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minetest/src/client/clientmap.cpp

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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "clientmap.h"
#include "client.h"
#include "mapblock_mesh.h"
#include <IMaterialRenderer.h>
#include <matrix4.h>
#include "mapsector.h"
#include "mapblock.h"
#include "profiler.h"
#include "settings.h"
#include "camera.h" // CameraModes
#include "util/basic_macros.h"
#include <algorithm>
#include "client/renderingengine.h"
// struct MeshBufListList
void MeshBufListList::clear()
{
for (auto &list : lists)
list.clear();
}
void MeshBufListList::add(scene::IMeshBuffer *buf, v3s16 position, u8 layer)
{
// Append to the correct layer
std::vector<MeshBufList> &list = lists[layer];
const video::SMaterial &m = buf->getMaterial();
for (MeshBufList &l : list) {
// comparing a full material is quite expensive so we don't do it if
// not even first texture is equal
if (l.m.TextureLayer[0].Texture != m.TextureLayer[0].Texture)
continue;
if (l.m == m) {
l.bufs.emplace_back(position, buf);
return;
}
}
MeshBufList l;
l.m = m;
l.bufs.emplace_back(position, buf);
list.emplace_back(l);
}
// ClientMap
ClientMap::ClientMap(
Client *client,
RenderingEngine *rendering_engine,
MapDrawControl &control,
s32 id
):
Map(client),
scene::ISceneNode(rendering_engine->get_scene_manager()->getRootSceneNode(),
rendering_engine->get_scene_manager(), id),
m_client(client),
m_rendering_engine(rendering_engine),
m_control(control)
{
/*
* @Liso: Sadly C++ doesn't have introspection, so the only way we have to know
* the class is whith a name ;) Name property cames from ISceneNode base class.
*/
Name = "ClientMap";
m_box = aabb3f(-BS*1000000,-BS*1000000,-BS*1000000,
BS*1000000,BS*1000000,BS*1000000);
/* TODO: Add a callback function so these can be updated when a setting
* changes. At this point in time it doesn't matter (e.g. /set
* is documented to change server settings only)
*
* TODO: Local caching of settings is not optimal and should at some stage
* be updated to use a global settings object for getting thse values
* (as opposed to the this local caching). This can be addressed in
* a later release.
*/
m_cache_trilinear_filter = g_settings->getBool("trilinear_filter");
m_cache_bilinear_filter = g_settings->getBool("bilinear_filter");
m_cache_anistropic_filter = g_settings->getBool("anisotropic_filter");
}
MapSector * ClientMap::emergeSector(v2s16 p2d)
{
// Check that it doesn't exist already
MapSector *sector = getSectorNoGenerate(p2d);
// Create it if it does not exist yet
if (!sector) {
sector = new MapSector(this, p2d, m_gamedef);
m_sectors[p2d] = sector;
}
return sector;
}
void ClientMap::OnRegisterSceneNode()
{
if(IsVisible)
{
SceneManager->registerNodeForRendering(this, scene::ESNRP_SOLID);
SceneManager->registerNodeForRendering(this, scene::ESNRP_TRANSPARENT);
}
ISceneNode::OnRegisterSceneNode();
if (!m_added_to_shadow_renderer) {
m_added_to_shadow_renderer = true;
if (auto shadows = m_rendering_engine->get_shadow_renderer())
shadows->addNodeToShadowList(this);
}
}
void ClientMap::getBlocksInViewRange(v3s16 cam_pos_nodes,
v3s16 *p_blocks_min, v3s16 *p_blocks_max, float range)
{
if (range <= 0.0f)
range = m_control.wanted_range;
v3s16 box_nodes_d = range * v3s16(1, 1, 1);
// Define p_nodes_min/max as v3s32 because 'cam_pos_nodes -/+ box_nodes_d'
// can exceed the range of v3s16 when a large view range is used near the
// world edges.
v3s32 p_nodes_min(
cam_pos_nodes.X - box_nodes_d.X,
cam_pos_nodes.Y - box_nodes_d.Y,
cam_pos_nodes.Z - box_nodes_d.Z);
v3s32 p_nodes_max(
cam_pos_nodes.X + box_nodes_d.X,
cam_pos_nodes.Y + box_nodes_d.Y,
cam_pos_nodes.Z + box_nodes_d.Z);
// Take a fair amount as we will be dropping more out later
// Umm... these additions are a bit strange but they are needed.
*p_blocks_min = v3s16(
p_nodes_min.X / MAP_BLOCKSIZE - 3,
p_nodes_min.Y / MAP_BLOCKSIZE - 3,
p_nodes_min.Z / MAP_BLOCKSIZE - 3);
*p_blocks_max = v3s16(
p_nodes_max.X / MAP_BLOCKSIZE + 1,
p_nodes_max.Y / MAP_BLOCKSIZE + 1,
p_nodes_max.Z / MAP_BLOCKSIZE + 1);
}
void ClientMap::updateDrawList()
{
ScopeProfiler sp(g_profiler, "CM::updateDrawList()", SPT_AVG);
for (auto &i : m_drawlist) {
MapBlock *block = i.second;
block->refDrop();
}
m_drawlist.clear();
const v3f camera_position = m_camera_position;
const v3f camera_direction = m_camera_direction;
// Use a higher fov to accomodate faster camera movements.
// Blocks are cropped better when they are drawn.
const f32 camera_fov = m_camera_fov * 1.1f;
v3s16 cam_pos_nodes = floatToInt(camera_position, BS);
v3s16 p_blocks_min;
v3s16 p_blocks_max;
getBlocksInViewRange(cam_pos_nodes, &p_blocks_min, &p_blocks_max);
// Read the vision range, unless unlimited range is enabled.
float range = m_control.range_all ? 1e7 : m_control.wanted_range;
// Number of blocks currently loaded by the client
u32 blocks_loaded = 0;
// Number of blocks with mesh in rendering range
u32 blocks_in_range_with_mesh = 0;
// Number of blocks occlusion culled
u32 blocks_occlusion_culled = 0;
// No occlusion culling when free_move is on and camera is
// inside ground
bool occlusion_culling_enabled = true;
if (g_settings->getBool("free_move") && g_settings->getBool("noclip")) {
MapNode n = getNode(cam_pos_nodes);
if (n.getContent() == CONTENT_IGNORE ||
m_nodedef->get(n).solidness == 2)
occlusion_culling_enabled = false;
}
// Uncomment to debug occluded blocks in the wireframe mode
// TODO: Include this as a flag for an extended debugging setting
//if (occlusion_culling_enabled && m_control.show_wireframe)
// occlusion_culling_enabled = porting::getTimeS() & 1;
for (const auto &sector_it : m_sectors) {
MapSector *sector = sector_it.second;
v2s16 sp = sector->getPos();
blocks_loaded += sector->size();
if (!m_control.range_all) {
if (sp.X < p_blocks_min.X || sp.X > p_blocks_max.X ||
sp.Y < p_blocks_min.Z || sp.Y > p_blocks_max.Z)
continue;
}
MapBlockVect sectorblocks;
sector->getBlocks(sectorblocks);
/*
Loop through blocks in sector
*/
u32 sector_blocks_drawn = 0;
for (MapBlock *block : sectorblocks) {
/*
Compare block position to camera position, skip
if not seen on display
*/
if (!block->mesh) {
// Ignore if mesh doesn't exist
continue;
}
v3s16 block_coord = block->getPos();
v3s16 block_position = block->getPosRelative() + MAP_BLOCKSIZE / 2;
// First, perform a simple distance check, with a padding of one extra block.
if (!m_control.range_all &&
block_position.getDistanceFrom(cam_pos_nodes) > range + MAP_BLOCKSIZE)
continue; // Out of range, skip.
// Keep the block alive as long as it is in range.
block->resetUsageTimer();
blocks_in_range_with_mesh++;
// Frustum culling
float d = 0.0;
if (!isBlockInSight(block_coord, camera_position,
camera_direction, camera_fov, range * BS, &d))
continue;
// Occlusion culling
if ((!m_control.range_all && d > m_control.wanted_range * BS) ||
(occlusion_culling_enabled && isBlockOccluded(block, cam_pos_nodes))) {
blocks_occlusion_culled++;
continue;
}
// Add to set
block->refGrab();
m_drawlist[block_coord] = block;
sector_blocks_drawn++;
} // foreach sectorblocks
if (sector_blocks_drawn != 0)
m_last_drawn_sectors.insert(sp);
}
g_profiler->avg("MapBlock meshes in range [#]", blocks_in_range_with_mesh);
g_profiler->avg("MapBlocks occlusion culled [#]", blocks_occlusion_culled);
g_profiler->avg("MapBlocks drawn [#]", m_drawlist.size());
g_profiler->avg("MapBlocks loaded [#]", blocks_loaded);
}
void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
{
bool is_transparent_pass = pass == scene::ESNRP_TRANSPARENT;
std::string prefix;
if (pass == scene::ESNRP_SOLID)
prefix = "renderMap(SOLID): ";
else
prefix = "renderMap(TRANSPARENT): ";
/*
This is called two times per frame, reset on the non-transparent one
*/
if (pass == scene::ESNRP_SOLID)
m_last_drawn_sectors.clear();
/*
Get animation parameters
*/
const float animation_time = m_client->getAnimationTime();
const int crack = m_client->getCrackLevel();
const u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
const v3f camera_position = m_camera_position;
/*
Get all blocks and draw all visible ones
*/
u32 vertex_count = 0;
u32 drawcall_count = 0;
// For limiting number of mesh animations per frame
u32 mesh_animate_count = 0;
//u32 mesh_animate_count_far = 0;
/*
Draw the selected MapBlocks
*/
MeshBufListList drawbufs;
for (auto &i : m_drawlist) {
v3s16 block_pos = i.first;
MapBlock *block = i.second;
// If the mesh of the block happened to get deleted, ignore it
if (!block->mesh)
continue;
v3f block_pos_r = intToFloat(block->getPosRelative() + MAP_BLOCKSIZE / 2, BS);
float d = camera_position.getDistanceFrom(block_pos_r);
d = MYMAX(0,d - BLOCK_MAX_RADIUS);
// Mesh animation
if (pass == scene::ESNRP_SOLID) {
MapBlockMesh *mapBlockMesh = block->mesh;
assert(mapBlockMesh);
// Pretty random but this should work somewhat nicely
bool faraway = d >= BS * 50;
if (mapBlockMesh->isAnimationForced() || !faraway ||
mesh_animate_count < (m_control.range_all ? 200 : 50)) {
bool animated = mapBlockMesh->animate(faraway, animation_time,
crack, daynight_ratio);
if (animated)
mesh_animate_count++;
} else {
mapBlockMesh->decreaseAnimationForceTimer();
}
}
/*
Get the meshbuffers of the block
*/
{
MapBlockMesh *mapBlockMesh = block->mesh;
assert(mapBlockMesh);
for (int layer = 0; layer < MAX_TILE_LAYERS; layer++) {
scene::IMesh *mesh = mapBlockMesh->getMesh(layer);
assert(mesh);
u32 c = mesh->getMeshBufferCount();
for (u32 i = 0; i < c; i++) {
scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
video::SMaterial& material = buf->getMaterial();
video::IMaterialRenderer* rnd =
driver->getMaterialRenderer(material.MaterialType);
bool transparent = (rnd && rnd->isTransparent());
if (transparent == is_transparent_pass) {
if (buf->getVertexCount() == 0)
errorstream << "Block [" << analyze_block(block)
<< "] contains an empty meshbuf" << std::endl;
material.setFlag(video::EMF_TRILINEAR_FILTER,
m_cache_trilinear_filter);
material.setFlag(video::EMF_BILINEAR_FILTER,
m_cache_bilinear_filter);
material.setFlag(video::EMF_ANISOTROPIC_FILTER,
m_cache_anistropic_filter);
material.setFlag(video::EMF_WIREFRAME,
m_control.show_wireframe);
drawbufs.add(buf, block_pos, layer);
}
}
}
}
}
TimeTaker draw("Drawing mesh buffers");
core::matrix4 m; // Model matrix
v3f offset = intToFloat(m_camera_offset, BS);
// Render all layers in order
for (auto &lists : drawbufs.lists) {
for (MeshBufList &list : lists) {
// Check and abort if the machine is swapping a lot
if (draw.getTimerTime() > 2000) {
infostream << "ClientMap::renderMap(): Rendering took >2s, " <<
"returning." << std::endl;
return;
}
// pass the shadow map texture to the buffer texture
ShadowRenderer *shadow = m_rendering_engine->get_shadow_renderer();
if (shadow && shadow->is_active()) {
auto &layer = list.m.TextureLayer[3];
layer.Texture = shadow->get_texture();
layer.TextureWrapU = video::E_TEXTURE_CLAMP::ETC_CLAMP_TO_EDGE;
layer.TextureWrapV = video::E_TEXTURE_CLAMP::ETC_CLAMP_TO_EDGE;
layer.TrilinearFilter = true;
}
driver->setMaterial(list.m);
drawcall_count += list.bufs.size();
for (auto &pair : list.bufs) {
scene::IMeshBuffer *buf = pair.second;
v3f block_wpos = intToFloat(pair.first * MAP_BLOCKSIZE, BS);
m.setTranslation(block_wpos - offset);
driver->setTransform(video::ETS_WORLD, m);
driver->drawMeshBuffer(buf);
vertex_count += buf->getVertexCount();
}
}
}
g_profiler->avg(prefix + "draw meshes [ms]", draw.stop(true));
// Log only on solid pass because values are the same
if (pass == scene::ESNRP_SOLID) {
g_profiler->avg("renderMap(): animated meshes [#]", mesh_animate_count);
}
g_profiler->avg(prefix + "vertices drawn [#]", vertex_count);
g_profiler->avg(prefix + "drawcalls [#]", drawcall_count);
}
static bool getVisibleBrightness(Map *map, const v3f &p0, v3f dir, float step,
float step_multiplier, float start_distance, float end_distance,
const NodeDefManager *ndef, u32 daylight_factor, float sunlight_min_d,
int *result, bool *sunlight_seen)
{
int brightness_sum = 0;
int brightness_count = 0;
float distance = start_distance;
dir.normalize();
v3f pf = p0;
pf += dir * distance;
int noncount = 0;
bool nonlight_seen = false;
bool allow_allowing_non_sunlight_propagates = false;
bool allow_non_sunlight_propagates = false;
// Check content nearly at camera position
{
v3s16 p = floatToInt(p0 /*+ dir * 3*BS*/, BS);
MapNode n = map->getNode(p);
if(ndef->get(n).param_type == CPT_LIGHT &&
!ndef->get(n).sunlight_propagates)
allow_allowing_non_sunlight_propagates = true;
}
// If would start at CONTENT_IGNORE, start closer
{
v3s16 p = floatToInt(pf, BS);
MapNode n = map->getNode(p);
if(n.getContent() == CONTENT_IGNORE){
float newd = 2*BS;
pf = p0 + dir * 2*newd;
distance = newd;
sunlight_min_d = 0;
}
}
for (int i=0; distance < end_distance; i++) {
pf += dir * step;
distance += step;
step *= step_multiplier;
v3s16 p = floatToInt(pf, BS);
MapNode n = map->getNode(p);
if (allow_allowing_non_sunlight_propagates && i == 0 &&
ndef->get(n).param_type == CPT_LIGHT &&
!ndef->get(n).sunlight_propagates) {
allow_non_sunlight_propagates = true;
}
if (ndef->get(n).param_type != CPT_LIGHT ||
(!ndef->get(n).sunlight_propagates &&
!allow_non_sunlight_propagates)){
nonlight_seen = true;
noncount++;
if(noncount >= 4)
break;
continue;
}
if (distance >= sunlight_min_d && !*sunlight_seen && !nonlight_seen)
if (n.getLight(LIGHTBANK_DAY, ndef) == LIGHT_SUN)
*sunlight_seen = true;
noncount = 0;
brightness_sum += decode_light(n.getLightBlend(daylight_factor, ndef));
brightness_count++;
}
*result = 0;
if(brightness_count == 0)
return false;
*result = brightness_sum / brightness_count;
/*std::cerr<<"Sampled "<<brightness_count<<" points; result="
<<(*result)<<std::endl;*/
return true;
}
int ClientMap::getBackgroundBrightness(float max_d, u32 daylight_factor,
int oldvalue, bool *sunlight_seen_result)
{
ScopeProfiler sp(g_profiler, "CM::getBackgroundBrightness", SPT_AVG);
static v3f z_directions[50] = {
v3f(-100, 0, 0)
};
static f32 z_offsets[50] = {
-1000,
};
if (z_directions[0].X < -99) {
for (u32 i = 0; i < ARRLEN(z_directions); i++) {
// Assumes FOV of 72 and 16/9 aspect ratio
z_directions[i] = v3f(
0.02 * myrand_range(-100, 100),
1.0,
0.01 * myrand_range(-100, 100)
).normalize();
z_offsets[i] = 0.01 * myrand_range(0,100);
}
}
int sunlight_seen_count = 0;
float sunlight_min_d = max_d*0.8;
if(sunlight_min_d > 35*BS)
sunlight_min_d = 35*BS;
std::vector<int> values;
values.reserve(ARRLEN(z_directions));
for (u32 i = 0; i < ARRLEN(z_directions); i++) {
v3f z_dir = z_directions[i];
core::CMatrix4<f32> a;
a.buildRotateFromTo(v3f(0,1,0), z_dir);
v3f dir = m_camera_direction;
a.rotateVect(dir);
int br = 0;
float step = BS*1.5;
if(max_d > 35*BS)
step = max_d / 35 * 1.5;
float off = step * z_offsets[i];
bool sunlight_seen_now = false;
bool ok = getVisibleBrightness(this, m_camera_position, dir,
step, 1.0, max_d*0.6+off, max_d, m_nodedef, daylight_factor,
sunlight_min_d,
&br, &sunlight_seen_now);
if(sunlight_seen_now)
sunlight_seen_count++;
if(!ok)
continue;
values.push_back(br);
// Don't try too much if being in the sun is clear
if(sunlight_seen_count >= 20)
break;
}
int brightness_sum = 0;
int brightness_count = 0;
std::sort(values.begin(), values.end());
u32 num_values_to_use = values.size();
if(num_values_to_use >= 10)
num_values_to_use -= num_values_to_use/2;
else if(num_values_to_use >= 7)
num_values_to_use -= num_values_to_use/3;
u32 first_value_i = (values.size() - num_values_to_use) / 2;
for (u32 i=first_value_i; i < first_value_i + num_values_to_use; i++) {
brightness_sum += values[i];
brightness_count++;
}
int ret = 0;
if(brightness_count == 0){
MapNode n = getNode(floatToInt(m_camera_position, BS));
if(m_nodedef->get(n).param_type == CPT_LIGHT){
ret = decode_light(n.getLightBlend(daylight_factor, m_nodedef));
} else {
ret = oldvalue;
}
} else {
ret = brightness_sum / brightness_count;
}
*sunlight_seen_result = (sunlight_seen_count > 0);
return ret;
}
void ClientMap::renderPostFx(CameraMode cam_mode)
{
// Sadly ISceneManager has no "post effects" render pass, in that case we
// could just register for that and handle it in renderMap().
MapNode n = getNode(floatToInt(m_camera_position, BS));
// - If the player is in a solid node, make everything black.
// - If the player is in liquid, draw a semi-transparent overlay.
// - Do not if player is in third person mode
const ContentFeatures& features = m_nodedef->get(n);
video::SColor post_effect_color = features.post_effect_color;
if(features.solidness == 2 && !(g_settings->getBool("noclip") &&
m_client->checkLocalPrivilege("noclip")) &&
cam_mode == CAMERA_MODE_FIRST)
{
post_effect_color = video::SColor(255, 0, 0, 0);
}
if (post_effect_color.getAlpha() != 0)
{
// Draw a full-screen rectangle
video::IVideoDriver* driver = SceneManager->getVideoDriver();
v2u32 ss = driver->getScreenSize();
core::rect<s32> rect(0,0, ss.X, ss.Y);
driver->draw2DRectangle(post_effect_color, rect);
}
}
void ClientMap::PrintInfo(std::ostream &out)
{
out<<"ClientMap: ";
}
void ClientMap::renderMapShadows(video::IVideoDriver *driver,
const video::SMaterial &material, s32 pass, int frame, int total_frames)
{
bool is_transparent_pass = pass != scene::ESNRP_SOLID;
std::string prefix;
if (is_transparent_pass)
prefix = "renderMap(SHADOW TRANS): ";
else
prefix = "renderMap(SHADOW SOLID): ";
u32 drawcall_count = 0;
u32 vertex_count = 0;
MeshBufListList drawbufs;
int count = 0;
int low_bound = is_transparent_pass ? 0 : m_drawlist_shadow.size() / total_frames * frame;
int high_bound = is_transparent_pass ? m_drawlist_shadow.size() : m_drawlist_shadow.size() / total_frames * (frame + 1);
// transparent pass should be rendered in one go
if (is_transparent_pass && frame != total_frames - 1) {
return;
}
for (auto &i : m_drawlist_shadow) {
// only process specific part of the list & break early
++count;
if (count <= low_bound)
continue;
if (count > high_bound)
break;
v3s16 block_pos = i.first;
MapBlock *block = i.second;
// If the mesh of the block happened to get deleted, ignore it
if (!block->mesh)
continue;
/*
Get the meshbuffers of the block
*/
{
MapBlockMesh *mapBlockMesh = block->mesh;
assert(mapBlockMesh);
for (int layer = 0; layer < MAX_TILE_LAYERS; layer++) {
scene::IMesh *mesh = mapBlockMesh->getMesh(layer);
assert(mesh);
u32 c = mesh->getMeshBufferCount();
for (u32 i = 0; i < c; i++) {
scene::IMeshBuffer *buf = mesh->getMeshBuffer(i);
video::SMaterial &mat = buf->getMaterial();
auto rnd = driver->getMaterialRenderer(mat.MaterialType);
bool transparent = rnd && rnd->isTransparent();
if (transparent == is_transparent_pass)
drawbufs.add(buf, block_pos, layer);
}
}
}
}
TimeTaker draw("Drawing shadow mesh buffers");
core::matrix4 m; // Model matrix
v3f offset = intToFloat(m_camera_offset, BS);
// Render all layers in order
for (auto &lists : drawbufs.lists) {
for (MeshBufList &list : lists) {
// Check and abort if the machine is swapping a lot
if (draw.getTimerTime() > 1000) {
infostream << "ClientMap::renderMapShadows(): Rendering "
"took >1s, returning." << std::endl;
break;
}
for (auto &pair : list.bufs) {
scene::IMeshBuffer *buf = pair.second;
// override some material properties
video::SMaterial local_material = buf->getMaterial();
local_material.MaterialType = material.MaterialType;
local_material.BackfaceCulling = material.BackfaceCulling;
local_material.FrontfaceCulling = material.FrontfaceCulling;
local_material.BlendOperation = material.BlendOperation;
local_material.Lighting = false;
driver->setMaterial(local_material);
v3f block_wpos = intToFloat(pair.first * MAP_BLOCKSIZE, BS);
m.setTranslation(block_wpos - offset);
driver->setTransform(video::ETS_WORLD, m);
driver->drawMeshBuffer(buf);
vertex_count += buf->getVertexCount();
}
drawcall_count += list.bufs.size();
}
}
// restore the driver material state
video::SMaterial clean;
clean.BlendOperation = video::EBO_ADD;
driver->setMaterial(clean); // reset material to defaults
driver->draw3DLine(v3f(), v3f(), video::SColor(0));
g_profiler->avg(prefix + "draw meshes [ms]", draw.stop(true));
g_profiler->avg(prefix + "vertices drawn [#]", vertex_count);
g_profiler->avg(prefix + "drawcalls [#]", drawcall_count);
}
/*
Custom update draw list for the pov of shadow light.
*/
void ClientMap::updateDrawListShadow(const v3f &shadow_light_pos, const v3f &shadow_light_dir, float shadow_range)
{
ScopeProfiler sp(g_profiler, "CM::updateDrawListShadow()", SPT_AVG);
const v3f camera_position = shadow_light_pos;
const v3f camera_direction = shadow_light_dir;
// I "fake" fov just to avoid creating a new function to handle orthographic
// projection.
const f32 camera_fov = m_camera_fov * 1.9f;
v3s16 cam_pos_nodes = floatToInt(camera_position, BS);
v3s16 p_blocks_min;
v3s16 p_blocks_max;
getBlocksInViewRange(cam_pos_nodes, &p_blocks_min, &p_blocks_max, shadow_range);
std::vector<v2s16> blocks_in_range;
for (auto &i : m_drawlist_shadow) {
MapBlock *block = i.second;
block->refDrop();
}
m_drawlist_shadow.clear();
// We need to append the blocks from the camera POV because sometimes
// they are not inside the light frustum and it creates glitches.
// FIXME: This could be removed if we figure out why they are missing
// from the light frustum.
for (auto &i : m_drawlist) {
i.second->refGrab();
m_drawlist_shadow[i.first] = i.second;
}
// Number of blocks currently loaded by the client
u32 blocks_loaded = 0;
// Number of blocks with mesh in rendering range
u32 blocks_in_range_with_mesh = 0;
// Number of blocks occlusion culled
u32 blocks_occlusion_culled = 0;
for (auto &sector_it : m_sectors) {
MapSector *sector = sector_it.second;
if (!sector)
continue;
blocks_loaded += sector->size();
MapBlockVect sectorblocks;
sector->getBlocks(sectorblocks);
/*
Loop through blocks in sector
*/
for (MapBlock *block : sectorblocks) {
if (!block->mesh) {
// Ignore if mesh doesn't exist
continue;
}
float range = shadow_range;
float d = 0.0;
if (!isBlockInSight(block->getPos(), camera_position,
camera_direction, camera_fov, range, &d))
continue;
blocks_in_range_with_mesh++;
/*
Occlusion culling
*/
if (isBlockOccluded(block, cam_pos_nodes)) {
blocks_occlusion_culled++;
continue;
}
// This block is in range. Reset usage timer.
block->resetUsageTimer();
// Add to set
if (m_drawlist_shadow.find(block->getPos()) == m_drawlist_shadow.end()) {
block->refGrab();
m_drawlist_shadow[block->getPos()] = block;
}
}
}
g_profiler->avg("SHADOW MapBlock meshes in range [#]", blocks_in_range_with_mesh);
g_profiler->avg("SHADOW MapBlocks occlusion culled [#]", blocks_occlusion_culled);
g_profiler->avg("SHADOW MapBlocks drawn [#]", m_drawlist_shadow.size());
g_profiler->avg("SHADOW MapBlocks loaded [#]", blocks_loaded);
}
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