PulseStudio/VoxelEngine
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optimize it even more

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This commit is contained in:
MihailRis
2024-11-13 04:46:21 +03:00
parent a21d87717e
commit fc3d5c5484
3 changed files with 33 additions and 21 deletions
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src/graphics/render/WorldRenderer.cpp
+14 -20
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@@ -139,38 +139,32 @@ void WorldRenderer::drawChunks(
// [warning] this whole method is not thread-safe for chunks
int chunksWidth = chunks->getWidth();
int chunksOffsetX = chunks->getOffsetX();
int chunksOffsetY = chunks->getOffsetY();
if (indices.size() != chunks->getVolume()) {
indices.clear();
for (size_t i = 0; i < chunks->getVolume(); i++) {
indices.emplace_back(i);
for (int i = 0; i < chunks->getVolume(); i++) {
indices.push_back(ChunksSortEntry {i, 0});
}
}
float px = camera.position.x / static_cast<float>(CHUNK_W) - 0.5f;
float pz = camera.position.z / static_cast<float>(CHUNK_D) - 0.5f;
int chunksWidth = chunks->getWidth();
int chunksOffsetX = chunks->getOffsetX();
int chunksOffsetY = chunks->getOffsetY();
util::insertion_sort(indices.begin(), indices.end(),
[chunks, px, pz, chunksWidth, chunksOffsetX, chunksOffsetY]
(auto i, auto j)
{
int ax = i % chunksWidth + chunksOffsetX;
int az = i / chunksWidth + chunksOffsetY;
int bx = j % chunksWidth + chunksOffsetX;
int bz = j / chunksWidth + chunksOffsetY;
auto adx = (ax - px);
auto adz = (az - pz);
auto bdx = (bx - px);
auto bdz = (bz - pz);
return (adx * adx + adz * adz > bdx * bdx + bdz * bdz);
});
for (auto& index : indices) {
int x = index.index % chunksWidth + chunksOffsetX - px;
int z = index.index / chunksWidth + chunksOffsetY - pz;
index.d = x * x + z * z;
}
util::insertion_sort(indices.begin(), indices.end());
bool culling = engine->getSettings().graphics.frustumCulling.get();
if (culling) {
frustumCulling->update(camera.getProjView());
}
chunks->visible = 0;
for (size_t i = 0; i < indices.size(); i++) {
chunks->visible += drawChunk(indices[i], camera, shader, culling);
chunks->visible += drawChunk(indices[i].index, camera, shader, culling);
}
}