2 files changed, 63 insertions, 20 deletions

diff --git a/modules/gltf/extensions/gltf_document_extension.cpp b/modules/gltf/extensions/gltf_document_extension.cpp
index 56519f70d3..f997fe8f66 100644
--- a/modules/gltf/extensions/gltf_document_extension.cpp
+++ b/modules/gltf/extensions/gltf_document_extension.cpp
@@ -31,50 +31,77 @@
 #include "gltf_document_extension.h"
 
 void GLTFDocumentExtension::_bind_methods() {
-	GDVIRTUAL_BIND(_get_supported_extensions);
+	// Import process.
 	GDVIRTUAL_BIND(_import_preflight, "state", "extensions");
+	GDVIRTUAL_BIND(_get_supported_extensions);
+	GDVIRTUAL_BIND(_parse_node_extensions, "state", "gltf_node", "extensions");
+	GDVIRTUAL_BIND(_generate_scene_node, "state", "gltf_node", "scene_parent");
 	GDVIRTUAL_BIND(_import_post_parse, "state");
 	GDVIRTUAL_BIND(_import_node, "state", "gltf_node", "json", "node");
 	GDVIRTUAL_BIND(_import_post, "state", "root");
+	// Export process.
 	GDVIRTUAL_BIND(_export_preflight, "root");
+	GDVIRTUAL_BIND(_convert_scene_node, "state", "gltf_node", "scene_node");
 	GDVIRTUAL_BIND(_export_node, "state", "gltf_node", "json", "node");
 	GDVIRTUAL_BIND(_export_post, "state");
 }
 
+// Import process.
+Error GLTFDocumentExtension::import_preflight(Ref<GLTFState> p_state, Vector<String> p_extensions) {
+	ERR_FAIL_NULL_V(p_state, ERR_INVALID_PARAMETER);
+	int err = OK;
+	GDVIRTUAL_CALL(_import_preflight, p_state, p_extensions, err);
+	return Error(err);
+}
+
 Vector<String> GLTFDocumentExtension::get_supported_extensions() {
 	Vector<String> ret;
 	GDVIRTUAL_CALL(_get_supported_extensions, ret);
 	return ret;
 }
 
-Error GLTFDocumentExtension::import_post(Ref<GLTFState> p_state, Node *p_root) {
-	ERR_FAIL_NULL_V(p_root, ERR_INVALID_PARAMETER);
+Error GLTFDocumentExtension::parse_node_extensions(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &p_extensions) {
 	ERR_FAIL_NULL_V(p_state, ERR_INVALID_PARAMETER);
+	ERR_FAIL_NULL_V(p_gltf_node, ERR_INVALID_PARAMETER);
 	int err = OK;
-	GDVIRTUAL_CALL(_import_post, p_state, p_root, err);
+	GDVIRTUAL_CALL(_parse_node_extensions, p_state, p_gltf_node, p_extensions, err);
 	return Error(err);
 }
 
-Error GLTFDocumentExtension::import_preflight(Ref<GLTFState> p_state, Vector<String> p_extensions) {
+Node3D *GLTFDocumentExtension::generate_scene_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Node *p_scene_parent) {
+	ERR_FAIL_NULL_V(p_state, nullptr);
+	ERR_FAIL_NULL_V(p_gltf_node, nullptr);
+	ERR_FAIL_NULL_V(p_scene_parent, nullptr);
+	Node3D *ret_node = nullptr;
+	GDVIRTUAL_CALL(_generate_scene_node, p_state, p_gltf_node, p_scene_parent, ret_node);
+	return ret_node;
+}
+
+Error GLTFDocumentExtension::import_post_parse(Ref<GLTFState> p_state) {
 	ERR_FAIL_NULL_V(p_state, ERR_INVALID_PARAMETER);
 	int err = OK;
-	GDVIRTUAL_CALL(_import_preflight, p_state, p_extensions, err);
+	GDVIRTUAL_CALL(_import_post_parse, p_state, err);
 	return Error(err);
 }
 
-Error GLTFDocumentExtension::import_post_parse(Ref<GLTFState> p_state) {
+Error GLTFDocumentExtension::import_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_dict, Node *p_node) {
 	ERR_FAIL_NULL_V(p_state, ERR_INVALID_PARAMETER);
+	ERR_FAIL_NULL_V(p_gltf_node, ERR_INVALID_PARAMETER);
+	ERR_FAIL_NULL_V(p_node, ERR_INVALID_PARAMETER);
 	int err = OK;
-	GDVIRTUAL_CALL(_import_post_parse, p_state, err);
+	GDVIRTUAL_CALL(_import_node, p_state, p_gltf_node, r_dict, p_node, err);
 	return Error(err);
 }
 
-Error GLTFDocumentExtension::export_post(Ref<GLTFState> p_state) {
+Error GLTFDocumentExtension::import_post(Ref<GLTFState> p_state, Node *p_root) {
+	ERR_FAIL_NULL_V(p_root, ERR_INVALID_PARAMETER);
 	ERR_FAIL_NULL_V(p_state, ERR_INVALID_PARAMETER);
 	int err = OK;
-	GDVIRTUAL_CALL(_export_post, p_state, err);
+	GDVIRTUAL_CALL(_import_post, p_state, p_root, err);
 	return Error(err);
 }
+
+// Export process.
 Error GLTFDocumentExtension::export_preflight(Node *p_root) {
 	ERR_FAIL_NULL_V(p_root, ERR_INVALID_PARAMETER);
 	int err = OK;
@@ -82,20 +109,25 @@ Error GLTFDocumentExtension::export_preflight(Node *p_root) {
 	return Error(err);
 }
 
-Error GLTFDocumentExtension::import_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_dict, Node *p_node) {
+void GLTFDocumentExtension::convert_scene_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Node *p_scene_node) {
+	ERR_FAIL_NULL(p_state);
+	ERR_FAIL_NULL(p_gltf_node);
+	ERR_FAIL_NULL(p_scene_node);
+	GDVIRTUAL_CALL(_convert_scene_node, p_state, p_gltf_node, p_scene_node);
+}
+
+Error GLTFDocumentExtension::export_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_dict, Node *p_node) {
 	ERR_FAIL_NULL_V(p_state, ERR_INVALID_PARAMETER);
 	ERR_FAIL_NULL_V(p_gltf_node, ERR_INVALID_PARAMETER);
 	ERR_FAIL_NULL_V(p_node, ERR_INVALID_PARAMETER);
 	int err = OK;
-	GDVIRTUAL_CALL(_import_node, p_state, p_gltf_node, r_dict, p_node, err);
+	GDVIRTUAL_CALL(_export_node, p_state, p_gltf_node, r_dict, p_node, err);
 	return Error(err);
 }
 
-Error GLTFDocumentExtension::export_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_dict, Node *p_node) {
+Error GLTFDocumentExtension::export_post(Ref<GLTFState> p_state) {
 	ERR_FAIL_NULL_V(p_state, ERR_INVALID_PARAMETER);
-	ERR_FAIL_NULL_V(p_gltf_node, ERR_INVALID_PARAMETER);
-	ERR_FAIL_NULL_V(p_node, ERR_INVALID_PARAMETER);
 	int err = OK;
-	GDVIRTUAL_CALL(_export_node, p_state, p_gltf_node, r_dict, p_node, err);
+	GDVIRTUAL_CALL(_export_post, p_state, err);
 	return Error(err);
 }
diff --git a/modules/gltf/extensions/gltf_document_extension.h b/modules/gltf/extensions/gltf_document_extension.h
index 43e29ea0ab..7cc9ca592f 100644
--- a/modules/gltf/extensions/gltf_document_extension.h
+++ b/modules/gltf/extensions/gltf_document_extension.h
@@ -40,20 +40,31 @@ protected:
 	static void _bind_methods();
 
 public:
-	virtual Vector<String> get_supported_extensions();
+	// Import process.
 	virtual Error import_preflight(Ref<GLTFState> p_state, Vector<String> p_extensions);
+	virtual Vector<String> get_supported_extensions();
+	virtual Error parse_node_extensions(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &p_extensions);
+	virtual Node3D *generate_scene_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Node *p_scene_parent);
 	virtual Error import_post_parse(Ref<GLTFState> p_state);
-	virtual Error export_post(Ref<GLTFState> p_state);
+	virtual Error import_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_json, Node *p_node);
 	virtual Error import_post(Ref<GLTFState> p_state, Node *p_node);
+	// Export process.
 	virtual Error export_preflight(Node *p_state);
-	virtual Error import_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_json, Node *p_node);
+	virtual void convert_scene_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Node *p_scene_node);
 	virtual Error export_node(Ref<GLTFState> p_state, Ref<GLTFNode> p_gltf_node, Dictionary &r_json, Node *p_node);
-	GDVIRTUAL0R(Vector<String>, _get_supported_extensions);
+	virtual Error export_post(Ref<GLTFState> p_state);
+
+	// Import process.
 	GDVIRTUAL2R(int, _import_preflight, Ref<GLTFState>, Vector<String>);
+	GDVIRTUAL0R(Vector<String>, _get_supported_extensions);
+	GDVIRTUAL3R(int, _parse_node_extensions, Ref<GLTFState>, Ref<GLTFNode>, Dictionary);
+	GDVIRTUAL3R(Node3D *, _generate_scene_node, Ref<GLTFState>, Ref<GLTFNode>, Node *);
 	GDVIRTUAL1R(int, _import_post_parse, Ref<GLTFState>);
 	GDVIRTUAL4R(int, _import_node, Ref<GLTFState>, Ref<GLTFNode>, Dictionary, Node *);
 	GDVIRTUAL2R(int, _import_post, Ref<GLTFState>, Node *);
+	// Export process.
 	GDVIRTUAL1R(int, _export_preflight, Node *);
+	GDVIRTUAL3(_convert_scene_node, Ref<GLTFState>, Ref<GLTFNode>, Node *);
 	GDVIRTUAL4R(int, _export_node, Ref<GLTFState>, Ref<GLTFNode>, Dictionary, Node *);
 	GDVIRTUAL1R(int, _export_post, Ref<GLTFState>);
 };