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Unreal Engine C++ API Reference > Runtime > Engine > Materials
Inheritance Hierarchy
- UObjectBase
- UObjectBaseUtility
- UObject
- UMaterialExpression
- UMaterialExpressionTextureBase
- UMaterialExpressionTextureSample
- UMaterialExpressionParticleSubUV
- UMaterialExpressionTextureSampleParameter
- UMaterialExpressionTextureObjectParameter
- UMaterialExpressionTextureSampleParameter2D
- PAPER2UMaterialExpressionSpriteTextureSampler
- UMaterialExpressionAntialiasedTextureMask
- UMaterialExpressionMaterialXTextureSampleParameterBlur
- UMaterialExpressionTextureSampleParameterSubUV
- UMaterialExpressionTextureSampleParameter2DArray
- UMaterialExpressionTextureSampleParameterCube
- UMaterialExpressionTextureSampleParameterCubeArray
- UMaterialExpressionTextureSampleParameterVolume
References
Module | Engine |
Header | /Engine/Source/Runtime/Engine/Classes/Materials/MaterialExpressionTextureSample.h |
Include | #include "Materials/MaterialExpressionTextureSample.h" |
Syntax
class UMaterialExpressionTextureSample : public UMaterialExpressionTextureBase
Variables
Type | Name | Description | |
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uint8: 1 | AutomaticViewMipBias | Whether the texture should be sampled with per view mip biasing for sharper output with Temporal AA. |
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FExpressionInput | AutomaticViewMipBiasValue | |
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uint8: 1 | bShowTextureInputPin | Inherited parameter expressions can hide unused input pin. |
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uint8 | ConstCoordinate | Only used if Coordinates is not hooked up |
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int32 | ConstMipValue | Only used if MipValue is not hooked up |
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FExpressionInput | Coordinates | |
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FExpressionInput | CoordinatesDX | Enabled only if MipValueMode == TMVM_Derivative |
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FExpressionInput | CoordinatesDY | Enabled only if MipValueMode == TMVM_Derivative |
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FExpressionInput | MipValue | Meaning depends on MipValueMode, a single unit is one mip level |
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TEnumAsByte< ETextureMipValueMode > | MipValueMode | Defines how the MipValue property is applied to the texture lookup |
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TEnumAsByte< ESamplerSourceMode > | SamplerSource | Controls where the sampler for this texture lookup will come from. |
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FExpressionInput | TextureObject | Texture object input which overrides Texture if specified. |
Constructors
Type | Name | Description | |
---|---|---|---|
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UMaterialExpressionTextureSample
(
const FObjectInitializer& ObjectInitializer |
Functions
Type | Name | Description | |
---|---|---|---|
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int32 | CompileMipValue0
(
FMaterialCompiler* Compiler |
|
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int32 | CompileMipValue1
(
FMaterialCompiler* Compiler |
|
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bool | GenerateHLSLExpressionBase
(
FMaterialHLSLGenerator& Generator, |
|
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void | UpdateTextureResource
(
UTexture* InTexture |
Overridden from UMaterialExpression
Type | Name | Description | |
---|---|---|---|
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bool | If true, discards the output index when caching this expression which allows more cases to re-use the output instead of adding a separate instruction | |
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int32 | Compile
(
FMaterialCompiler* Compiler, |
Create the new shader code chunk needed for the Abs expression |
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bool | GenerateHLSLExpression
(
FMaterialHLSLGenerator& Generator, |
|
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void | GetCaption
(
TArray< FString >& OutCaptions |
Returns the text to display on the material expression (in the material editor). |
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void | GetConnectorToolTip
(
int32 InputIndex, |
Get a tooltip for the specified connector. |
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FExpressionInput * | GetInput
(
int32 InputIndex |
|
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FName | GetInputName
(
int32 InputIndex |
|
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TArrayView< FExpressionInput * > | Get the expression inputs supported by this expression (Note: property inputs NOT included). | |
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uint32 | GetInputType
(
int32 InputIndex |
|
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int32 | Returns the amount of padding to use for the label. | |
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int32 | GetWidth () |
Get the width required by this expression (in the material editor). |
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bool | MatchesSearchQuery
(
const TCHAR* SearchQuery |
MatchesSearchQuery: Check this expression to see if it matches the search query |
Overridden from UObject
Type | Name | Description | |
---|---|---|---|
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bool | CanEditChange
(
const FProperty* InProperty |
Called by the editor to query whether a property of this object is allowed to be modified. |
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void | PostEditChangeProperty
(
FPropertyChangedEvent& PropertyChangedEvent |
Called when a property on this object has been modified externally |
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void | PostLoad () |
Do any object-specific cleanup required immediately after loading an object. |