Navigation
API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/Materials
Inheritance Hierarchy
- UObjectBase
- UObjectBaseUtility
- UObject
- UMaterialExpression
- UMaterialExpressionPreviousFrameSwitch
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionPreviousFrameSwitch.h |
| Include | #include "Materials/MaterialExpressionPreviousFrameSwitch.h" |
Syntax
UCLASS (CollapseCategories, HideCategories=Object, MinimalAPI)
class UMaterialExpressionPreviousFrameSwitch : public UMaterialExpression
Variables
| Type | Name | Description | |
|---|---|---|---|
  |
FExpressionInput | CurrentFrame | |
  |
FExpressionInput | PreviousFrame |
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
UMaterialExpressionPreviousFrameSwitch
(
const FObjectInitializer& ObjectInitializer |
Overridden from UMaterialExpression
| Type | Name | Description | |
|---|---|---|---|
  |
int32 | Compile
(
FMaterialCompiler* Compiler, |
Create the new shader code chunk needed for the Abs expression |
   |
bool | GenerateHLSLExpression
(
FMaterialHLSLGenerator& Generator, |
|
   |
void | GetCaption
(
TArray< FString >& OutCaptions |
Returns the text to display on the material expression (in the material editor). |
  |
void | GetExpressionToolTip
(
TArray< FString >& OutToolTip |
Get a tooltip for the expression itself. |
   |
FName | GetInputName
(
int32 InputIndex |
|
  |
uint32 | GetInputType
(
int32 InputIndex |
|
  |
uint32 | GetOutputType
(
int32 OutputIndex |
|
  |
bool | IsResultMaterialAttributes
(
int32 OutputIndex |
Marks certain expression types as outputting material attributes. |