шейдеры билбордов

src/scenes/streaming/streaming_world_loader.gd

@@ -15,6 +15,7 @@ const M2_NATIVE_ANIMATOR_SCRIPT := preload("res://src/scenes/streaming/m2_native
 const REQUIRED_BAKED_TILE_FORMAT_VERSION := 4
 const REQUIRED_SPLAT_TILE_FORMAT_VERSION := 1
 const REQUIRED_CONTROL_SPLAT_TILE_FORMAT_VERSION := 3
+const M2_MATERIAL_REFRESH_VERSION := 1
 const WMO_MATERIAL_REFRESH_VERSION := 3
 
 const TILE_SIZE := 533.33333
@@ -4400,9 +4401,46 @@ func _request_m2_mesh_load(normalized_rel: String) -> void:
 func _prepare_m2_mesh_for_runtime(normalized_rel: String, mesh: Mesh) -> Mesh:
 	if mesh == null:
 		return null
+	if int(mesh.get_meta("wow_m2_material_refresh_version", 0)) >= M2_MATERIAL_REFRESH_VERSION:
+		return mesh
+	var rebuilt := _rebuild_m2_mesh_from_raw(normalized_rel)
+	if rebuilt != null:
+		return rebuilt
+	mesh.set_meta("wow_m2_material_refresh_version", M2_MATERIAL_REFRESH_VERSION)
 	return mesh
 
 
+func _prepare_m2_node_for_runtime(normalized_rel: String, root: Node3D) -> void:
+	if root == null:
+		return
+	for mesh_instance in _find_mesh_instances_recursive(root):
+		if mesh_instance == null or mesh_instance.mesh == null:
+			continue
+		var prepared := _prepare_m2_mesh_for_runtime(normalized_rel, mesh_instance.mesh)
+		if prepared != null:
+			mesh_instance.mesh = prepared
+
+
+func _rebuild_m2_mesh_from_raw(normalized_rel: String) -> Mesh:
+	if normalized_rel.is_empty() or not ClassDB.class_exists("M2Loader"):
+		return null
+	var abs_path := ProjectSettings.globalize_path(extracted_dir.path_join(normalized_rel))
+	if not FileAccess.file_exists(abs_path):
+		return null
+	var loader = ClassDB.instantiate("M2Loader")
+	if loader == null:
+		return null
+	var data: Dictionary = loader.call("load_m2", abs_path)
+	if data.is_empty():
+		return null
+	var prototype: Node3D = M2_BUILDER_SCRIPT.build(data, extracted_dir)
+	if prototype == null:
+		return null
+	var rebuilt := _find_first_mesh_recursive(prototype)
+	prototype.free()
+	return rebuilt
+
+
 func _extract_first_mesh_from_m2_resource(resource: Resource) -> Mesh:
 	if resource is Mesh:
 		return resource as Mesh
@@ -4572,7 +4610,9 @@ func _get_or_load_m2_prototype(rel_path: String) -> Node3D:
 	if normalized_rel.is_empty():
 		return null
 	if _m2_scene_cache.has(normalized_rel):
-		return _m2_scene_cache[normalized_rel]
+		var cached: Node3D = _m2_scene_cache[normalized_rel]
+		_prepare_m2_node_for_runtime(normalized_rel, cached)
+		return cached
 	if _m2_missing_cache.has(normalized_rel):
 		return null
 
@@ -4586,6 +4626,7 @@ func _get_or_load_m2_prototype(rel_path: String) -> Node3D:
 		if resource is PackedScene:
 			var node = (resource as PackedScene).instantiate()
 			if node is Node3D:
+				_prepare_m2_node_for_runtime(normalized_rel, node as Node3D)
 				_m2_scene_cache[normalized_rel] = node as Node3D
 				return node as Node3D
 		break
@@ -4768,7 +4809,9 @@ func _get_or_load_m2_material_prototype(normalized_rel: String) -> Node3D:
 	if normalized_rel.is_empty():
 		return null
 	if _m2_scene_cache.has(normalized_rel):
-		return _m2_scene_cache[normalized_rel]
+		var cached: Node3D = _m2_scene_cache[normalized_rel]
+		_prepare_m2_node_for_runtime(normalized_rel, cached)
+		return cached
 
 	for cache_res_path in _get_m2_cache_resource_paths(normalized_rel, [".tscn"]):
 		if not ResourceLoader.exists(cache_res_path):
@@ -4777,6 +4820,7 @@ func _get_or_load_m2_material_prototype(normalized_rel: String) -> Node3D:
 		if resource is PackedScene:
 			var node = (resource as PackedScene).instantiate()
 			if node is Node3D:
+				_prepare_m2_node_for_runtime(normalized_rel, node as Node3D)
 				_m2_scene_cache[normalized_rel] = node as Node3D
 				return node as Node3D
 	return null