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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials
Inheritance Hierarchy
- UObjectBase
- UObjectBaseUtility
- UObject
- UMaterialExpression
- UMaterialExpressionMaterialFunctionCall
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionMaterialFunctionCall.h |
| Include | #include "Materials/MaterialExpressionMaterialFunctionCall.h" |
Syntax
class UMaterialExpressionMaterialFunctionCall : public UMaterialExpression
Variables
| Type | Name | Description | |
|---|---|---|---|
 |
TArray< struct FFunctionExpressionInput > | FunctionInputs | Array of all the function inputs that this function exposes. |
 |
TArray< struct FFunctionExpressionOutput > | FunctionOutputs | Array of all the function outputs that this function exposes. |
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FMaterialParameterInfo | FunctionParameterInfo | Used by material parameters to split references to separate instances. |
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TObjectPtr< class UMaterialFunctionInterface > | MaterialFunction | The function to call. |
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
UMaterialExpressionMaterialFunctionCall
(
const FObjectInitializer& ObjectInitializer |
Functions
| Type | Name | Description | |
|---|---|---|---|
  |
void | GetDependentFunctions
(
TArray< UMaterialFunctionInterface* >& DependentFunctions |
|
  |
FName | GetInputNameWithType
(
int32 InputIndex, |
Util to get name of a particular type, optionally with type appended in parenthesis |
  |
bool | IterateDependentFunctions
(
TFunctionRef< bool(UMaterialFunctionInterface*)> Predicate |
|
 |
void | LinkFunctionIntoCaller
(
FMaterialCompiler* Compiler |
|
 |
bool | SetMaterialFunction
(
UMaterialFunctionInterface* NewMaterialFunction |
|
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bool | SetMaterialFunctionEx
(
UMaterialFunctionInterface* OldFunctionResource, |
Set a new material function, given an old function so that links can be passed over if the name matches. |
 |
void | SetSharedCompileState
(
FMaterialFunctionCompileState* SharedState |
Temporary compilation state shared between function calls |
 |
void | UnlinkFunctionFromCaller
(
FMaterialCompiler* Compiler |
|
 |
void | UpdateFromFunctionResource
(
bool bRecreateAndLinkNode |
Update FunctionInputs and FunctionOutputs from the MaterialFunction. |
Overridden from UMaterialExpression
| Type | Name | Description | |
|---|---|---|---|
  |
int32 | Compile
(
FMaterialCompiler* Compiler, |
Create the new shader code chunk needed for the Abs expression |
  |
void | GatherStrataMaterialInfo
(
FStrataMaterialInfo& StrataMaterialInfo, |
Recursively parse nodes outputing strata material in order to gather all the possible shading models used in a material graph output a Strata material. |
   |
bool | GenerateHLSLExpression
(
FMaterialHLSLGenerator& Generator, |
|
   |
void | GetCaption
(
TArray< FString >& OutCaptions |
Returns the text to display on the material expression (in the material editor). |
  |
void | GetConnectorToolTip
(
int32 InputIndex, |
Get a tooltip for the specified connector. |
   |
FString | Get a single line description of the material expression (used for lists) | |
  |
void | GetExpressionToolTip
(
TArray< FString >& OutToolTip |
Get a tooltip for the expression itself. |
  |
FExpressionInput * | GetInput
(
int32 InputIndex |
|
   |
FName | GetInputName
(
int32 InputIndex |
|
  |
TArrayView< FExpressionInput * > | Get the expression inputs supported by this expression (Note: property inputs NOT included). | |
  |
uint32 | GetInputType
(
int32 InputIndex |
|
   |
bool | IsInputConnectionRequired
(
int32 InputIndex |
|
  |
bool | IsResultMaterialAttributes
(
int32 OutputIndex |
Marks certain expression types as outputting material attributes. |
  |
bool | IsResultStrataMaterial
(
int32 OutputIndex |
Marks certain expression types as outputting Strata material. |
  |
bool | MatchesSearchQuery
(
const TCHAR* SearchQuery |
MatchesSearchQuery: Check this expression to see if it matches the search query |
  |
FStrataOperator * | StrataGenerateMaterialTopologyTree
(
FMaterialCompiler* Compiler, |
A starta material is a tree with FrontMateiral being its root and BSDF being leaves, with operators in the middle. |
Overridden from UObject
| Type | Name | Description | |
|---|---|---|---|
  |
void | PostEditChangeProperty
(
FPropertyChangedEvent& PropertyChangedEvent |
Called when a property on this object has been modified externally |
  |
void | PostLoad () |
Do any object-specific cleanup required immediately after loading an object. |
  |
void | PreEditChange
(
FProperty* PropertyAboutToChange |
This is called when a property is about to be modified externally |