Looking to merge to examples

Questions
#1

I want merge these two examples:
https://threejs.org/examples/?q=perfor#webgl_instancing_performance
https://threejs.org/examples/?q=glt#webgl_loader_gltf

I have gotten some of the way (ref: https://amfibios.dk/three.js/r115/build/LoadMill3.htm), but now this is the err msg in console:

GLTFLoader.js:121 TypeError: geometry.addEventListener is not a function
    at Object.get (three.module.js:16088)
    at Object.update (three.module.js:16530)
    at projectObject (three.module.js:24647)
    at projectObject (three.module.js:24683)
    at WebGLRenderer.render (three.module.js:24471)
    at render (LoadMill3.htm:223)
    at LoadMill3.htm:107
    at GLTFLoader.js:147
    at GLTFLoader.js:1522

Main goal is to output ‘GPU memory’ only (GPU Draw calls is not relevant, as I only load one model).

#2

I’m afraid the way you create an instance of InstancedMesh is not correct. You can’t just pass the result object of GLTFLoader.load() to its constructor. I’m referring to the following line:

var mesh = new THREE.InstancedMesh( gltf, material );

You should try instead to traverse through gltf.scene, detect all meshes and replace them with InstancedMesh. The traverse can be done by using Object3D.traverse().

I also suggest you have a look at the documentation of GLTFLoader in order to understand the gltf result object.

#3

Yes, I was looking further into it myself … the instanced monkeyhead is a .json-structure as well //but thx