GLTF Loader not setting BoundingInfo

[NinjaMark]

Hi,

I'm having an issue getting the method getBoundingInfo() working with the GLTF Loader plugin. Using other formats this data would be automatically set when using ImportMesh, for instance with the skull.babylon example:

1.	BoundingInfo
1.	_isLocked:false
2.	boundingBox:BoundingBox
3.	boundingSphere:BoundingSphere
4.	isLocked:false
5.	maximum:Vector3
1.	x:23.7722
2.	y:30.4701
3.	z:29.0242
6.	minimum:Vector3
1.	x:-23.7722
2.	y:-30.4938
3.	z:-29.0169

Using the same code but replacing skull.babylon with duck.gltf :

1.	BoundingInfo
1.	_isLocked:false
2.	boundingBox:BoundingBox
3.	boundingSphere:BoundingSphere
4.	isLocked:(...)
5.	maximum:Vector3
1.	x:0
2.	y:0
3.	z:0
6.	minimum:Vector3
1.	x:0
2.	y:0
3.	z:0

All values get set to 0, including those on boundingBox and boundingSphere. I'm seeing the same result with other GLTF models I've tried.

Is this a bug in the GLTF loader, or is there something else I need to do to set the bounding info for these meshes?

[GameMonetize]

Hello you can generate it manually by calling mesh.computeWorldMatrix(true);

Ping @Luaacro FYI

[julien-moreau]

Areyou doing it in the callback of the SceneLoader ? if yes, the loading process is incremental for the gltf loader so meshes are created but not their geometries

Do you confirm that you are doing it in the callback ?

[NinjaMark]

computeWorldMatrix doesn't seem to have an effect here.

This is a full code sample loading each type of mesh and logging the BoundingInfo;

    <script>
        if (BABYLON.Engine.isSupported()) {

            var canvas = document.getElementById("canvas");
            var engine = new BABYLON.Engine(canvas, true);

            var createScene = function () {
                var scene = new BABYLON.Scene(engine);

                //Adding a light
                var light = new BABYLON.PointLight("Omni", new BABYLON.Vector3(20, 20, 100), scene);

                //Adding an Arc Rotate Camera
                var camera = new BABYLON.ArcRotateCamera("Camera", 0, 0.8, 100, BABYLON.Vector3.Zero(), scene);
                camera.attachControl(canvas, false);

                BABYLON.SceneLoader.ImportMesh("", "", "skull.babylon", scene, function (newMeshes) {
                    console.log("Import .babylon mesh " + newMeshes[0].name);
                    console.log(newMeshes[0].getBoundingInfo()); // Returns correct BoundingInfo
                });
                

                BABYLON.SceneLoader.ImportMesh("", "", "duck.gltf", scene, function (newMeshes) {
                    console.log("Import GLTF mesh " + newMeshes[0].name);

                    newMeshes[0].computeWorldMatrix(true);

                    console.log(newMeshes[0].getBoundingInfo()); // Returns empty BoundingInfo
                });

                return scene;
            }

            createScene();
        }

 

[GameMonetize]

@Luaacro is working on it

[julien-moreau]

Hi @NinjaPigeon

The pull request is available here : https://github.com/BabylonJS/Babylon.js/pull/1666

You can just set BABYLON.GLTFFileLoader.IncrementalLoading = false; in your code. Then you'll be able to retrieve the bounding infos and all other datas

[NinjaMark]

Thanks @Luaacro, can confirm that the BoundingInfo is being set after the update and setting IncrementalLoading = false