Why i can't export to OBJ my mesh created uses ribbons?

[3D for mortals]

My scene meshes partially created uses ribbons. Orange meshes on picture.

All meshes displayed good on screen , but when i try to export scene meshes to OBJ file, then ribbons created meshes not export to result file, without errors.

Just nothing, except usual created meshes(black/gray on picture) in result OBJ file , after importing uses freecad/meshlab. And file size is tiny (looks like ribbons just not added to export flow).

while i try export only ribbons , in import time i see error "no vertex field found"

and file include only elements heading

 

exported_wheel(4).obj

[Guest]

Hello, can you try to create a ribbon the same way you do but in the PG and then call the Obj exporter?

Or just create an issue on the repo

Pinging @kcoley

[kcoley]

Hi @3D for mortals ! I’ll look into the ribbon export issue. If you happen to have a sample playground, that would be useful as well. 

[3D for mortals]

2 hours ago, kcoley said:

Hi @3D for mortals ! I’ll look into the ribbon export issue. If you happen to have a sample playground, that would be useful as well. 

this is good example in playground but i don't know how add babylonjs.serializers.js to playground

https://www.babylonjs-playground.com/#1QD8LM#5

to make it work just comment/uncomment strings 139,140,141. And message me after you add serializers, that i know how it do too.

 

[3D for mortals]

3 hours ago, Deltakosh said:

Hello, can you try to create a ribbon the same way you do but in the PG and then call the Obj exporter?

Or just create an issue on the repo

Pinging @kcoley

need assist with addition of babylonjs.serializers.js ... i don't know how include it to playground

https://www.babylonjs-playground.com/#1QD8LM#5

[kcoley]

@3D for mortals, thanks for sending over the playground.  serializer.js should already be included, so I tweaked your playground to get it to work:

http://playground.babylonjs.com/#N6FPZL

I just changed this line:

var text = BABYLON.OBJExport.OBJ([meshExp]);

This definitely demonstrates the issue.  I'll look into this to see if I can figure out what's broken.

[3D for mortals]

3 hours ago, Deltakosh said:

Hello, can you try to create a ribbon the same way you do but in the PG and then call the Obj exporter?

Or just create an issue on the repo

Pinging @kcoley

https://www.babylonjs-playground.com/#2Y4H0L

playground with issue , which export ribbon mesh to empty headers without data. Just for case

[Guest]

will be fixed with next nightly

thanks @kcoley

[3D for mortals]

18 minutes ago, Deltakosh said:

will be fixed with next nightly

thanks @kcoley

 

4 hours ago, kcoley said:

@3D for mortals, thanks for sending over the playground.  serializer.js should already be included, so I tweaked your playground to get it to work:

http://playground.babylonjs.com/#N6FPZL

I just changed this line:

var text = BABYLON.OBJExport.OBJ([meshExp]);

This definitely demonstrates the issue.  I'll look into this to see if I can figure out what's broken.

looks is my bad.  I use playground handmaded function , which create another member. It is work but only for displaying mesh on screen. Now after few hours thinking , i search babylonjs docs and found standard syntax for create ribbons

BABYLON.MeshBuilder.CreateRibbon("id_mesh_name", { pathArray: array_of_getPoints_from_BABYLON_bezier}, scene )

and this syntax work done and can be exported to OBJ