1 files changed, 7 insertions, 4 deletions

diff --git a/gfx/src/asset/asset_cache.c b/gfx/src/asset/asset_cache.c
index 1d64d66..d077421 100644
--- a/gfx/src/asset/asset_cache.c
+++ b/gfx/src/asset/asset_cache.c
@@ -152,10 +152,13 @@ static void log_model_loaded(const LoadModelCmd* cmd) {
 static Model* clone_model(const Model* model) {
   assert(model);
 
-  // Only the Anima needs to be (shallow) cloned since everything else in the
-  // model is static. Also note that only the Anima's joints and animation state
-  // need to be cloned; all other members can be shared. So a shallow clone of
-  // the anima is sufficient.
+  // Only the Anima needs to be cloned since everything else in the model is
+  // static.
+  //
+  // The Anima can be partially shallow-cloned. Skeletons and animations are
+  // static and can be shared with the original Anima. Other members are
+  // deep-cloned. Skeletons in particular point back to their Anima, so need to
+  // be deep-cloned.
   const SceneNode* root = mem_get_node(model->root);
   if (gfx_get_node_type(root) == AnimaNode) {
     const Anima* anima      = gfx_get_node_anima(root);