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✨ collect scene nodes recursively #217

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✨ collect scene nodes recursively #217

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13 changes: 10 additions & 3 deletions crates/renderling/src/gltf.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1236,14 +1236,21 @@ where
self.primitives.iter().flat_map(|(_, rs)| rs.iter())
}

fn nodes_in_scene_recursive<'a>(&'a self, node_index: usize, nodes: &mut Vec<&'a GltfNode>) {
if let Some(node) = self.nodes.get(node_index) {
nodes.push(node);
for child_index in node.children.iter() {
self.nodes_in_scene_recursive(*child_index, nodes);
}
}
}

pub fn nodes_in_scene(&self, scene_index: usize) -> impl Iterator<Item = &GltfNode> {
let scene = self.scenes.get(scene_index);
let mut nodes = vec![];
if let Some(indices) = scene {
for node_index in indices {
if let Some(node) = self.nodes.get(*node_index) {
nodes.push(node);
}
self.nodes_in_scene_recursive(*node_index, &mut nodes);
}
}
nodes.into_iter()
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