cvar_t sv_cullentities_trace_delay_players = {0, "sv_cullentities_trace_delay_players", "0.2", "number of seconds until the entity gets actually culled if it is a player entity"};
cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
+cvar_t sv_cullentities_trace_prediction_time = {0, "sv_cullentities_trace_prediction_time", "0.2", "how many seconds of prediction to use"};
+cvar_t sv_cullentities_trace_entityocclusion = {0, "sv_cullentities_trace_entityocclusion", "0", "also check if doors and other bsp models are in the way"};
cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
cvar_t sv_cullentities_trace_samples_extra = {0, "sv_cullentities_trace_samples_extra", "2", "number of samples to test for entity culling when the entity affects its surroundings by e.g. dlight"};
cvar_t sv_cullentities_trace_samples_players = {0, "sv_cullentities_trace_samples_players", "8", "number of samples to test for entity culling when the entity is a player entity"};
Cvar_RegisterVariable (&sv_cullentities_trace_delay);
Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
+ Cvar_RegisterVariable (&sv_cullentities_trace_entityocclusion);
Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
+ Cvar_RegisterVariable (&sv_cullentities_trace_prediction_time);
Cvar_RegisterVariable (&sv_cullentities_trace_samples);
Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
}
}
+#define MAX_LINEOFSIGHTTRACES 64
+
+qboolean SV_CanSeeBox(int numtraces, vec_t enlarge, vec3_t eye, vec3_t entboxmins, vec3_t entboxmaxs)
+{
+ float pitchsign;
+ float alpha;
+ float starttransformed[3], endtransformed[3];
+ int blocked = 0;
+ int traceindex;
+ int originalnumtouchedicts;
+ int numtouchedicts = 0;
+ int touchindex;
+ matrix4x4_t matrix, imatrix;
+ dp_model_t *model;
+ prvm_edict_t *touch;
+ prvm_edict_t *touchedicts[MAX_EDICTS];
+ unsigned int modelindex;
+ vec3_t boxmins, boxmaxs;
+ vec3_t clipboxmins, clipboxmaxs;
+ vec3_t endpoints[MAX_LINEOFSIGHTTRACES];
+
+ numtraces = min(numtraces, MAX_LINEOFSIGHTTRACES);
+
+ // expand the box a little
+ boxmins[0] = (enlarge+1) * entboxmins[0] - enlarge * entboxmaxs[0];
+ boxmaxs[0] = (enlarge+1) * entboxmaxs[0] - enlarge * entboxmins[0];
+ boxmins[1] = (enlarge+1) * entboxmins[1] - enlarge * entboxmaxs[1];
+ boxmaxs[1] = (enlarge+1) * entboxmaxs[1] - enlarge * entboxmins[1];
+ boxmins[2] = (enlarge+1) * entboxmins[2] - enlarge * entboxmaxs[2];
+ boxmaxs[2] = (enlarge+1) * entboxmaxs[2] - enlarge * entboxmins[2];
+
+ VectorMAM(0.5f, boxmins, 0.5f, boxmaxs, endpoints[0]);
+ for (traceindex = 1;traceindex < numtraces;traceindex++)
+ VectorSet(endpoints[traceindex], lhrandom(boxmins[0], boxmaxs[0]), lhrandom(boxmins[1], boxmaxs[1]), lhrandom(boxmins[2], boxmaxs[2]));
+
+ // calculate sweep box for the entire swarm of traces
+ VectorCopy(eye, clipboxmins);
+ VectorCopy(eye, clipboxmaxs);
+ for (traceindex = 0;traceindex < numtraces;traceindex++)
+ {
+ clipboxmins[0] = min(clipboxmins[0], endpoints[traceindex][0]);
+ clipboxmins[1] = min(clipboxmins[1], endpoints[traceindex][1]);
+ clipboxmins[2] = min(clipboxmins[2], endpoints[traceindex][2]);
+ clipboxmaxs[0] = max(clipboxmaxs[0], endpoints[traceindex][0]);
+ clipboxmaxs[1] = max(clipboxmaxs[1], endpoints[traceindex][1]);
+ clipboxmaxs[2] = max(clipboxmaxs[2], endpoints[traceindex][2]);
+ }
+
+ // get the list of entities in the sweep box
+ if (sv_cullentities_trace_entityocclusion.integer)
+ numtouchedicts = World_EntitiesInBox(&sv.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
+ if (numtouchedicts > MAX_EDICTS)
+ {
+ // this never happens
+ Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
+ numtouchedicts = MAX_EDICTS;
+ }
+ // iterate the entities found in the sweep box and filter them
+ originalnumtouchedicts = numtouchedicts;
+ numtouchedicts = 0;
+ for (touchindex = 0;touchindex < originalnumtouchedicts;touchindex++)
+ {
+ touch = touchedicts[touchindex];
+ if (touch->fields.server->solid != SOLID_BSP)
+ continue;
+ modelindex = (unsigned int)touch->fields.server->modelindex;
+ if (!modelindex)
+ continue;
+ if (modelindex >= MAX_MODELS)
+ continue; // error?
+ model = sv.models[(int)touch->fields.server->modelindex];
+ if (!model->brush.TraceLineOfSight)
+ continue;
+ // skip obviously transparent entities
+ alpha = PRVM_EDICTFIELDVALUE(touch, prog->fieldoffsets.alpha)->_float;
+ if (alpha && alpha < 1)
+ continue;
+ if ((int)touch->fields.server->effects & EF_ADDITIVE)
+ continue;
+ touchedicts[numtouchedicts++] = touch;
+ }
+
+ // now that we have a filtered list of "interesting" entities, fire each
+ // ray against all of them, this gives us an early-out case when something
+ // is visible (which it often is)
+
+ for (traceindex = 0;traceindex < numtraces;traceindex++)
+ {
+ // check world occlusion
+ if (sv.worldmodel && sv.worldmodel->brush.TraceLineOfSight)
+ if (!sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, eye, endpoints[traceindex]))
+ continue;
+ for (touchindex = 0;touchindex < numtouchedicts;touchindex++)
+ {
+ touch = touchedicts[touchindex];
+ modelindex = (unsigned int)touch->fields.server->modelindex;
+ model = sv.models[(int)touch->fields.server->modelindex];
+ // get the entity matrix
+ pitchsign = (model->type == mod_alias) ? -1 : 1;
+ Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2], pitchsign * touch->fields.server->angles[0], touch->fields.server->angles[1], touch->fields.server->angles[2], 1);
+ Matrix4x4_Invert_Simple(&imatrix, &matrix);
+ // see if the ray hits this entity
+ Matrix4x4_Transform(&imatrix, eye, starttransformed);
+ Matrix4x4_Transform(&imatrix, endpoints[traceindex], endtransformed);
+ if (!model->brush.TraceLineOfSight(model, starttransformed, endtransformed))
+ {
+ blocked++;
+ break;
+ }
+ }
+ // check if the ray was blocked
+ if (touchindex < numtouchedicts)
+ continue;
+ // return if the ray was not blocked
+ return true;
+ }
+
+ // no rays survived
+ return false;
+}
+
void SV_MarkWriteEntityStateToClient(entity_state_t *s)
{
int isbmodel;
: sv_cullentities_trace_samples.integer;
float enlarge = sv_cullentities_trace_enlarge.value;
- qboolean visible = TRUE;
-
if(samples > 0)
{
- do
- {
- if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
- break; // directly visible from the server's view
-
- if(sv_cullentities_trace_prediction.integer)
- {
- vec3_t predeye;
-
- // get player velocity
- float predtime = bound(0, host_client->ping, 0.2); // / 2
- // sorry, no wallhacking by high ping please, and at 200ms
- // ping a FPS is annoying to play anyway and a player is
- // likely to have changed his direction
- VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
- if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
- {
- if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
- break; // directly visible from the predicted view
- }
- else
- {
- //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
- }
- }
-
- // when we get here, we can't see the entity
- visible = false;
- }
- while(0);
-
- if(visible)
+ int eyeindex;
+ for (eyeindex = 0;eyeindex < sv.writeentitiestoclient_numeyes;eyeindex++)
+ if(SV_CanSeeBox(samples, enlarge, sv.writeentitiestoclient_eyes[eyeindex], ed->priv.server->cullmins, ed->priv.server->cullmaxs))
+ break;
+ if(eyeindex < sv.writeentitiestoclient_numeyes)
svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
realtime + (
s->number <= svs.maxclients
entity_state_t *s;
prvm_edict_t *camera;
qboolean success;
+ vec3_t eye;
// if there isn't enough space to accomplish anything, skip it
if (msg->cursize + 25 > maxsize)
sv.writeentitiestoclient_stats_culled_trace = 0;
sv.writeentitiestoclient_stats_visibleentities = 0;
sv.writeentitiestoclient_stats_totalentities = 0;
+ sv.writeentitiestoclient_numeyes = 0;
-// find the client's PVS
- // the real place being tested from
+ // get eye location
+ sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
camera = PRVM_EDICT_NUM( client->clientcamera );
- VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
+ VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, eye);
sv.writeentitiestoclient_pvsbytes = 0;
+ // get the PVS values for the eye location, later FatPVS calls will merge
if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
- sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
+ sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, eye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), sv.writeentitiestoclient_pvsbytes != 0);
- sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
+ // add the eye to a list for SV_CanSeeBox tests
+ VectorCopy(eye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
+ sv.writeentitiestoclient_numeyes++;
+
+ // calculate predicted eye origin for SV_CanSeeBox tests
+ if (sv_cullentities_trace_prediction.integer)
+ {
+ vec_t predtime = bound(0, host_client->ping, sv_cullentities_trace_prediction_time.value);
+ vec3_t predeye;
+ VectorMA(eye, predtime, camera->fields.server->velocity, predeye);
+ if (SV_CanSeeBox(1, 0, eye, predeye, predeye))
+ {
+ VectorCopy(predeye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
+ sv.writeentitiestoclient_numeyes++;
+ }
+ //if (!sv.writeentitiestoclient_useprediction)
+ // Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
+ }
+
+ // TODO: check line of sight to portal entities and add them to PVS
sv.sententitiesmark++;
projects / xonotic / darkplaces.git / blobdiff