FWorldAsyncTraceState Struct Reference

#include <World.h>

Public Member Functions
UE_API	FWorldAsyncTraceState ()
AsyncTraceData &	GetBufferForFrame (int32 Frame)
AsyncTraceData &	GetBufferForCurrentFrame ()
AsyncTraceData &	GetBufferForPreviousFrame ()

Public Attributes
AsyncTraceData	DataBuffer [2]
int32	CurrentFrame

Detailed Description

This encapsulate World's async trace functionality. This contains two buffers of trace data buffer and alternates it for each tick.

You can use async trace using following APIs : AsyncLineTrace, AsyncSweep, AsyncOverlap When you use those APIs, it will be saved to AsyncTraceData FWorldAsyncTraceState contains two buffers to rotate each frame as you might need the result in the next frame However, if you do not get the result by next frame, the result will be discarded. Use Delegate if you would like to get the result right away when available.

Constructor & Destructor Documentation

FWorldAsyncTraceState()

FWorldAsyncTraceState::FWorldAsyncTraceState

(

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Member Function Documentation

GetBufferForCurrentFrame()

AsyncTraceData & FWorldAsyncTraceState::GetBufferForCurrentFrame ( )

inline

Get the Buffer for Current Frame

GetBufferForFrame()

AsyncTraceData & FWorldAsyncTraceState::GetBufferForFrame ( int32  Frame )

inline

Get the Buffer for input Frame

GetBufferForPreviousFrame()

AsyncTraceData & FWorldAsyncTraceState::GetBufferForPreviousFrame ( )

inline

Get the Buffer for Previous Frame

Member Data Documentation

CurrentFrame

int32 FWorldAsyncTraceState::CurrentFrame

Used as counter for Buffer swap for DataBuffer. Right now it's only 2, but it can change.

DataBuffer

AsyncTraceData FWorldAsyncTraceState::DataBuffer[2]

Async Trace Data Buffer Array. For now we only saves 2 frames.

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The documentation for this struct was generated from the following files:

• Engine/Source/Runtime/Engine/Classes/Engine/World.h
• Engine/Source/Runtime/Engine/Private/Collision/WorldCollisionAsync.cpp