PulseStudio/VoxelEngine
PulseStudio/VoxelEngine
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chunks sorting speed increased 4x times

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This commit is contained in:
MihailRis 2024-05-17 19:37:15 +03:00
parent 2809cc9b86
commit 8c918ff136
1 changed files with 11 additions and 10 deletions
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21
src/graphics/render/WorldRenderer.cpp
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@ -113,24 +113,25 @@ bool WorldRenderer::drawChunk(
void WorldRenderer::drawChunks(Chunks* chunks, Camera* camera, Shader* shader) {
renderer->update();
// [warning] this whole method is not thread-safe for chunks
std::vector<size_t> indices;
for (size_t i = 0; i < chunks->volume; i++){
if (chunks->chunks[i] == nullptr)
continue;
indices.push_back(i);
}
float px = camera->position.x / (float)CHUNK_W;
float pz = camera->position.z / (float)CHUNK_D;
std::sort(indices.begin(), indices.end(), [chunks, px, pz](size_t i, size_t j) {
auto a = chunks->chunks[i];
auto b = chunks->chunks[j];
return ((a->x + 0.5f - px)*(a->x + 0.5f - px) +
(a->z + 0.5f - pz)*(a->z + 0.5f - pz)
int px = camera->position.x / (float)CHUNK_W - 0.5f;
int pz = camera->position.z / (float)CHUNK_D - 0.5f;
std::sort(indices.begin(), indices.end(), [chunks, px, pz](auto i, auto j) {
const auto& a = chunks->chunks[i];
const auto& b = chunks->chunks[j];
return ((a->x - px)*(a->x - px) +
(a->z - pz)*(a->z - pz)
>
(b->x + 0.5f - px)*(b->x + 0.5f - px) +
(b->z + 0.5f - pz)*(b->z + 0.5f - pz));
(b->x - px)*(b->x - px) +
(b->z - pz)*(b->z - pz));
});
bool culling = engine->getSettings().graphics.frustumCulling.get();
if (culling) {
frustumCulling->update(camera->getProjView());