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Add per-bone meta to Skeleton3D

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Individual bones are not represented as `Node`s in Godot, in order to support meta functionality for them the skeleton has to carry the information similarly to how other per-bone properties are handled.
- Also adds support for GLTF import/export
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demolke 2024-08-30 22:40:11 +02:00
parent 6daa6a8513
commit 0468bea899
14 changed files with 617 additions and 115 deletions
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57
modules/gltf/tests/test_gltf_extras.h
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@ -41,6 +41,7 @@
#include "modules/gltf/gltf_document.h"
#include "modules/gltf/gltf_state.h"
#include "scene/3d/mesh_instance_3d.h"
#include "scene/3d/skeleton_3d.h"
#include "scene/main/window.h"
#include "scene/resources/3d/primitive_meshes.h"
#include "scene/resources/material.h"
@ -158,6 +159,62 @@ TEST_CASE("[SceneTree][Node] GLTF test mesh and material meta export and import"
memdelete(original);
memdelete(loaded);
}
TEST_CASE("[SceneTree][Node] GLTF test skeleton and bone export and import") {
// Setup scene.
Skeleton3D *skeleton = memnew(Skeleton3D);
skeleton->set_name("skeleton");
Dictionary skeleton_extras;
skeleton_extras["node_type"] = "skeleton";
skeleton->set_meta("extras", skeleton_extras);
skeleton->add_bone("parent");
skeleton->set_bone_rest(0, Transform3D());
Dictionary parent_bone_extras;
parent_bone_extras["bone"] = "i_am_parent_bone";
skeleton->set_bone_meta(0, "extras", parent_bone_extras);
skeleton->add_bone("child");
skeleton->set_bone_rest(1, Transform3D());
skeleton->set_bone_parent(1, 0);
Dictionary child_bone_extras;
child_bone_extras["bone"] = "i_am_child_bone";
skeleton->set_bone_meta(1, "extras", child_bone_extras);
// We have to have a mesh to link with skeleton or it will not get imported.
Ref<PlaneMesh> meshdata = memnew(PlaneMesh);
meshdata->set_name("planemesh");
MeshInstance3D *mesh = memnew(MeshInstance3D);
mesh->set_mesh(meshdata);
mesh->set_name("mesh_instance_3d");
Node3D *scene = memnew(Node3D);
SceneTree::get_singleton()->get_root()->add_child(scene);
scene->add_child(skeleton);
scene->add_child(mesh);
scene->set_name("node3d");
// Now that both skeleton and mesh are part of scene, link them.
mesh->set_skeleton_path(mesh->get_path_to(skeleton));
// Convert to GLFT and back.
String tempfile = OS::get_singleton()->get_cache_path().path_join("gltf_bone_extras");
Node *loaded = _gltf_export_then_import(scene, tempfile);
// Compare the results.
CHECK(loaded->get_name() == "node3d");
Skeleton3D *result = Object::cast_to<Skeleton3D>(loaded->find_child("Skeleton3D", false, true));
CHECK(result->get_bone_name(0) == "parent");
CHECK(Dictionary(result->get_bone_meta(0, "extras"))["bone"] == "i_am_parent_bone");
CHECK(result->get_bone_name(1) == "child");
CHECK(Dictionary(result->get_bone_meta(1, "extras"))["bone"] == "i_am_child_bone");
memdelete(skeleton);
memdelete(mesh);
memdelete(scene);
memdelete(loaded);
}
} // namespace TestGltfExtras
#endif // TOOLS_ENABLED