Detect Faces of mesh

Questions
1

Hi All,

I am facing problem to get all the faces of mesh as I have tried updateFacetsData() method and I but I am getting null values.
So please help me to get faces of mesh.Thanks in advance.

2

Hello please provide a repro so we can help you further :wink:
Make the Best Use of the Forum | Babylon.js Documentation (babylonjs.com)

3

Please find the playground link given below:
https://playground.babylonjs.com/#BAHE7U#24
But u can’t saw the web page view as CORS issue is happening.But my problem statement is simple like if I am loading .glb files I am not able to get VerticesData.So please help me to resolve this issue.

4

You should follow this guide to make the playground work Using External Assets In the Playground | Babylon.js Documentation

It might be related to the model so having it running will help.

5

The fact you mentioned glb, i’m thinking you’re trying to call the function on the root node, not the mesh :slight_smile:

Your mesh or meshes contained in your glb, will be children of the root transformNode

1 Like
6

Thanks @sebavan.
Yes now I have correctify my playground link:
https://playground.babylonjs.com/#BAHE7U#26

So here I want to find the vertices of my ImportedMesh but I am getting null values.

7

you do not have a mesh named mesh0 in your scene so you won t find anything.

You should use “object1”

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8

But @sebavan if I am changing my mesh name to object1 then also I am getting null values:
https://playground.babylonjs.com/#BAHE7U#28

9

You are not passing the kind of data you want from getVerticesData ? you shoud definitely check the doc: Updating Vertices | Babylon.js Documentation

10

Sorry @sebavan but again no luck.Please have a look I am calculating the indices but here also I am getting null values :slight_smile:
https://playground.babylonjs.com/#BAHE7U#30

11

Now at least everything works https://playground.babylonjs.com/#BAHE7U#31 but the updateFacetData that fails on this file. @Cedric could you have a look ?

13

Sure! Let me take a look.

1 Like
14

@Cedric don’t know if this helps

Adding in forceSharedVertices and then using updateFacetData works

PG https://playground.babylonjs.com/#BAHE7U#32

2 Likes
15

PR is live Check Normals before computing Facets by CedricGuillemet · Pull Request #10569 · BabylonJS/Babylon.js · GitHub

3 Likes
16

You are the best !!!

2 Likes