minetest/src/client/clientmap.cpp
Quentin Bazin 5f1cd555cd Move client-specific files to 'src/client' (#7902)
Update Android.mk
Remove 'src/client' from include_directories
2018-11-28 20:01:49 +01:00

672 lines
19 KiB
C++

/*
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"
ClientMap::ClientMap(
Client *client,
MapDrawControl &control,
s32 id
):
Map(dout_client, client),
scene::ISceneNode(RenderingEngine::get_scene_manager()->getRootSceneNode(),
RenderingEngine::get_scene_manager(), id),
m_client(client),
m_control(control)
{
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
try {
return getSectorNoGenerate(p2d);
} catch(InvalidPositionException &e) {
}
// Create a sector
MapSector *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();
}
void ClientMap::getBlocksInViewRange(v3s16 cam_pos_nodes,
v3s16 *p_blocks_min, v3s16 *p_blocks_max)
{
v3s16 box_nodes_d = m_control.wanted_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);
g_profiler->add("CM::updateDrawList() count", 1);
for (auto &i : m_drawlist) {
MapBlock *block = i.second;
block->refDrop();
}
m_drawlist.clear();
v3f camera_position = m_camera_position;
v3f camera_direction = m_camera_direction;
f32 camera_fov = m_camera_fov;
// 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 p_blocks_min;
v3s16 p_blocks_max;
getBlocksInViewRange(cam_pos_nodes, &p_blocks_min, &p_blocks_max);
// 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;
// No occlusion culling when free_move is on and camera is
// inside ground
bool occlusion_culling_enabled = true;
if (g_settings->getBool("free_move")) {
MapNode n = getNodeNoEx(cam_pos_nodes);
if (n.getContent() == CONTENT_IGNORE ||
m_nodedef->get(n).solidness == 2)
occlusion_culling_enabled = false;
}
for (const auto &sector_it : m_sectors) {
MapSector *sector = sector_it.second;
v2s16 sp = sector->getPos();
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 (auto block : sectorblocks) {
/*
Compare block position to camera position, skip
if not seen on display
*/
if (block->mesh)
block->mesh->updateCameraOffset(m_camera_offset);
float range = 100000 * BS;
if (!m_control.range_all)
range = m_control.wanted_range * BS;
float d = 0.0;
if (!isBlockInSight(block->getPos(), camera_position,
camera_direction, camera_fov, range, &d))
continue;
blocks_in_range++;
/*
Ignore if mesh doesn't exist
*/
if (!block->mesh) {
blocks_in_range_without_mesh++;
continue;
}
/*
Occlusion culling
*/
if (occlusion_culling_enabled && isBlockOccluded(block, cam_pos_nodes)) {
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 &&
d > m_control.wanted_range * BS)
continue;
// Add to set
block->refGrab();
m_drawlist[block->getPos()] = block;
sector_blocks_drawn++;
blocks_drawn++;
if (d / BS > farthest_drawn)
farthest_drawn = d / BS;
} // foreach sectorblocks
if (sector_blocks_drawn != 0)
m_last_drawn_sectors.insert(sp);
}
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);
}
struct MeshBufList
{
video::SMaterial m;
std::vector<scene::IMeshBuffer*> bufs;
};
struct MeshBufListList
{
/*!
* Stores the mesh buffers of the world.
* The array index is the material's layer.
* The vector part groups vertices by material.
*/
std::vector<MeshBufList> lists[MAX_TILE_LAYERS];
void clear()
{
for (auto &list : lists)
list.clear();
}
void add(scene::IMeshBuffer *buf, 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.push_back(buf);
return;
}
}
MeshBufList l;
l.m = m;
l.bufs.push_back(buf);
list.push_back(l);
}
};
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 = "CM: solid: ";
else
prefix = "CM: 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 time for measuring timeout.
Measuring time is very useful for long delays when the
machine is swapping a lot.
*/
std::time_t time1 = time(0);
/*
Get animation parameters
*/
float animation_time = m_client->getAnimationTime();
int crack = m_client->getCrackLevel();
u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
v3f camera_position = m_camera_position;
v3f camera_direction = m_camera_direction;
f32 camera_fov = m_camera_fov;
/*
Get all blocks and draw all visible ones
*/
u32 vertex_count = 0;
u32 meshbuffer_count = 0;
// For limiting number of mesh animations per frame
u32 mesh_animate_count = 0;
u32 mesh_animate_count_far = 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;
/*
Draw the selected MapBlocks
*/
{
ScopeProfiler sp(g_profiler, prefix + "drawing blocks", SPT_AVG);
MeshBufListList drawbufs;
for (auto &i : m_drawlist) {
MapBlock *block = i.second;
// If the mesh of the block happened to get deleted, ignore it
if (!block->mesh)
continue;
float d = 0.0;
if (!isBlockInSight(block->getPos(), camera_position,
camera_direction, camera_fov, 100000 * BS, &d))
continue;
// Mesh animation
if (pass == scene::ESNRP_SOLID) {
//MutexAutoLock lock(block->mesh_mutex);
MapBlockMesh *mapBlockMesh = block->mesh;
assert(mapBlockMesh);
// Pretty random but this should work somewhat nicely
bool faraway = d >= BS * 50;
//bool faraway = d >= m_control.wanted_range * BS;
if (mapBlockMesh->isAnimationForced() || !faraway ||
mesh_animate_count_far < (m_control.range_all ? 200 : 50)) {
bool animated = mapBlockMesh->animate(faraway, animation_time,
crack, daynight_ratio);
if (animated)
mesh_animate_count++;
if (animated && faraway)
mesh_animate_count_far++;
} else {
mapBlockMesh->decreaseAnimationForceTimer();
}
}
/*
Get the meshbuffers of the block
*/
{
//MutexAutoLock lock(block->mesh_mutex);
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, layer);
}
}
}
}
}
// Render all layers in order
for (auto &lists : drawbufs.lists) {
int timecheck_counter = 0;
for (MeshBufList &list : lists) {
timecheck_counter++;
if (timecheck_counter > 50) {
timecheck_counter = 0;
std::time_t time2 = time(0);
if (time2 > time1 + 4) {
infostream << "ClientMap::renderMap(): "
"Rendering takes ages, returning."
<< std::endl;
return;
}
}
driver->setMaterial(list.m);
for (scene::IMeshBuffer *buf : list.bufs) {
driver->drawMeshBuffer(buf);
vertex_count += buf->getVertexCount();
meshbuffer_count++;
}
}
}
} // ScopeProfiler
// Log only on solid pass because values are the same
if (pass == scene::ESNRP_SOLID) {
g_profiler->avg("CM: animated meshes", mesh_animate_count);
g_profiler->avg("CM: animated meshes (far)", mesh_animate_count_far);
}
g_profiler->avg(prefix + "vertices drawn", vertex_count);
if (blocks_had_pass_meshbuf != 0)
g_profiler->avg(prefix + "meshbuffers per block",
(float)meshbuffer_count / (float)blocks_had_pass_meshbuf);
if (blocks_drawn != 0)
g_profiler->avg(prefix + "empty blocks (frac)",
(float)blocks_without_stuff / blocks_drawn);
}
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->getNodeNoEx(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->getNodeNoEx(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->getNodeNoEx(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)
{
static v3f z_directions[50] = {
v3f(-100, 0, 0)
};
static f32 z_offsets[sizeof(z_directions)/sizeof(*z_directions)] = {
-1000,
};
if(z_directions[0].X < -99){
for(u32 i=0; i<sizeof(z_directions)/sizeof(*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;
for(u32 i=0; i<sizeof(z_directions)/sizeof(*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 = getNodeNoEx(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 = getNodeNoEx(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: ";
}