Multiple manifest files?

[Hagop]

Dear all

 

This question might seem naive and is the following. I have a created a scene using  createScene = function()  and I import hundreds of meshes (.babylon) into the scene (using AJAX PHP MySQL call -- but this is irrelevant). 

Do I need to create  a manifest file for each babylon file that I import to use the IndexedDB feature?

Reading the tutorials on the internet, I came to the conclusion that there is one manifest file for an imported scene using BABYLON.SceneLoader.Load , which includes all meshes and hence multiple calls to BABYLON.SceneLoader.ImportMesh is not taken into consideration.

[RaananW]

manifest file is optional. you don't have to add it at all. there will be an error when the engine tries downloading it, but it won't hurt the user's experience.

In general, you need a manifest per .babylon file.

[Hagop]

• isn't the manifest file mandatory to utilize indexedDB?
• isn't there a way to create one manifest file and type in all babylon files to be imported?

[RaananW]

* yes

* not at the moment (or better - not as far as I know)

[Hagop]

So please clarify, isn't there a contradiction since you stated  manifest file is optional. you don't have to add it at all. there will be an error when the engine tries downloading it

[RaananW]

not , it is not contradicting. You dont have to use indexeddb, you dont have to offer offline support. if you dont need that, you dont need a manifest at all.

[Hagop]

I understand, thanks, but is indexedDB only for offline use? Wouldn't it give a heavily loaded web site a performance boost?

Raanan, I sent you a personal tweet. Please reply

[RaananW]

if you would check you'd see I already answered

and no, indexeddb won't give you any boost. it will only store assets and allow you to use them when the user is offline.

[davrous]

Hi!

 I've written the IDB layer mainly for offline usage indeed. I was also expecting a bit of performance boost thinking that loading from the local DB would be faster than going through the local cache but I've never seen that occuring.

 Caching the resources is manifest based and can be disactivated via: engine.enableOfflineSupport = false; to prevent having 404.

 I could imagine adding a flag like "forceOfflineSupport" to download all assets and store them in IDB without .manifest files but how would you manage files versions then? 

Bye,

David