Does Godot cache "load"ed resources?

system · April 4, 2018, 9:11pm


	Attention	Topic was automatically imported from the old Question2Answer platform.
	Asked By	jarlowrey

I am loading some resources dynamically (using load instead of preload) because it is simpler to do so in code. However, I am worried that doing so is not performant. Are subsequent calls to load as resource (memory/cpu) instensive as the first call?

system · April 4, 2018, 9:29pm


	Reply From:	hungrymonkey

github.com

godotengine/godot/blob/90de1d236c88a57bc6c8dd705117a41c56d2287a/core/io/resource_loader.cpp#L207


      
          		local_path = "res://" + p_path;
          	else
          		local_path = ProjectSettings::get_singleton()->localize_path(p_path);
          
          	if (!p_no_cache && ResourceCache::has(local_path)) {
          
          		if (OS::get_singleton()->is_stdout_verbose())
          			print_line("load resource: " + local_path + " (cached)");
          		if (r_error)
          			*r_error = OK;
          		return RES(ResourceCache::get(local_path));
          	}
          
          	bool xl_remapped = false;
          	String path = _path_remap(local_path, &xl_remapped);
          
          	ERR_FAIL_COND_V(path == "", RES());
          
          	if (OS::get_singleton()->is_stdout_verbose())
          		print_line("load resource: " + path);

github.com

godotengine/godot/blob/34c988cfa92f19c232b65990704816ba1c7d2622/core/resource.h#L150


      
          	Resource();
          	~Resource();
          };
          
          typedef Ref<Resource> RES;
          
          class ResourceCache {
          	friend class Resource;
          	friend class ResourceLoader; //need the lock
          	static RWLock *lock;
          	static HashMap<String, Resource *> resources;
          	friend void unregister_core_types();
          	static void clear();
          	friend void register_core_types();
          	static void setup();
          
          public:
          	static void reload_externals();
          	static bool has(const String &p_path);
          	static Resource *get(const String &p_path);
          	static void dump(const char *p_file = NULL, bool p_short = false);

load is actually cached.

Is there some way to override this? I am loading in scenes that use RNG to size the objects and my RNG is the same every time. (am using Randomize()) - that is, load and preload are only doing it once, and getting those randoms once, then caching them and that’s killing my randomized dreams, dig?

combatvolcano | 2020-10-15 08:02