1 files changed, 22 insertions, 8 deletions
diff --git a/src/main.rs b/src/main.rs
index 1ce78ed..662fc05 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,7 +1,7 @@
 pub mod spatial;
 
 use anyhow::Result;
-use glam::{Affine3A, DAffine3, DVec3, Vec3};
+use glam::{Affine3A, DAffine3, DVec3};
 use indicatif::ProgressIterator;
 use log::{debug, info};
 use osm_pbf_reader::{Blobs, data::primitives::Primitive};
@@ -68,7 +68,7 @@ fn main() -> Result<()> {
     let store = ResourceStore::new_memory();
 
     info!("Exporting resources...");
-    let (_, root) = export_level(&tree, &store)?;
+    let (_, root) = export_level(&tree, &store, &mut Vec::new())?;
     let entry = Some(store.set(&RespackEntry {
         c_spatial_index: vec![root],
         ..Default::default()
@@ -81,26 +81,40 @@ fn main() -> Result<()> {
     Ok(())
 }
 
-fn export_level(node: &Octtree, store: &ResourceStore) -> Result<(AABB, Resource<SpatialIndex>)> {
+fn export_level(
+    node: &Octtree,
+    store: &ResourceStore,
+    important_features: &mut Vec<DVec3>,
+) -> Result<(AABB, Resource<SpatialIndex>)> {
+    let mut lod_features = Vec::new();
     let child = node
         .children
         .iter()
         .flat_map(|e| e.as_slice())
         .flatten()
         .flatten()
-        .map(|o| export_level(o, store))
+        .map(|o| export_level(o, store, &mut lod_features))
         .collect::<Result<Vec<_>>>()?;
 
-    let prefab = if node.elems.is_empty() {
-        None
-    } else {
+    let prefab = {
+        let points = if node.elems.is_empty() {
+            lod_features
+        } else {
+            node.elems.iter().map(|(e, _id)| *e).collect()
+        };
+
         let local_origin = node.center;
         let mut g = GraphicsPart::default();
 
         use weareshared::graphics::GraphicsCommand::*;
         g.push(StrokeWidth(0.001));
         g.push(Stroke(5));
-        g.push(Point(Vec3::ZERO));
+        for (i, p) in points.into_iter().enumerate() {
+            g.push(Point((p - local_origin).as_vec3()));
+            if i % 8 == 0 {
+                important_features.push(p);
+            }
+        }
 
         Some(store.set(&Prefab {
             transform: Some(DAffine3::from_translation(local_origin)),