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I already did. Here is the link th-cam.com/video/5NGTvlIPrQs/w-d-xo.html

@@pranjalbhattacharjee5601 o awesome :)

I moved 90% of these functions JUST to the BlueprintThreadSafeUpdateAnimation override function on the AnimBP which reduced the AnimGameThreadTime function time by more than 1/2, moving the remaining functions let alone moving it to C++ would probably git a 90+% increase. With only 1 Character using Motion Matching the improvement is negligible but when you start using it for AI or say PVP/Co-Op it lets you potentially get an easy 2 to 3 times more Characters then the OOTB setup (depending on what ultimately your Bottleneck is).

Yes it would let us have more active characters on screen.

yes I will release it on my patreon page (hopefully)

You're welcome!

@@gstreetgames2530 I like using my own stuff atleast when it comes to code.....that way I know the ins and outs of the system and don't have to spend time learning the system.....I don't like how als uses the tick function on the player so even if I used that project I would have to go in and modify the player class anyway and replication isn't a priority right now but I might add replication later

@@pranjalbhattacharjee5601 ah, shame. Good open source projects always need creative help, but nobody working on animation these days seems to like replication. Truth be told, I don't blame any of ya. It's an added difficulty layer that is rarely appreciated by the end users anyway. I think you may have what I asked about confused with classic ALS though, that abuses tick way too much for sure.

@@gstreetgames2530 Replicating traversal would be the difficult part for this project

I did override the NativeThreadsafeUpdate function later in the video. We do need the proxy I will show you in the next video

@@todddurholt2666 It's a TMap. It uses the EGaits enum as the key and the FGaitSettings as the value

so yes I got the TMap but where is the FGaitSettings for the value? just found it thank you so much

In this series I will rewrite a thread safe version of the entire anim bp from game animation sample. Hope people find it useful

@@pranjalbhattacharjee5601 Yeah I had only got through moving everything to use Property Access enabling thread-safe on the functions I could along with moving the main 3 functions into the BP Threadsafe function and I was able to quickly reduce AnimGameThread to 85 micro seconds down from like 200+ with another easy 25+ gain potential after I changed the logic which needs to read a curve or check if a slot is in use which appears to not be threadsafe / run on foreground thread.

Were you able to make all three functions thread safe ??......I thought the selected pose search data base variable in blueprints was a non thread safe variable and so you shouldn't have been able to get the current database tags 😕

@@pranjalbhattacharjee5601 Hmm what happened to my other comment, anyways I didn't have any issues using Property Access to read Current Selected Database.Tags but I did need to bypass "Handle Trajectory World Collision" for now because its not marked as BP Threadsafe no.

@@shannenmr Ok 🤔

@@hesamsadat4288 The plan is to first recreate (mostly) the sample project and then I can look into replication. I also want to do the layering system devops is doing.

@@burakucpnar4965 which unreal engine version are you using ?

@@pranjalbhattacharjee5601 UE 5.0

@@pranjalbhattacharjee5601 I'm using 5.0.3 version and tried to open it in 5.1 but did not open again.

@@burakucpnar4965 Ok I will update it to the latest version but it will take a little time I am working on the motion matching tutorial

@@pranjalbhattacharjee5601 Thanks a lot for your help by the way it opened in 5.0 version after a few try somehow

@@unrealdevop You are doing a great job with your motion matching project thanks for releasing it

@@pranjalbhattacharjee5601 Yeah no problem. Just trying to help people understand the Layering Technique.

Yes.....I was trying to figure out if it makes any difference and like you said I think the difference would be noticeable

@@pranjalbhattacharjee5601 Also that's with zero other game code running in your example, would be interesting to see the Unreal Insights capture for what specifically was still being processed on the game thread for the AnimBP.

It probably wasn't zero game code because the virtual input actor is running some blueprint and the player is also running some blueprint (inputs) on the game thread.....but yeah insight would paint a clearer picture.

Yes I will do some performance tests and see if making it thread safe actually makes a difference. I have also noticed choosers to be heavy on performance.....I could be wrong and I definitely haven't gone through the source code but it feels like a nested "if else" block to me

@@pranjalbhattacharjee5601 I just don't believe Fortnite uses this per the sample, I feel like Fortnite has some custom fully threaded setup and this is some initial productisation that's been handed off

@@shannenmr Maybe more changes to this system are coming and choosers are thread safe as far as I can tell because only thread safe functions are available for binding

Yes I will post tutorials on this. Sorry for not uploading more often

I already have a tutorial for that on my channel but ok I will make an updated one. It might take a week or so

github.com/JanakPRB/AITutorial5.0.git

@@pranjalbhattacharjee5601 Do you have the source files of the UE4.27 version?

@@EdGameplayer Unfortunately I don't have it anymore

It will....follow all the steps. You might have missed something....make sure you have added the HeadSocket to the mesh aswell

​@@pranjalbhattacharjee5601 I take back, its working now. Show you my nana.

I am not sure I understand what you are saying but for the "can be seen from" function to work, all he characters need to inherit from the same base class

Yes that can be done.....

Here is the github link for the completed project unfortunately I no longer have the starter project github.com/JanakPRB/AITutorial5.0.git

Alright thanks

Just like there is a default player controller that possesses the player even if we don't create one......but if we need custom logic then we need to create a player controller of our own.....this blackboard component is our custom one.....and the brain component is not the behaviour tree component

@@pranjalbhattacharjee5601 I suppose I'll see with the next tutorials, but the AAIController::RunBehaviorTree function still creates a UBehaviorTreeComponent and assigns it to the BrainComponent.

@@CloporteIsBack Ok I will check it out.... thanks for the information

Thank you this means a lot to me.....

Sorry I don't have the 4.27 project anymore.....the difference between the versions is just the "can be seen from function"..... everything else is the same

There are plans but I am busy with client projects.....I will upload more videos on this channel soon.....sorry for the delays

Yes.....create the c++ character and set it as the parent class for the blueprint character

That sounds great..... good job

@@pranjalbhattacharjee5601 I really have to thank you again. Your series helped me to really get into UE AI from a C++ perspective

@@dominikwerner6608 Happy to help 😊

I figured it out just didn't get the time to update the video....there is a set team id function in the interface

Let me know if you need the updated code for ue5

@pranjalbhattacharjee5601 I'm good. I have it updated and running with no issues. It might break once I try to hook it up to a behavior tree.

@@MrVladiebaddie It should also work correctly with behavior trees.

Use this for ue5.1 // Custom View Target For AIPerception Component bool ACharacterBase::CanBeSeenFrom(const FVector& ObserverLocation, FVector& OutSeenLocation, int32& NumberOfLoSChecksPerformed, float& OutSightStrength, const AActor* IgnoreActor, const bool* bWasVisible, int32* UserData) const { static const FName NAME_AILineOfSight = FName(TEXT("TestPawnLineOfSight")); FHitResult HitResult; FVector SocketLocation = GetMesh()->GetSocketLocation(PerceptionTarget); const bool bHitSocket = GetWorld()->LineTraceSingleByObjectType(HitResult, ObserverLocation, SocketLocation, FCollisionObjectQueryParams(ECC_TO_BITFIELD (ECC_WorldStatic) | ECC_TO_BITFIELD(ECC_WorldDynamic)), FCollisionQueryParams(NAME_AILineOfSight, true, IgnoreActor)); NumberOfLoSChecksPerformed++; if (bHitSocket == false || (HitResult.GetActor() && HitResult.GetActor()->IsOwnedBy(this))) { OutSeenLocation = SocketLocation; OutSightStrength = 1; return true; } const bool bHit = GetWorld()->LineTraceSingleByObjectType(HitResult, ObserverLocation, GetActorLocation(), FCollisionObjectQueryParams(ECC_TO_BITFIELD(ECC_WorldStatic) | ECC_TO_BITFIELD(ECC_WorldDynamic)), FCollisionQueryParams (NAME_AILineOfSight, true, IgnoreActor)); NumberOfLoSChecksPerformed++; if (bHit == false || (HitResult.GetActor() && HitResult.GetActor()->IsOwnedBy(this))) { OutSeenLocation = GetActorLocation(); OutSightStrength = 1; return true; } OutSightStrength = 0; return false; }

@@pranjalbhattacharjee5601 I'm using 4.27. My AIControllerBase is running BeginPlay but isn't running OnPossess Event, for some reason.

Ok, I've found the bug and it's working. Thank you!

@@DavidRicardo97 do you have a blueprint version of the on possess event....??....if so call the parent function first before the blueprint logic

Use this for ue5.1 // Custom View Target For AIPerception Component bool ACharacterBase::CanBeSeenFrom(const FVector& ObserverLocation, FVector& OutSeenLocation, int32& NumberOfLoSChecksPerformed, float& OutSightStrength, const AActor* IgnoreActor, const bool* bWasVisible, int32* UserData) const { static const FName NAME_AILineOfSight = FName(TEXT("TestPawnLineOfSight")); FHitResult HitResult; FVector SocketLocation = GetMesh()->GetSocketLocation(PerceptionTarget); const bool bHitSocket = GetWorld()->LineTraceSingleByObjectType(HitResult, ObserverLocation, SocketLocation, FCollisionObjectQueryParams(ECC_TO_BITFIELD (ECC_WorldStatic) | ECC_TO_BITFIELD(ECC_WorldDynamic)), FCollisionQueryParams(NAME_AILineOfSight, true, IgnoreActor)); NumberOfLoSChecksPerformed++; if (bHitSocket == false || (HitResult.GetActor() && HitResult.GetActor()->IsOwnedBy(this))) { OutSeenLocation = SocketLocation; OutSightStrength = 1; return true; } const bool bHit = GetWorld()->LineTraceSingleByObjectType(HitResult, ObserverLocation, GetActorLocation(), FCollisionObjectQueryParams(ECC_TO_BITFIELD(ECC_WorldStatic) | ECC_TO_BITFIELD(ECC_WorldDynamic)), FCollisionQueryParams (NAME_AILineOfSight, true, IgnoreActor)); NumberOfLoSChecksPerformed++; if (bHit == false || (HitResult.GetActor() && HitResult.GetActor()->IsOwnedBy(this))) { OutSeenLocation = GetActorLocation(); OutSightStrength = 1; return true; } OutSightStrength = 0; return false; }

Well it's just a nav filter

@@pranjalbhattacharjee5601 Sorry I meant cover not flanking in when I was saying "AI knows flanking"

@@ShadowClaw_Dev There is no algorithm nothing behind this version of flanking you see in the video.....you could do influence mapping or things like that.....but I am just using a nav filter attached to the target bot and using it to define a "threat vector" so that the bots know to avoid spaces inside the threat vector for navigation queries

@@pranjalbhattacharjee5601 Oh thanks for helping me understand.

@@ShadowClaw_Dev Happy to help 😊

Well.....it can be done that way maybe but it's not going to be good for performance.....you are supposed to do it in c++

I am tired of seeing everything in blueprint its fresh environment to see c++ used in here tbh if u want to make and perform good u must need to learn c++

@@farhantanvir8077 Blueprint only becomes an issue when it is a performance bottleneck. in the vast majority of games using blueprint, the game thread will not be the bottleneck but rather the graphics so there is no need to try to gain performance using c++ because the only way to speed the game up is by addressing the graphics bottleneck. unless you prefer to work in c++ because you like it better (as far as workability I think blueprint has many advantages over c++). we have an entire networked multiplayer shooter as sophisticated as counterstrike or call of duty done entirely in blueprint. The only place I plan on converting some functions to c++ is in the AI logic in services that run multiple times a second. In performance testing on a variety of machines the bottleneck for us is not the game thread it's the graphics thread by a pretty large margin. So the only way to speed up the game is to further optimize graphics. Our graphics are low poly with very simple materials so for a game with sophisticated expensive graphics blueprint would be even less of a bottleneck. For 99% of the code in most games blueprint works great.

A blackboard is just a list of variables and you can only have one blackboard active at any given time for a given behavior tree.......you can have multiple blackboards but it serves no purpose other than making things messy

@@pranjalbhattacharjee5601 so if I want to have dynamic modular subtrees I have to make sure that all other main behaviour trees that consume it share the same blackboard?

@@desendev4176 Well.....you don't have to but yes it would be simpler if they all used the same blackboard

I may be wrong, but I find both formulae to be more or less the same but, if possible, do some performance testing and let me know.......and more tutorials are coming but it will take some time because I am currently very busy with client projects,

@@pranjalbhattacharjee5601 It is my assumption that it doesn't matter too much (I worked a lot on optimizations hence why I jump on things like this ^^). Don't feel pressured to create new tutorials, after all this is free content ☺