 176                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
 177                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
 178                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
 179
 180                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
 181
 182         }
 183
 184         //cloud
 185         CopyCStringToPascal(fcloud,fileNamep);
 186         upload_image( fileNamep ,0);
 187         if(1==1){
 188                 if ( texture.bpp == 24 )
 189                         type = GL_RGB;
 190                 else
 191                         type = GL_RGBA;
 192
 193                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
 194
 195                 if(!cloud)glGenTextures( 1, &cloud );
 196                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
 197
 198                 glBindTexture( GL_TEXTURE_2D, cloud);
 199                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
 200                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
 201                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
 202                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
 203
 204                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
 205
 206         }
 207
 208         //up
 209         CopyCStringToPascal(freflect,fileNamep);
 210         upload_image( fileNamep ,0);
 211         if(1==1){
 212                 if ( texture.bpp == 24 )
 213                         type = GL_RGB;
 214                 else
 215                         type = GL_RGBA;
 216
 217                 glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
 218
 219                 if(!reflect)glGenTextures( 1, &reflect );
 220                 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
 221
 222                 glBindTexture( GL_TEXTURE_2D, reflect);
 223                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
 224                 //glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
 225                 if(trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
 226                 if(!trilinear)glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST );
 227
 228                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
 229
 230         }
 231 */
 232         return true;
 233 }
 234
 235 void    SkyBox::draw()
 236 {
 237         static float size=viewdistance/4;
 238         glPushMatrix();
 239         static GLfloat M[16];
 240         glGetFloatv(GL_MODELVIEW_MATRIX,M);
 241         M[12]=0;
 242         M[13]=0;
 243         M[14]=0;
 244         glLoadMatrixf(M);
 245         //if(environment==2)glTranslatef(0,blurness*viewdistance/1000,0);
 246         if(environment==2)glScalef(1+blurness/1000,1,1+blurness/1000);
 247         if(environment!=2)glColor3f(.85*skyboxr,.85*skyboxg,.95*skyboxb);
 248         else glColor3f(1*skyboxr,.95*skyboxg,.95*skyboxb);
 249
 250         if(!skyboxtexture){
 251                 glDisable(GL_TEXTURE_2D);
 252                 glColor3f(skyboxr*.8,skyboxg*.8,skyboxb*.8);
 253         }
 254         glDepthMask(0);
 255         glDisable(GL_CULL_FACE);
 256         glEnable(GL_BLEND);
 257         glDisable(GL_LIGHTING);
 258         //              glActiveTextureARB(GL_TEXTURE0_ARB);
 259         if(skyboxtexture)glEnable(GL_TEXTURE_2D);
 260         glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
 261         glBindTexture(GL_TEXTURE_2D, front);
 262         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
 263         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
 264         glBegin(GL_QUADS);
 265         glNormal3f( 0.0f, 0.0f, -1);
 266         glTexCoord2f(0, 0); glVertex3f(-size, -size,  size);
 267         glTexCoord2f(1, 0); glVertex3f( size, -size,  size);
 268         glTexCoord2f(1, 1); glVertex3f( size,  size,  size);
 269         glTexCoord2f(0, 1); glVertex3f(-size,  size,  size);
 270         glEnd();
 271         glBindTexture(GL_TEXTURE_2D, back);
 272         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
 273         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
 274         glBegin(GL_QUADS);
 275         glNormal3f( 0.0f, 0.0f, 1);
 276         glTexCoord2f(1, 0); glVertex3f(-size, -size, -size);
 277         glTexCoord2f(1, 1); glVertex3f(-size,  size, -size);
 278         glTexCoord2f(0, 1); glVertex3f( size,  size, -size);
 279         glTexCoord2f(0, 0); glVertex3f( size, -size, -size);
 280         glEnd();
 281         glBindTexture(GL_TEXTURE_2D, up);
 282         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
 283         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
 284         glBegin(GL_QUADS);
 285         glNormal3f( 0.0f, -1.0f, 0);
 286         glTexCoord2f(0, 1); glVertex3f(-size,  size, -size);
 287         glTexCoord2f(0, 0); glVertex3f(-size,  size,  size);
 288         glTexCoord2f(1, 0); glVertex3f( size,  size,  size);
 289         glTexCoord2f(1, 1); glVertex3f( size,  size, -size);
 290         glEnd();
 291         //if(detail!=0){
 292         glBindTexture(GL_TEXTURE_2D, down);
 293         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
 294         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
 295         glBegin(GL_QUADS);
 296         glNormal3f( 0.0f, 1.0f, 0);
 297
 298         glTexCoord2f(0, 0); glVertex3f(-size, -size, -size);
 299         glTexCoord2f(1, 0); glVertex3f( size, -size, -size);
 300         glTexCoord2f(1, 1); glVertex3f( size, -size,  size);
 301         glTexCoord2f(0, 1); glVertex3f(-size, -size,  size);
 302         glEnd();
 303         //}
 304         glBindTexture(GL_TEXTURE_2D, right);
 305         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
 306         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
 307         glBegin(GL_QUADS);
 308         glNormal3f( -1.0f, 0.0f, 0);
 309         glTexCoord2f(1, 0); glVertex3f( size, -size, -size);
 310         glTexCoord2f(1, 1); glVertex3f( size,  size, -size);
 311         glTexCoord2f(0, 1); glVertex3f( size,  size,  size);
 312         glTexCoord2f(0, 0); glVertex3f( size, -size,  size);
 313         glEnd();
 314         glBindTexture(GL_TEXTURE_2D, left);
 315         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE );
 316         glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE );
 317         glBegin(GL_QUADS);
 318         glNormal3f( 1.0f, 0.0f, 0);
 319         glTexCoord2f(0, 0); glVertex3f(-size, -size, -size);
 320         glTexCoord2f(1, 0); glVertex3f(-size, -size,  size);
 321         glTexCoord2f(1, 1); glVertex3f(-size,  size,  size);
 322         glTexCoord2f(0, 1); glVertex3f(-size,  size, -size);
 323         glEnd();
 324         /*
 325         glEnable(GL_BLEND);
 326         glColor4f(1,1,1,1);
 327         glBindTexture(GL_TEXTURE_2D, cloud);
 328         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 329         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 330         glBegin(GL_QUADS);
 331         glNormal3f( 0.0f, -1.0f, 0);
 332         glTexCoord2f(0,                                 (1+cloudmove)*30);      glVertex3f(-size,       size/200, -size);
 333         glTexCoord2f(0,                                 0);                             glVertex3f(-size,       size/200,  size);
 334         glTexCoord2f((1+cloudmove)*30,  0);                             glVertex3f( size,       size/200,  size);
 335         glTexCoord2f((1+cloudmove)*30,  (1+cloudmove)*30);      glVertex3f( size,       size/200, -size);
 336         glEnd();
 337         glDisable(GL_BLEND);*/
 338         glEnable(GL_CULL_FACE);
 339         glDepthMask(1);
 340         glPopMatrix();
 341 }
 342
 343 SkyBox::SkyBox()
 344 {
 345         front = 0,left = 0,back = 0,right = 0,up = 0,down = 0,cloud = 0,reflect = 0;
 346         cloudmove = 0;
 347 }
 348 SkyBox::~SkyBox()
 349 {
 350         if (front) glDeleteTextures( 1, (const unsigned long *)&front );
 351         if (left) glDeleteTextures( 1, (const unsigned long *)&left );
 352         if (back) glDeleteTextures( 1, (const unsigned long *)&back );
 353         if (right) glDeleteTextures( 1, (const unsigned long *)&right );
 354         if (up) glDeleteTextures( 1, (const unsigned long *)&up );
 355         if (down) glDeleteTextures( 1, (const unsigned long *)&down );
 356         if (cloud) glDeleteTextures( 1, (const unsigned long *)&cloud );
 357         if (reflect) glDeleteTextures( 1, (const unsigned long *)&reflect );
 358 };
 359