ModelNode is simply a ScenegraphNode that contains a Model for drawing.
ModelNode(webglContextOrModel, props: Object)
Model will be created internally, otherwise the passed Model will be used.props is the same props as Model, plus props.managedResources, an array of resources that this model owns.ModelNode wraps the following Model method and simply proxies them to its internal Model:
drawsetUniformssetAttributesupdateModuleSettingsdelete (calls Model.delete and also deletes managed resource)