1 files changed, 25 insertions, 0 deletions

diff --git a/src/scene/object_impl.h b/src/scene/object_impl.h
new file mode 100644
index 0000000..e864e53
--- /dev/null
+++ b/src/scene/object_impl.h
@@ -0,0 +1,25 @@
+#pragma once
+
+#include <gfx/scene/object.h>
+
+#include "types.h"
+
+typedef struct MeshLink {
+  mesh_idx      mesh;
+  mesh_link_idx next; // Next MeshLink in the list.
+} MeshLink;
+
+/// Scene object.
+///
+/// A SceneObject does not own its Meshes, and they are instead shared for
+/// re-use. The SceneObject consequently embeds a list of MeshLinks as opposed
+/// to a list of Meshes. The MeshLinks define a list of Meshes, which can be
+/// different for each SceneObject. Each SceneObject may then have a unique list
+/// of Meshes, and the Meshes are re-used.
+typedef struct SceneObject {
+  mesh_link_idx mesh_link; /// First MeshLink in the list.
+  skeleton_idx  skeleton;  /// 0 for static objects.
+  // TODO: Can we just store node indices in nodes, not the contained object?
+  node_idx parent; /// Parent SceneNode.
+  aabb3    box;
+} SceneObject;