Add base64 3d Model to scene?

Questions
1

Hi there,

i am trying to add a base64 model to a scene. but get this error message: Unable to load from data:base64

in my code i am loading a 3d Tile wich comes as a gltfArrayBuffer. This arraybuffer is then converted to base64:

_arrayBufferToBase64(buffer: Iterable<number>) {
    var binary = '';
    var bytes = new Uint8Array(buffer);
    var len = bytes.byteLength;
    for (var i = 0; i < len; i++) {
      binary += String.fromCharCode(bytes[i]);
    }
    // return window.btoa(binary);
    return "data:base64," + window.btoa(binary);

  }

to then be added to the scene by:

          let arrayBuffer = tile.content.gltfArrayBuffer;
          let base64 = this._arrayBufferToBase64(arrayBuffer);
          SceneLoader.ShowLoadingScreen = false;
          SceneLoader.Append("", base64, this.scene, function () {

what is the problem here? Can i not load this base64 directly to the scene?

i hope someone can help me here!! Thanks a lot!!

this is the full base64 log:

BJS - [10:23:17]: Unable to load from data:base64,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importScene of undefined from undefined version: undefined, exporter version: undefinedimportScene has failed JSON parse

2

I did try an other way, but get almost the same error:

i here try to directly “convert” the gltfArrayBuffer to a file and then append it to the scene:

          let arrayBuffer = tile.content.gltfArrayBuffer;
          SceneLoader.ShowLoadingScreen = false;
          let file = new File([tile.content.gltfArrayBuffer], "tile.gltf")
          SceneLoader.Append("",file, scene, () => {console.log("success")},()=> console.log("progress"), (e,message,exeption) => console.log("error", e, message,exeption))

but the error message semms to be the same:

Unable to load from file:tile.gltf: importScene of undefined from undefined version: undefined, exporter version: undefinedimportScene has failed JSON parse RuntimeError: Unable to load from file:tile.gltf: importScene of undefined from undefined version: undefined, exporter version: undefinedimportScene has failed JSON parse

what can be the issue here?

Thanks a lot!!!

3

You have to pass something for the pluginExtension parameter of SceneLoader.Append, so that the method knows how to interpret the data. Pass “.babylon” if the data is encoded as a .babylon file or “.gltf” if it’s a .gltf file.

4

Thank you so much, i had to do this too:

import "@babylonjs/loaders/glTF";

Cheers and thanks!