95 lines
3.8 KiB
Ucode
95 lines
3.8 KiB
Ucode
|
/**
|
||
|
|
* Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
|
||
|
|
* MaterialExpressionMaterialFunctionCall - an expression which allows a material to use a material function
|
||
|
|
*/
|
||
|
|
class MaterialExpressionMaterialFunctionCall extends MaterialExpression
|
||
|
|
native(Material)
|
||
|
|
hidecategories(object);
|
||
|
|
|
||
|
|
/** The function to call. */
|
||
|
|
var() MaterialFunction MaterialFunction;
|
||
|
|
|
||
|
|
/** Struct that stores information about a function input which is needed to maintain connections and implement the function call. */
|
||
|
|
struct native FunctionExpressionInput
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Reference to the FunctionInput in the material function.
|
||
|
|
* This is a reference to a private object so it can't be saved, and must be generated by UpdateFromFunctionResource or SetMaterialFunction.
|
||
|
|
*/
|
||
|
|
var transient MaterialExpressionFunctionInput ExpressionInput;
|
||
|
|
|
||
|
|
/** Id of the FunctionInput, used to link ExpressionInput. */
|
||
|
|
var guid ExpressionInputId;
|
||
|
|
|
||
|
|
/** Actual input struct which stores information about how this input is connected in the material. */
|
||
|
|
var ExpressionInput Input;
|
||
|
|
};
|
||
|
|
|
||
|
|
/** Array of all the function inputs that this function exposes. */
|
||
|
|
var array<FunctionExpressionInput> FunctionInputs;
|
||
|
|
|
||
|
|
/** Struct that stores information about a function output which is needed to maintain connections and implement the function call. */
|
||
|
|
struct native FunctionExpressionOutput
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* Reference to the FunctionOutput in the material function.
|
||
|
|
* This is a reference to a private object so it can't be saved, and must be generated by UpdateFromFunctionResource or SetMaterialFunction.
|
||
|
|
*/
|
||
|
|
var transient MaterialExpressionFunctionOutput ExpressionOutput;
|
||
|
|
|
||
|
|
/** Id of the FunctionOutput, used to link ExpressionOutput. */
|
||
|
|
var guid ExpressionOutputId;
|
||
|
|
|
||
|
|
/** Actual output struct which stores information about how this output is connected in the material. */
|
||
|
|
var ExpressionOutput Output;
|
||
|
|
};
|
||
|
|
|
||
|
|
/** Array of all the function outputs that this function exposes. */
|
||
|
|
var array<FunctionExpressionOutput> FunctionOutputs;
|
||
|
|
|
||
|
|
cpptext
|
||
|
|
{
|
||
|
|
// UObject interface
|
||
|
|
virtual void PreEditChange(UProperty* PropertyAboutToChange);
|
||
|
|
virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent);
|
||
|
|
|
||
|
|
// UMaterialExpression interface
|
||
|
|
virtual INT Compile(FMaterialCompiler* Compiler, INT OutputIndex);
|
||
|
|
virtual FString GetCaption() const;
|
||
|
|
void SwapReferenceTo( UMaterialExpression* OldExpression, UMaterialExpression* NewExpression );
|
||
|
|
virtual const TArray<FExpressionInput*> GetInputs();
|
||
|
|
virtual FExpressionInput* GetInput(INT InputIndex);
|
||
|
|
virtual FString GetInputName(INT InputIndex) const;
|
||
|
|
virtual UBOOL IsInputConnectionRequired(INT InputIndex) const;
|
||
|
|
virtual void GetConnectorToolTip(INT InputIndex, INT OutputIndex, TArray<FString>& OutToolTip);
|
||
|
|
virtual void GetExpressionToolTip(TArray<FString>& OutToolTip);
|
||
|
|
virtual UBOOL MatchesSearchQuery( const TCHAR* SearchQuery );
|
||
|
|
|
||
|
|
/** Sets a new material function, given an old function so that links can be passed over if the name matches. */
|
||
|
|
void SetMaterialFunction(UMaterialFunction* ThisFunctionResource, UMaterialFunction* OldFunctionResource, UMaterialFunction* NewResource);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Updates FunctionInputs and FunctionOutputs from the MaterialFunction.
|
||
|
|
* This must be called to keep the inputs and outputs up to date with the function being used.
|
||
|
|
*/
|
||
|
|
void UpdateFromFunctionResource();
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
/** Helper that fixes up expression links where possible. */
|
||
|
|
void FixupReferencingExpressions(
|
||
|
|
const TArray<FFunctionExpressionOutput>& NewOutputs,
|
||
|
|
const TArray<FFunctionExpressionOutput>& OriginalOutputs,
|
||
|
|
TArray<UMaterialExpression*>& Expressions,
|
||
|
|
TArray<FExpressionInput*>& MaterialInputs,
|
||
|
|
UBOOL bMatchByName);
|
||
|
|
};
|
||
|
|
|
||
|
|
defaultproperties
|
||
|
|
{
|
||
|
|
bShowOutputNameOnPin=true
|
||
|
|
bHidePreviewWindow=true
|
||
|
|
MenuCategories(0)="Functions"
|
||
|
|
BorderColor=(R=0,G=116,B=255)
|
||
|
|
}
|