view.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // view.c -- player eye positioning
  21
  22 #include "quakedef.h"
  23 #include "cl_collision.h"
  24
  25 /*
  26
  27 The view is allowed to move slightly from it's true position for bobbing,
  28 but if it exceeds 8 pixels linear distance (spherical, not box), the list of
  29 entities sent from the server may not include everything in the pvs, especially
  30 when crossing a water boudnary.
  31
  32 */
  33
  34 cvar_t  cl_rollspeed = {0, "cl_rollspeed", "200"};
  35 cvar_t  cl_rollangle = {0, "cl_rollangle", "2.0"};
  36
  37 cvar_t  cl_bob = {0, "cl_bob","0.02"};
  38 cvar_t  cl_bobcycle = {0, "cl_bobcycle","0.6"};
  39 cvar_t  cl_bobup = {0, "cl_bobup","0.5"};
  40
  41 cvar_t  v_kicktime = {0, "v_kicktime", "0.5"};
  42 cvar_t  v_kickroll = {0, "v_kickroll", "0.6"};
  43 cvar_t  v_kickpitch = {0, "v_kickpitch", "0.6"};
  44
  45 cvar_t  v_iyaw_cycle = {0, "v_iyaw_cycle", "2"};
  46 cvar_t  v_iroll_cycle = {0, "v_iroll_cycle", "0.5"};
  47 cvar_t  v_ipitch_cycle = {0, "v_ipitch_cycle", "1"};
  48 cvar_t  v_iyaw_level = {0, "v_iyaw_level", "0.3"};
  49 cvar_t  v_iroll_level = {0, "v_iroll_level", "0.1"};
  50 cvar_t  v_ipitch_level = {0, "v_ipitch_level", "0.3"};
  51
  52 cvar_t  v_idlescale = {0, "v_idlescale", "0"};
  53
  54 cvar_t  crosshair = {CVAR_SAVE, "crosshair", "0"};
  55
  56 cvar_t  v_centermove = {0, "v_centermove", "0.15"};
  57 cvar_t  v_centerspeed = {0, "v_centerspeed","500"};
  58
  59 cvar_t cl_stairsmoothspeed = {CVAR_SAVE, "cl_stairsmoothspeed", "160"};
  60
  61 cvar_t chase_back = {CVAR_SAVE, "chase_back", "48"};
  62 cvar_t chase_up = {CVAR_SAVE, "chase_up", "24"};
  63 cvar_t chase_active = {CVAR_SAVE, "chase_active", "0"};
  64 // GAME_GOODVSBAD2
  65 cvar_t chase_stevie = {0, "chase_stevie", "0"};
  66
  67 float   v_dmg_time, v_dmg_roll, v_dmg_pitch;
  68
  69
  70 /*
  71 ===============
  72 V_CalcRoll
  73
  74 Used by view and sv_user
  75 ===============
  76 */
  77 float V_CalcRoll (vec3_t angles, vec3_t velocity)
  78 {
  79         vec3_t  right;
  80         float   sign;
  81         float   side;
  82         float   value;
  83
  84         AngleVectors (angles, NULL, right, NULL);
  85         side = DotProduct (velocity, right);
  86         sign = side < 0 ? -1 : 1;
  87         side = fabs(side);
  88
  89         value = cl_rollangle.value;
  90
  91         if (side < cl_rollspeed.value)
  92                 side = side * value / cl_rollspeed.value;
  93         else
  94                 side = value;
  95
  96         return side*sign;
  97
  98 }
  99
 100 void V_StartPitchDrift (void)
 101 {
 102         if (cl.laststop == cl.time)
 103                 return;         // something else is keeping it from drifting
 104
 105         if (cl.nodrift || !cl.pitchvel)
 106         {
 107                 cl.pitchvel = v_centerspeed.value;
 108                 cl.nodrift = false;
 109                 cl.driftmove = 0;
 110         }
 111 }
 112
 113 void V_StopPitchDrift (void)
 114 {
 115         cl.laststop = cl.time;
 116         cl.nodrift = true;
 117         cl.pitchvel = 0;
 118 }
 119
 120 /*
 121 ===============
 122 V_DriftPitch
 123
 124 Moves the client pitch angle towards cl.idealpitch sent by the server.
 125
 126 If the user is adjusting pitch manually, either with lookup/lookdown,
 127 mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.
 128
 129 Drifting is enabled when the center view key is hit, mlook is released and
 130 lookspring is non 0, or when
 131 ===============
 132 */
 133 void V_DriftPitch (void)
 134 {
 135         float           delta, move;
 136
 137         if (noclip_anglehack || !cl.onground || cls.demoplayback )
 138         {
 139                 cl.driftmove = 0;
 140                 cl.pitchvel = 0;
 141                 return;
 142         }
 143
 144 // don't count small mouse motion
 145         if (cl.nodrift)
 146         {
 147                 if ( fabs(cl.cmd.forwardmove) < cl_forwardspeed.value)
 148                         cl.driftmove = 0;
 149                 else
 150                         cl.driftmove += cl.frametime;
 151
 152                 if ( cl.driftmove > v_centermove.value)
 153                 {
 154                         V_StartPitchDrift ();
 155                 }
 156                 return;
 157         }
 158
 159         delta = cl.idealpitch - cl.viewangles[PITCH];
 160
 161         if (!delta)
 162         {
 163                 cl.pitchvel = 0;
 164                 return;
 165         }
 166
 167         move = cl.frametime * cl.pitchvel;
 168         cl.pitchvel += cl.frametime * v_centerspeed.value;
 169
 170         if (delta > 0)
 171         {
 172                 if (move > delta)
 173                 {
 174                         cl.pitchvel = 0;
 175                         move = delta;
 176                 }
 177                 cl.viewangles[PITCH] += move;
 178         }
 179         else if (delta < 0)
 180         {
 181                 if (move > -delta)
 182                 {
 183                         cl.pitchvel = 0;
 184                         move = -delta;
 185                 }
 186                 cl.viewangles[PITCH] -= move;
 187         }
 188 }
 189
 190
 191 /*
 192 ==============================================================================
 193
 194                                                 SCREEN FLASHES
 195
 196 ==============================================================================
 197 */
 198
 199
 200 /*
 201 ===============
 202 V_ParseDamage
 203 ===============
 204 */
 205 void V_ParseDamage (void)
 206 {
 207         int armor, blood;
 208         vec3_t from;
 209         //vec3_t forward, right;
 210         vec3_t localfrom;
 211         entity_t *ent;
 212         //float side;
 213         float count;
 214
 215         armor = MSG_ReadByte ();
 216         blood = MSG_ReadByte ();
 217         MSG_ReadVector(from, cl.protocol);
 218
 219         count = blood*0.5 + armor*0.5;
 220         if (count < 10)
 221                 count = 10;
 222
 223         cl.faceanimtime = cl.time + 0.2;                // put sbar face into pain frame
 224
 225         cl.cshifts[CSHIFT_DAMAGE].percent += 3*count;
 226         if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
 227                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 228         if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
 229                 cl.cshifts[CSHIFT_DAMAGE].percent = 150;
 230
 231         if (armor > blood)
 232         {
 233                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
 234                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
 235                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
 236         }
 237         else if (armor)
 238         {
 239                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
 240                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
 241                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
 242         }
 243         else
 244         {
 245                 cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
 246                 cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
 247                 cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
 248         }
 249
 250         // calculate view angle kicks
 251         if (cl.viewentity >= 0 && cl.viewentity < MAX_EDICTS && cl_entities[cl.viewentity].state_current.active)
 252         {
 253                 ent = &cl_entities[cl.viewentity];
 254                 Matrix4x4_Transform(&ent->render.inversematrix, from, localfrom);
 255                 VectorNormalize(localfrom);
 256                 v_dmg_pitch = count * localfrom[0] * v_kickpitch.value;
 257                 v_dmg_roll = count * localfrom[1] * v_kickroll.value;
 258                 v_dmg_time = v_kicktime.value;
 259         }
 260 }
 261
 262 static cshift_t v_cshift;
 263
 264 /*
 265 ==================
 266 V_cshift_f
 267 ==================
 268 */
 269 static void V_cshift_f (void)
 270 {
 271         v_cshift.destcolor[0] = atoi(Cmd_Argv(1));
 272         v_cshift.destcolor[1] = atoi(Cmd_Argv(2));
 273         v_cshift.destcolor[2] = atoi(Cmd_Argv(3));
 274         v_cshift.percent = atoi(Cmd_Argv(4));
 275 }
 276
 277
 278 /*
 279 ==================
 280 V_BonusFlash_f
 281
 282 When you run over an item, the server sends this command
 283 ==================
 284 */
 285 static void V_BonusFlash_f (void)
 286 {
 287         cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
 288         cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
 289         cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
 290         cl.cshifts[CSHIFT_BONUS].percent = 50;
 291 }
 292
 293 /*
 294 ==============================================================================
 295
 296                                                 VIEW RENDERING
 297
 298 ==============================================================================
 299 */
 300
 301 extern matrix4x4_t viewmodelmatrix;
 302
 303 #include "cl_collision.h"
 304
 305 /*
 306 ==================
 307 V_CalcRefdef
 308
 309 ==================
 310 */
 311 extern float timerefreshangle;
 312 void V_CalcRefdef (void)
 313 {
 314         static float oldz;
 315         entity_t *ent;
 316         float vieworg[3], viewangles[3];
 317         Matrix4x4_CreateIdentity(&viewmodelmatrix);
 318         Matrix4x4_CreateIdentity(&r_refdef.viewentitymatrix);
 319         if (cls.state == ca_connected && cls.signon == SIGNONS)
 320         {
 321                 // ent is the view entity (visible when out of body)
 322                 ent = &cl_entities[cl.viewentity];
 323                 if (cl.intermission)
 324                 {
 325                         // entity is a fixed camera, just copy the matrix
 326                         Matrix4x4_Copy(&r_refdef.viewentitymatrix, &ent->render.matrix);
 327                         Matrix4x4_Copy(&viewmodelmatrix, &ent->render.matrix);
 328                 }
 329                 else
 330                 {
 331                         // player can look around, so take the origin from the entity,
 332                         // and the angles from the input system
 333                         Matrix4x4_OriginFromMatrix(&ent->render.matrix, vieworg);
 334                         VectorCopy(cl.viewangles, viewangles);
 335
 336                         // stair smoothing
 337                         //Con_Printf("cl.onground %i oldz %f newz %f\n", cl.onground, oldz, vieworg[2]);
 338                         if (cl.onground && oldz < vieworg[2])
 339                         {
 340                                 oldz += (cl.time - cl.oldtime) * cl_stairsmoothspeed.value;
 341                                 oldz = vieworg[2] = bound(vieworg[2] - 16, oldz, vieworg[2]);
 342                         }
 343                         else if (cl.onground && oldz > vieworg[2])
 344                         {
 345                                 oldz -= (cl.time - cl.oldtime) * cl_stairsmoothspeed.value;
 346                                 oldz = vieworg[2] = bound(vieworg[2], oldz, vieworg[2] + 16);
 347                         }
 348                         else
 349                                 oldz = vieworg[2];
 350
 351                         if (chase_active.value)
 352                         {
 353                                 // observing entity from third person
 354                                 vec_t camback, camup, dist, forward[3], stop[3], chase_dest[3], normal[3];
 355
 356                                 camback = bound(0, chase_back.value, 128);
 357                                 if (chase_back.value != camback)
 358                                         Cvar_SetValueQuick(&chase_back, camback);
 359                                 camup = bound(-48, chase_up.value, 96);
 360                                 if (chase_up.value != camup)
 361                                         Cvar_SetValueQuick(&chase_up, camup);
 362
 363                                 // this + 22 is to match view_ofs for compatibility with older versions
 364                                 camup += 22;
 365
 366                                 if (gamemode == GAME_GOODVSBAD2 && chase_stevie.integer)
 367                                 {
 368                                         // look straight down from high above
 369                                         viewangles[0] = 90;
 370                                         camback = 2048;
 371                                 }
 372                                 AngleVectors(viewangles, forward, NULL, NULL);
 373
 374                                 // trace a little further so it hits a surface more consistently (to avoid 'snapping' on the edge of the range)
 375                                 dist = -camback - 8;
 376                                 chase_dest[0] = vieworg[0] + forward[0] * dist;
 377                                 chase_dest[1] = vieworg[1] + forward[1] * dist;
 378                                 chase_dest[2] = vieworg[2] + forward[2] * dist + camup;
 379                                 CL_TraceLine(vieworg, chase_dest, stop, normal, true, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_SKY);
 380                                 vieworg[0] = stop[0] + forward[0] * 8 + normal[0] * 4;
 381                                 vieworg[1] = stop[1] + forward[1] * 8 + normal[1] * 4;
 382                                 vieworg[2] = stop[2] + forward[2] * 8 + normal[2] * 4;
 383                         }
 384                         else
 385                         {
 386                                 // first person view from entity
 387                                 // angles
 388                                 if (cl.stats[STAT_HEALTH] <= 0 && gamemode != GAME_FNIGGIUM)
 389                                         viewangles[ROLL] = 80;  // dead view angle
 390                                 VectorAdd(viewangles, cl.punchangle, viewangles);
 391                                 viewangles[ROLL] += V_CalcRoll(cl.viewangles, cl.velocity);
 392                                 if (v_dmg_time > 0)
 393                                 {
 394                                         viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
 395                                         viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
 396                                         v_dmg_time -= cl.frametime;
 397                                 }
 398                                 // origin
 399                                 VectorAdd(vieworg, cl.punchvector, vieworg);
 400                                 vieworg[2] += cl.viewheight;
 401                                 if (cl.stats[STAT_HEALTH] > 0 && cl_bob.value && cl_bobcycle.value)
 402                                 {
 403                                         double bob, cycle;
 404                                         // LordHavoc: this code is *weird*, but not replacable (I think it
 405                                         // should be done in QC on the server, but oh well, quake is quake)
 406                                         // LordHavoc: figured out bobup: the time at which the sin is at 180
 407                                         // degrees (which allows lengthening or squishing the peak or valley)
 408                                         cycle = cl.time / cl_bobcycle.value;
 409                                         cycle -= (int) cycle;
 410                                         if (cycle < cl_bobup.value)
 411                                                 cycle = sin(M_PI * cycle / cl_bobup.value);
 412                                         else
 413                                                 cycle = sin(M_PI + M_PI * (cycle-cl_bobup.value)/(1.0 - cl_bobup.value));
 414                                         // bob is proportional to velocity in the xy plane
 415                                         // (don't count Z, or jumping messes it up)
 416                                         bob = sqrt(cl.velocity[0]*cl.velocity[0] + cl.velocity[1]*cl.velocity[1]) * cl_bob.value;
 417                                         bob = bob*0.3 + bob*0.7*cycle;
 418                                         vieworg[2] += bound(-7, bob, 4);
 419                                 }
 420                         }
 421                         // calculate a view matrix for rendering the scene
 422                         if (v_idlescale.value)
 423                                 Matrix4x4_CreateFromQuakeEntity(&r_refdef.viewentitymatrix, vieworg[0], vieworg[1], vieworg[2], viewangles[0] + v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value, viewangles[1] + v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value, viewangles[2] + v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value, 1);
 424                         else
 425                                 Matrix4x4_CreateFromQuakeEntity(&r_refdef.viewentitymatrix, vieworg[0], vieworg[1], vieworg[2], viewangles[0], viewangles[1], viewangles[2] + v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value, 1);
 426                         // calculate a viewmodel matrix for use in view-attached entities
 427                         Matrix4x4_CreateFromQuakeEntity(&viewmodelmatrix, vieworg[0], vieworg[1], vieworg[2], viewangles[0], viewangles[1], viewangles[2], 0.3);
 428                 }
 429         }
 430 }
 431
 432 void V_FadeViewFlashs(void)
 433 {
 434         // drop the damage value
 435         cl.cshifts[CSHIFT_DAMAGE].percent -= (cl.time - cl.oldtime)*150;
 436         if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
 437                 cl.cshifts[CSHIFT_DAMAGE].percent = 0;
 438         // drop the bonus value
 439         cl.cshifts[CSHIFT_BONUS].percent -= (cl.time - cl.oldtime)*100;
 440         if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
 441                 cl.cshifts[CSHIFT_BONUS].percent = 0;
 442 }
 443
 444 void V_CalcViewBlend(void)
 445 {
 446         float a2;
 447         int j;
 448         r_refdef.viewblend[0] = 0;
 449         r_refdef.viewblend[1] = 0;
 450         r_refdef.viewblend[2] = 0;
 451         r_refdef.viewblend[3] = 0;
 452         if (cls.state == ca_connected && cls.signon == SIGNONS && gl_polyblend.value > 0)
 453         {
 454                 // set contents color
 455                 switch (CL_PointQ1Contents(r_vieworigin))
 456                 {
 457                 case CONTENTS_EMPTY:
 458                 case CONTENTS_SOLID:
 459                         cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 460                         cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 0;
 461                         cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 462                         cl.cshifts[CSHIFT_CONTENTS].percent = 0;
 463                         break;
 464                 case CONTENTS_LAVA:
 465                         cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 255;
 466                         cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 467                         cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 0;
 468                         cl.cshifts[CSHIFT_CONTENTS].percent = 150 >> 1;
 469                         break;
 470                 case CONTENTS_SLIME:
 471                         cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 0;
 472                         cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 25;
 473                         cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 5;
 474                         cl.cshifts[CSHIFT_CONTENTS].percent = 150 >> 1;
 475                         break;
 476                 default:
 477                         cl.cshifts[CSHIFT_CONTENTS].destcolor[0] = 130;
 478                         cl.cshifts[CSHIFT_CONTENTS].destcolor[1] = 80;
 479                         cl.cshifts[CSHIFT_CONTENTS].destcolor[2] = 50;
 480                         cl.cshifts[CSHIFT_CONTENTS].percent = 128 >> 1;
 481                 }
 482
 483                 if (gamemode != GAME_TRANSFUSION)
 484                 {
 485                         if (cl.items & IT_QUAD)
 486                         {
 487                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 488                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
 489                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
 490                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 491                         }
 492                         else if (cl.items & IT_SUIT)
 493                         {
 494                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
 495                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 496                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 497                                 cl.cshifts[CSHIFT_POWERUP].percent = 20;
 498                         }
 499                         else if (cl.items & IT_INVISIBILITY)
 500                         {
 501                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
 502                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
 503                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
 504                                 cl.cshifts[CSHIFT_POWERUP].percent = 100;
 505                         }
 506                         else if (cl.items & IT_INVULNERABILITY)
 507                         {
 508                                 cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
 509                                 cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
 510                                 cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
 511                                 cl.cshifts[CSHIFT_POWERUP].percent = 30;
 512                         }
 513                         else
 514                                 cl.cshifts[CSHIFT_POWERUP].percent = 0;
 515                 }
 516
 517                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[0] = v_cshift.destcolor[0];
 518                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[1] = v_cshift.destcolor[1];
 519                 cl.cshifts[CSHIFT_VCSHIFT].destcolor[2] = v_cshift.destcolor[2];
 520                 cl.cshifts[CSHIFT_VCSHIFT].percent = v_cshift.percent;
 521
 522                 // LordHavoc: fixed V_CalcBlend
 523                 for (j = 0;j < NUM_CSHIFTS;j++)
 524                 {
 525                         a2 = bound(0.0f, cl.cshifts[j].percent * (1.0f / 255.0f), 1.0f);
 526                         if (a2 > 0)
 527                         {
 528                                 VectorLerp(r_refdef.viewblend, a2, cl.cshifts[j].destcolor, r_refdef.viewblend);
 529                                 r_refdef.viewblend[3] = (1 - (1 - r_refdef.viewblend[3]) * (1 - a2)); // correct alpha multiply...  took a while to find it on the web
 530                         }
 531                 }
 532                 // saturate color (to avoid blending in black)
 533                 if (r_refdef.viewblend[3])
 534                 {
 535                         a2 = 1 / r_refdef.viewblend[3];
 536                         VectorScale(r_refdef.viewblend, a2, r_refdef.viewblend);
 537                 }
 538
 539                 r_refdef.viewblend[0] = bound(0.0f, r_refdef.viewblend[0] * (1.0f/255.0f), 1.0f);
 540                 r_refdef.viewblend[1] = bound(0.0f, r_refdef.viewblend[1] * (1.0f/255.0f), 1.0f);
 541                 r_refdef.viewblend[2] = bound(0.0f, r_refdef.viewblend[2] * (1.0f/255.0f), 1.0f);
 542                 r_refdef.viewblend[3] = bound(0.0f, r_refdef.viewblend[3] * gl_polyblend.value, 1.0f);
 543         }
 544 }
 545
 546 //============================================================================
 547
 548 /*
 549 =============
 550 V_Init
 551 =============
 552 */
 553 void V_Init (void)
 554 {
 555         Cmd_AddCommand ("v_cshift", V_cshift_f);
 556         Cmd_AddCommand ("bf", V_BonusFlash_f);
 557         Cmd_AddCommand ("centerview", V_StartPitchDrift);
 558
 559         Cvar_RegisterVariable (&v_centermove);
 560         Cvar_RegisterVariable (&v_centerspeed);
 561
 562         Cvar_RegisterVariable (&v_iyaw_cycle);
 563         Cvar_RegisterVariable (&v_iroll_cycle);
 564         Cvar_RegisterVariable (&v_ipitch_cycle);
 565         Cvar_RegisterVariable (&v_iyaw_level);
 566         Cvar_RegisterVariable (&v_iroll_level);
 567         Cvar_RegisterVariable (&v_ipitch_level);
 568
 569         Cvar_RegisterVariable (&v_idlescale);
 570         Cvar_RegisterVariable (&crosshair);
 571
 572         Cvar_RegisterVariable (&cl_rollspeed);
 573         Cvar_RegisterVariable (&cl_rollangle);
 574         Cvar_RegisterVariable (&cl_bob);
 575         Cvar_RegisterVariable (&cl_bobcycle);
 576         Cvar_RegisterVariable (&cl_bobup);
 577
 578         Cvar_RegisterVariable (&v_kicktime);
 579         Cvar_RegisterVariable (&v_kickroll);
 580         Cvar_RegisterVariable (&v_kickpitch);
 581
 582         Cvar_RegisterVariable (&cl_stairsmoothspeed);
 583
 584         Cvar_RegisterVariable (&chase_back);
 585         Cvar_RegisterVariable (&chase_up);
 586         Cvar_RegisterVariable (&chase_active);
 587         if (gamemode == GAME_GOODVSBAD2)
 588                 Cvar_RegisterVariable (&chase_stevie);
 589 }
 590