PulseStudio/VoxelEngine
PulseStudio/VoxelEngine
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small optimization

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This commit is contained in:
MihailRis 2024-05-17 21:30:01 +03:00
parent b399679c31
commit a93906d0f1
1 changed files with 7 additions and 6 deletions
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13
src/graphics/render/WorldRenderer.cpp
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@ -115,22 +115,23 @@ 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);
indices.emplace_back(i);
}
float px = camera->position.x / (float)CHUNK_W - 0.5f;
float 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 - px)*(b->x - px) +
(b->z - pz)*(b->z - pz));
auto adx = (a->x - px);
auto adz = (a->z - pz);
auto bdx = (b->x - px);
auto bdz = (b->z - pz);
return (adx*adx + adz*adz > bdx*bdx + bdz*bdz);
});
bool culling = engine->getSettings().graphics.frustumCulling.get();
if (culling) {