In CPython, try exporting glTF with the latest rhinocommon

Rhino Developer
, ,
1

I am tring to exporting glTF format in CPython with rhinoinside，but i encounter an issue: if i setting the property:Gltfoptions.ExportMaterials equal to False，it can be work.But if I need to export the material, the conversion will not be successful.There is no doubt that I need materials, can this problem be solved?
there is the code:

import rhinoinside
rhinoinside.load()

import Rhino


path = r"C:\Users\62687\Desktop\TestDoc\block.3dm"
doc = Rhino.RhinoDoc.OpenHeadless(path)

Rhino.RhinoDoc.ActiveDoc = doc
the_doc = Rhino.RhinoDoc.ActiveDoc

path_to = r"C:\Users\62687\Desktop\TestDoc\block.gltf"
Gltfoptions = Rhino.FileIO.FileGltfWriteOptions()

Gltfoptions.ExportMaterials = False # default value is True, export will fail

is_done = Rhino.FileIO.FileGltf.Write(path_to, the_doc, Gltfoptions)

print(is_done)

@dale

2

@Joshua_Kennedy - is this something you can help with?

3

The reason has been found: the material for glTF must be PBR, so the material needs to be converted to PBR material before exporting.

4

Thank you for your reply!!!

5

This shouldn’t fail. Custom materials are converted to PBR on the fly when exporting to glTF. When running Rhino normally this works as expected. For some reason I haven’t worked out yet it’s failing with Rhino.Inside. I logged a bug here.

6

It indeed seems to be a bug. I can export successfully when I leave the material color as default, but it fails again when I change the color.

7

For a PBR or Custom Material?

8

Custom Material