2 Copyright (C) 1996-1997 Id Software, Inc.
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.
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.
13 See the GNU General Public License for more details.
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.
23 #define MAX_PARTICLES 16384 // default max # of particles at one time
24 #define ABSOLUTE_MIN_PARTICLES 512 // no fewer than this no matter what's on the command line
28 pt_static, pt_grav, pt_blob, pt_blob2, pt_bulletsmoke, pt_smoke, pt_snow, pt_rain, pt_spark, pt_bubble, pt_fade, pt_steam, pt_splash, pt_splashpuff, pt_flame, pt_blood, pt_oneframe, pt_lavasplash, pt_raindropsplash, pt_underwaterspark, pt_explosionsplash, pt_stardust
32 #define P_TEXNUM_FIRSTBIT 0
33 #define P_TEXNUM_BITS 6
34 #define P_ORIENTATION_FIRSTBIT (P_TEXNUM_FIRSTBIT + P_TEXNUM_BITS)
35 #define P_ORIENTATION_BITS 2
36 #define P_FLAGS_FIRSTBIT (P_ORIENTATION_FIRSTBIT + P_ORIENTATION_BITS)
37 #define P_DYNLIGHT (1 << (P_FLAGS_FIRSTBIT + 0))
38 #define P_ADDITIVE (1 << (P_FLAGS_FIRSTBIT + 1))
40 typedef struct particle_s
43 unsigned int flags; // dynamically lit, orientation, additive blending, texnum
50 float time2; // used for various things (snow fluttering, for example)
51 float bounce; // how much bounce-back from a surface the particle hits (0 = no physics, 1 = stop and slide, 2 = keep bouncing forever, 1.5 is typical)
53 vec3_t vel2; // used for snow fluttering (base velocity, wind for instance)
54 float friction; // how much air friction affects this object (objects with a low mass/size ratio tend to get more air friction)
55 float pressure; // if non-zero, apply pressure to other particles
60 static int particlepalette[256] =
62 0x000000,0x0f0f0f,0x1f1f1f,0x2f2f2f,0x3f3f3f,0x4b4b4b,0x5b5b5b,0x6b6b6b,
63 0x7b7b7b,0x8b8b8b,0x9b9b9b,0xababab,0xbbbbbb,0xcbcbcb,0xdbdbdb,0xebebeb,
64 0x0f0b07,0x170f0b,0x1f170b,0x271b0f,0x2f2313,0x372b17,0x3f2f17,0x4b371b,
65 0x533b1b,0x5b431f,0x634b1f,0x6b531f,0x73571f,0x7b5f23,0x836723,0x8f6f23,
66 0x0b0b0f,0x13131b,0x1b1b27,0x272733,0x2f2f3f,0x37374b,0x3f3f57,0x474767,
67 0x4f4f73,0x5b5b7f,0x63638b,0x6b6b97,0x7373a3,0x7b7baf,0x8383bb,0x8b8bcb,
68 0x000000,0x070700,0x0b0b00,0x131300,0x1b1b00,0x232300,0x2b2b07,0x2f2f07,
69 0x373707,0x3f3f07,0x474707,0x4b4b0b,0x53530b,0x5b5b0b,0x63630b,0x6b6b0f,
70 0x070000,0x0f0000,0x170000,0x1f0000,0x270000,0x2f0000,0x370000,0x3f0000,
71 0x470000,0x4f0000,0x570000,0x5f0000,0x670000,0x6f0000,0x770000,0x7f0000,
72 0x131300,0x1b1b00,0x232300,0x2f2b00,0x372f00,0x433700,0x4b3b07,0x574307,
73 0x5f4707,0x6b4b0b,0x77530f,0x835713,0x8b5b13,0x975f1b,0xa3631f,0xaf6723,
74 0x231307,0x2f170b,0x3b1f0f,0x4b2313,0x572b17,0x632f1f,0x733723,0x7f3b2b,
75 0x8f4333,0x9f4f33,0xaf632f,0xbf772f,0xcf8f2b,0xdfab27,0xefcb1f,0xfff31b,
76 0x0b0700,0x1b1300,0x2b230f,0x372b13,0x47331b,0x533723,0x633f2b,0x6f4733,
77 0x7f533f,0x8b5f47,0x9b6b53,0xa77b5f,0xb7876b,0xc3937b,0xd3a38b,0xe3b397,
78 0xab8ba3,0x9f7f97,0x937387,0x8b677b,0x7f5b6f,0x775363,0x6b4b57,0x5f3f4b,
79 0x573743,0x4b2f37,0x43272f,0x371f23,0x2b171b,0x231313,0x170b0b,0x0f0707,
80 0xbb739f,0xaf6b8f,0xa35f83,0x975777,0x8b4f6b,0x7f4b5f,0x734353,0x6b3b4b,
81 0x5f333f,0x532b37,0x47232b,0x3b1f23,0x2f171b,0x231313,0x170b0b,0x0f0707,
82 0xdbc3bb,0xcbb3a7,0xbfa39b,0xaf978b,0xa3877b,0x977b6f,0x876f5f,0x7b6353,
83 0x6b5747,0x5f4b3b,0x533f33,0x433327,0x372b1f,0x271f17,0x1b130f,0x0f0b07,
84 0x6f837b,0x677b6f,0x5f7367,0x576b5f,0x4f6357,0x475b4f,0x3f5347,0x374b3f,
85 0x2f4337,0x2b3b2f,0x233327,0x1f2b1f,0x172317,0x0f1b13,0x0b130b,0x070b07,
86 0xfff31b,0xefdf17,0xdbcb13,0xcbb70f,0xbba70f,0xab970b,0x9b8307,0x8b7307,
87 0x7b6307,0x6b5300,0x5b4700,0x4b3700,0x3b2b00,0x2b1f00,0x1b0f00,0x0b0700,
88 0x0000ff,0x0b0bef,0x1313df,0x1b1bcf,0x2323bf,0x2b2baf,0x2f2f9f,0x2f2f8f,
89 0x2f2f7f,0x2f2f6f,0x2f2f5f,0x2b2b4f,0x23233f,0x1b1b2f,0x13131f,0x0b0b0f,
90 0x2b0000,0x3b0000,0x4b0700,0x5f0700,0x6f0f00,0x7f1707,0x931f07,0xa3270b,
91 0xb7330f,0xc34b1b,0xcf632b,0xdb7f3b,0xe3974f,0xe7ab5f,0xefbf77,0xf7d38b,
92 0xa77b3b,0xb79b37,0xc7c337,0xe7e357,0x7fbfff,0xabe7ff,0xd7ffff,0x670000,
93 0x8b0000,0xb30000,0xd70000,0xff0000,0xfff393,0xfff7c7,0xffffff,0x9f5b53
96 static int explosparkramp[8] = {0x4b0700, 0x6f0f00, 0x931f07, 0xb7330f, 0xcf632b, 0xe3974f, 0xffe7b5, 0xffffff};
97 //static int explounderwatersparkramp[8] = {0x00074b, 0x000f6f, 0x071f93, 0x0f33b7, 0x2b63cf, 0x4f97e3, 0xb5e7ff, 0xffffff};
99 // these must match r_part.c's textures
100 static const int tex_smoke[8] = {0, 1, 2, 3, 4, 5, 6, 7};
101 static const int tex_rainsplash[16] = {8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23};
102 static const int tex_particle = 24;
103 static const int tex_rain = 25;
104 static const int tex_bubble = 26;
105 //static const int tex_rocketglow = 27;
107 static int cl_maxparticles;
108 static int cl_numparticles;
109 static particle_t *particles;
110 static particle_t **freeparticles; // list used only in compacting particles array
111 //static renderparticle_t *cl_renderparticles;
113 static cvar_t cl_particles = {CVAR_SAVE, "cl_particles", "1"};
114 static cvar_t cl_particles_size = {CVAR_SAVE, "cl_particles_size", "1"};
115 static cvar_t cl_particles_bloodshowers = {CVAR_SAVE, "cl_particles_bloodshowers", "1"};
116 static cvar_t cl_particles_blood = {CVAR_SAVE, "cl_particles_blood", "1"};
117 static cvar_t cl_particles_blood_size_min = {CVAR_SAVE, "cl_particles_blood_size_min", "5"};
118 static cvar_t cl_particles_blood_size_max = {CVAR_SAVE, "cl_particles_blood_size_max", "10"};
119 static cvar_t cl_particles_blood_alpha = {CVAR_SAVE, "cl_particles_blood_alpha", "0.5"};
120 static cvar_t cl_particles_smoke = {CVAR_SAVE, "cl_particles_smoke", "1"};
121 static cvar_t cl_particles_sparks = {CVAR_SAVE, "cl_particles_sparks", "1"};
122 static cvar_t cl_particles_bubbles = {CVAR_SAVE, "cl_particles_bubbles", "1"};
123 static cvar_t cl_particles_explosions = {CVAR_SAVE, "cl_particles_explosions", "0"};
125 static mempool_t *cl_part_mempool;
127 void CL_Particles_Clear(void)
137 void CL_ReadPointFile_f (void);
138 void CL_Particles_Init (void)
142 i = COM_CheckParm ("-particles");
146 cl_maxparticles = (int)(atoi(com_argv[i+1]));
147 if (cl_maxparticles < ABSOLUTE_MIN_PARTICLES)
148 cl_maxparticles = ABSOLUTE_MIN_PARTICLES;
151 cl_maxparticles = MAX_PARTICLES;
153 Cmd_AddCommand ("pointfile", CL_ReadPointFile_f);
155 Cvar_RegisterVariable (&cl_particles);
156 Cvar_RegisterVariable (&cl_particles_size);
157 Cvar_RegisterVariable (&cl_particles_bloodshowers);
158 Cvar_RegisterVariable (&cl_particles_blood);
159 Cvar_RegisterVariable (&cl_particles_blood_size_min);
160 Cvar_RegisterVariable (&cl_particles_blood_size_max);
161 Cvar_RegisterVariable (&cl_particles_blood_alpha);
162 Cvar_RegisterVariable (&cl_particles_smoke);
163 Cvar_RegisterVariable (&cl_particles_sparks);
164 Cvar_RegisterVariable (&cl_particles_bubbles);
165 Cvar_RegisterVariable (&cl_particles_explosions);
167 cl_part_mempool = Mem_AllocPool("CL_Part");
168 particles = (particle_t *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t));
169 freeparticles = (void *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t *));
172 // FIXME: r_refdef stuff should be allocated somewhere else?
173 //r_refdef.particles = cl_renderparticles = Mem_Alloc(cl_refdef_mempool, cl_maxparticles * sizeof(renderparticle_t));
176 #define particle(ptype, porientation, pcolor1, pcolor2, ptex, plight, padditive, pscalex, pscaley, palpha, ptime, pbounce, px, py, pz, pvx, pvy, pvz, ptime2, pvx2, pvy2, pvz2, pfriction, ppressure)\
178 if (cl_numparticles >= cl_maxparticles)\
182 int tempcolor, tempcolor2, cr1, cg1, cb1, cr2, cg2, cb2;\
183 unsigned int partflags;\
184 partflags = ((porientation) << P_ORIENTATION_FIRSTBIT) | ((ptex) << P_TEXNUM_FIRSTBIT);\
186 partflags |= P_ADDITIVE;\
188 partflags |= P_DYNLIGHT;\
189 tempcolor = (pcolor1);\
190 tempcolor2 = (pcolor2);\
191 cr2 = ((tempcolor2) >> 16) & 0xFF;\
192 cg2 = ((tempcolor2) >> 8) & 0xFF;\
193 cb2 = (tempcolor2) & 0xFF;\
194 if (tempcolor != tempcolor2)\
196 cr1 = ((tempcolor) >> 16) & 0xFF;\
197 cg1 = ((tempcolor) >> 8) & 0xFF;\
198 cb1 = (tempcolor) & 0xFF;\
199 tempcolor = rand() & 0xFF;\
200 cr2 = (((cr2 - cr1) * tempcolor) >> 8) + cr1;\
201 cg2 = (((cg2 - cg1) * tempcolor) >> 8) + cg1;\
202 cb2 = (((cb2 - cb1) * tempcolor) >> 8) + cb1;\
204 part = &particles[cl_numparticles++];\
205 part->type = (ptype);\
206 part->color[0] = cr2;\
207 part->color[1] = cg2;\
208 part->color[2] = cb2;\
209 part->color[3] = 0xFF;\
210 part->flags = partflags;\
211 /*part->tex = (ptex);*/\
212 /*part->orientation = (porientation);*/\
213 /*part->dynlight = (plight);*/\
214 /*part->additive = (padditive);*/\
215 part->scalex = (pscalex);\
216 part->scaley = (pscaley);\
217 part->alpha = (palpha);\
218 part->die = cl.time + (ptime);\
219 part->bounce = (pbounce);\
220 part->org[0] = (px);\
221 part->org[1] = (py);\
222 part->org[2] = (pz);\
223 part->vel[0] = (pvx);\
224 part->vel[1] = (pvy);\
225 part->vel[2] = (pvz);\
226 part->time2 = (ptime2);\
227 part->vel2[0] = (pvx2);\
228 part->vel2[1] = (pvy2);\
229 part->vel2[2] = (pvz2);\
230 part->friction = (pfriction);\
231 part->pressure = (ppressure);\
240 void CL_EntityParticles (entity_t *ent)
244 float sp, sy, cp, cy;
248 static vec3_t avelocities[NUMVERTEXNORMALS];
249 if (!cl_particles.integer) return;
254 if (!avelocities[0][0])
255 for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
256 avelocities[0][i] = (rand()&255) * 0.01;
258 for (i=0 ; i<NUMVERTEXNORMALS ; i++)
260 angle = cl.time * avelocities[i][0];
263 angle = cl.time * avelocities[i][1];
271 particle(pt_oneframe, PARTICLE_BILLBOARD, particlepalette[0x6f], particlepalette[0x6f], tex_particle, false, false, 2, 2, 255, 9999, 0, ent->render.origin[0] + m_bytenormals[i][0]*dist + forward[0]*beamlength, ent->render.origin[1] + m_bytenormals[i][1]*dist + forward[1]*beamlength, ent->render.origin[2] + m_bytenormals[i][2]*dist + forward[2]*beamlength, 0, 0, 0, 0, 0, 0, 0, 0, 0);
276 void CL_ReadPointFile_f (void)
280 char *pointfile, *pointfilepos, *t, tchar;
282 pointfile = COM_LoadFile(va("maps/%s.pts", sv.name), true);
285 Con_Printf ("couldn't open %s.pts\n", sv.name);
289 Con_Printf ("Reading %s.pts...\n", sv.name);
291 pointfilepos = pointfile;
292 while (*pointfilepos)
294 while (*pointfilepos == '\n' || *pointfilepos == '\r')
299 while (*t && *t != '\n' && *t != '\r')
303 r = sscanf (pointfilepos,"%f %f %f", &org[0], &org[1], &org[2]);
310 if (cl_numparticles >= cl_maxparticles)
312 Con_Printf ("Not enough free particles\n");
315 particle(pt_static, PARTICLE_BILLBOARD, particlepalette[(-c)&15], particlepalette[(-c)&15], tex_particle, false, false, 2, 2, 255, 99999, 0, org[0], org[1], org[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
319 Con_Printf ("%i points read\n", c);
324 CL_ParseParticleEffect
326 Parse an effect out of the server message
329 void CL_ParseParticleEffect (void)
332 int i, count, msgcount, color;
334 for (i=0 ; i<3 ; i++)
335 org[i] = MSG_ReadCoord ();
336 for (i=0 ; i<3 ; i++)
337 dir[i] = MSG_ReadChar () * (1.0/16);
338 msgcount = MSG_ReadByte ();
339 color = MSG_ReadByte ();
346 CL_RunParticleEffect (org, dir, color, count);
355 void CL_ParticleExplosion (vec3_t org, int smoke)
358 R_Stain(org, 96, 80, 80, 80, 128, 176, 176, 176, 128);
360 i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
361 if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
362 for (i = 0;i < 128;i++)
363 particle(pt_bubble, PARTICLE_BILLBOARD, 0x808080, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-96, 96), lhrandom(-96, 96), lhrandom(-96, 96), 0, 0, 0, 0, 0, 0);
365 if (cl_particles.integer && cl_particles_explosions.integer)
370 qbyte noise1[32*32], noise2[32*32];
372 VectorClear(end); // hush MSVC
373 i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
374 if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
376 //for (i = 0;i < 128;i++)
377 // particle(pt_bubble, PARTICLE_BILLBOARD, 0x808080, 0xFFFFFF, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-96, 96), lhrandom(-96, 96), lhrandom(-96, 96), 0, 0, 0, 0, 0, 0);
379 ang[2] = lhrandom(0, 360);
380 fractalnoisequick(noise1, 32, 4);
381 fractalnoisequick(noise2, 32, 8);
382 for (i = 0;i < 32;i++)
384 for (j = 0;j < 32;j++)
387 VectorMA(org, 16, v, v);
388 TraceLine(org, v, end, NULL, 0, true);
389 ang[0] = (j + 0.5f) * (360.0f / 32.0f);
390 ang[1] = (i + 0.5f) * (360.0f / 32.0f);
391 AngleVectors(ang, v, NULL, NULL);
392 f = noise1[j*32+i] * 1.5f;
393 VectorScale(v, f, v);
394 k = noise2[j*32+i] * 0x010101;
395 particle(pt_underwaterspark, PARTICLE_BILLBOARD, k, k, tex_smoke[rand()&7], false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2], 512.0f, 0, 0, 0, 2, 0);
396 VectorScale(v, 0.75, v);
397 k = explosparkramp[(noise2[j*32+i] >> 5)];
398 particle(pt_underwaterspark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2], 512.0f, 0, 0, 0, 2, 0);
404 ang[2] = lhrandom(0, 360);
405 fractalnoisequick(noise1, 32, 4);
406 fractalnoisequick(noise2, 32, 8);
407 for (i = 0;i < 32;i++)
409 for (j = 0;j < 32;j++)
412 VectorMA(org, 16, v, v);
413 TraceLine(org, v, end, NULL, 0, true);
414 ang[0] = (j + 0.5f) * (360.0f / 32.0f);
415 ang[1] = (i + 0.5f) * (360.0f / 32.0f);
416 AngleVectors(ang, v, NULL, NULL);
417 f = noise1[j*32+i] * 1.5f;
418 VectorScale(v, f, v);
419 k = noise2[j*32+i] * 0x010101;
420 particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_smoke[rand()&7], false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
421 VectorScale(v, 0.75, v);
422 k = explosparkramp[(noise2[j*32+i] >> 5)];
423 particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 10, 10, lhrandom(128, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
425 // VectorScale(v, 384, v);
426 // particle(pt_spark, PARTICLE_BILLBOARD, explosparkramp[rand()&7], tex_particle, false, true, 2, 2, lhrandom(16, 255), 9999, 1.5, end[0], end[1], end[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
436 for (i = 0;i < 256;i++)
442 while(DotProduct(v,v) < 0.75);
443 VectorScale(v, 512, v);
444 k = explosparkramp[rand()&7];
445 particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 4, 4, 255, 9999, 1.5, org[0], org[1], org[2], v[0], v[1], v[2] + 160.0f, 512.0f, 0, 0, 0, 2, 0);
454 CL_ParticleExplosion2
458 void CL_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
461 if (!cl_particles.integer) return;
463 for (i = 0;i < 512;i++)
465 k = particlepalette[colorStart + (i % colorLength)];
466 particle(pt_fade, PARTICLE_BILLBOARD, k, k, tex_particle, false, false, 1.5, 1.5, 255, 0.3, 0, org[0] + lhrandom(-8, 8), org[1] + lhrandom(-8, 8), org[2] + lhrandom(-8, 8), lhrandom(-192, 192), lhrandom(-192, 192), lhrandom(-192, 192), 384, 0, 0, 0, 1, 0);
476 void CL_BlobExplosion (vec3_t org)
479 if (!cl_particles.integer) return;
481 R_Stain(org, 96, 80, 80, 80, 128, 176, 176, 176, 128);
482 //R_Stain(org, 96, 96, 64, 96, 128, 160, 128, 160, 128);
486 //for (i = 0;i < 256;i++)
487 // particle(pt_blob , PARTICLE_BILLBOARD, particlepalette[ 66+(rand()%6)], tex_particle, false, true, 4, 4, 255, 9999, 0, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-4, 4), lhrandom(-4, 4), lhrandom(-128, 128), 0, 0, 0, 0, 0, 0);
488 //for (i = 0;i < 256;i++)
489 // particle(pt_blob2, PARTICLE_BILLBOARD, particlepalette[150+(rand()%6)], tex_particle, false, true, 4, 4, 255, 9999, 0, org[0] + lhrandom(-16, 16), org[1] + lhrandom(-16, 16), org[2] + lhrandom(-16, 16), lhrandom(-4, 4), lhrandom(-4, 4), lhrandom(-128, 128), 0, 0, 0, 0, 0, 0);
498 void CL_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count)
501 if (!cl_particles.integer) return;
505 CL_ParticleExplosion(org, false);
510 k = particlepalette[color + (rand()&7)];
511 particle(pt_fade, PARTICLE_BILLBOARD, k, k, tex_particle, false, false, 1, 1, 128, 9999, 0, org[0] + lhrandom(-8, 8), org[1] + lhrandom(-8, 8), org[2] + lhrandom(-8, 8), lhrandom(-15, 15), lhrandom(-15, 15), lhrandom(-15, 15), 384, 0, 0, 0, 0, 0);
515 // LordHavoc: added this for spawning sparks/dust (which have strong gravity)
521 void CL_SparkShower (vec3_t org, vec3_t dir, int count)
524 if (!cl_particles.integer) return;
526 R_Stain(org, 32, 96, 96, 96, 32, 128, 128, 128, 32);
529 if (cl_particles_smoke.integer)
530 particle(pt_bulletsmoke, PARTICLE_BILLBOARD, 0xA0A0A0, 0xFFFFFF, tex_smoke[rand()&7], true, true, 2, 2, 255, 9999, 0, org[0], org[1], org[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(0, 16), 0, 0, 0, 0, 0, 0);
532 if (cl_particles_sparks.integer)
537 k = particlepalette[0x68 + (rand() & 7)];
538 particle(pt_spark, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 1, 1, lhrandom(64, 128), 9999, 0, org[0], org[1], org[2], lhrandom(-64, 64) + dir[0], lhrandom(-64, 64) + dir[1], lhrandom(0, 128) + dir[2], 480, 0, 0, 0, 1, 0);
543 void CL_PlasmaBurn (vec3_t org)
545 if (!cl_particles.integer) return;
547 R_Stain(org, 48, 96, 96, 96, 48, 128, 128, 128, 48);
550 void CL_BloodPuff (vec3_t org, vec3_t vel, int count)
553 // bloodcount is used to accumulate counts too small to cause a blood particle
554 static int bloodcount = 0;
555 if (!cl_particles.integer) return;
556 if (!cl_particles_blood.integer) return;
563 while(bloodcount > 0)
565 r = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
566 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, r, r, cl_particles_blood_alpha.value * 255, 9999, -1, org[0], org[1], org[2], vel[0] + lhrandom(-s, s), vel[1] + lhrandom(-s, s), vel[2] + lhrandom(-s, s), 0, 0, 0, 0, 1, 0);
571 void CL_BloodShower (vec3_t mins, vec3_t maxs, float velspeed, int count)
575 vec3_t diff, center, velscale;
576 if (!cl_particles.integer) return;
577 if (!cl_particles_bloodshowers.integer) return;
578 if (!cl_particles_blood.integer) return;
580 VectorSubtract(maxs, mins, diff);
581 center[0] = (mins[0] + maxs[0]) * 0.5;
582 center[1] = (mins[1] + maxs[1]) * 0.5;
583 center[2] = (mins[2] + maxs[2]) * 0.5;
584 // FIXME: change velspeed back to 2.0x after fixing mod
585 velscale[0] = velspeed * 2.0 / diff[0];
586 velscale[1] = velspeed * 2.0 / diff[1];
587 velscale[2] = velspeed * 2.0 / diff[2];
593 org[0] = lhrandom(mins[0], maxs[0]);
594 org[1] = lhrandom(mins[1], maxs[1]);
595 org[2] = lhrandom(mins[2], maxs[2]);
596 vel[0] = (org[0] - center[0]) * velscale[0];
597 vel[1] = (org[1] - center[1]) * velscale[1];
598 vel[2] = (org[2] - center[2]) * velscale[2];
599 r = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
601 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, r, r, cl_particles_blood_alpha.value * 255, 9999, -1, org[0], org[1], org[2], vel[0], vel[1], vel[2], 0, 0, 0, 0, 1, 0);
605 void CL_ParticleCube (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int gravity, int randomvel)
609 if (!cl_particles.integer) return;
610 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
611 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
612 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
616 k = particlepalette[colorbase + (rand()&3)];
617 particle(gravity ? pt_grav : pt_static, PARTICLE_BILLBOARD, k, k, tex_particle, false, false, 2, 2, 255, lhrandom(1, 2), 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), lhrandom(mins[2], maxs[2]), dir[0] + lhrandom(-randomvel, randomvel), dir[1] + lhrandom(-randomvel, randomvel), dir[2] + lhrandom(-randomvel, randomvel), 0, 0, 0, 0, 0, 0);
621 void CL_ParticleRain (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int type)
626 if (!cl_particles.integer) return;
627 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
628 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
629 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
630 if (dir[2] < 0) // falling
632 t = (maxs[2] - mins[2]) / -dir[2];
637 t = (maxs[2] - mins[2]) / dir[2];
640 if (t < 0 || t > 2) // sanity check
646 count *= 4; // ick, this should be in the mod or maps?
650 vel[0] = dir[0] + lhrandom(-16, 16);
651 vel[1] = dir[1] + lhrandom(-16, 16);
652 vel[2] = dir[2] + lhrandom(-32, 32);
653 k = particlepalette[colorbase + (rand()&3)];
654 particle(pt_rain, PARTICLE_UPRIGHT_FACING, k, k, tex_particle, true, true, 1, 64, 64, t, 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), z, vel[0], vel[1], vel[2], 0, vel[0], vel[1], vel[2], 0, 0);
660 vel[0] = dir[0] + lhrandom(-16, 16);
661 vel[1] = dir[1] + lhrandom(-16, 16);
662 vel[2] = dir[2] + lhrandom(-32, 32);
663 k = particlepalette[colorbase + (rand()&3)];
664 particle(pt_snow, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 2, 2, 255, t, 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), z, vel[0], vel[1], vel[2], 0, vel[0], vel[1], vel[2], 0, 0);
668 Host_Error("CL_ParticleRain: unknown type %i (0 = rain, 1 = snow)\n", type);
672 void CL_Stardust (vec3_t mins, vec3_t maxs, int count)
677 //Con_Printf("CL_Stardust ('%f %f %f', '%f %f %f', %d);\n", mins[0], mins[1], mins[2], maxs[0], maxs[1], maxs[2], count);
678 if (!cl_particles.integer) return;
680 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
681 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
682 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
684 center[0] = (mins[0] + maxs[0]) * 0.5f;
685 center[1] = (mins[1] + maxs[1]) * 0.5f;
686 center[2] = (mins[2] + maxs[2]) * 0.5f;
690 k = particlepalette[224 + (rand()&15)];
691 o[0] = lhrandom(mins[0], maxs[0]);
692 o[1] = lhrandom(mins[1], maxs[1]);
693 o[2] = lhrandom(mins[2], maxs[2]);
694 VectorSubtract(o, center, v);
695 VectorNormalizeFast(v);
696 VectorScale(v, 100, v);
697 v[2] += sv_gravity.value * 0.15f;
698 particle(pt_stardust, PARTICLE_BILLBOARD, 0x903010, 0xFFD030, tex_particle, false, true, 1.5, 1.5, lhrandom(64, 128), 9999, 0, o[0], o[1], o[2], v[0], v[1], v[2], 0, 0, 0, 0, 0, 0);
702 void CL_FlameCube (vec3_t mins, vec3_t maxs, int count)
706 if (!cl_particles.integer) return;
707 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
708 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
709 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
713 k = particlepalette[224 + (rand()&15)];
714 particle(pt_flame, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 4, 4, lhrandom(64, 128), 9999, 0, lhrandom(mins[0], maxs[0]), lhrandom(mins[1], maxs[1]), lhrandom(mins[2], maxs[2]), lhrandom(-32, 32), lhrandom(-32, 32), lhrandom(0, 64), 0, 0, 0, 0, 1, 0);
718 void CL_Flames (vec3_t org, vec3_t vel, int count)
721 if (!cl_particles.integer) return;
725 k = particlepalette[224 + (rand()&15)];
726 particle(pt_flame, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 4, 4, lhrandom(64, 128), 9999, 1.1, org[0], org[1], org[2], vel[0] + lhrandom(-128, 128), vel[1] + lhrandom(-128, 128), vel[2] + lhrandom(-128, 128), 0, 0, 0, 0, 1, 0);
738 void CL_LavaSplash (vec3_t origin)
743 if (!cl_particles.integer) return;
745 for (i=-128 ; i<128 ; i+=16)
747 for (j=-128 ; j<128 ; j+=16)
749 dir[0] = j + lhrandom(0, 8);
750 dir[1] = i + lhrandom(0, 8);
752 org[0] = origin[0] + dir[0];
753 org[1] = origin[1] + dir[1];
754 org[2] = origin[2] + lhrandom(0, 64);
755 vel = lhrandom(50, 120) / VectorLength(dir); // normalize and scale
756 k = particlepalette[224 + (rand()&7)];
757 particle(pt_lavasplash, PARTICLE_BILLBOARD, k, k, tex_particle, false, true, 7, 7, 255, 9999, 0, org[0], org[1], org[2], dir[0] * vel, dir[1] * vel, dir[2] * vel, 0, 0, 0, 0, 0, 0);
768 void CL_TeleportSplash (vec3_t org)
771 if (!cl_particles.integer) return;
773 for (i=-16 ; i<16 ; i+=8)
774 for (j=-16 ; j<16 ; j+=8)
775 for (k=-24 ; k<32 ; k+=8)
776 //particle(pt_fade, PARTICLE_BILLBOARD, 0xA0A0A0, 0xFFFFFF, tex_particle, false, true, 1.5, 1.5, lhrandom(64, 128), 9999, 0, org[0] + i + lhrandom(0, 8), org[1] + j + lhrandom(0, 8), org[2] + k + lhrandom(0, 8), i*2 + lhrandom(-12.5, 12.5), j*2 + lhrandom(-12.5, 12.5), k*2 + lhrandom(27.5, 52.5), 384.0f, 0, 0, 0, 1, 0);
777 particle(pt_fade, PARTICLE_BILLBOARD, 0xA0A0A0, 0xFFFFFF, tex_particle, false, true, 10, 10, lhrandom(64, 128), 9999, 0, org[0] + i + lhrandom(0, 8), org[1] + j + lhrandom(0, 8), org[2] + k + lhrandom(0, 8), lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-256, 256), 256.0f, 0, 0, 0, 1, 0);
780 void CL_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent)
782 vec3_t vec, dir, vel, pos;
783 float len, dec, speed;
784 int contents, bubbles;
785 if (!cl_particles.integer) return;
787 VectorSubtract(end, start, dir);
788 VectorNormalize(dir);
790 //if (type == 0 && host_frametime != 0) // rocket glow
791 // particle(pt_oneframe, PARTICLE_BILLBOARD, 0xFFFFFF, 0xFFFFFF, tex_rocketglow, false, true, 24, 24, 255, 9999, 0, end[0] - 12 * dir[0], end[1] - 12 * dir[1], end[2] - 12 * dir[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
793 VectorSubtract (end, start, vec);
794 len = VectorNormalizeLength (vec);
795 dec = -ent->persistent.trail_time;
796 ent->persistent.trail_time += len;
797 if (ent->persistent.trail_time < 0.01f)
800 speed = 1.0f / (ent->state_current.time - ent->state_previous.time);
801 VectorSubtract(ent->state_current.origin, ent->state_previous.origin, vel);
802 VectorScale(vel, speed, vel);
804 // advance into this frame to reach the first puff location
805 VectorMA(start, dec, vec, pos);
808 // if we skip out, leave it reset
809 ent->persistent.trail_time = 0.0f;
811 contents = Mod_PointInLeaf(pos, cl.worldmodel)->contents;
812 if (contents == CONTENTS_SKY || contents == CONTENTS_LAVA)
815 bubbles = (contents == CONTENTS_WATER || contents == CONTENTS_SLIME);
821 case 0: // rocket trail
822 if (!cl_particles_smoke.integer)
825 //particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_particle, true, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 256.0f, 0, 0, 0, 0, 0);
827 particle(pt_fade, PARTICLE_BILLBOARD, 0x303030, 0x606060, tex_smoke[rand()&7], true, false, dec, dec, 64, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-5, 5), lhrandom(-5, 5), lhrandom(-5, 5), 64.0f, 0, 0, 0, 0, 0);
828 //particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-10, 10), lhrandom(-10, 10), lhrandom(-10, 10), 128.0f, 0, 0, 0, 0, 0);
830 //particle(pt_smoke, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], false, true, 2, 2, 160, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
831 if (bubbles && cl_particles_bubbles.integer)
833 particle(pt_bubble, PARTICLE_BILLBOARD, 0x404040, 0x808080, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
834 //particle(pt_bubble, PARTICLE_BILLBOARD, 0x404040, 0x808080, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
838 //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 2, 2, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 512.0f, 0, 0, 0, 1, 0);
839 //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 2, 2, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 512.0f, 0, 0, 0, 1, 0);
840 //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
841 //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
842 //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
843 //particle(pt_spark, PARTICLE_BILLBOARD, particlepalette[0x68 + (rand() & 7)], tex_particle, false, true, 1, 1, lhrandom(128, 255), 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-64, 64) - vel[0] * 0.0625, lhrandom(-64, 64) - vel[1] * 0.0625, lhrandom(-64, 64) - vel[2] * 0.0625, 512.0f, 0, 0, 0, 1, 0);
847 case 1: // grenade trail
848 // FIXME: make it gradually stop smoking
849 if (!cl_particles_smoke.integer)
852 //particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_particle, true, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 256.0f, 0, 0, 0, 0, 0);
854 particle(pt_fade, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], true, false, dec, dec, 64, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-5, 5), lhrandom(-5, 5), lhrandom(-5, 5), 128.0f, 0, 0, 0, 0, 0);
855 //particle(pt_smoke, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], false, true, 2, 2, 160, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
856 if (bubbles && cl_particles_bubbles.integer)
858 particle(pt_bubble, PARTICLE_BILLBOARD, 0x404040, 0x808080, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
859 //particle(pt_bubble, PARTICLE_BILLBOARD, c * 2, tex_bubble, false, true, 2, 2, 255, 9999, 1.5, pos[0], pos[1], pos[2], lhrandom(-16, 16), lhrandom(-16, 16), lhrandom(-16, 16), 0, 0, 0, 0, 0, 0);
865 if (!cl_particles_blood.integer)
867 dec = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
868 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], vel[0] * 0.5f + lhrandom(-64, 64), vel[1] * 0.5f + lhrandom(-64, 64), vel[2] * 0.5f + lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
869 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
870 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_particle, true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
873 case 4: // slight blood
874 if (!cl_particles_blood.integer)
876 dec = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
877 particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 255.0f, 9999, -1, pos[0], pos[1], pos[2], vel[0] * 0.5f + lhrandom(-64, 64), vel[1] * 0.5f + lhrandom(-64, 64), vel[2] * 0.5f + lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
878 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_smoke[rand()&7], true, false, dec, dec, cl_particles_blood_alpha.value * 128.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
879 //particle(pt_blood, PARTICLE_BILLBOARD, 0x000000, 0x200000, tex_particle, true, false, dec, dec, cl_particles_blood_alpha.value * 128.0f, 9999, -1, pos[0], pos[1], pos[2], lhrandom(-64, 64), lhrandom(-64, 64), lhrandom(-64, 64), 0, 0, 0, 0, 1, 0);
882 case 3: // green tracer
884 //particle(pt_fade, PARTICLE_BILLBOARD, 0x373707, 0x373707, tex_particle, false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 384.0f, 0, 0, 0, 0, 0);
885 particle(pt_fade, PARTICLE_BILLBOARD, 0x373707, 0x373707, tex_particle, false, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 384.0f, 0, 0, 0, 0, 0);
888 case 5: // flame tracer
890 //particle(pt_fade, PARTICLE_BILLBOARD, 0xCF632B, 0xCF632B, tex_particle, false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 384.0f, 0, 0, 0, 0, 0);
891 particle(pt_fade, PARTICLE_BILLBOARD, 0xCF632B, 0xCF632B, tex_particle, false, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 384.0f, 0, 0, 0, 0, 0);
894 case 6: // voor trail
896 //particle(pt_fade, PARTICLE_BILLBOARD, 0x47232B, 0x47232B, tex_particle, false, true, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 384.0f, 0, 0, 0, 0, 0);
897 particle(pt_fade, PARTICLE_BILLBOARD, 0x47232B, 0x47232B, tex_particle, false, false, dec, dec, 128, 9999, 0, pos[0], pos[1], pos[2], lhrandom(-8, 8), lhrandom(-8, 8), lhrandom(-8, 8), 384.0f, 0, 0, 0, 0, 0);
900 case 7: // Nehahra smoke tracer
901 if (!cl_particles_smoke.integer)
904 particle(pt_smoke, PARTICLE_BILLBOARD, 0x202020, 0x404040, tex_smoke[rand()&7], true, false, dec, dec, 64, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
908 // advance to next time and position
910 VectorMA (pos, dec, vec, pos);
912 ent->persistent.trail_time = len;
915 void CL_RocketTrail2 (vec3_t start, vec3_t end, int color, entity_t *ent)
919 if (!cl_particles.integer) return;
920 if (!cl_particles_smoke.integer) return;
922 VectorCopy(start, pos);
923 VectorSubtract (end, start, vec);
924 len = (int) (VectorNormalizeLength (vec) * (1.0f / 3.0f));
925 VectorScale(vec, 3, vec);
926 color = particlepalette[color];
929 particle(pt_smoke, PARTICLE_BILLBOARD, color, color, tex_particle, false, false, 5, 5, 128, 9999, 0, pos[0], pos[1], pos[2], 0, 0, 0, 0, 0, 0, 0, 0, 0);
930 VectorAdd (pos, vec, pos);
940 void CL_MoveParticles (void)
943 //renderparticle_t *r, *rend;
944 int i, activeparticles, maxparticle, j, a, pressureused = false, content;
945 float gravity, dvel, frametime, f, dist, normal[3], v[3], org[3];
947 // LordHavoc: early out condition
948 if (!cl_numparticles)
950 //r_refdef.numparticles = 0;
954 frametime = cl.time - cl.oldtime;
956 return; // if absolutely still, don't update particles
957 gravity = frametime * sv_gravity.value;
958 dvel = 1+4*frametime;
963 for (i = 0, p = particles/*, r = r_refdef.particles, rend = r + cl_maxparticles*/;i < cl_numparticles;i++, p++)
965 if (p->die < cl.time)
967 freeparticles[j++] = p;
972 VectorCopy(p->org, p->oldorg);
973 VectorMA(p->org, frametime, p->vel, p->org);
974 VectorCopy(p->org, org);
977 if (TraceLine(p->oldorg, p->org, v, normal, 0, true) < 1)
979 VectorCopy(v, p->org);
982 // assume it's blood (lame, but...)
983 R_Stain(v, 64, 32, 16, 16, p->alpha * p->scalex * (1.0f / 100.0f), 192, 48, 48, p->alpha * p->scalex * (1.0f / 100.0f));
985 freeparticles[j++] = p;
990 dist = DotProduct(p->vel, normal) * -p->bounce;
991 VectorMA(p->vel, dist, normal, p->vel);
992 if (DotProduct(p->vel, p->vel) < 0.03)
999 f = p->friction * frametime;
1001 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1002 if (content != CONTENTS_EMPTY)
1005 VectorScale(p->vel, f, p->vel);
1013 // LordHavoc: drop-through because of shared code
1019 p->alpha -= frametime * 256;
1025 p->vel[2] -= gravity;
1028 p->vel[2] -= gravity * 0.05;
1029 p->alpha -= frametime * 192;
1034 if (cl.time > p->time2)
1036 p->time2 = cl.time + (rand() & 3) * 0.1;
1037 p->vel[0] = (rand()&63)-32 + p->vel2[0];
1038 p->vel[1] = (rand()&63)-32 + p->vel2[1];
1039 p->vel[2] = (rand()&63)-32 + p->vel2[2];
1042 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1044 if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
1048 if (a == CONTENTS_SOLID && Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents == CONTENTS_SOLID)
1049 break; // still in solid
1050 p->die = cl.time + 1000;
1051 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1055 case CONTENTS_SLIME:
1056 p->tex = tex_smoke[rand()&7];
1057 p->orientation = PARTICLE_BILLBOARD;
1064 case CONTENTS_WATER:
1065 p->tex = tex_smoke[rand()&7];
1066 p->orientation = PARTICLE_BILLBOARD;
1067 p->type = pt_splash;
1073 default: // CONTENTS_SOLID and any others
1074 TraceLine(p->oldorg, p->org, v, normal, 0, true);
1075 VectorCopy(v, p->org);
1076 p->tex = tex_smoke[rand()&7];
1077 p->orientation = PARTICLE_BILLBOARD;
1082 VectorClear(p->vel);
1091 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1093 if (a != CONTENTS_EMPTY)
1095 if (a == CONTENTS_WATER || a == CONTENTS_SLIME)
1098 p->scalex += frametime * (cl_particles_blood_size_min.value + cl_particles_blood_size_max.value);
1099 p->scaley += frametime * (cl_particles_blood_size_min.value + cl_particles_blood_size_max.value);
1100 p->alpha -= frametime * max(cl_particles_blood_alpha.value, 0.01f) * 128.0f;
1101 //p->vel[2] += gravity * 0.25f;
1109 p->vel[2] -= gravity;
1112 p->alpha -= frametime * p->time2;
1113 p->vel[2] -= gravity;
1119 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1120 if (content != CONTENTS_EMPTY)
1124 case pt_explosionsplash:
1125 if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
1126 p->vel[2] -= gravity;
1129 p->scalex += frametime * 64.0f;
1130 p->scaley += frametime * 64.0f;
1131 p->alpha -= frametime * 1024.0f;
1136 p->alpha -= frametime * p->time2;
1142 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1143 if (content != CONTENTS_WATER && content != CONTENTS_SLIME)
1148 p->tex = tex_smoke[rand()&7];
1149 p->orientation = PARTICLE_BILLBOARD;
1150 p->type = pt_splashpuff;
1153 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1157 p->vel[0] *= (1 - (frametime * 0.0625));
1158 p->vel[1] *= (1 - (frametime * 0.0625));
1159 p->vel[2] = (p->vel[2] + gravity * 0.25) * (1 - (frametime * 0.0625));
1160 if (cl.time > p->time2)
1162 p->time2 = cl.time + lhrandom(0, 0.5);
1163 p->vel[0] += lhrandom(-32,32);
1164 p->vel[1] += lhrandom(-32,32);
1165 p->vel[2] += lhrandom(-32,32);
1167 p->alpha -= frametime * 256;
1171 case pt_bulletsmoke:
1172 p->scalex += frametime * 16;
1173 p->scaley += frametime * 16;
1174 p->alpha -= frametime * 1024;
1175 p->vel[2] += gravity * 0.2;
1180 p->scalex += frametime * 16;
1181 p->scaley += frametime * 16;
1182 p->alpha -= frametime * 320;
1183 //p->vel[2] += gravity * 0.2;
1188 p->scalex += frametime * 48;
1189 p->scaley += frametime * 48;
1190 p->alpha -= frametime * 512;
1191 p->vel[2] += gravity * 0.05;
1196 p->alpha -= frametime * 1024;
1202 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1204 if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
1208 b = Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents;
1209 VectorCopy(p->oldorg, o);
1213 f = TraceLine(o, p->org, v, normal, a, true);
1214 b = traceline_endcontents;
1215 if (f < 1 && b != CONTENTS_EMPTY && b != CONTENTS_SKY)
1220 p->die = cl.time + 1000;
1221 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1222 VectorCopy(v, p->org);
1226 case CONTENTS_SLIME:
1227 p->tex = tex_smoke[rand()&7];
1228 p->orientation = PARTICLE_BILLBOARD;
1234 default: // water, solid, and anything else
1235 p->tex = tex_rainsplash[0];
1236 p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1238 VectorCopy(normal, p->vel2);
1239 // VectorAdd(p->org, normal, p->org);
1240 p->type = pt_raindropsplash;
1252 case pt_raindropsplash:
1253 p->time2 += frametime * 64.0f;
1254 if (p->time2 >= 16.0f)
1259 p->tex = tex_rainsplash[(int) p->time2];
1260 p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1264 p->alpha -= frametime * 384;
1265 p->vel[2] += gravity;
1275 p->alpha -= frametime * 128;
1276 p->vel[2] -= gravity;
1281 printf("unknown particle type %i\n", p->type);
1286 // LordHavoc: immediate removal of unnecessary particles (must be done to ensure compactor below operates properly in all cases)
1287 if (p->die < cl.time)
1288 freeparticles[j++] = p;
1294 pressureused = true;
1297 // build renderparticle for renderer to use
1298 r->orientation = p->orientation;
1299 r->additive = p->additive;
1300 r->dir[0] = p->vel2[0];
1301 r->dir[1] = p->vel2[1];
1302 r->dir[2] = p->vel2[2];
1303 r->org[0] = p->org[0];
1304 r->org[1] = p->org[1];
1305 r->org[2] = p->org[2];
1307 r->scalex = p->scalex * cl_particles_size.value;
1308 r->scaley = p->scaley * cl_particles_size.value;
1309 r->dynlight = p->dynlight;
1310 r->color[0] = p->color[0] * (1.0f / 255.0f);
1311 r->color[1] = p->color[1] * (1.0f / 255.0f);
1312 r->color[2] = p->color[2] * (1.0f / 255.0f);
1313 r->color[3] = p->alpha * (1.0f / 255.0f);
1318 //r_refdef.numparticles = r - r_refdef.particles;
1319 // fill in gaps to compact the array
1321 while (maxparticle >= activeparticles)
1323 *freeparticles[i++] = particles[maxparticle--];
1324 while (maxparticle >= activeparticles && particles[maxparticle].die < cl.time)
1327 cl_numparticles = activeparticles;
1331 activeparticles = 0;
1332 for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1334 freeparticles[activeparticles++] = p;
1336 if (activeparticles)
1338 for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1340 for (j = 0;j < activeparticles;j++)
1342 if (freeparticles[j] != p)
1344 float dist, diff[3];
1345 VectorSubtract(p->org, freeparticles[j]->org, diff);
1346 dist = DotProduct(diff, diff);
1347 if (dist < 4096 && dist >= 1)
1349 dist = freeparticles[j]->scalex * 4.0f * frametime / sqrt(dist);
1350 VectorMA(p->vel, dist, diff, p->vel);
1351 //dist = freeparticles[j]->scalex * 4.0f * frametime / dist;
1352 //VectorMA(p->vel, dist, freeparticles[j]->vel, p->vel);
1361 static rtexturepool_t *particletexturepool;
1363 static rtexture_t *particlefonttexture;
1364 // [0] is normal, [1] is fog, they may be the same
1365 static particletexture_t particletexture[MAX_PARTICLETEXTURES][2];
1367 static cvar_t r_drawparticles = {0, "r_drawparticles", "1"};
1368 static cvar_t r_particles_lighting = {0, "r_particles_lighting", "1"};
1370 static qbyte shadebubble(float dx, float dy, vec3_t light)
1374 dz = 1 - (dx*dx+dy*dy);
1375 if (dz > 0) // it does hit the sphere
1379 normal[0] = dx;normal[1] = dy;normal[2] = dz;
1380 VectorNormalize(normal);
1381 dot = DotProduct(normal, light);
1382 if (dot > 0.5) // interior reflection
1383 f += ((dot * 2) - 1);
1384 else if (dot < -0.5) // exterior reflection
1385 f += ((dot * -2) - 1);
1387 normal[0] = dx;normal[1] = dy;normal[2] = -dz;
1388 VectorNormalize(normal);
1389 dot = DotProduct(normal, light);
1390 if (dot > 0.5) // interior reflection
1391 f += ((dot * 2) - 1);
1392 else if (dot < -0.5) // exterior reflection
1393 f += ((dot * -2) - 1);
1395 f += 16; // just to give it a haze so you can see the outline
1396 f = bound(0, f, 255);
1403 static void setuptex(int cltexnum, int fog, int rtexnum, qbyte *data, qbyte *particletexturedata)
1405 int basex, basey, y;
1406 basex = ((rtexnum >> 0) & 7) * 32;
1407 basey = ((rtexnum >> 3) & 7) * 32;
1408 particletexture[cltexnum][fog].s1 = (basex + 1) / 256.0f;
1409 particletexture[cltexnum][fog].t1 = (basey + 1) / 256.0f;
1410 particletexture[cltexnum][fog].s2 = (basex + 31) / 256.0f;
1411 particletexture[cltexnum][fog].t2 = (basey + 31) / 256.0f;
1412 for (y = 0;y < 32;y++)
1413 memcpy(particletexturedata + ((basey + y) * 256 + basex) * 4, data + y * 32 * 4, 32 * 4);
1416 static void R_InitParticleTexture (void)
1419 float dx, dy, radius, f, f2;
1420 qbyte data[32][32][4], noise1[64][64], noise2[64][64];
1422 qbyte particletexturedata[256*256*4];
1424 memset(particletexturedata, 255, sizeof(particletexturedata));
1426 // the particletexture[][] array numbers must match the cl_part.c textures
1428 for (i = 0;i < 8;i++)
1432 fractalnoise(&noise1[0][0], 64, 4);
1433 fractalnoise(&noise2[0][0], 64, 8);
1435 for (y = 0;y < 32;y++)
1438 for (x = 0;x < 32;x++)
1440 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1442 d = (noise2[y][x] - 128) * 3 + 192;
1444 d = (d * (256 - (int) (dx*dx+dy*dy))) >> 8;
1445 d = (d * noise1[y][x]) >> 7;
1446 d = bound(0, d, 255);
1447 data[y][x][3] = (qbyte) d;
1455 setuptex(i + 0, 0, i + 0, &data[0][0][0], particletexturedata);
1456 setuptex(i + 0, 1, i + 0, &data[0][0][0], particletexturedata);
1459 for (i = 0;i < 8;i++)
1463 fractalnoise(&noise1[0][0], 64, 4);
1464 fractalnoise(&noise2[0][0], 64, 8);
1466 for (y = 0;y < 32;y++)
1469 for (x = 0;x < 32;x++)
1471 d = (noise1[y][x] - 128) * 2 + 128;
1472 d = bound(0, d, 255);
1473 data[y][x][0] = data[y][x][1] = data[y][x][2] = d;
1475 d = (noise2[y][x] - 128) * 3 + 192;
1477 d = (d * (256 - (int) (dx*dx+dy*dy))) >> 8;
1478 d = bound(0, d, 255);
1479 data[y][x][3] = (qbyte) d;
1487 setuptex(i + 0, 0, i + 0, &data[0][0][0], particletexturedata);
1488 for (y = 0;y < 32;y++)
1489 for (x = 0;x < 32;x++)
1490 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1491 setuptex(i + 0, 1, i + 8, &data[0][0][0], particletexturedata);
1496 for (i = 0;i < 16;i++)
1498 radius = i * 3.0f / 16.0f;
1499 f2 = 255.0f * ((15.0f - i) / 15.0f);
1500 for (y = 0;y < 32;y++)
1502 dy = (y - 16) * 0.25f;
1503 for (x = 0;x < 32;x++)
1505 dx = (x - 16) * 0.25f;
1506 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1507 f = (1.0 - fabs(radius - sqrt(dx*dx+dy*dy))) * f2;
1508 f = bound(0.0f, f, 255.0f);
1509 data[y][x][3] = (int) f;
1512 setuptex(i + 8, 0, i + 16, &data[0][0][0], particletexturedata);
1513 setuptex(i + 8, 1, i + 16, &data[0][0][0], particletexturedata);
1517 for (y = 0;y < 32;y++)
1520 for (x = 0;x < 32;x++)
1522 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1524 d = (256 - (dx*dx+dy*dy));
1525 d = bound(0, d, 255);
1526 data[y][x][3] = (qbyte) d;
1529 setuptex(24, 0, 32, &data[0][0][0], particletexturedata);
1530 setuptex(24, 1, 32, &data[0][0][0], particletexturedata);
1533 light[0] = 1;light[1] = 1;light[2] = 1;
1534 VectorNormalize(light);
1535 for (y = 0;y < 32;y++)
1537 for (x = 0;x < 32;x++)
1539 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1540 data[y][x][3] = shadebubble((x - 16) * (1.0 / 8.0), y < 24 ? (y - 24) * (1.0 / 24.0) : (y - 24) * (1.0 / 8.0), light);
1543 setuptex(25, 0, 33, &data[0][0][0], particletexturedata);
1544 setuptex(25, 1, 33, &data[0][0][0], particletexturedata);
1547 light[0] = 1;light[1] = 1;light[2] = 1;
1548 VectorNormalize(light);
1549 for (y = 0;y < 32;y++)
1551 for (x = 0;x < 32;x++)
1553 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1554 data[y][x][3] = shadebubble((x - 16) * (1.0 / 16.0), (y - 16) * (1.0 / 16.0), light);
1557 setuptex(26, 0, 34, &data[0][0][0], particletexturedata);
1558 setuptex(26, 1, 34, &data[0][0][0], particletexturedata);
1562 for (y = 0;y < 32;y++)
1565 for (x = 0;x < 32;x++)
1568 d = (2048.0f / (dx*dx+dy*dy+1)) - 8.0f;
1569 data[y][x][0] = bound(0, d * 1.0f, 255);
1570 data[y][x][1] = bound(0, d * 0.8f, 255);
1571 data[y][x][2] = bound(0, d * 0.5f, 255);
1572 data[y][x][3] = bound(0, d * 1.0f, 255);
1575 setuptex(27, 0, 35, &data[0][0][0], particletexturedata);
1576 for (y = 0;y < 32;y++)
1577 for (x = 0;x < 32;x++)
1578 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1579 setuptex(28, 1, 36, &data[0][0][0], particletexturedata);
1582 particlefonttexture = R_LoadTexture (particletexturepool, "particlefont", 256, 256, particletexturedata, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE);
1585 static void r_part_start(void)
1587 particletexturepool = R_AllocTexturePool();
1588 R_InitParticleTexture ();
1591 static void r_part_shutdown(void)
1593 R_FreeTexturePool(&particletexturepool);
1596 static void r_part_newmap(void)
1600 void R_Particles_Init (void)
1602 Cvar_RegisterVariable(&r_drawparticles);
1603 Cvar_RegisterVariable(&r_particles_lighting);
1604 R_RegisterModule("R_Particles", r_part_start, r_part_shutdown, r_part_newmap);
1607 int partindexarray[6] = {0, 1, 2, 0, 2, 3};
1609 void R_DrawParticles (void)
1611 //renderparticle_t *r;
1612 int i, lighting, dynlight, additive, texnum, orientation;
1613 float minparticledist, org[3], uprightangles[3], up2[3], right2[3], v[3], right[3], up[3], tvxyz[4][4], tvst[4][2], fog, ifog, fogvec[3];
1615 particletexture_t *tex, *texfog;
1619 // LordHavoc: early out conditions
1620 //if ((!r_refdef.numparticles) || (!r_drawparticles.integer))
1621 if ((!cl_numparticles) || (!r_drawparticles.integer))
1624 lighting = r_particles_lighting.integer;
1625 if (!r_dynamic.integer)
1628 c_particles += cl_numparticles; //r_refdef.numparticles;
1630 uprightangles[0] = 0;
1631 uprightangles[1] = r_refdef.viewangles[1];
1632 uprightangles[2] = 0;
1633 AngleVectors (uprightangles, NULL, right2, up2);
1635 minparticledist = DotProduct(r_origin, vpn) + 16.0f;
1637 // LordHavoc: this meshinfo must match up with R_Mesh_DrawDecal
1638 // LordHavoc: the commented out lines are hardwired behavior in R_Mesh_DrawDecal
1639 memset(&m, 0, sizeof(m));
1640 m.transparent = true;
1641 m.blendfunc1 = GL_SRC_ALPHA;
1642 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1644 m.index = partindexarray;
1646 m.vertex = &tvxyz[0][0];
1647 m.vertexstep = sizeof(float[4]);
1648 m.tex[0] = R_GetTexture(particlefonttexture);
1649 m.texcoords[0] = &tvst[0][0];
1650 m.texcoordstep[0] = sizeof(float[2]);
1652 for (i = 0/*, r = r_refdef.particles*/, p = particles;i < /*r_refdef.numparticles*/cl_numparticles;i++, p++)
1654 // LordHavoc: only render if not too close
1655 if (DotProduct(p->org, vpn) < minparticledist)
1658 // LordHavoc: check if it's in a visible leaf
1659 leaf = Mod_PointInLeaf(p->org, cl.worldmodel);
1660 if (leaf->visframe != r_framecount)
1663 VectorCopy(p->org, org);
1664 orientation = (p->flags >> P_ORIENTATION_FIRSTBIT) & ((1 << P_ORIENTATION_BITS) - 1);
1665 texnum = (p->flags >> P_TEXNUM_FIRSTBIT) & ((1 << P_TEXNUM_BITS) - 1);
1666 dynlight = p->flags & P_DYNLIGHT;
1667 additive = p->flags & P_ADDITIVE;
1668 if (orientation == PARTICLE_BILLBOARD)
1670 VectorScale(vright, p->scalex, right);
1671 VectorScale(vup, p->scaley, up);
1673 else if (orientation == PARTICLE_UPRIGHT_FACING)
1675 VectorScale(right2, p->scalex, right);
1676 VectorScale(up2, p->scaley, up);
1678 else if (orientation == PARTICLE_ORIENTED_DOUBLESIDED)
1681 if (DotProduct(p->vel2, r_origin) > DotProduct(p->vel2, org))
1683 VectorNegate(p->vel2, v);
1684 VectorVectors(v, right, up);
1687 VectorVectors(p->vel2, right, up);
1688 VectorScale(right, p->scalex, right);
1689 VectorScale(up, p->scaley, up);
1692 Host_Error("R_DrawParticles: unknown particle orientation %i\n", orientation);
1694 m.cr = p->color[0] * (1.0f / 255.0f);
1695 m.cg = p->color[1] * (1.0f / 255.0f);
1696 m.cb = p->color[2] * (1.0f / 255.0f);
1697 m.ca = p->alpha * (1.0f / 255.0f);
1698 if (lighting >= 1 && (dynlight || lighting >= 2))
1700 R_CompleteLightPoint(v, org, true, leaf);
1706 tex = &particletexture[texnum][0];
1708 tvxyz[0][0] = org[0] - right[0] - up[0];
1709 tvxyz[0][1] = org[1] - right[1] - up[1];
1710 tvxyz[0][2] = org[2] - right[2] - up[2];
1711 tvxyz[1][0] = org[0] - right[0] + up[0];
1712 tvxyz[1][1] = org[1] - right[1] + up[1];
1713 tvxyz[1][2] = org[2] - right[2] + up[2];
1714 tvxyz[2][0] = org[0] + right[0] + up[0];
1715 tvxyz[2][1] = org[1] + right[1] + up[1];
1716 tvxyz[2][2] = org[2] + right[2] + up[2];
1717 tvxyz[3][0] = org[0] + right[0] - up[0];
1718 tvxyz[3][1] = org[1] + right[1] - up[1];
1719 tvxyz[3][2] = org[2] + right[2] - up[2];
1720 tvst[0][0] = tex->s1;
1721 tvst[0][1] = tex->t1;
1722 tvst[1][0] = tex->s1;
1723 tvst[1][1] = tex->t2;
1724 tvst[2][0] = tex->s2;
1725 tvst[2][1] = tex->t2;
1726 tvst[3][0] = tex->s2;
1727 tvst[3][1] = tex->t1;
1731 m.blendfunc2 = GL_ONE;
1735 texfog = &particletexture[texnum][1];
1736 VectorSubtract(org, r_origin, fogvec);
1737 ifog = 1 - exp(fogdensity/DotProduct(fogvec,fogvec));
1738 if (ifog < (1.0f - (1.0f / 64.0f)))
1740 if (ifog >= (1.0f / 64.0f))
1742 // partially fogged, darken it
1757 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1761 texfog = &particletexture[texnum][1];
1762 VectorSubtract(org, r_origin, fogvec);
1763 fog = exp(fogdensity/DotProduct(fogvec,fogvec));
1764 if (fog >= (1.0f / 64.0f))
1766 if (fog >= (1.0f - (1.0f / 64.0f)))
1768 // fully fogged, just use the fog texture and render as alpha
1772 tvst[0][0] = texfog->s1;
1773 tvst[0][1] = texfog->t1;
1774 tvst[1][0] = texfog->s1;
1775 tvst[1][1] = texfog->t2;
1776 tvst[2][0] = texfog->s2;
1777 tvst[2][1] = texfog->t2;
1778 tvst[3][0] = texfog->s2;
1779 tvst[3][1] = texfog->t1;
1784 // partially fogged, darken the first pass
1789 if (tex->s1 == texfog->s1 && tex->t1 == texfog->t1)
1791 // fog texture is the same as the base, just change the color
1792 m.cr += fogcolor[0] * fog;
1793 m.cg += fogcolor[1] * fog;
1794 m.cb += fogcolor[2] * fog;
1799 // render the first pass (alpha), then do additive fog
1802 m.blendfunc2 = GL_ONE;
1803 m.cr = fogcolor[0] * fog;
1804 m.cg = fogcolor[1] * fog;
1805 m.cb = fogcolor[2] * fog;
1806 tvst[0][0] = texfog->s1;
1807 tvst[0][1] = texfog->t1;
1808 tvst[1][0] = texfog->s1;
1809 tvst[1][1] = texfog->t2;
1810 tvst[2][0] = texfog->s2;
1811 tvst[2][1] = texfog->t2;
1812 tvst[3][0] = texfog->s2;
1813 tvst[3][1] = texfog->t1;