func (model *Model) Unpack(res *resource.Container) error {
res.Parse(&model.Header)
geomCollection := &model.Header.GeometryCollection
model.Geometry = make([]*Geometry, geomCollection.Count)
for i := range model.Geometry {
model.Geometry[i] = new(Geometry)
}
err := geomCollection.For(res, func(i int) error {
geometry := model.Geometry[i]
if err := geometry.Unpack(res); err != nil {
return err
}
if model.Header.ShaderMappings.Valid() {
if err := res.PeekElem(model.Header.ShaderMappings, i, &geometry.Shader); err != nil {
return err
}
} else {
geometry.Shader = ShaderNone
}
return nil
})
if err != nil {
return err
}
return nil
}