GLTF Metadata in Sandbox

Questions
1

Is it possible to view the metadata (specifically the “extras” section) of a GLTF model within the Sandbox? I can’t seem to find where that would be and haven’t found an old forum post asking for this. Thanks

2

Hi.

You just need register extension for loader before load:
GLTFLoader.RegisterExtension("tagsExtension", function (loader) { return new TagsExtension(loader); });

and add tags as you need:

class TagsExtension implements IGLTFLoaderExtension{
	public name = "custom";
	public enabled = true;
	constructor(private loader:GLTFLoader){}
	public loadNodeAsync(context: string, node: INode, assign: (babylonMesh: TransformNode) => void) {
		return this.loader.loadNodeAsync(context, node, function (babylonMesh:any) {
			if (node.extras){
				for (let i in node.extras){
					babylonMesh.metadata.YOURTAG = node.extras;
				}
			}
			assign(babylonMesh);
		});
	}
	public dispose(): void {}
}

i was search anything solve and catch it on old forum. It work for me

3

aaah–I’ll have to edit from source. I should have been more clear–I was hopeful it was already
implemented within sandbox.babylonjs.com Looks like that isn’t the case. Thank you for the solution!

4

i don’t know about sanbox features, sorry. Perhaps it supported

5

This should be added to the Inspector cc @bghgary

6

Maybe we can add the ability to view the metadata in general to the inspector?

@Blax There is already a loader extension that adds extras to the metadata. There is no need to add another extension. :slight_smile:

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7

Hi @bghgary - I still wasn’t sure if this was the case? I am not seeing the metadata listed on the sandbox inspector.

exporter lists them as present -
image
GLB file confirms they are there
image

When I drag this into the babylon sandbox I can’t find them listed on any section of the inspector on the mesh mode. Unless i’ve misunderstood and it’s not a feature of the sandbox without adding an extension?

Many thanks in advance.

Pete

8

As a follow up to this, I’ve added the asset to a playground to illustrate the process from 3dsMax, was just wondering if the sandbox could do the same, that’s all!

image
image1086×358 33.8 KB

Was also curious if this is the correct way to access the metadata in javascript?

Playground Link - 3dsmax Metadata access

9

This hasn’t been implemented. I was saying that it might be good to add it as a feature. Feel free to file a feature request on GitHub. :wink:

1 Like
10

Thank you for the clarification @bghgary - it’s really not an issue since it’s fairly trivial to test with a simple playground setup.

1 Like