void ClientMap::updateDrawList(video::IVideoDriver* driver, float dtime, unsigned int max_cycle_ms)
{
ScopeProfiler sp(g_profiler, "CM::updateDrawList()", SPT_AVG);
//g_profiler->add("CM::updateDrawList() count", 1);
TimeTaker timer_step("ClientMap::updateDrawList");
INodeDefManager *nodemgr = m_gamedef->ndef();
if (!m_drawlist_last)
m_drawlist_current = !m_drawlist_current;
auto & drawlist = m_drawlist_current ? m_drawlist_1 : m_drawlist_0;
if (!max_cycle_ms)
max_cycle_ms = 300/getControl().fps_wanted;
m_camera_mutex.Lock();
v3f camera_position = m_camera_position;
f32 camera_fov = m_camera_fov;
//v3s16 camera_offset = m_camera_offset;
m_camera_mutex.Unlock();
// Use a higher fov to accomodate faster camera movements.
// Blocks are cropped better when they are drawn.
// Or maybe they aren't? Well whatever.
camera_fov *= 1.2;
v3s16 cam_pos_nodes = floatToInt(camera_position, BS);
v3s16 box_nodes_d = m_control.wanted_range * v3s16(1,1,1);
v3s16 p_nodes_min = cam_pos_nodes - box_nodes_d;
v3s16 p_nodes_max = cam_pos_nodes + box_nodes_d;
// Take a fair amount as we will be dropping more out later
// Umm... these additions are a bit strange but they are needed.
v3s16 p_blocks_min(
p_nodes_min.X / MAP_BLOCKSIZE - 3,
p_nodes_min.Y / MAP_BLOCKSIZE - 3,
p_nodes_min.Z / MAP_BLOCKSIZE - 3);
v3s16 p_blocks_max(
p_nodes_max.X / MAP_BLOCKSIZE + 1,
p_nodes_max.Y / MAP_BLOCKSIZE + 1,
p_nodes_max.Z / MAP_BLOCKSIZE + 1);
// Number of blocks in rendering range
u32 blocks_in_range = 0;
// Number of blocks occlusion culled
u32 blocks_occlusion_culled = 0;
// Number of blocks in rendering range but don't have a mesh
u32 blocks_in_range_without_mesh = 0;
// Blocks that had mesh that would have been drawn according to
// rendering range (if max blocks limit didn't kick in)
u32 blocks_would_have_drawn = 0;
// Blocks that were drawn and had a mesh
u32 blocks_drawn = 0;
// Blocks which had a corresponding meshbuffer for this pass
//u32 blocks_had_pass_meshbuf = 0;
// Blocks from which stuff was actually drawn
//u32 blocks_without_stuff = 0;
// Distance to farthest drawn block
float farthest_drawn = 0;
int m_mesh_queued = 0;
bool free_move = g_settings->getBool("free_move");
float range_max = 100000 * BS;
if(m_control.range_all == false)
range_max = m_control.wanted_range * BS;
if (draw_nearest.empty()) {
//ScopeProfiler sp(g_profiler, "CM::updateDrawList() make list", SPT_AVG);
TimeTaker timer_step("ClientMap::updateDrawList make list");
auto lock = m_blocks.try_lock_shared_rec();
if (!lock->owns_lock())
return;
draw_nearest.clear();
for(auto & ir : m_blocks) {
auto bp = ir.first;
if(m_control.range_all == false)
{
if(bp.X < p_blocks_min.X
|| bp.X > p_blocks_max.X
|| bp.Z > p_blocks_max.Z
|| bp.Z < p_blocks_min.Z
|| bp.Y < p_blocks_min.Y
|| bp.Y > p_blocks_max.Y)
continue;
}
v3s16 blockpos_nodes = bp * MAP_BLOCKSIZE;
// Block center position
v3f blockpos(
((float)blockpos_nodes.X + MAP_BLOCKSIZE/2) * BS,
((float)blockpos_nodes.Y + MAP_BLOCKSIZE/2) * BS,
((float)blockpos_nodes.Z + MAP_BLOCKSIZE/2) * BS
);
f32 d = radius_box(blockpos, camera_position); //blockpos_relative.getLength();
if (d> range_max)
continue;
int range = d / (MAP_BLOCKSIZE * BS);
draw_nearest.emplace_back(std::make_pair(bp, range));
}
}
const int maxq = 1000;
// No occlusion culling when free_move is on and camera is
// inside ground
bool occlusion_culling_enabled = true;
if(free_move) {
MapNode n = getNodeNoEx(cam_pos_nodes);
if(n.getContent() == CONTENT_IGNORE ||
nodemgr->get(n).solidness == 2)
occlusion_culling_enabled = false;
}
u32 calls = 0, end_ms = porting::getTimeMs() + u32(max_cycle_ms);
std::unordered_map<v3POS, bool, v3POSHash, v3POSEqual> occlude_cache;
while (!draw_nearest.empty()) {
auto ir = draw_nearest.back();
auto bp = ir.first;
int range = ir.second;
draw_nearest.pop_back();
++calls;
//auto block = getBlockNoCreateNoEx(bp);
auto block = m_blocks.get(bp);
if (!block)
continue;
int mesh_step = getFarmeshStep(m_control, getNodeBlockPos(cam_pos_nodes), bp);
/*
Compare block position to camera position, skip
if not seen on display
*/
auto mesh = block->getMesh(mesh_step);
if (mesh)
mesh->updateCameraOffset(m_camera_offset);
blocks_in_range++;
auto smesh_size = block->mesh_size;
/*
Ignore if mesh doesn't exist
*/
{
if(!mesh) {
blocks_in_range_without_mesh++;
if (m_mesh_queued < maxq || range <= 2) {
m_client->addUpdateMeshTask(bp, false);
++m_mesh_queued;
}
continue;
}
if(mesh_step == mesh->step && block->getTimestamp() <= mesh->timestamp && !smesh_size) {
blocks_in_range_without_mesh++;
continue;
}
}
/*
Occlusion culling
*/
v3s16 cpn = bp * MAP_BLOCKSIZE;
cpn += v3s16(MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2, MAP_BLOCKSIZE/2);
float step = BS*1;
float stepfac = 1.2;
float startoff = BS*1;
float endoff = -BS*MAP_BLOCKSIZE; //*1.42; //*1.42;
v3s16 spn = cam_pos_nodes + v3s16(0,0,0);
s16 bs2 = MAP_BLOCKSIZE/2 + 1;
u32 needed_count = 1;
if( range > 1 && smesh_size &&
occlusion_culling_enabled &&
isOccluded(this, spn, cpn + v3s16(0,0,0),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(bs2,bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(bs2,bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(bs2,-bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(bs2,-bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(-bs2,bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(-bs2,bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache) &&
isOccluded(this, spn, cpn + v3s16(-bs2,-bs2,-bs2),
step, stepfac, startoff, endoff, needed_count, nodemgr, occlude_cache)
)
{
blocks_occlusion_culled++;
continue;
}
// This block is in range. Reset usage timer.
block->resetUsageTimer();
// Limit block count in case of a sudden increase
blocks_would_have_drawn++;
/*
if(blocks_drawn >= m_control.wanted_max_blocks
&& m_control.range_all == false
&& d > m_control.wanted_min_range * BS)
continue;
*/
if (mesh_step != mesh->step && (m_mesh_queued < maxq*1.2 || range <= 2)) {
m_client->addUpdateMeshTask(bp);
++m_mesh_queued;
}
if (block->getTimestamp() > mesh->timestamp + (smesh_size ? 0 : range >= 1 ? 60 : 5) && (m_mesh_queued < maxq*1.5 || range <= 2)) {
m_client->addUpdateMeshTaskWithEdge(bp);
++m_mesh_queued;
}
if(!smesh_size)
continue;
mesh->incrementUsageTimer(dtime);
// Add to set
//block->refGrab();
block->resetUsageTimer();
drawlist.set(bp, block);
blocks_drawn++;
if(range * MAP_BLOCKSIZE > farthest_drawn)
farthest_drawn = range * MAP_BLOCKSIZE;
if (farthest_drawn > m_control.farthest_drawn)
m_control.farthest_drawn = farthest_drawn;
if (porting::getTimeMs() > end_ms) {
break;
}
}
m_drawlist_last = draw_nearest.size();
//if (m_drawlist_last) infostream<<"breaked UDL "<<m_drawlist_last<<" collected="<<drawlist.size()<<" calls="<<calls<<" s="<<m_blocks.size()<<" maxms="<<max_cycle_ms<<" fw="<<getControl().fps_wanted<<" morems="<<porting::getTimeMs() - end_ms<< " meshq="<<m_mesh_queued<<" occache="<<occlude_cache.size()<<std::endl;
if (m_drawlist_last)
return;
//for (auto & ir : *m_drawlist)
// ir.second->refDrop();
auto m_drawlist_old = !m_drawlist_current ? &m_drawlist_1 : &m_drawlist_0;
m_drawlist = m_drawlist_current ? &m_drawlist_1 : &m_drawlist_0;
m_drawlist_old->clear();
m_control.blocks_would_have_drawn = blocks_would_have_drawn;
m_control.blocks_drawn = blocks_drawn;
m_control.farthest_drawn = farthest_drawn;
g_profiler->avg("CM: blocks total", m_blocks.size());
g_profiler->avg("CM: blocks in range", blocks_in_range);
g_profiler->avg("CM: blocks occlusion culled", blocks_occlusion_culled);
if(blocks_in_range != 0)
g_profiler->avg("CM: blocks in range without mesh (frac)",
(float)blocks_in_range_without_mesh/blocks_in_range);
g_profiler->avg("CM: blocks drawn", blocks_drawn);
g_profiler->avg("CM: farthest drawn", farthest_drawn);
g_profiler->avg("CM: wanted max blocks", m_control.wanted_max_blocks);
}
u32 Map::timerUpdate(float uptime, float unload_timeout, u32 max_loaded_blocks,
unsigned int max_cycle_ms,
std::vector<v3POS> *unloaded_blocks) {
bool save_before_unloading = (mapType() == MAPTYPE_SERVER);
// Profile modified reasons
Profiler modprofiler;
if (/*!m_blocks_update_last && */ m_blocks_delete->size() > 1000) {
m_blocks_delete = (m_blocks_delete == &m_blocks_delete_1 ? &m_blocks_delete_2 : &m_blocks_delete_1);
verbosestream << "Deleting blocks=" << m_blocks_delete->size() << std::endl;
for (auto & ir : *m_blocks_delete)
delete ir.first;
m_blocks_delete->clear();
getBlockCacheFlush();
}
u32 deleted_blocks_count = 0;
u32 saved_blocks_count = 0;
u32 block_count_all = 0;
u32 n = 0, calls = 0, end_ms = porting::getTimeMs() + max_cycle_ms;
std::vector<MapBlockP> blocks_delete;
int save_started = 0;
{
auto lock = m_blocks.try_lock_shared_rec();
if (!lock->owns_lock())
return m_blocks_update_last;
#if !ENABLE_THREADS
auto lock_map = m_nothread_locker.try_lock_unique_rec();
if (!lock_map->owns_lock())
return m_blocks_update_last;
#endif
for(auto ir : m_blocks) {
if (n++ < m_blocks_update_last) {
continue;
} else {
m_blocks_update_last = 0;
}
++calls;
auto block = ir.second;
if (!block)
continue;
{
auto lock = block->try_lock_unique_rec();
if (!lock->owns_lock())
continue;
if(block->getUsageTimer() > unload_timeout) { // block->refGet() <= 0 &&
v3POS p = block->getPos();
//infostream<<" deleting block p="<<p<<" ustimer="<<block->getUsageTimer() <<" to="<< unload_timeout<<" inc="<<(uptime - block->m_uptime_timer_last)<<" state="<<block->getModified()<<std::endl;
// Save if modified
if (block->getModified() != MOD_STATE_CLEAN && save_before_unloading) {
//modprofiler.add(block->getModifiedReasonString(), 1);
if(!save_started++)
beginSave();
if (!saveBlock(block))
continue;
saved_blocks_count++;
}
blocks_delete.push_back(block);
if(unloaded_blocks)
unloaded_blocks->push_back(p);
deleted_blocks_count++;
} else {
#ifndef SERVER
if (block->mesh_old)
block->mesh_old = nullptr;
#endif
if (!block->m_uptime_timer_last) // not very good place, but minimum modifications
block->m_uptime_timer_last = uptime - 0.1;
block->incrementUsageTimer(uptime - block->m_uptime_timer_last);
block->m_uptime_timer_last = uptime;
block_count_all++;
/*#ifndef SERVER
if(block->refGet() == 0 && block->getUsageTimer() >
g_settings->getFloat("unload_unused_meshes_timeout"))
{
if(block->mesh){
delete block->mesh;
block->mesh = NULL;
}
}
#endif*/
}
} // block lock
if (porting::getTimeMs() > end_ms) {
m_blocks_update_last = n;
break;
}
}
}
if(save_started)
endSave();
if (!calls)
m_blocks_update_last = 0;
for (auto & block : blocks_delete)
this->deleteBlock(block);
// Finally delete the empty sectors
if(deleted_blocks_count != 0) {
if (m_blocks_update_last)
infostream << "ServerMap: timerUpdate(): Blocks processed:" << calls << "/" << m_blocks.size() << " to " << m_blocks_update_last << std::endl;
PrintInfo(infostream); // ServerMap/ClientMap:
infostream << "Unloaded " << deleted_blocks_count << "/" << (block_count_all + deleted_blocks_count)
<< " blocks from memory";
infostream << " (deleteq1=" << m_blocks_delete_1.size() << " deleteq2=" << m_blocks_delete_2.size() << ")";
if(saved_blocks_count)
infostream << ", of which " << saved_blocks_count << " were written";
/*
infostream<<", "<<block_count_all<<" blocks in memory";
*/
infostream << "." << std::endl;
if(saved_blocks_count != 0) {
PrintInfo(infostream); // ServerMap/ClientMap:
//infostream<<"Blocks modified by: "<<std::endl;
modprofiler.print(infostream);
}
}
return m_blocks_update_last;
}
