PulseStudio/VoxelEngine
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make chunk lightmap optional

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This commit is contained in:
MihailRis 2025-11-23 15:22:18 +03:00
parent 64f7c19766
commit 5250c748be
12 changed files with 103 additions and 73 deletions
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66
src/lighting/LightSolver.cpp
View File

@ -16,18 +16,23 @@ LightSolver::LightSolver(const ContentIndices& contentIds, Chunks& chunks, int c
}
void LightSolver::add(int x, int y, int z, int emission) {
if (emission <= 1)
if (emission <= 1) {
return;
}
Chunk* chunk = chunks.getChunkByVoxel(x, y, z);
if (chunk == nullptr)
if (chunk == nullptr) {
return;
ubyte light = chunk->lightmap.get(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel);
}
assert(chunk->lightmap != nullptr);
auto& lightmap = *chunk->lightmap;
ubyte light = lightmap.get(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel);
if (emission < light) return;
addqueue.push(lightentry {x, y, z, ubyte(emission)});
chunk->flags.modified = true;
chunk->lightmap.set(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel, emission);
lightmap.set(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel, emission);
}
void LightSolver::add(int x, int y, int z) {
@ -36,15 +41,18 @@ void LightSolver::add(int x, int y, int z) {
void LightSolver::remove(int x, int y, int z) {
Chunk* chunk = chunks.getChunkByVoxel(x, y, z);
if (chunk == nullptr)
if (chunk == nullptr) {
return;
}
assert(chunk->lightmap != nullptr);
auto& lightmap = *chunk->lightmap;
ubyte light = chunk->lightmap.get(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel);
if (light == 0){
ubyte light = lightmap.get(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel);
if (light == 0) {
return;
}
remqueue.push(lightentry {x, y, z, light});
chunk->lightmap.set(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel, 0);
lightmap.set(x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D, channel, 0);
}
void LightSolver::solve(){
@ -73,18 +81,21 @@ void LightSolver::solve(){
int lz = z - chunk->z * CHUNK_D;
chunk->flags.modified = true;
ubyte light = chunk->lightmap.get(lx,y,lz, channel);
assert(chunk->lightmap != nullptr);
auto& lightmap = *chunk->lightmap;
ubyte light = lightmap.get(lx,y,lz, channel);
if (light != 0 && light == entry.light-1){
voxel* vox = chunks.get(x, y, z);
if (vox && vox->id != 0) {
const Block* block = blockDefs[vox->id];
if (uint8_t emission = block->emission[channel]) {
addqueue.push(lightentry {x, y, z, emission});
chunk->lightmap.set(lx, y, lz, channel, emission);
lightmap.set(lx, y, lz, channel, emission);
}
else chunk->lightmap.set(lx, y, lz, channel, 0);
else lightmap.set(lx, y, lz, channel, 0);
}
else chunk->lightmap.set(lx, y, lz, channel, 0);
else lightmap.set(lx, y, lz, channel, 0);
remqueue.push(lightentry {x, y, z, light});
}
else if (light >= entry.light){
@ -105,21 +116,24 @@ void LightSolver::solve(){
int z = entry.z+coords[imul3+2];
Chunk* chunk = chunks.getChunkByVoxel(x,y,z);
if (chunk) {
int lx = x - chunk->x * CHUNK_W;
int lz = z - chunk->z * CHUNK_D;
chunk->flags.modified = true;
if (chunk == nullptr) {
continue;
}
assert(chunk->lightmap != nullptr);
auto& lightmap = *chunk->lightmap;
int lx = x - chunk->x * CHUNK_W;
int lz = z - chunk->z * CHUNK_D;
chunk->flags.modified = true;
ubyte light = chunk->lightmap.get(lx, y, lz, channel);
voxel& v = chunk->voxels[vox_index(lx, y, lz)];
const Block* block = blockDefs[v.id];
if (block->lightPassing && light+2 <= entry.light){
chunk->lightmap.set(
x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D,
channel,
entry.light-1);
addqueue.push(lightentry {x, y, z, ubyte(entry.light-1)});
}
ubyte light = lightmap.get(lx, y, lz, channel);
voxel& v = chunk->voxels[vox_index(lx, y, lz)];
const Block* block = blockDefs[v.id];
if (block->lightPassing && light+2 <= entry.light){
lightmap.set(
x-chunk->x*CHUNK_W, y, z-chunk->z*CHUNK_D,
channel,
entry.light-1);
addqueue.push(lightentry {x, y, z, ubyte(entry.light-1)});
}
}
}

39
src/lighting/Lighting.cpp
View File

@ -29,16 +29,21 @@ void Lighting::clear(){
const auto& chunks = this->chunks.getChunks();
for (size_t index = 0; index < chunks.size(); index++){
auto chunk = chunks[index];
if (chunk == nullptr)
if (chunk == nullptr) {
continue;
Lightmap& lightmap = chunk->lightmap;
for (int i = 0; i < CHUNK_VOL; i++){
lightmap.map[i] = 0;
}
auto& lightmap = chunk->lightmap;
if (lightmap == nullptr) {
continue;
}
std::memset(lightmap->map, 0, sizeof(Lightmap::map));
}
}
void Lighting::prebuildSkyLight(Chunk& chunk, const ContentIndices& indices){
void Lighting::prebuildSkyLight(Chunk& chunk, const ContentIndices& indices) {
assert(chunk.lightmap != nullptr);
auto& lightmap = *chunk.lightmap;
const auto* blockDefs = indices.blocks.getDefs();
int highestPoint = 0;
@ -49,17 +54,19 @@ void Lighting::prebuildSkyLight(Chunk& chunk, const ContentIndices& indices){
voxel& vox = chunk.voxels[index];
const Block* block = blockDefs[vox.id];
if (!block->skyLightPassing) {
if (highestPoint < y)
if (highestPoint < y) {
highestPoint = y;
}
break;
}
chunk.lightmap.setS(x,y,z, 15);
lightmap.setS(x, y, z, 15);
}
}
}
if (highestPoint < CHUNK_H-1)
if (highestPoint < CHUNK_H-1) {
highestPoint++;
chunk.lightmap.highestPoint = highestPoint;
}
lightmap.highestPoint = highestPoint;
}
void Lighting::buildSkyLight(int cx, int cz){
@ -70,15 +77,18 @@ void Lighting::buildSkyLight(int cx, int cz){
logger.error() << "attempted to build sky lights to chunk missing in local matrix";
return;
}
assert(chunk->lightmap != nullptr);
auto& lightmap = *chunk->lightmap;
for (int z = 0; z < CHUNK_D; z++){
for (int x = 0; x < CHUNK_W; x++){
int gx = x + cx * CHUNK_W;
int gz = z + cz * CHUNK_D;
for (int y = chunk->lightmap.highestPoint; y >= 0; y--){
for (int y = lightmap.highestPoint; y >= 0; y--){
while (y > 0 && !blockDefs[chunk->voxels[vox_index(x, y, z)].id]->lightPassing) {
y--;
}
if (chunk->lightmap.getS(x, y, z) != 15) {
if (lightmap.getS(x, y, z) != 15) {
solverS->add(gx,y+1,gz);
for (; y >= 0; y--){
solverS->add(gx+1,y,gz);
@ -106,6 +116,9 @@ void Lighting::onChunkLoaded(int cx, int cz, bool expand) {
logger.error() << "attempted to build lights to chunk missing in local matrix";
return;
}
assert(chunk->lightmap != nullptr);
auto& lightmap = *chunk->lightmap;
for (uint y = 0; y < CHUNK_H; y++){
for (uint z = 0; z < CHUNK_D; z++){
for (uint x = 0; x < CHUNK_W; x++){
@ -128,7 +141,7 @@ void Lighting::onChunkLoaded(int cx, int cz, bool expand) {
for (int z = 0; z < CHUNK_D; z++) {
int gx = x + cx * CHUNK_W;
int gz = z + cz * CHUNK_D;
int rgbs = chunk->lightmap.get(x, y, z);
int rgbs = lightmap.get(x, y, z);
if (rgbs){
solverR.add(gx,y,gz, Lightmap::extract(rgbs, 0));
solverG.add(gx,y,gz, Lightmap::extract(rgbs, 1));
@ -143,7 +156,7 @@ void Lighting::onChunkLoaded(int cx, int cz, bool expand) {
for (int x = 0; x < CHUNK_W; x++) {
int gx = x + cx * CHUNK_W;
int gz = z + cz * CHUNK_D;
int rgbs = chunk->lightmap.get(x, y, z);
int rgbs = lightmap.get(x, y, z);
if (rgbs){
solverR.add(gx,y,gz, Lightmap::extract(rgbs, 0));
solverG.add(gx,y,gz, Lightmap::extract(rgbs, 1));

2
src/lighting/Lightmap.hpp
View File

@ -89,4 +89,6 @@ public:
std::unique_ptr<ubyte[]> encode() const;
static std::unique_ptr<light_t[]> decode(const ubyte* buffer);
static inline light_t SUN_LIGHT_ONLY = combine(0U, 0U, 0U, 15U);
};

6
src/logic/ChunksController.cpp
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@ -150,7 +150,7 @@ bool ChunksController::buildLights(
}
}
if (surrounding == MIN_SURROUNDING) {
if (lighting) {
if (lighting && chunk->lightmap) {
bool lightsCache = chunk->flags.loadedLights;
if (!lightsCache) {
lighting->buildSkyLight(chunk->x, chunk->z);
@ -170,7 +170,7 @@ void ChunksController::createChunk(const Player& player, int x, int z) const {
}
return;
}
auto chunk = level.chunks->create(x, z);
auto chunk = level.chunks->create(x, z, lighting != nullptr);
player.chunks->putChunk(chunk);
auto& chunkFlags = chunk->flags;
if (!chunkFlags.loaded) {
@ -179,7 +179,7 @@ void ChunksController::createChunk(const Player& player, int x, int z) const {
}
chunk->updateHeights();
level.events->trigger(LevelEventType::CHUNK_PRESENT, chunk.get());
if (!chunkFlags.loadedLights) {
if (!chunkFlags.loadedLights && chunk->lightmap) {
Lighting::prebuildSkyLight(*chunk, *level.content.getIndices());
}
chunkFlags.loaded = true;

6
src/logic/scripting/lua/libs/libworld.cpp
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@ -153,8 +153,10 @@ static void integrate_chunk_client(Chunk& chunk) {
chunk.flags.loadedLights = false;
chunk.flags.lighted = false;
chunk.lightmap.clear();
Lighting::prebuildSkyLight(chunk, *indices);
if (chunk.lightmap) {
chunk.lightmap->clear();
Lighting::prebuildSkyLight(chunk, *indices);
}
for (int lz = -1; lz <= 1; lz++) {
for (int lx = -1; lx <= 1; lx++) {

12
src/voxels/Chunk.cpp
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@ -8,7 +8,8 @@
#include "util/data_io.hpp"
#include "voxel.hpp"
Chunk::Chunk(int xpos, int zpos) : x(xpos), z(zpos) {
Chunk::Chunk(int xpos, int zpos, std::shared_ptr<Lightmap> lightmap)
: x(xpos), z(zpos), lightmap(std::move(lightmap)) {
bottom = 0;
top = CHUNK_H;
}
@ -56,15 +57,6 @@ std::shared_ptr<Inventory> Chunk::getBlockInventory(uint x, uint y, uint z)
return found->second;
}
std::unique_ptr<Chunk> Chunk::clone() const {
auto other = std::make_unique<Chunk>(x, z);
for (uint i = 0; i < CHUNK_VOL; i++) {
other->voxels[i] = voxels[i];
}
other->lightmap.set(&lightmap);
return other;
}
/**
Current chunk format:
- byte-order: little-endian

7
src/voxels/Chunk.hpp
View File

@ -27,7 +27,7 @@ public:
int x, z;
int bottom, top;
voxel voxels[CHUNK_VOL] {};
Lightmap lightmap;
std::shared_ptr<Lightmap> lightmap;
struct {
bool modified : 1;
bool ready : 1;
@ -45,14 +45,11 @@ public:
/// @brief Blocks metadata heap
BlocksMetadata blocksMetadata;
Chunk(int x, int z);
Chunk(int x, int z, std::shared_ptr<Lightmap> lightmap=nullptr);
/// @brief Refresh `bottom` and `top` values
void updateHeights();
// unused
std::unique_ptr<Chunk> clone() const;
/// @brief Creates new block inventory given size
/// @return inventory id or 0 if block does not exists
void addBlockInventory(

12
src/voxels/Chunks.cpp
View File

@ -115,9 +115,10 @@ ubyte Chunks::getLight(int32_t x, int32_t y, int32_t z, int channel) const {
if (chunk == nullptr) {
return 0;
}
assert(chunk->lightmap != nullptr);
int lx = x - cx * CHUNK_W;
int lz = z - cz * CHUNK_D;
return chunk->lightmap.get(lx, y, lz, channel);
return chunk->lightmap->get(lx, y, lz, channel);
}
light_t Chunks::getLight(int32_t x, int32_t y, int32_t z) const {
@ -135,9 +136,10 @@ light_t Chunks::getLight(int32_t x, int32_t y, int32_t z) const {
if (chunk == nullptr) {
return 0;
}
assert(chunk->lightmap != nullptr);
int lx = x - cx * CHUNK_W;
int lz = z - cz * CHUNK_D;
return chunk->lightmap.get(lx, y, lz);
return chunk->lightmap->get(lx, y, lz);
}
Chunk* Chunks::getChunkByVoxel(int32_t x, int32_t y, int32_t z) const {
@ -373,7 +375,8 @@ void Chunks::getVoxels(VoxelsVolume& volume, bool backlight) const {
}
} else {
const voxel* cvoxels = chunk->voxels;
const light_t* clights = chunk->lightmap.getLights();
const light_t* clights =
chunk->lightmap ? chunk->lightmap->getLights() : nullptr;
for (int ly = y; ly < y + h; ly++) {
for (int lz = std::max(z, cz * CHUNK_D);
lz < std::min(z + d, (cz + 1) * CHUNK_D);
@ -390,7 +393,8 @@ void Chunks::getVoxels(VoxelsVolume& volume, bool backlight) const {
CHUNK_D
);
voxels[vidx] = cvoxels[cidx];
light_t light = clights[cidx];
light_t light = clights ? clights[cidx]
: Lightmap::SUN_LIGHT_ONLY;
if (backlight) {
const auto block =
indices.blocks.get(voxels[vidx].id);

14
src/voxels/GlobalChunks.cpp
View File

@ -91,14 +91,16 @@ static inline auto load_inventories(
}
static util::ObjectsPool<Chunk> chunks_pool(1'024);
static util::ObjectsPool<Lightmap> lightmaps_pool;
std::shared_ptr<Chunk> GlobalChunks::create(int x, int z) {
std::shared_ptr<Chunk> GlobalChunks::create(int x, int z, bool lighting) {
const auto& found = chunksMap.find(keyfrom(x, z));
if (found != chunksMap.end()) {
return found->second;
}
auto chunk = chunks_pool.create(x, z);
auto chunk =
chunks_pool.create(x, z, lighting ? lightmaps_pool.create() : nullptr);
chunksMap[keyfrom(x, z)] = chunk;
World& world = *level.getWorld();
@ -125,9 +127,11 @@ std::shared_ptr<Chunk> GlobalChunks::create(int x, int z) {
level.inventories->store(entry.second);
}
}
if (auto lights = regions.getLights(chunk->x, chunk->z)) {
chunk->lightmap.set(lights.get());
chunk->flags.loadedLights = true;
if (chunk->lightmap) {
if (auto lights = regions.getLights(chunk->x, chunk->z)) {
chunk->lightmap->set(lights.get());
chunk->flags.loadedLights = true;
}
}
chunk->blocksMetadata = regions.getBlocksData(chunk->x, chunk->z);
return chunk;

2
src/voxels/GlobalChunks.hpp
View File

@ -40,7 +40,7 @@ public:
void setOnUnload(consumer<Chunk&> onUnload);
std::shared_ptr<Chunk> fetch(int x, int z);
std::shared_ptr<Chunk> create(int x, int z);
std::shared_ptr<Chunk> create(int x, int z, bool lighting);
void pinChunk(std::shared_ptr<Chunk> chunk);
void unpinChunk(int x, int z);

6
src/voxels/blocks_agent.cpp
View File

@ -434,7 +434,8 @@ inline void get_voxels_impl(
}
} else {
const voxel* cvoxels = chunk->voxels;
const light_t* clights = chunk->lightmap.getLights();
const light_t* clights =
chunk->lightmap ? chunk->lightmap->getLights() : nullptr;
for (int ly = y; ly < y + h; ly++) {
for (int lz = std::max(z, cz * CHUNK_D);
lz < std::min(z + d, (cz + 1) * CHUNK_D);
@ -451,7 +452,8 @@ inline void get_voxels_impl(
CHUNK_D
);
voxels[vidx] = cvoxels[cidx];
light_t light = clights[cidx];
light_t light = clights ? clights[cidx]
: Lightmap::SUN_LIGHT_ONLY;
if (backlight) {
const auto block = blocks.get(voxels[vidx].id);
if (block && block->lightPassing) {

4
src/world/files/WorldRegions.cpp
View File

@ -175,11 +175,11 @@ void WorldRegions::put(Chunk* chunk, std::vector<ubyte> entitiesData) {
CHUNK_DATA_LEN);
// Writing lights cache
if (doWriteLights && chunk->flags.lighted) {
if (doWriteLights && chunk->flags.lighted && chunk->lightmap) {
put(chunk->x,
chunk->z,
REGION_LAYER_LIGHTS,
chunk->lightmap.encode(),
chunk->lightmap->encode(),
LIGHTMAP_DATA_LEN);
}
// Writing block inventories