koobas.hobune.stream
Is it possible to save loaded textures and reuse after close app?
HI. I would like to know whether it's possible to save textures loaded from paths. My app have a function that load thousands of textures from paths than it takes a lot like few minutes. Even I want to use textures again that totally the same as one previously loaded, I have to load them and wait till this process completes in every launching if I close my app and open it later. Hopefully there's a way to save these textures after it's loaded once, than from the 2nd time just reuse them in runtime without that loading phase.
Thank you.
IEnumerator LoadTexturesFromPath( string[] _decodedImageFiles )
{
// _decodedImageFiles.Length is about 3000+
Texture2D[] texs = new Texture2D[ _decodedImageFiles.Length ];
// this loop costs about a few minutes
for (int i = 0; i < _decodedImageFiles.Length; ++i)
{
var path = _decodedImageFiles[i];
Texture2D tex = null;
using (var request = UnityWebRequestTexture.GetTexture(path, true))
{
yield return request.SendWebRequest();
tex = DownloadHandlerTexture.GetContent(request);
}
texs [i] = tex;
}
// love to save this loadResult.
loadResult= texs ;
}
/////// want to do like this
Texture2D[] loadedTextures, loadResult;
bool loaded;
IEnumerator Start()
{
if(loaded)
{
// from the 2nd time
loadedTextures = GetLoadedTexture();
}
else
{
// only at the 1st time
yield return LoadTexturesFromPath();
loadedTextures = loadResult;
}
// use loadedTextures
// .......
}
When you close the app, the process running dies. This frees all of the memory that was being used, which is why you need to reload your textures each time you re open your app. Leaving thousands of textures loaded (in memory, ready to go) would mean dedicating tons of memory (depending on the size, think 1+GB of RAM). This is especially problematic if it's a mobile app where battery drainage also comes in to play.
I'm not sure what you're using thousands of textures at the same time for, but is spacing this out (loading them just when you actually need to use them) not an option? Several minutes of hang on each open for a seemingly unnecessary amount of textures all at once really isn't something that should be pursued.
