谁用过GetHitProxy(int32 X,int32 Y)

我想用编辑器点击物体的方式做鼠标点击，查了下引擎里是调了HHitProxy* FViewport::GetHitProxy(int32 X,int32 Y)这个函数，但我直接用好像不对

AActor* UVictoryBPFunctionLibrary::GetViewportHit(const APlayerController * ThePC,int X, int Y)

{




        if (!ThePC) return nullptr;

        FViewport * VictoryViewport = ThePC->GetWorld()->GetGameViewport()->Viewport;

        if (!VictoryViewport) return nullptr;

        VictoryViewport->InvalidateHitProxy();

        HHitProxy* HitProxy = VictoryViewport->GetHitProxy(X, Y);

        HActor* ActorHitProxy = (HActor*)HitProxy;

        if (!ActorHitProxy) return nullptr;

        AActor* ConsideredActor = ActorHitProxy->Actor;

        return ConsideredActor;

}

函数在这，返回很奇葩 蓝图里打印一直是“Brush1”，而不是空的

http://www.acros.me/c/unreal-engine-4-编辑器的光标拾取（cursor-query）功能小记/

mknmknmk 发表于 2018-11-7 21:10
http://www.acros.me/c/unreal-engine-4-编辑器的光标拾取（cursor-query）功能小记/

大佬给力！

https://zhuanlan.zhihu.com/p/24333182

mknmknmk 发表于 2018-11-8 15:56
https://zhuanlan.zhihu.com/p/24333182

两篇都看了，但还没解决，里边讲了hitproxy的原理和设置，我的问题是获取不对，按理说视口里所有actor应该默认都支持hitproxy才对吧，hitproxy了解也不多，求解答

https://forums.unrealengine.com/development-discussion/c-gameplay-programming/37946-how-to-select-an-actor-in-game-using-gethitproxy