Is NetMulticast Validation executed on server or client?

Development Programming & Scripting C++
1 

bool ...::Multi_..._Validate(...)
{
	AController* OwnerController = this->GetOwner()->GetInstigatorController();
	if (OwnerController->IsValidLowLevel() && OwnerController->IsLocalController())
	{
		return false;
	}

	return true;
}

void ...::Multi_..._Implementation(...)
{
	/* executes ... on clients */
	this->exec...(...);
}

I try to find a way to exclude the owning client from the multicast, is the validation executed on all clients, or only once serverside?

Thanks.

2

It can run on either, or both. It depends on the RPC. If the RPC is marked as:


UFUNCTION(Client, WithValidation)
void MyClientRPC();

It’ll require a Validation method on the client.

Client to Server always requires validation, so anything marked as a Server RPC will require a validation method.

I don’t think you can use validation to “filter” messages. If you fail the Validation call, the Client is normally disconnected immediately (because it’s assumed they’re a cheater/hacker/doing bad stuff).

For more reading on Validation:

3

Ohh, that’s really good to know, thank you!