5 typedef struct meshqueue_s
7 struct meshqueue_s *next;
8 void (*callback)(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfaceindices);
9 const entity_render_t *ent;
11 const rtlight_t *rtlight;
16 int trans_sortarraysize;
17 meshqueue_t **trans_hash = NULL;
18 meshqueue_t ***trans_hashpointer = NULL;
19 extern cvar_t r_transparent_sortarraysize;
20 extern cvar_t r_transparent_sortmindist;
21 extern cvar_t r_transparent_sortmaxdist;
23 float mqt_viewplanedist;
24 float mqt_viewmaxdist;
25 meshqueue_t *mqt_array;
29 void R_MeshQueue_BeginScene(void)
32 mqt_viewplanedist = DotProduct(r_refdef.view.origin, r_refdef.view.forward);
36 void R_MeshQueue_AddTransparent(const vec3_t center, void (*callback)(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist), const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
39 if (mqt_count >= mqt_total || !mqt_array)
41 int newtotal = max(1024, mqt_total * 2);
42 meshqueue_t *newarray = (meshqueue_t *)Mem_Alloc(cls.permanentmempool, newtotal * sizeof(meshqueue_t));
45 memcpy(newarray, mqt_array, mqt_total * sizeof(meshqueue_t));
51 mq = &mqt_array[mqt_count++];
52 mq->callback = callback;
54 mq->surfacenumber = surfacenumber;
55 mq->rtlight = rtlight;
56 if (ent && (ent->flags & RENDER_WORLDOBJECT))
57 mq->dist = mqt_viewmaxdist;
59 mq->dist = DotProduct(center, r_refdef.view.forward) - mqt_viewplanedist;
61 mqt_viewmaxdist = max(mqt_viewmaxdist, mq->dist);
64 void R_MeshQueue_RenderTransparent(void)
66 int i, hashindex, maxhashindex, batchnumsurfaces;
68 const entity_render_t *ent;
69 const rtlight_t *rtlight;
70 void (*callback)(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfaceindices);
71 int batchsurfaceindex[MESHQUEUE_TRANSPARENT_BATCHSIZE];
77 // check for bad cvars
78 if (r_transparent_sortarraysize.integer < 1 || r_transparent_sortarraysize.integer > 32768)
79 Cvar_SetValueQuick(&r_transparent_sortarraysize, bound(1, r_transparent_sortarraysize.integer, 32768));
80 if (r_transparent_sortmindist.integer < 1 || r_transparent_sortmindist.integer >= r_transparent_sortmaxdist.integer)
81 Cvar_SetValueQuick(&r_transparent_sortmindist, 0);
82 if (r_transparent_sortmaxdist.integer < r_transparent_sortmindist.integer || r_transparent_sortmaxdist.integer > 32768)
83 Cvar_SetValueQuick(&r_transparent_sortmaxdist, bound(r_transparent_sortmindist.integer, r_transparent_sortmaxdist.integer, 32768));
86 if (trans_sortarraysize != r_transparent_sortarraysize.integer)
88 trans_sortarraysize = r_transparent_sortarraysize.integer;
91 trans_hash = (meshqueue_t **)Mem_Alloc(cls.permanentmempool, sizeof(trans_hash) * trans_sortarraysize);
92 if (trans_hashpointer)
93 Mem_Free(trans_hashpointer);
94 trans_hashpointer = (meshqueue_t ***)Mem_Alloc(cls.permanentmempool, sizeof(trans_hashpointer) * trans_sortarraysize);
98 memset(trans_hash, 0, sizeof(trans_hash) * trans_sortarraysize);
99 for (i = 0; i < trans_sortarraysize; i++)
100 trans_hashpointer[i] = &trans_hash[i];
101 distscale = (trans_sortarraysize - 1) / min(mqt_viewmaxdist, r_transparent_sortmaxdist.integer);
102 maxhashindex = trans_sortarraysize - 1;
103 for (i = 0, mqt = mqt_array; i < mqt_count; i++, mqt++)
105 hashindex = bound(0, (int)(bound(0, mqt->dist - r_transparent_sortmindist.integer, r_transparent_sortmaxdist.integer) * distscale), maxhashindex);
106 // link to tail of hash chain (to preserve render order)
108 *trans_hashpointer[hashindex] = mqt;
109 trans_hashpointer[hashindex] = &mqt->next;
114 batchnumsurfaces = 0;
117 for (i = maxhashindex; i >= 0; i--)
121 for (mqt = trans_hash[i]; mqt; mqt = mqt->next)
123 if (ent != mqt->ent || rtlight != mqt->rtlight || callback != mqt->callback || batchnumsurfaces >= MESHQUEUE_TRANSPARENT_BATCHSIZE)
125 if (batchnumsurfaces)
126 callback(ent, rtlight, batchnumsurfaces, batchsurfaceindex);
127 batchnumsurfaces = 0;
129 rtlight = mqt->rtlight;
130 callback = mqt->callback;
132 batchsurfaceindex[batchnumsurfaces++] = mqt->surfacenumber;
136 if (batchnumsurfaces)
137 callback(ent, rtlight, batchnumsurfaces, batchsurfaceindex);