vtkGLTFImporter Unable to start animation

Support
1

importer use UpdateTimeStep doesn’t work

    num_animations = importer.GetNumberOfAnimations()
    print(f"Number of animations: {num_animations}")

    if num_animations > 0:
        importer.EnableAnimation(0)
        anim_name = importer.GetAnimationName(0)
        print(f"Enabled animation: {anim_name}")

    def execute(self, iren:vtk.vtkRenderWindowInteractor, event_id:str):
        if event_id == 'TimerEvent':
            if self.current_time < self.anim_duration:
                self.importer.UpdateTimeStep(self.current_time)
                self.importer.Modified()
                iren.Render()
2

Im not sure what you are trying to achieve here.