SceneLoader

[hw3web]

Hi there

 

I try to load babylon file from STRING, 

 

I found : BABYLON.SceneLoader.Load("", "data:...", engine, function (newScene) { });

 

on : http://doc.babylonjs.com/exporters/Working_with_Blender

 

but it just don't show model , even if it is only box .

 

I am interested can I put something like 

var scenetexture = "data:image/png;base64,iVBORw0KGgo ...";

var scenebabylon = "data:{ .......}";

 

BABYLON.SceneLoader.Load(scenetexture, scenebabylon, engine, function (newScene) { });

 

 

and fallowing question if that possible , can we use more then one texture in string as texture for model in babylon scene ??

 

Regards

 

[GameMonetize]

can you setup a small playground to see what is going wrong?

[hw3web]

http://www.babylonjs-playground.com/#1OIKHP#4

 

I try use one texture , if that could be corrected how to do with 2 textures ?

[hw3web]

So still nobody can tell me why it don't want to loaded ?

[iiceman]

That playground somehow doesn't work for me. I get an error: 

  Compilation error

Cannot read property 'replace' of null

[Dad72]

Your error is that the way the SceneLoader.Load() function should not receive a picture "scenetexture" but a path where this file .babylon is.

Then load this file .babylon to find images. but if it does not exist (the images) the scene returns an error.

 

I think your method to load the scene on the playground, is not a good method.

[hw3web]

Hi there

 

that is a reasons why I put this topic on: to ask if anyone know how to load scene from string not file that was suggest on : 

http://doc.babylonjs.com/exporters/Working_with_Blender

 

I know is not working 

 

but I tried use structure 

BABYLON.SceneLoader.Load("", "data:...", engine, function (newScene) { });

 

I try to get it to work

 

 

so is there anyone who will be able to solve this miss use loading 

[Dad72]

Hi,
 
Sorry, I did not watch the first post
 
I do not think the playground it may be possible models with textures from external link.
maybe manually adding external links in babylon file. and add an http link in the playground. maybe it could work.
 

BABYLON.SceneLoader.Load("http://www.link.com/folderMeshAndTextures/", "mesh.babylon", engine, function (newScene) { });

[hw3web]

Question is different : how to load scene from STRING ??  and in this same time with textures ???

you can playground load mash from other server :

http://playground.babylonjs.com/#1VOQP6#6

and here you can see I loading mesh from string not link,

But how to load full scene that will also keep textures as well in strings !???? 

[Dad72]

I really do not understand what you try to do.

 

here:

BABYLON.SceneLoader.Load("", scenelink, engine, function (newscene) {

 

You load a file name is path. and in the way you leave blank

 

The first parameter of the Load function is not a name like ImportMesh function but with a path to the file szene.

 

BABYLON.SceneLoader.Load("path", "file.babylon",

 

BABYLON.SceneLoader.ImportMesh("name", "path",  "file.babylon",

[hw3web]

What I try to do is load scene and texture from browser storage not server if that make any sense .

 

to be able to do this I  need have texture(s) and scene in string not as files 

 

 

So I have all in strings texture(s) and scene in string value and now I try load it on stage.

[rodrigop]

Try to look at here:

https://github.com/BabylonJS/Babylon.js/blob/1f3b216f2e91117c9876e634de24b99764f19654/src/Loading/babylon.sceneLoader.ts#L32

 

On that file you can also look at the declaration of Load. Seems like the loader is plugin based, and depends on the extension of the filename.

 

Anyway you can create your own loader plugin like this:
 

here https://github.com/BabylonJS/Babylon.js/blob/1f3b216f2e91117c9876e634de24b99764f19654/src/Loading/Plugins/babylon.babylonFileLoader.ts#L1351

 

Hope that helps.

[Dad72]

OK I see. 

 

Your "data:" string maybe not good. and you must call images from external links.

 

see mistakes in the Console (f12)

[rodrigop]

Maybe you can also look at overriding the Tools LoadFile Fn:

 

https://github.com/BabylonJS/Babylon.js/blob/53c95c2fbf0cc4776d1e1f0ed1883ae61e2d5c34/src/Tools/babylon.tools.js#L201

 

Or even overriding XMLHttpRequest.open()?

http://stackoverflow.com/questions/7775767/javascript-overriding-xmlhttprequest-open

[GameMonetize]

@hw3web : This works for me, I can see the loaded scene and texture from your data string

[hw3web]

I found problem if I want to use

 

 BABYLON.SceneLoader.Load 

 

and scene is string 

 

data:{ ..... works when I want load via

 

 BABYLON.SceneLoader.ImportMesh("name", "path",  "data: { ...} ",

 

bat not with Load as full scene - I am not sure why ???

 

Anyone any idea ??

 

I even try file: 

[GameMonetize]

Repro on playground ?

[hw3web]

OK is look like all is fine,

string for texture and scene loading from string

texture is replace by overwrite BABYLON.TOOLS

http://playground.babylonjs.com/#1VOQP6#20

, but

1) why I see picture without transparency - as it is png with alpha as cloud,

2) and why this message about camera !???

[GameMonetize]

Sounds better

 

The error is because the playground checks if the returned scene contains a camera and in your case there is no returned scene so a default one is created with no camera. Your scene is only created when the file is loaded. So just do not take care of this message

 

For the texture, as there is no extension due to string loading, you have to manually get the texture once loaded and set hasAlpha = true

[hw3web]

is this {"name":"1texture.png","level":1,"hasAlpha":1 not enought ??? directly on scene !???  - or should exporter be updated ?

 

in string is image/png information provided

[GameMonetize]

Ok I found why: just remove "checkReadyOnlyOnce":true because the first check is done when the texture is not loaded and thus alpha testing is set to off and remains like this