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.
22 #include "cl_collision.h"
24 #define MAX_PARTICLES 16384 // default max # of particles at one time
25 #define ABSOLUTE_MIN_PARTICLES 512 // no fewer than this no matter what's on the command line
29 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
33 #define P_TEXNUM_FIRSTBIT 0
34 #define P_TEXNUM_BITS 6
35 #define P_ORIENTATION_FIRSTBIT (P_TEXNUM_FIRSTBIT + P_TEXNUM_BITS)
36 #define P_ORIENTATION_BITS 2
37 #define P_FLAGS_FIRSTBIT (P_ORIENTATION_FIRSTBIT + P_ORIENTATION_BITS)
38 #define P_DYNLIGHT (1 << (P_FLAGS_FIRSTBIT + 0))
39 #define P_ADDITIVE (1 << (P_FLAGS_FIRSTBIT + 1))
41 typedef struct particle_s
44 unsigned int flags; // dynamically lit, orientation, additive blending, texnum
51 float time2; // used for various things (snow fluttering, for example)
52 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)
54 vec3_t vel2; // used for snow fluttering (base velocity, wind for instance)
55 float friction; // how much air friction affects this object (objects with a low mass/size ratio tend to get more air friction)
56 float pressure; // if non-zero, apply pressure to other particles
61 static int particlepalette[256] =
63 0x000000,0x0f0f0f,0x1f1f1f,0x2f2f2f,0x3f3f3f,0x4b4b4b,0x5b5b5b,0x6b6b6b,
64 0x7b7b7b,0x8b8b8b,0x9b9b9b,0xababab,0xbbbbbb,0xcbcbcb,0xdbdbdb,0xebebeb,
65 0x0f0b07,0x170f0b,0x1f170b,0x271b0f,0x2f2313,0x372b17,0x3f2f17,0x4b371b,
66 0x533b1b,0x5b431f,0x634b1f,0x6b531f,0x73571f,0x7b5f23,0x836723,0x8f6f23,
67 0x0b0b0f,0x13131b,0x1b1b27,0x272733,0x2f2f3f,0x37374b,0x3f3f57,0x474767,
68 0x4f4f73,0x5b5b7f,0x63638b,0x6b6b97,0x7373a3,0x7b7baf,0x8383bb,0x8b8bcb,
69 0x000000,0x070700,0x0b0b00,0x131300,0x1b1b00,0x232300,0x2b2b07,0x2f2f07,
70 0x373707,0x3f3f07,0x474707,0x4b4b0b,0x53530b,0x5b5b0b,0x63630b,0x6b6b0f,
71 0x070000,0x0f0000,0x170000,0x1f0000,0x270000,0x2f0000,0x370000,0x3f0000,
72 0x470000,0x4f0000,0x570000,0x5f0000,0x670000,0x6f0000,0x770000,0x7f0000,
73 0x131300,0x1b1b00,0x232300,0x2f2b00,0x372f00,0x433700,0x4b3b07,0x574307,
74 0x5f4707,0x6b4b0b,0x77530f,0x835713,0x8b5b13,0x975f1b,0xa3631f,0xaf6723,
75 0x231307,0x2f170b,0x3b1f0f,0x4b2313,0x572b17,0x632f1f,0x733723,0x7f3b2b,
76 0x8f4333,0x9f4f33,0xaf632f,0xbf772f,0xcf8f2b,0xdfab27,0xefcb1f,0xfff31b,
77 0x0b0700,0x1b1300,0x2b230f,0x372b13,0x47331b,0x533723,0x633f2b,0x6f4733,
78 0x7f533f,0x8b5f47,0x9b6b53,0xa77b5f,0xb7876b,0xc3937b,0xd3a38b,0xe3b397,
79 0xab8ba3,0x9f7f97,0x937387,0x8b677b,0x7f5b6f,0x775363,0x6b4b57,0x5f3f4b,
80 0x573743,0x4b2f37,0x43272f,0x371f23,0x2b171b,0x231313,0x170b0b,0x0f0707,
81 0xbb739f,0xaf6b8f,0xa35f83,0x975777,0x8b4f6b,0x7f4b5f,0x734353,0x6b3b4b,
82 0x5f333f,0x532b37,0x47232b,0x3b1f23,0x2f171b,0x231313,0x170b0b,0x0f0707,
83 0xdbc3bb,0xcbb3a7,0xbfa39b,0xaf978b,0xa3877b,0x977b6f,0x876f5f,0x7b6353,
84 0x6b5747,0x5f4b3b,0x533f33,0x433327,0x372b1f,0x271f17,0x1b130f,0x0f0b07,
85 0x6f837b,0x677b6f,0x5f7367,0x576b5f,0x4f6357,0x475b4f,0x3f5347,0x374b3f,
86 0x2f4337,0x2b3b2f,0x233327,0x1f2b1f,0x172317,0x0f1b13,0x0b130b,0x070b07,
87 0xfff31b,0xefdf17,0xdbcb13,0xcbb70f,0xbba70f,0xab970b,0x9b8307,0x8b7307,
88 0x7b6307,0x6b5300,0x5b4700,0x4b3700,0x3b2b00,0x2b1f00,0x1b0f00,0x0b0700,
89 0x0000ff,0x0b0bef,0x1313df,0x1b1bcf,0x2323bf,0x2b2baf,0x2f2f9f,0x2f2f8f,
90 0x2f2f7f,0x2f2f6f,0x2f2f5f,0x2b2b4f,0x23233f,0x1b1b2f,0x13131f,0x0b0b0f,
91 0x2b0000,0x3b0000,0x4b0700,0x5f0700,0x6f0f00,0x7f1707,0x931f07,0xa3270b,
92 0xb7330f,0xc34b1b,0xcf632b,0xdb7f3b,0xe3974f,0xe7ab5f,0xefbf77,0xf7d38b,
93 0xa77b3b,0xb79b37,0xc7c337,0xe7e357,0x7fbfff,0xabe7ff,0xd7ffff,0x670000,
94 0x8b0000,0xb30000,0xd70000,0xff0000,0xfff393,0xfff7c7,0xffffff,0x9f5b53
97 static int explosparkramp[8] = {0x4b0700, 0x6f0f00, 0x931f07, 0xb7330f, 0xcf632b, 0xe3974f, 0xffe7b5, 0xffffff};
98 //static int explounderwatersparkramp[8] = {0x00074b, 0x000f6f, 0x071f93, 0x0f33b7, 0x2b63cf, 0x4f97e3, 0xb5e7ff, 0xffffff};
100 // these must match r_part.c's textures
101 static const int tex_smoke[8] = {0, 1, 2, 3, 4, 5, 6, 7};
102 static const int tex_rainsplash[16] = {8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23};
103 static const int tex_particle = 24;
104 static const int tex_rain = 25;
105 static const int tex_bubble = 26;
106 //static const int tex_rocketglow = 27;
108 static int cl_maxparticles;
109 static int cl_numparticles;
110 static particle_t *particles;
111 static particle_t **freeparticles; // list used only in compacting particles array
112 //static renderparticle_t *cl_renderparticles;
114 static cvar_t cl_particles = {CVAR_SAVE, "cl_particles", "1"};
115 static cvar_t cl_particles_size = {CVAR_SAVE, "cl_particles_size", "1"};
116 static cvar_t cl_particles_bloodshowers = {CVAR_SAVE, "cl_particles_bloodshowers", "1"};
117 static cvar_t cl_particles_blood = {CVAR_SAVE, "cl_particles_blood", "1"};
118 static cvar_t cl_particles_blood_size_min = {CVAR_SAVE, "cl_particles_blood_size_min", "5"};
119 static cvar_t cl_particles_blood_size_max = {CVAR_SAVE, "cl_particles_blood_size_max", "10"};
120 static cvar_t cl_particles_blood_alpha = {CVAR_SAVE, "cl_particles_blood_alpha", "0.5"};
121 static cvar_t cl_particles_smoke = {CVAR_SAVE, "cl_particles_smoke", "1"};
122 static cvar_t cl_particles_sparks = {CVAR_SAVE, "cl_particles_sparks", "1"};
123 static cvar_t cl_particles_bubbles = {CVAR_SAVE, "cl_particles_bubbles", "1"};
124 static cvar_t cl_particles_explosions = {CVAR_SAVE, "cl_particles_explosions", "0"};
126 static mempool_t *cl_part_mempool;
128 void CL_Particles_Clear(void)
138 void CL_ReadPointFile_f (void);
139 void CL_Particles_Init (void)
143 i = COM_CheckParm ("-particles");
147 cl_maxparticles = (int)(atoi(com_argv[i+1]));
148 if (cl_maxparticles < ABSOLUTE_MIN_PARTICLES)
149 cl_maxparticles = ABSOLUTE_MIN_PARTICLES;
152 cl_maxparticles = MAX_PARTICLES;
154 Cmd_AddCommand ("pointfile", CL_ReadPointFile_f);
156 Cvar_RegisterVariable (&cl_particles);
157 Cvar_RegisterVariable (&cl_particles_size);
158 Cvar_RegisterVariable (&cl_particles_bloodshowers);
159 Cvar_RegisterVariable (&cl_particles_blood);
160 Cvar_RegisterVariable (&cl_particles_blood_size_min);
161 Cvar_RegisterVariable (&cl_particles_blood_size_max);
162 Cvar_RegisterVariable (&cl_particles_blood_alpha);
163 Cvar_RegisterVariable (&cl_particles_smoke);
164 Cvar_RegisterVariable (&cl_particles_sparks);
165 Cvar_RegisterVariable (&cl_particles_bubbles);
166 Cvar_RegisterVariable (&cl_particles_explosions);
168 cl_part_mempool = Mem_AllocPool("CL_Part");
169 particles = (particle_t *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t));
170 freeparticles = (void *) Mem_Alloc(cl_part_mempool, cl_maxparticles * sizeof(particle_t *));
173 // FIXME: r_refdef stuff should be allocated somewhere else?
174 //r_refdef.particles = cl_renderparticles = Mem_Alloc(cl_refdef_mempool, cl_maxparticles * sizeof(renderparticle_t));
177 #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)\
179 if (cl_numparticles >= cl_maxparticles)\
183 int tempcolor, tempcolor2, cr1, cg1, cb1, cr2, cg2, cb2;\
184 unsigned int partflags;\
185 partflags = ((porientation) << P_ORIENTATION_FIRSTBIT) | ((ptex) << P_TEXNUM_FIRSTBIT);\
187 partflags |= P_ADDITIVE;\
189 partflags |= P_DYNLIGHT;\
190 tempcolor = (pcolor1);\
191 tempcolor2 = (pcolor2);\
192 cr2 = ((tempcolor2) >> 16) & 0xFF;\
193 cg2 = ((tempcolor2) >> 8) & 0xFF;\
194 cb2 = (tempcolor2) & 0xFF;\
195 if (tempcolor != tempcolor2)\
197 cr1 = ((tempcolor) >> 16) & 0xFF;\
198 cg1 = ((tempcolor) >> 8) & 0xFF;\
199 cb1 = (tempcolor) & 0xFF;\
200 tempcolor = rand() & 0xFF;\
201 cr2 = (((cr2 - cr1) * tempcolor) >> 8) + cr1;\
202 cg2 = (((cg2 - cg1) * tempcolor) >> 8) + cg1;\
203 cb2 = (((cb2 - cb1) * tempcolor) >> 8) + cb1;\
205 part = &particles[cl_numparticles++];\
206 part->type = (ptype);\
207 part->color[0] = cr2;\
208 part->color[1] = cg2;\
209 part->color[2] = cb2;\
210 part->color[3] = 0xFF;\
211 part->flags = partflags;\
212 /*part->tex = (ptex);*/\
213 /*part->orientation = (porientation);*/\
214 /*part->dynlight = (plight);*/\
215 /*part->additive = (padditive);*/\
216 part->scalex = (pscalex);\
217 part->scaley = (pscaley);\
218 part->alpha = (palpha);\
219 part->die = cl.time + (ptime);\
220 part->bounce = (pbounce);\
221 part->org[0] = (px);\
222 part->org[1] = (py);\
223 part->org[2] = (pz);\
224 part->vel[0] = (pvx);\
225 part->vel[1] = (pvy);\
226 part->vel[2] = (pvz);\
227 part->time2 = (ptime2);\
228 part->vel2[0] = (pvx2);\
229 part->vel2[1] = (pvy2);\
230 part->vel2[2] = (pvz2);\
231 part->friction = (pfriction);\
232 part->pressure = (ppressure);\
241 void CL_EntityParticles (entity_t *ent)
245 float sp, sy, cp, cy;
249 static vec3_t avelocities[NUMVERTEXNORMALS];
250 if (!cl_particles.integer) return;
255 if (!avelocities[0][0])
256 for (i=0 ; i<NUMVERTEXNORMALS*3 ; i++)
257 avelocities[0][i] = (rand()&255) * 0.01;
259 for (i=0 ; i<NUMVERTEXNORMALS ; i++)
261 angle = cl.time * avelocities[i][0];
264 angle = cl.time * avelocities[i][1];
272 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);
277 void CL_ReadPointFile_f (void)
281 char *pointfile, *pointfilepos, *t, tchar;
283 pointfile = COM_LoadFile(va("maps/%s.pts", sv.name), true);
286 Con_Printf ("couldn't open %s.pts\n", sv.name);
290 Con_Printf ("Reading %s.pts...\n", sv.name);
292 pointfilepos = pointfile;
293 while (*pointfilepos)
295 while (*pointfilepos == '\n' || *pointfilepos == '\r')
300 while (*t && *t != '\n' && *t != '\r')
304 r = sscanf (pointfilepos,"%f %f %f", &org[0], &org[1], &org[2]);
311 if (cl_numparticles >= cl_maxparticles)
313 Con_Printf ("Not enough free particles\n");
316 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);
320 Con_Printf ("%i points read\n", c);
325 CL_ParseParticleEffect
327 Parse an effect out of the server message
330 void CL_ParseParticleEffect (void)
333 int i, count, msgcount, color;
335 for (i=0 ; i<3 ; i++)
336 org[i] = MSG_ReadCoord ();
337 for (i=0 ; i<3 ; i++)
338 dir[i] = MSG_ReadChar () * (1.0/16);
339 msgcount = MSG_ReadByte ();
340 color = MSG_ReadByte ();
347 CL_RunParticleEffect (org, dir, color, count);
356 void CL_ParticleExplosion (vec3_t org, int smoke)
359 R_Stain(org, 96, 80, 80, 80, 128, 176, 176, 176, 128);
361 i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
362 if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
363 for (i = 0;i < 128;i++)
364 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);
366 if (cl_particles.integer && cl_particles_explosions.integer)
371 qbyte noise1[32*32], noise2[32*32];
373 VectorClear(end); // hush MSVC
374 i = Mod_PointInLeaf(org, cl.worldmodel)->contents;
375 if (i == CONTENTS_SLIME || i == CONTENTS_WATER)
377 //for (i = 0;i < 128;i++)
378 // 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);
380 ang[2] = lhrandom(0, 360);
381 fractalnoisequick(noise1, 32, 4);
382 fractalnoisequick(noise2, 32, 8);
383 for (i = 0;i < 32;i++)
385 for (j = 0;j < 32;j++)
388 VectorMA(org, 16, v, v);
389 CL_TraceLine(org, v, end, NULL, 0, true);
390 ang[0] = (j + 0.5f) * (360.0f / 32.0f);
391 ang[1] = (i + 0.5f) * (360.0f / 32.0f);
392 AngleVectors(ang, v, NULL, NULL);
393 f = noise1[j*32+i] * 1.5f;
394 VectorScale(v, f, v);
395 k = noise2[j*32+i] * 0x010101;
396 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);
397 VectorScale(v, 0.75, v);
398 k = explosparkramp[(noise2[j*32+i] >> 5)];
399 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);
405 ang[2] = lhrandom(0, 360);
406 fractalnoisequick(noise1, 32, 4);
407 fractalnoisequick(noise2, 32, 8);
408 for (i = 0;i < 32;i++)
410 for (j = 0;j < 32;j++)
413 VectorMA(org, 16, v, v);
414 CL_TraceLine(org, v, end, NULL, 0, true);
415 ang[0] = (j + 0.5f) * (360.0f / 32.0f);
416 ang[1] = (i + 0.5f) * (360.0f / 32.0f);
417 AngleVectors(ang, v, NULL, NULL);
418 f = noise1[j*32+i] * 1.5f;
419 VectorScale(v, f, v);
420 k = noise2[j*32+i] * 0x010101;
421 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);
422 VectorScale(v, 0.75, v);
423 k = explosparkramp[(noise2[j*32+i] >> 5)];
424 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);
426 // VectorScale(v, 384, v);
427 // 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);
437 for (i = 0;i < 256;i++)
443 while(DotProduct(v,v) < 0.75);
444 VectorScale(v, 512, v);
445 k = explosparkramp[rand()&7];
446 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);
455 CL_ParticleExplosion2
459 void CL_ParticleExplosion2 (vec3_t org, int colorStart, int colorLength)
462 if (!cl_particles.integer) return;
464 for (i = 0;i < 512;i++)
466 k = particlepalette[colorStart + (i % colorLength)];
467 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);
477 void CL_BlobExplosion (vec3_t org)
480 if (!cl_particles.integer) return;
482 R_Stain(org, 96, 80, 80, 80, 128, 176, 176, 176, 128);
483 //R_Stain(org, 96, 96, 64, 96, 128, 160, 128, 160, 128);
487 //for (i = 0;i < 256;i++)
488 // 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);
489 //for (i = 0;i < 256;i++)
490 // 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);
499 void CL_RunParticleEffect (vec3_t org, vec3_t dir, int color, int count)
502 if (!cl_particles.integer) return;
506 CL_ParticleExplosion(org, false);
511 k = particlepalette[color + (rand()&7)];
512 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);
516 // LordHavoc: added this for spawning sparks/dust (which have strong gravity)
522 void CL_SparkShower (vec3_t org, vec3_t dir, int count)
525 if (!cl_particles.integer) return;
527 R_Stain(org, 32, 96, 96, 96, 32, 128, 128, 128, 32);
530 if (cl_particles_smoke.integer)
531 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);
533 if (cl_particles_sparks.integer)
538 k = particlepalette[0x68 + (rand() & 7)];
539 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);
544 void CL_PlasmaBurn (vec3_t org)
546 if (!cl_particles.integer) return;
548 R_Stain(org, 48, 96, 96, 96, 48, 128, 128, 128, 48);
551 void CL_BloodPuff (vec3_t org, vec3_t vel, int count)
554 // bloodcount is used to accumulate counts too small to cause a blood particle
555 static int bloodcount = 0;
556 if (!cl_particles.integer) return;
557 if (!cl_particles_blood.integer) return;
564 while(bloodcount > 0)
566 r = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
567 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);
572 void CL_BloodShower (vec3_t mins, vec3_t maxs, float velspeed, int count)
576 vec3_t diff, center, velscale;
577 if (!cl_particles.integer) return;
578 if (!cl_particles_bloodshowers.integer) return;
579 if (!cl_particles_blood.integer) return;
581 VectorSubtract(maxs, mins, diff);
582 center[0] = (mins[0] + maxs[0]) * 0.5;
583 center[1] = (mins[1] + maxs[1]) * 0.5;
584 center[2] = (mins[2] + maxs[2]) * 0.5;
585 // FIXME: change velspeed back to 2.0x after fixing mod
586 velscale[0] = velspeed * 2.0 / diff[0];
587 velscale[1] = velspeed * 2.0 / diff[1];
588 velscale[2] = velspeed * 2.0 / diff[2];
594 org[0] = lhrandom(mins[0], maxs[0]);
595 org[1] = lhrandom(mins[1], maxs[1]);
596 org[2] = lhrandom(mins[2], maxs[2]);
597 vel[0] = (org[0] - center[0]) * velscale[0];
598 vel[1] = (org[1] - center[1]) * velscale[1];
599 vel[2] = (org[2] - center[2]) * velscale[2];
600 r = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
602 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);
606 void CL_ParticleCube (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int gravity, int randomvel)
610 if (!cl_particles.integer) return;
611 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
612 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
613 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
617 k = particlepalette[colorbase + (rand()&3)];
618 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);
622 void CL_ParticleRain (vec3_t mins, vec3_t maxs, vec3_t dir, int count, int colorbase, int type)
627 if (!cl_particles.integer) return;
628 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
629 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
630 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
631 if (dir[2] < 0) // falling
633 t = (maxs[2] - mins[2]) / -dir[2];
638 t = (maxs[2] - mins[2]) / dir[2];
641 if (t < 0 || t > 2) // sanity check
647 count *= 4; // ick, this should be in the mod or maps?
651 vel[0] = dir[0] + lhrandom(-16, 16);
652 vel[1] = dir[1] + lhrandom(-16, 16);
653 vel[2] = dir[2] + lhrandom(-32, 32);
654 k = particlepalette[colorbase + (rand()&3)];
655 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);
661 vel[0] = dir[0] + lhrandom(-16, 16);
662 vel[1] = dir[1] + lhrandom(-16, 16);
663 vel[2] = dir[2] + lhrandom(-32, 32);
664 k = particlepalette[colorbase + (rand()&3)];
665 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);
669 Host_Error("CL_ParticleRain: unknown type %i (0 = rain, 1 = snow)\n", type);
673 void CL_Stardust (vec3_t mins, vec3_t maxs, int count)
678 //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);
679 if (!cl_particles.integer) return;
681 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
682 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
683 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
685 center[0] = (mins[0] + maxs[0]) * 0.5f;
686 center[1] = (mins[1] + maxs[1]) * 0.5f;
687 center[2] = (mins[2] + maxs[2]) * 0.5f;
691 k = particlepalette[224 + (rand()&15)];
692 o[0] = lhrandom(mins[0], maxs[0]);
693 o[1] = lhrandom(mins[1], maxs[1]);
694 o[2] = lhrandom(mins[2], maxs[2]);
695 VectorSubtract(o, center, v);
696 VectorNormalizeFast(v);
697 VectorScale(v, 100, v);
698 v[2] += sv_gravity.value * 0.15f;
699 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);
703 void CL_FlameCube (vec3_t mins, vec3_t maxs, int count)
707 if (!cl_particles.integer) return;
708 if (maxs[0] <= mins[0]) {t = mins[0];mins[0] = maxs[0];maxs[0] = t;}
709 if (maxs[1] <= mins[1]) {t = mins[1];mins[1] = maxs[1];maxs[1] = t;}
710 if (maxs[2] <= mins[2]) {t = mins[2];mins[2] = maxs[2];maxs[2] = t;}
714 k = particlepalette[224 + (rand()&15)];
715 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);
719 void CL_Flames (vec3_t org, vec3_t vel, int count)
722 if (!cl_particles.integer) return;
726 k = particlepalette[224 + (rand()&15)];
727 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);
739 void CL_LavaSplash (vec3_t origin)
744 if (!cl_particles.integer) return;
746 for (i=-128 ; i<128 ; i+=16)
748 for (j=-128 ; j<128 ; j+=16)
750 dir[0] = j + lhrandom(0, 8);
751 dir[1] = i + lhrandom(0, 8);
753 org[0] = origin[0] + dir[0];
754 org[1] = origin[1] + dir[1];
755 org[2] = origin[2] + lhrandom(0, 64);
756 vel = lhrandom(50, 120) / VectorLength(dir); // normalize and scale
757 k = particlepalette[224 + (rand()&7)];
758 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);
769 void CL_TeleportSplash (vec3_t org)
772 if (!cl_particles.integer) return;
774 for (i=-16 ; i<16 ; i+=8)
775 for (j=-16 ; j<16 ; j+=8)
776 for (k=-24 ; k<32 ; k+=8)
777 //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);
778 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);
781 void CL_RocketTrail (vec3_t start, vec3_t end, int type, entity_t *ent)
783 vec3_t vec, dir, vel, pos;
784 float len, dec, speed;
785 int contents, bubbles;
786 if (!cl_particles.integer) return;
788 VectorSubtract(end, start, dir);
789 VectorNormalize(dir);
791 //if (type == 0 && host_frametime != 0) // rocket glow
792 // 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);
794 VectorSubtract (end, start, vec);
795 len = VectorNormalizeLength (vec);
796 dec = -ent->persistent.trail_time;
797 ent->persistent.trail_time += len;
798 if (ent->persistent.trail_time < 0.01f)
801 speed = 1.0f / (ent->state_current.time - ent->state_previous.time);
802 VectorSubtract(ent->state_current.origin, ent->state_previous.origin, vel);
803 VectorScale(vel, speed, vel);
805 // advance into this frame to reach the first puff location
806 VectorMA(start, dec, vec, pos);
809 // if we skip out, leave it reset
810 ent->persistent.trail_time = 0.0f;
812 contents = Mod_PointInLeaf(pos, cl.worldmodel)->contents;
813 if (contents == CONTENTS_SKY || contents == CONTENTS_LAVA)
816 bubbles = (contents == CONTENTS_WATER || contents == CONTENTS_SLIME);
822 case 0: // rocket trail
823 if (!cl_particles_smoke.integer)
826 //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);
828 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);
829 //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);
831 //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);
832 if (bubbles && cl_particles_bubbles.integer)
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);
835 //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);
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, 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);
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);
844 //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);
848 case 1: // grenade trail
849 // FIXME: make it gradually stop smoking
850 if (!cl_particles_smoke.integer)
853 //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);
855 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);
856 //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);
857 if (bubbles && cl_particles_bubbles.integer)
859 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);
860 //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);
866 if (!cl_particles_blood.integer)
868 dec = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
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], 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);
870 //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);
871 //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);
874 case 4: // slight blood
875 if (!cl_particles_blood.integer)
877 dec = lhrandom(cl_particles_blood_size_min.value, cl_particles_blood_size_max.value);
878 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);
879 //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);
880 //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);
883 case 3: // green tracer
885 //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);
886 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);
889 case 5: // flame tracer
891 //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);
892 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);
895 case 6: // voor trail
897 //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);
898 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);
901 case 7: // Nehahra smoke tracer
902 if (!cl_particles_smoke.integer)
905 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);
909 // advance to next time and position
911 VectorMA (pos, dec, vec, pos);
913 ent->persistent.trail_time = len;
916 void CL_RocketTrail2 (vec3_t start, vec3_t end, int color, entity_t *ent)
920 if (!cl_particles.integer) return;
921 if (!cl_particles_smoke.integer) return;
923 VectorCopy(start, pos);
924 VectorSubtract (end, start, vec);
925 len = (int) (VectorNormalizeLength (vec) * (1.0f / 3.0f));
926 VectorScale(vec, 3, vec);
927 color = particlepalette[color];
930 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);
931 VectorAdd (pos, vec, pos);
941 void CL_MoveParticles (void)
944 //renderparticle_t *r, *rend;
945 int i, activeparticles, maxparticle, j, a, pressureused = false, content;
946 float gravity, dvel, frametime, f, dist, normal[3], v[3], org[3];
948 // LordHavoc: early out condition
949 if (!cl_numparticles)
951 //r_refdef.numparticles = 0;
955 frametime = cl.time - cl.oldtime;
957 return; // if absolutely still, don't update particles
958 gravity = frametime * sv_gravity.value;
959 dvel = 1+4*frametime;
964 for (i = 0, p = particles/*, r = r_refdef.particles, rend = r + cl_maxparticles*/;i < cl_numparticles;i++, p++)
966 if (p->die < cl.time)
968 freeparticles[j++] = p;
973 VectorCopy(p->org, p->oldorg);
974 VectorMA(p->org, frametime, p->vel, p->org);
975 VectorCopy(p->org, org);
978 if (CL_TraceLine(p->oldorg, p->org, v, normal, 0, true) < 1)
980 VectorCopy(v, p->org);
983 // assume it's blood (lame, but...)
984 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));
986 freeparticles[j++] = p;
991 dist = DotProduct(p->vel, normal) * -p->bounce;
992 VectorMA(p->vel, dist, normal, p->vel);
993 if (DotProduct(p->vel, p->vel) < 0.03)
1000 f = p->friction * frametime;
1002 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1003 if (content != CONTENTS_EMPTY)
1006 VectorScale(p->vel, f, p->vel);
1014 // LordHavoc: drop-through because of shared code
1020 p->alpha -= frametime * 256;
1026 p->vel[2] -= gravity;
1029 p->vel[2] -= gravity * 0.05;
1030 p->alpha -= frametime * 192;
1035 if (cl.time > p->time2)
1037 p->time2 = cl.time + (rand() & 3) * 0.1;
1038 p->vel[0] = (rand()&63)-32 + p->vel2[0];
1039 p->vel[1] = (rand()&63)-32 + p->vel2[1];
1040 p->vel[2] = (rand()&63)-32 + p->vel2[2];
1043 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1045 if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
1049 if (a == CONTENTS_SOLID && Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents == CONTENTS_SOLID)
1050 break; // still in solid
1051 p->die = cl.time + 1000;
1052 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1056 case CONTENTS_SLIME:
1057 p->tex = tex_smoke[rand()&7];
1058 p->orientation = PARTICLE_BILLBOARD;
1065 case CONTENTS_WATER:
1066 p->tex = tex_smoke[rand()&7];
1067 p->orientation = PARTICLE_BILLBOARD;
1068 p->type = pt_splash;
1074 default: // CONTENTS_SOLID and any others
1075 TraceLine(p->oldorg, p->org, v, normal, 0, true);
1076 VectorCopy(v, p->org);
1077 p->tex = tex_smoke[rand()&7];
1078 p->orientation = PARTICLE_BILLBOARD;
1083 VectorClear(p->vel);
1092 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1094 if (a != CONTENTS_EMPTY)
1096 if (a == CONTENTS_WATER || a == CONTENTS_SLIME)
1099 p->scalex += frametime * (cl_particles_blood_size_min.value + cl_particles_blood_size_max.value);
1100 p->scaley += frametime * (cl_particles_blood_size_min.value + cl_particles_blood_size_max.value);
1101 p->alpha -= frametime * max(cl_particles_blood_alpha.value, 0.01f) * 128.0f;
1102 //p->vel[2] += gravity * 0.25f;
1110 p->vel[2] -= gravity;
1113 p->alpha -= frametime * p->time2;
1114 p->vel[2] -= gravity;
1120 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1121 if (content != CONTENTS_EMPTY)
1125 case pt_explosionsplash:
1126 if (Mod_PointInLeaf(p->org, cl.worldmodel)->contents == CONTENTS_EMPTY)
1127 p->vel[2] -= gravity;
1130 p->scalex += frametime * 64.0f;
1131 p->scaley += frametime * 64.0f;
1132 p->alpha -= frametime * 1024.0f;
1137 p->alpha -= frametime * p->time2;
1143 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1144 if (content != CONTENTS_WATER && content != CONTENTS_SLIME)
1149 p->tex = tex_smoke[rand()&7];
1150 p->orientation = PARTICLE_BILLBOARD;
1151 p->type = pt_splashpuff;
1154 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1158 p->vel[0] *= (1 - (frametime * 0.0625));
1159 p->vel[1] *= (1 - (frametime * 0.0625));
1160 p->vel[2] = (p->vel[2] + gravity * 0.25) * (1 - (frametime * 0.0625));
1161 if (cl.time > p->time2)
1163 p->time2 = cl.time + lhrandom(0, 0.5);
1164 p->vel[0] += lhrandom(-32,32);
1165 p->vel[1] += lhrandom(-32,32);
1166 p->vel[2] += lhrandom(-32,32);
1168 p->alpha -= frametime * 256;
1172 case pt_bulletsmoke:
1173 p->scalex += frametime * 16;
1174 p->scaley += frametime * 16;
1175 p->alpha -= frametime * 1024;
1176 p->vel[2] += gravity * 0.2;
1181 p->scalex += frametime * 16;
1182 p->scaley += frametime * 16;
1183 p->alpha -= frametime * 320;
1184 //p->vel[2] += gravity * 0.2;
1189 p->scalex += frametime * 48;
1190 p->scaley += frametime * 48;
1191 p->alpha -= frametime * 512;
1192 p->vel[2] += gravity * 0.05;
1197 p->alpha -= frametime * 1024;
1203 content = Mod_PointInLeaf(p->org, cl.worldmodel)->contents;
1205 if (a != CONTENTS_EMPTY && a != CONTENTS_SKY)
1209 b = Mod_PointInLeaf(p->oldorg, cl.worldmodel)->contents;
1210 VectorCopy(p->oldorg, o);
1214 f = TraceLine(o, p->org, v, normal, a, true);
1215 b = cl_traceline_endcontents;
1216 if (f < 1 && b != CONTENTS_EMPTY && b != CONTENTS_SKY)
1221 p->die = cl.time + 1000;
1222 p->vel[0] = p->vel[1] = p->vel[2] = 0;
1223 VectorCopy(v, p->org);
1227 case CONTENTS_SLIME:
1228 p->tex = tex_smoke[rand()&7];
1229 p->orientation = PARTICLE_BILLBOARD;
1235 default: // water, solid, and anything else
1236 p->tex = tex_rainsplash[0];
1237 p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1239 VectorCopy(normal, p->vel2);
1240 // VectorAdd(p->org, normal, p->org);
1241 p->type = pt_raindropsplash;
1253 case pt_raindropsplash:
1254 p->time2 += frametime * 64.0f;
1255 if (p->time2 >= 16.0f)
1260 p->tex = tex_rainsplash[(int) p->time2];
1261 p->orientation = PARTICLE_ORIENTED_DOUBLESIDED;
1265 p->alpha -= frametime * 384;
1266 p->vel[2] += gravity;
1276 p->alpha -= frametime * 128;
1277 p->vel[2] -= gravity;
1282 printf("unknown particle type %i\n", p->type);
1287 // LordHavoc: immediate removal of unnecessary particles (must be done to ensure compactor below operates properly in all cases)
1288 if (p->die < cl.time)
1289 freeparticles[j++] = p;
1295 pressureused = true;
1298 // build renderparticle for renderer to use
1299 r->orientation = p->orientation;
1300 r->additive = p->additive;
1301 r->dir[0] = p->vel2[0];
1302 r->dir[1] = p->vel2[1];
1303 r->dir[2] = p->vel2[2];
1304 r->org[0] = p->org[0];
1305 r->org[1] = p->org[1];
1306 r->org[2] = p->org[2];
1308 r->scalex = p->scalex * cl_particles_size.value;
1309 r->scaley = p->scaley * cl_particles_size.value;
1310 r->dynlight = p->dynlight;
1311 r->color[0] = p->color[0] * (1.0f / 255.0f);
1312 r->color[1] = p->color[1] * (1.0f / 255.0f);
1313 r->color[2] = p->color[2] * (1.0f / 255.0f);
1314 r->color[3] = p->alpha * (1.0f / 255.0f);
1319 //r_refdef.numparticles = r - r_refdef.particles;
1320 // fill in gaps to compact the array
1322 while (maxparticle >= activeparticles)
1324 *freeparticles[i++] = particles[maxparticle--];
1325 while (maxparticle >= activeparticles && particles[maxparticle].die < cl.time)
1328 cl_numparticles = activeparticles;
1332 activeparticles = 0;
1333 for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1335 freeparticles[activeparticles++] = p;
1337 if (activeparticles)
1339 for (i = 0, p = particles;i < cl_numparticles;i++, p++)
1341 for (j = 0;j < activeparticles;j++)
1343 if (freeparticles[j] != p)
1345 float dist, diff[3];
1346 VectorSubtract(p->org, freeparticles[j]->org, diff);
1347 dist = DotProduct(diff, diff);
1348 if (dist < 4096 && dist >= 1)
1350 dist = freeparticles[j]->scalex * 4.0f * frametime / sqrt(dist);
1351 VectorMA(p->vel, dist, diff, p->vel);
1352 //dist = freeparticles[j]->scalex * 4.0f * frametime / dist;
1353 //VectorMA(p->vel, dist, freeparticles[j]->vel, p->vel);
1362 static rtexturepool_t *particletexturepool;
1364 static rtexture_t *particlefonttexture;
1365 // [0] is normal, [1] is fog, they may be the same
1366 static particletexture_t particletexture[MAX_PARTICLETEXTURES][2];
1368 static cvar_t r_drawparticles = {0, "r_drawparticles", "1"};
1369 static cvar_t r_particles_lighting = {0, "r_particles_lighting", "1"};
1371 static qbyte shadebubble(float dx, float dy, vec3_t light)
1375 dz = 1 - (dx*dx+dy*dy);
1376 if (dz > 0) // it does hit the sphere
1380 normal[0] = dx;normal[1] = dy;normal[2] = dz;
1381 VectorNormalize(normal);
1382 dot = DotProduct(normal, light);
1383 if (dot > 0.5) // interior reflection
1384 f += ((dot * 2) - 1);
1385 else if (dot < -0.5) // exterior reflection
1386 f += ((dot * -2) - 1);
1388 normal[0] = dx;normal[1] = dy;normal[2] = -dz;
1389 VectorNormalize(normal);
1390 dot = DotProduct(normal, light);
1391 if (dot > 0.5) // interior reflection
1392 f += ((dot * 2) - 1);
1393 else if (dot < -0.5) // exterior reflection
1394 f += ((dot * -2) - 1);
1396 f += 16; // just to give it a haze so you can see the outline
1397 f = bound(0, f, 255);
1404 static void setuptex(int cltexnum, int fog, int rtexnum, qbyte *data, qbyte *particletexturedata)
1406 int basex, basey, y;
1407 basex = ((rtexnum >> 0) & 7) * 32;
1408 basey = ((rtexnum >> 3) & 7) * 32;
1409 particletexture[cltexnum][fog].s1 = (basex + 1) / 256.0f;
1410 particletexture[cltexnum][fog].t1 = (basey + 1) / 256.0f;
1411 particletexture[cltexnum][fog].s2 = (basex + 31) / 256.0f;
1412 particletexture[cltexnum][fog].t2 = (basey + 31) / 256.0f;
1413 for (y = 0;y < 32;y++)
1414 memcpy(particletexturedata + ((basey + y) * 256 + basex) * 4, data + y * 32 * 4, 32 * 4);
1417 static void R_InitParticleTexture (void)
1420 float dx, dy, radius, f, f2;
1421 qbyte data[32][32][4], noise1[64][64], noise2[64][64];
1423 qbyte particletexturedata[256*256*4];
1425 memset(particletexturedata, 255, sizeof(particletexturedata));
1427 // the particletexture[][] array numbers must match the cl_part.c textures
1429 for (i = 0;i < 8;i++)
1433 fractalnoise(&noise1[0][0], 64, 4);
1434 fractalnoise(&noise2[0][0], 64, 8);
1436 for (y = 0;y < 32;y++)
1439 for (x = 0;x < 32;x++)
1441 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1443 d = (noise2[y][x] - 128) * 3 + 192;
1445 d = (d * (256 - (int) (dx*dx+dy*dy))) >> 8;
1446 d = (d * noise1[y][x]) >> 7;
1447 d = bound(0, d, 255);
1448 data[y][x][3] = (qbyte) d;
1456 setuptex(i + 0, 0, i + 0, &data[0][0][0], particletexturedata);
1457 setuptex(i + 0, 1, i + 0, &data[0][0][0], particletexturedata);
1460 for (i = 0;i < 8;i++)
1464 fractalnoise(&noise1[0][0], 64, 4);
1465 fractalnoise(&noise2[0][0], 64, 8);
1467 for (y = 0;y < 32;y++)
1470 for (x = 0;x < 32;x++)
1472 d = (noise1[y][x] - 128) * 2 + 128;
1473 d = bound(0, d, 255);
1474 data[y][x][0] = data[y][x][1] = data[y][x][2] = d;
1476 d = (noise2[y][x] - 128) * 3 + 192;
1478 d = (d * (256 - (int) (dx*dx+dy*dy))) >> 8;
1479 d = bound(0, d, 255);
1480 data[y][x][3] = (qbyte) d;
1488 setuptex(i + 0, 0, i + 0, &data[0][0][0], particletexturedata);
1489 for (y = 0;y < 32;y++)
1490 for (x = 0;x < 32;x++)
1491 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1492 setuptex(i + 0, 1, i + 8, &data[0][0][0], particletexturedata);
1497 for (i = 0;i < 16;i++)
1499 radius = i * 3.0f / 16.0f;
1500 f2 = 255.0f * ((15.0f - i) / 15.0f);
1501 for (y = 0;y < 32;y++)
1503 dy = (y - 16) * 0.25f;
1504 for (x = 0;x < 32;x++)
1506 dx = (x - 16) * 0.25f;
1507 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1508 f = (1.0 - fabs(radius - sqrt(dx*dx+dy*dy))) * f2;
1509 f = bound(0.0f, f, 255.0f);
1510 data[y][x][3] = (int) f;
1513 setuptex(i + 8, 0, i + 16, &data[0][0][0], particletexturedata);
1514 setuptex(i + 8, 1, i + 16, &data[0][0][0], particletexturedata);
1518 for (y = 0;y < 32;y++)
1521 for (x = 0;x < 32;x++)
1523 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1525 d = (256 - (dx*dx+dy*dy));
1526 d = bound(0, d, 255);
1527 data[y][x][3] = (qbyte) d;
1530 setuptex(24, 0, 32, &data[0][0][0], particletexturedata);
1531 setuptex(24, 1, 32, &data[0][0][0], particletexturedata);
1534 light[0] = 1;light[1] = 1;light[2] = 1;
1535 VectorNormalize(light);
1536 for (y = 0;y < 32;y++)
1538 for (x = 0;x < 32;x++)
1540 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1541 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);
1544 setuptex(25, 0, 33, &data[0][0][0], particletexturedata);
1545 setuptex(25, 1, 33, &data[0][0][0], particletexturedata);
1548 light[0] = 1;light[1] = 1;light[2] = 1;
1549 VectorNormalize(light);
1550 for (y = 0;y < 32;y++)
1552 for (x = 0;x < 32;x++)
1554 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1555 data[y][x][3] = shadebubble((x - 16) * (1.0 / 16.0), (y - 16) * (1.0 / 16.0), light);
1558 setuptex(26, 0, 34, &data[0][0][0], particletexturedata);
1559 setuptex(26, 1, 34, &data[0][0][0], particletexturedata);
1563 for (y = 0;y < 32;y++)
1566 for (x = 0;x < 32;x++)
1569 d = (2048.0f / (dx*dx+dy*dy+1)) - 8.0f;
1570 data[y][x][0] = bound(0, d * 1.0f, 255);
1571 data[y][x][1] = bound(0, d * 0.8f, 255);
1572 data[y][x][2] = bound(0, d * 0.5f, 255);
1573 data[y][x][3] = bound(0, d * 1.0f, 255);
1576 setuptex(27, 0, 35, &data[0][0][0], particletexturedata);
1577 for (y = 0;y < 32;y++)
1578 for (x = 0;x < 32;x++)
1579 data[y][x][0] = data[y][x][1] = data[y][x][2] = 255;
1580 setuptex(28, 1, 36, &data[0][0][0], particletexturedata);
1583 particlefonttexture = R_LoadTexture (particletexturepool, "particlefont", 256, 256, particletexturedata, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE);
1586 static void r_part_start(void)
1588 particletexturepool = R_AllocTexturePool();
1589 R_InitParticleTexture ();
1592 static void r_part_shutdown(void)
1594 R_FreeTexturePool(&particletexturepool);
1597 static void r_part_newmap(void)
1601 void R_Particles_Init (void)
1603 Cvar_RegisterVariable(&r_drawparticles);
1604 Cvar_RegisterVariable(&r_particles_lighting);
1605 R_RegisterModule("R_Particles", r_part_start, r_part_shutdown, r_part_newmap);
1608 int partindexarray[6] = {0, 1, 2, 0, 2, 3};
1610 void R_DrawParticles (void)
1612 //renderparticle_t *r;
1613 int i, lighting, dynlight, additive, texnum, orientation;
1614 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];
1616 particletexture_t *tex, *texfog;
1620 // LordHavoc: early out conditions
1621 //if ((!r_refdef.numparticles) || (!r_drawparticles.integer))
1622 if ((!cl_numparticles) || (!r_drawparticles.integer))
1625 lighting = r_particles_lighting.integer;
1626 if (!r_dynamic.integer)
1629 c_particles += cl_numparticles; //r_refdef.numparticles;
1631 uprightangles[0] = 0;
1632 uprightangles[1] = r_refdef.viewangles[1];
1633 uprightangles[2] = 0;
1634 AngleVectors (uprightangles, NULL, right2, up2);
1636 minparticledist = DotProduct(r_origin, vpn) + 16.0f;
1638 // LordHavoc: this meshinfo must match up with R_Mesh_DrawDecal
1639 // LordHavoc: the commented out lines are hardwired behavior in R_Mesh_DrawDecal
1640 memset(&m, 0, sizeof(m));
1641 m.transparent = true;
1642 m.blendfunc1 = GL_SRC_ALPHA;
1643 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1645 m.index = partindexarray;
1647 m.vertex = &tvxyz[0][0];
1648 m.vertexstep = sizeof(float[4]);
1649 m.tex[0] = R_GetTexture(particlefonttexture);
1650 m.texcoords[0] = &tvst[0][0];
1651 m.texcoordstep[0] = sizeof(float[2]);
1653 for (i = 0/*, r = r_refdef.particles*/, p = particles;i < /*r_refdef.numparticles*/cl_numparticles;i++, p++)
1655 // LordHavoc: only render if not too close
1656 if (DotProduct(p->org, vpn) < minparticledist)
1659 // LordHavoc: check if it's in a visible leaf
1660 leaf = Mod_PointInLeaf(p->org, cl.worldmodel);
1661 if (leaf->visframe != r_framecount)
1664 VectorCopy(p->org, org);
1665 orientation = (p->flags >> P_ORIENTATION_FIRSTBIT) & ((1 << P_ORIENTATION_BITS) - 1);
1666 texnum = (p->flags >> P_TEXNUM_FIRSTBIT) & ((1 << P_TEXNUM_BITS) - 1);
1667 dynlight = p->flags & P_DYNLIGHT;
1668 additive = p->flags & P_ADDITIVE;
1669 if (orientation == PARTICLE_BILLBOARD)
1671 VectorScale(vright, p->scalex, right);
1672 VectorScale(vup, p->scaley, up);
1674 else if (orientation == PARTICLE_UPRIGHT_FACING)
1676 VectorScale(right2, p->scalex, right);
1677 VectorScale(up2, p->scaley, up);
1679 else if (orientation == PARTICLE_ORIENTED_DOUBLESIDED)
1682 if (DotProduct(p->vel2, r_origin) > DotProduct(p->vel2, org))
1684 VectorNegate(p->vel2, v);
1685 VectorVectors(v, right, up);
1688 VectorVectors(p->vel2, right, up);
1689 VectorScale(right, p->scalex, right);
1690 VectorScale(up, p->scaley, up);
1693 Host_Error("R_DrawParticles: unknown particle orientation %i\n", orientation);
1695 m.cr = p->color[0] * (1.0f / 255.0f);
1696 m.cg = p->color[1] * (1.0f / 255.0f);
1697 m.cb = p->color[2] * (1.0f / 255.0f);
1698 m.ca = p->alpha * (1.0f / 255.0f);
1699 if (lighting >= 1 && (dynlight || lighting >= 2))
1701 R_CompleteLightPoint(v, org, true, leaf);
1707 tex = &particletexture[texnum][0];
1709 tvxyz[0][0] = org[0] - right[0] - up[0];
1710 tvxyz[0][1] = org[1] - right[1] - up[1];
1711 tvxyz[0][2] = org[2] - right[2] - up[2];
1712 tvxyz[1][0] = org[0] - right[0] + up[0];
1713 tvxyz[1][1] = org[1] - right[1] + up[1];
1714 tvxyz[1][2] = org[2] - right[2] + up[2];
1715 tvxyz[2][0] = org[0] + right[0] + up[0];
1716 tvxyz[2][1] = org[1] + right[1] + up[1];
1717 tvxyz[2][2] = org[2] + right[2] + up[2];
1718 tvxyz[3][0] = org[0] + right[0] - up[0];
1719 tvxyz[3][1] = org[1] + right[1] - up[1];
1720 tvxyz[3][2] = org[2] + right[2] - up[2];
1721 tvst[0][0] = tex->s1;
1722 tvst[0][1] = tex->t1;
1723 tvst[1][0] = tex->s1;
1724 tvst[1][1] = tex->t2;
1725 tvst[2][0] = tex->s2;
1726 tvst[2][1] = tex->t2;
1727 tvst[3][0] = tex->s2;
1728 tvst[3][1] = tex->t1;
1732 m.blendfunc2 = GL_ONE;
1736 texfog = &particletexture[texnum][1];
1737 VectorSubtract(org, r_origin, fogvec);
1738 ifog = 1 - exp(fogdensity/DotProduct(fogvec,fogvec));
1739 if (ifog < (1.0f - (1.0f / 64.0f)))
1741 if (ifog >= (1.0f / 64.0f))
1743 // partially fogged, darken it
1758 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
1762 texfog = &particletexture[texnum][1];
1763 VectorSubtract(org, r_origin, fogvec);
1764 fog = exp(fogdensity/DotProduct(fogvec,fogvec));
1765 if (fog >= (1.0f / 64.0f))
1767 if (fog >= (1.0f - (1.0f / 64.0f)))
1769 // fully fogged, just use the fog texture and render as alpha
1773 tvst[0][0] = texfog->s1;
1774 tvst[0][1] = texfog->t1;
1775 tvst[1][0] = texfog->s1;
1776 tvst[1][1] = texfog->t2;
1777 tvst[2][0] = texfog->s2;
1778 tvst[2][1] = texfog->t2;
1779 tvst[3][0] = texfog->s2;
1780 tvst[3][1] = texfog->t1;
1785 // partially fogged, darken the first pass
1790 if (tex->s1 == texfog->s1 && tex->t1 == texfog->t1)
1792 // fog texture is the same as the base, just change the color
1793 m.cr += fogcolor[0] * fog;
1794 m.cg += fogcolor[1] * fog;
1795 m.cb += fogcolor[2] * fog;
1800 // render the first pass (alpha), then do additive fog
1803 m.blendfunc2 = GL_ONE;
1804 m.cr = fogcolor[0] * fog;
1805 m.cg = fogcolor[1] * fog;
1806 m.cb = fogcolor[2] * fog;
1807 tvst[0][0] = texfog->s1;
1808 tvst[0][1] = texfog->t1;
1809 tvst[1][0] = texfog->s1;
1810 tvst[1][1] = texfog->t2;
1811 tvst[2][0] = texfog->s2;
1812 tvst[2][1] = texfog->t2;
1813 tvst[3][0] = texfog->s2;
1814 tvst[3][1] = texfog->t1;