Hey, What’s the best way to use the cameras frustum to check the visibility of a set of actors? Or points etc? Been looking around but not finding anything that useful. Thanks

You can do it like this: bool IsInFrustum( AActor* Actor) { ULocalPlayer* LocalPlayer = GetWorld()->GetFirstLocalPlayerFromController(); if (LocalPlayer != nullptr && LocalPlayer->ViewportClient != nullptr && LocalPlayer->ViewportClient->Viewport) { FSceneViewFamilyContext ViewFamily(FSceneVie…

Sorry for being so obvious, but you might try tracing from each actor position to your POV (camera position), then checking if the trace was unsuccessful (nothing occludes the visibility) and it lays within the frustum cone. This is an ugly hack, I might guess, but I am not familiar with Unreal’s gr…

Thanks for the info, the trace approach is an option, but all I really care about is whether or not the actors bounds are inside, intersecting or outside of the six planes of the frustum, so even if there is something in the way I’d like to know the result of that check. You’d need to do at least t…

Haven’t tried it yet, but I am guessing these functions are what I want: [image] GetViewFrustumBounds Creates a convex volume bounding the view frustum for a view-projection matrix. [image] GetViewFrustumBounds Creates a convex volume bounding th…

Have a look at “WasRecentlyRendered” … it may help. [WTF Is? Was Recently Rendered in Unreal Engine 4 ( UE4 )]

I’d love to see a Blueprint solution of the code above if anyone is up to it…

What setup/includes are needed for this to work? VS flags LocalPlayer as an incomplete class type (which I think is due to a missing include), among other errors

Perform Frustum Check

Development Cinematics & Media

Maddius (Maddius) July 9, 2014, 9:05am 2

Shameless bump!