Thin Instance Scaling Example?

Questions
1

Can someone point me to a thin instance scaling example using thinInstanceSetMatrixAt?

2

I did a quick search and found this one : Thin instances simple example | Babylon.js Playground

3

I need the instances to scale (grow / shrink).

4

You have to use compose method:

const scale = new BABYLON.Vector3(2, 2, 2);
const rot = new BABYLON.Quaternion.RotationYawPitchRoll(Math.PI/3, 0, 0);
const trans = new BABYLON.Vector3(-1, 2, 0);
var newMat = BABYLON.Matrix.Compose(scale, rot, trans);
sphere.thinInstanceSetMatrixAt(idx, newMat);

for some reason it is working in 4.2 and not in 5.0 at PG
https://playground.babylonjs.com/#217750#38
just saw a PR by @Evgeni_Popov in the topic , it maybe identical

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5

Thanks Dshah!

6

Yes, the PR will fix the problem in 5.0.

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