1. Epic GamesDeveloper
  3. FHeuristicSettings

FHeuristicSettings

Represent an independent budget to dynamically scale by its own.

API > API/Runtime > API/Runtime/RenderCore

References

   
Module RenderCore
Header /Engine/Source/Runtime/RenderCore/Public/DynamicRenderScaling.h
Include #include "DynamicRenderScaling.h"

Syntax

struct FHeuristicSettings

Remarks

Represent an independent budget to dynamically scale by its own.

Variables

  Type Name Description
Public variable bool bModelScalesWithPrimaryScreenPercentage  
Public variable float BudgetMs  
Public variable float ChangeThreshold  
Public variable int32 FractionQuantization  
Public variable float IncreaseAmortizationFactor  
Public variable float MaxResolutionFraction  
Public variable float MinResolutionFraction  
Public variable EHeuristicModel Model  
Public variable float TargetedHeadRoom  
Public variable float ThrottlingMaxResolutionFraction  
Public variable int32 UpperBoundQuantization  

Functions

  Type Name Description
Public function Const float

CorrectNewResolutionFraction ( float CurrentResolutionFraction,
float NewResolutionFraction,
float ResolutionFractionScale
)

 Corrects new resolution fraction to ensure it's within bounds, honor AmortizationFactor and FractionQuantization.
Public function Const bool

DoesResolutionChangeEnough ( float CurrentResolutionFraction,
float NewResolutionFraction,
bool bCanChangeResolution
)

 Returns whether the ResolutionFraction is changing meaningfully enough.
Public function Const float

EstimateCostScale ( float ResolutionFraction
)

 Returns how much the GPU cost scales for a given ResolutionFraction.
Public function Const float

EstimateResolutionFactor ( float TargetMs,
float TimingMs
)

 Returns how much the ResolutionFraction should scale for a GPU timing to fit to target.
Public function Const float

EstimateTimeFactor ( float CurrentResolutionFraction,
float NewResolutionFraction
)

 Returns how much the GPU time should scale between two different resolution fraction.
Public function Const float

GetTargetedMs ( float BudgetMs
)

 Returns the desired GPU cost to be targeted to have head room left to not go over budget.
Public function Const bool Returns whether the heuristic is enabled or not.

Constants

Name Description
kBudgetMsDisabled  
kDefaultChangeThreshold  
kDefaultFractionQuantization  
kDefaultIncreaseAmortizationFactor  
kDefaultMaxResolutionFraction  
kDefaultMinResolutionFraction  
kDefaultTargetedHeadRoom  
kDefaultThrottlingMaxResolutionFraction  
kDefaultUpperBoundQuantization  

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