How to change apply videotexture to material of imported file?

Questions
1

Hi, after importing some glb files from blender, I need to change material of “tv” with a video texture. Mateiral name is tv_mat. Tried this:

var myMaterial2 = scene.getMaterialByName("tv_mat");
var videoTexture = new BABYLON.VideoTexture("video", ["oppo.mp4","oppo.webm"], scene, true, true);
myMaterial2.diffuseTexture =  videoTexture;

However I get a log stating: TypeError: myMaterial2 is null

Ho do I properly change material?

2

That means you don’t have a material with name “tv_mat” in your scene. You must first correct that. You can try getMaterialByID() in case it is the id of the material that is “tv_mat”.

3

Unfortunately I got same result. In babylon sandbox (https://sandbox.babylonjs.com/) I can definitely see a material with “tv_mat” name, so maybe model hasn’t yet finished loading? Is of, what function do I check for “is loaded”?

4

I think a PG will be easier to deal with, if you can (https://playground.babylonjs.com).

5

Here it is: https://www.babylonjs-playground.com/#T7T1PU#1

6

You must wait for the scene to be loaded before being able to access objects from this scene.

The easiest way is to put your code in the callback:

https://www.babylonjs-playground.com/#T7T1PU#3

Also, note that materials loaded from a gtlf / glb file are PBR materials, not standard materials, so you should use albedoColor and not diffuseColor.

7

Thank you very much, will fix some uvs in my model and should be good to go.