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  3. FEvaluationVM

FEvaluationVM

Evaluation VM

API > API/Plugins > API/Plugins/AnimNext > API/Plugins/AnimNext/EvaluationVM

References

   
Module AnimNext
Header /Engine/Plugins/Experimental/AnimNext/Source/AnimNext/Public/EvaluationVM/EvaluationVM.h
Include #include "EvaluationVM/EvaluationVM.h"

Syntax

struct FEvaluationVM

Remarks

Evaluation VM

This struct holds the internal state when we execute and FEvaluationProgram. Our virtual machine is stack based, values are generally pushed and popped.

Constructors

  Type Name Description
Public function    
Public function   Allow move.
Public function  

FEvaluationVM ( EEvaluationFlags InEvaluationFlags,
const UE::AnimNext::FReferencePose& InReferencePose,
int32 InCurrentLOD
)

  

Functions

  Type Name Description
Public function Const EEvaluationFlags Returns the evaluation flags.
Public function Const bool

IsValid ()

 Returns true if we are fully initialized.
Public function Const FKeyframeState

MakeReferenceKeyframe ( bool bAdditiveKeyframe
)

 Returns a reference keyframe (bind pose or additive identity)
Public function Const FKeyframeState

MakeUninitializedKeyframe ( bool bAdditiveKeyframe
)

 Returns an uninitialized keyframe with memory pre-allocated.
Public function Const const ValueType *

PeekValue ( const FEvaluationVMStackName& StackName,
uint32 Offset
)

 Returns an immutable pointer to a value at some offset from the top of the evaluation stack An offset of 0 means the top of the stack Returns valid pointer if an entry exists, nullptr otherwise
Public function ValueType *

PeekValueMutable ( const FEvaluationVMStackName& StackName,
uint32 Offset
)

 Returns a mutable pointer to a value at some offset from the top of the evaluation stack An offset of 0 means the top of the stack Returns valid pointer if an entry exists, nullptr otherwise
Public function bool

PopValue ( const FEvaluationVMStackName& StackName,
ValueType& OutValue
)

 Pops the top value from the evaluation stack Returns true if the stack was not empty and a value is returned, false otherwise
Public function void

PushValue ( const FEvaluationVMStackName& StackName,
ValueType&& Value
)

 Pushes and moves the specified value on its evaluation stack.
Public function void

Shrink ()

 Trims internal containers to only use as much memory as required to avoid slack.

Operators

  Type Name Description
Public function FEvaluationVM &  

See Also

FEvaluationProgram

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