pub type SCNSceneExportProgressHandler = *mut DynBlock<dyn Fn(c_float, *mut NSError, NonNull<Bool>)>;Available on crate features
SCNScene and block2 only.Expand description
Signature of a block that will be called repeatedly while the scene is being exported.
Parameter totalProgress: is a floating-point number between 0 and 1. 0 means the loading process has just started and 1 that it is complete.
Parameter error: Will contain information about the failure if any.
Parameter stop: Set *stop to YES if you want to abort the operation.
See also Apple’s documentation