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  3. FTree

FTree

The HLSL AST. Basically a wrapper around the root scope, with some helper methods

API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/HLSLTree

References

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

Syntax

class FTree

Remarks

The HLSL AST. Basically a wrapper around the root scope, with some helper methods

Variables

  Type Name Description
Public variable FActiveStructFieldStack ActiveStructFieldStack  

Functions

  Type Name Description
Public function const FExpression *

AcquireLocal ( FScope& Scope,
const FName& LocalName
)

  
Public function void

AssignLocal ( FScope& Scope,
const FName& LocalName,
const FExpression* Value
)

  
Public function Static FTree *

Create ( FMemStackBase& Allocator
)

  
Public function Static void

Destroy ( FTree* Tree
)

  
Public function Const bool

EmitShader ( FEmitContext& Context,
FStringBuilderBase& OutCode
)

  
Public function bool  
Public function FMemStackBase &  
Public function FExpressionDerivatives

GetAnalyticDerivatives ( const FExpression* InExpression
)

  
Public function Const UObject *  
Public function const FExpression *

GetPreview ( const FExpression* InExpression
)

  
Public function const FExpression *

GetPreviousFrame ( const FExpression* InExpression,
const FRequestedType& RequestedType
)

  
Public function Const FScope &  
Public function const FExpression *

NewAbs ( const FExpression* Input
)

  
Public function const FExpression *

NewAdd ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewAppend ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewAppend ( const FExpression* Lhs,
ArgTypes&&... Rhs
)

  
Public function const FExpression *

NewBinaryOp ( EOperation Op,
const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewConstant ( const Shader::FValue& Value
)

 Shortcuts to create various common expression types
Public function const FExpression *

NewCos ( const FExpression* Input
)

  
Public function const FExpression *

NewCross ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewDiv ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewDot ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewExp ( const FExpression* Input
)

  
Public function const FExpression *

NewExp2 ( const FExpression* Input
)

  
Public function const FExpression *

NewExpression ( ArgTypes&&... Args
)

 Creates a new FExpression-derived type by passing the given arguments to the constructor Given arguments are hashed, and may result in returning an existing expression if the hash matches
Public function const FExpression *

NewFmod ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewFrac ( const FExpression* Input
)

  
Public function FFunction *  
Public function const FExpression *

NewFunctionCall ( FScope& Scope,
FFunction* Function,
int32 OutputIndex
)

  
Public function const FExpression *

NewGreater ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewGreaterEqual ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewLength ( const FExpression* Input
)

  
Public function const FExpression *

NewLerp ( const FExpression* A,
const FExpression* B,
const FExpression* T
)

  
Public function const FExpression *

NewLess ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewLessEqual ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewLog ( const FExpression* Input
)

  
Public function const FExpression *

NewLog2 ( const FExpression* Input
)

  
Public function const FExpression *

NewMax ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewMin ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewModulo ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewMul ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewNeg ( const FExpression* Input
)

  
Public function const FExpression *

NewNormalize ( const FExpression* Input
)

  
Public function FScope *  
Public function const FExpression *

NewPow2 ( const FExpression* Input
)

  
Public function const FExpression *

NewPowClamped ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewRcp ( const FExpression* Input
)

  
Public function const FExpression *

NewRsqrt ( const FExpression* Input
)

  
Public function const FExpression *

NewSaturate ( const FExpression* Input
)

  
Public function FScope *

NewScope ( FScope& Scope
)

  
Public function const FExpression *

NewSin ( const FExpression* Input
)

  
Public function const FExpression *

NewSmoothStep ( const FExpression* Input0,
const FExpression* Input1,
const FExpression* Input2
)

  
Public function const FExpression *

NewSqrt ( const FExpression* Input
)

  
Public function T *

NewStatement ( FScope& Scope,
ArgTypes&&... Args
)

  
Public function const FExpression *

NewStep ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewSub ( const FExpression* Lhs,
const FExpression* Rhs
)

  
Public function const FExpression *

NewSum ( const FExpression* Input
)

  
Public function const FExpression *

NewSwizzle ( const FSwizzleParameters& Params,
const FExpression* Input
)

  
Public function const FExpression *

NewTernaryOp ( EOperation Op,
const FExpression* Input0,
const FExpression* Input1,
const FExpression* Input2
)

  
Public function const FExpression *

NewTruncateLWC ( const FExpression* Input
)

  
Public function const FExpression *

NewUnaryOp ( EOperation Op,
const FExpression* Input
)

  
Public function UObject *  
Public function void

PushOwner ( UObject* Owner
)

  

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