COLLADA to glTF converter removes parts of model

CesiumJS
1

Hello,

I have a collada model of turbine which I tried to export to glTF format. Two from 3 wings disappeared. What could be the problem? Is it a converter bug? I checked it with two different turbine files.

Daria

turbine.dae (301 KB)

turbine.glb (229 KB)

dae.PNG
dae.PNG654×609 44.1 KB

gltf.PNG
gltf.PNG514×505 20.4 KB

windmill.glb (279 KB)

windmill.dae (584 KB)

2

Hi Daria,

The cause is often a bad COLLADA file. Have you tried the tips in the Troubleshooting section of the 3D Models tutorial? Let us know if that doesn’t help.

Thanks,

Patrick

3

I’ve often has this problem. It seems to be with model components that are grouped.

Usually I can fix the problem by importing the model into Sketchup, exploding the grouped entities, and re-saving as a Collada file.

I have no technical explanation for why this works. Maybe a smarter graphics modeling person could weigh in?

  • M