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Mark neighbor chunks dirty when voxels change

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This commit is contained in:
Elias Stepanik 2025-06-09 13:10:14 +02:00
parent a3d759aa59
commit 957c9cffa7
1 changed files with 31 additions and 0 deletions
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31
client/src/plugins/environment/systems/voxels/octree.rs
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@ -43,6 +43,7 @@ impl SparseVoxelOctree {
self.dirty.push(dirty_voxel);
let key = chunk_key_from_world(self, position);
self.dirty_chunks.insert(key);
self.mark_neighbor_chunks_dirty(position);
self.occupied_chunks.insert(key);
@ -92,6 +93,7 @@ impl SparseVoxelOctree {
// mark the chunk
let key = chunk_key_from_world(self, position);
self.dirty_chunks.insert(key);
self.mark_neighbor_chunks_dirty(position);
Self::remove_recursive(
&mut self.root,
@ -111,6 +113,35 @@ impl SparseVoxelOctree {
self.dirty_chunks.clear();
}
fn mark_neighbor_chunks_dirty(&mut self, position: Vec3) {
let key = chunk_key_from_world(self, position);
let step = self.get_spacing_at_depth(self.max_depth);
let half = self.size * 0.5;
let gx = ((position.x + half) / step).floor() as i32;
let gy = ((position.y + half) / step).floor() as i32;
let gz = ((position.z + half) / step).floor() as i32;
let lx = gx - key.0 * CHUNK_SIZE;
let ly = gy - key.1 * CHUNK_SIZE;
let lz = gz - key.2 * CHUNK_SIZE;
let mut neighbors = [
(lx == 0, ChunkKey(key.0 - 1, key.1, key.2)),
(lx == CHUNK_SIZE - 1, ChunkKey(key.0 + 1, key.1, key.2)),
(ly == 0, ChunkKey(key.0, key.1 - 1, key.2)),
(ly == CHUNK_SIZE - 1, ChunkKey(key.0, key.1 + 1, key.2)),
(lz == 0, ChunkKey(key.0, key.1, key.2 - 1)),
(lz == CHUNK_SIZE - 1, ChunkKey(key.0, key.1, key.2 + 1)),
];
for (cond, n) in neighbors.iter() {
if *cond && self.occupied_chunks.contains(n) {
self.dirty_chunks.insert(*n);
}
}
}
fn remove_recursive(
node: &mut OctreeNode,
x: f32,