---
name: "SoMultiTextureMatrixElement"
section: "3"
platform: "linux"
package: "coin"
version: "1:4.0.10-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/SoMultiTextureMatrixElement"
---

# SoMultiTextureMatrixElement(3)

The SoMultiTextureMatrixElement class is used to manage the texture matrix stack for texture units \> 0.

## NAME

SoMultiTextureMatrixElement - The **SoMultiTextureMatrixElement** class is used to manage the texture matrix stack for texture units \> 0.

## SYNOPSIS

\#include \<Inventor/elements/SoMultiTextureMatrixElement.h\>

Inherits **SoAccumulatedElement**.

Inherited by **SoGLMultiTextureMatrixElement**.

### Classes

class **UnitData**\

### Public Member Functions

virtual void **init** (**SoState** \*state)\
 virtual void **push** (**SoState** \*state)\

Public Member Functions inherited from **SoAccumulatedElement** virtual SbBool **matches** (const **SoElement** \*element) const\

Public Member Functions inherited from **SoElement** const **SoType** **getTypeId** (void) const\
 int **getStackIndex** (void) const\
 virtual void **pop** (**SoState** \*state, const **SoElement** \*prevTopElement)\
 void **setDepth** (const int **depth**)\
 int **getDepth** (void) const\
 virtual void **print** (FILE \*file=stdout) const\
 virtual **~SoElement** ()\

### Static Public Member Functions

static **SoType** **getClassTypeId** (void)\
 static int **getClassStackIndex** (void)\
 static void \* **createInstance** (void)\
 static void **initClass** (void)\
 static void **set** (**SoState** \*const state, **SoNode** \*const node, const int unit, const **SbMatrix** &matrix)\
 static void **mult** (**SoState** \*const state, **SoNode** \*const node, const int unit, const **SbMatrix** &matrix)\
 static const **SbMatrix** & **get** (**SoState** \*const state, const int unit=0)\
 static void **makeIdentity** (**SoState** \*const state, **SoNode** \*const node, const int unit=0)\
 static void **set** (**SoState** \*const state, **SoNode** \*const node, const **SbMatrix** &matrix)\
 static void **mult** (**SoState** \*const state, **SoNode** \*const node, const **SbMatrix** &matrix)\
 static void **translateBy** (**SoState** \*const state, **SoNode** \*const node, const **SbVec3f** &translation)\
 static void **rotateBy** (**SoState** \*const state, **SoNode** \*const node, const **SbRotation** &rotation)\
 static void **scaleBy** (**SoState** \*const state, **SoNode** \*const node, const **SbVec3f** &scaleFactor)\

Static Public Member Functions inherited from **SoAccumulatedElement** static **SoType** **getClassTypeId** (void)\
 static int **getClassStackIndex** (void)\
 static void **initClass** (void)\

Static Public Member Functions inherited from **SoElement** static void **initClass** (void)\
 static **SoType** **getClassTypeId** (void)\
 static int **getClassStackIndex** (void)\
 static void **initElements** (void)\
 static int **getNumStackIndices** (void)\
 static **SoType** **getIdFromStackIndex** (const int **stackIndex**)\

### Protected Member Functions

**SoMultiTextureMatrixElement** (void)\
 virtual **~SoMultiTextureMatrixElement** ()\
 int **getNumUnits** () const\
 **UnitData** & **getUnitData** (const int unit)\
 const **UnitData** & **getUnitData** (const int unit) const\
 virtual void **multElt** (const int unit, const **SbMatrix** &matrix)\
 virtual void **setElt** (const int unit, const **SbMatrix** &matrix)\
 virtual const **SbMatrix** & **getElt** (const int unit) const\

Protected Member Functions inherited from **SoAccumulatedElement** virtual **~SoAccumulatedElement** ()\
 void **clearNodeIds** (void)\
 void **addNodeId** (const **SoNode** \*const node)\
 void **setNodeId** (const **SoNode** \*const node)\
 void **copyNodeIds** (const **SoAccumulatedElement** \*copyfrom)\
 virtual **SoElement** \* **copyMatchInfo** (void) const\
 virtual void **captureThis** (**SoState** \*state) const\

Protected Member Functions inherited from **SoElement** **SoElement** (void)\
 void **capture** (**SoState** \*const state) const\
 void **setTypeId** (const **SoType** **typeId**)\
 void **setStackIndex** (const int index)\
 **SoElement** \* **getNextInStack** (void) const\
 **SoElement** \* **getNextFree** (void) const\

### Additional Inherited Members

Static Protected Member Functions inherited from **SoElement** static **SoElement** \* **getElement** (**SoState** \*const state, const int **stackIndex**)\
 static const **SoElement** \* **getConstElement** (**SoState** \*const state, const int **stackIndex**)\
 static int **createStackIndex** (const **SoType** id)\

Protected Attributes inherited from **SoAccumulatedElement** **SbList**\< SbUniqueId \> **nodeIds**\

Protected Attributes inherited from **SoElement** **SoType** **typeId**\
 int **stackIndex**\
 int **depth**\

Static Protected Attributes inherited from **SoElement** static int **classStackIndex**\
 static **SoTypeList** \* **stackToType**\

## Detailed Description

The **SoMultiTextureMatrixElement** class is used to manage the texture matrix stack for texture units \> 0.

The texture matrix is used to transform texture coordinates before being used to map textures onto polygons.

**Since**

Coin 2.2

## Constructor & Destructor Documentation

### SoMultiTextureMatrixElement::SoMultiTextureMatrixElement (void ) \[protected\]

Constructor.

### SoMultiTextureMatrixElement::~SoMultiTextureMatrixElement (void ) \[protected\], \[virtual\]

Destructor.

## Member Function Documentation

### SoType SoMultiTextureMatrixElement::getClassTypeId (void ) \[static\]

This static method returns the **SoType** object associated with objects of this class.

### int SoMultiTextureMatrixElement::getClassStackIndex (void ) \[static\]

This static method returns the state stack index for the class.

### void \* SoMultiTextureMatrixElement::createInstance (void ) \[static\]

*This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.*\

 Creates a new instance of the class type corresponding to the **SoType** object.

### void SoMultiTextureMatrixElement::initClass (void ) \[static\]

Initialize relevant common data for all instances, like the type system.

### void SoMultiTextureMatrixElement::init (SoState \* state) \[virtual\]

This function initializes the element type in the given **SoState**. It is called for the first element of each enabled element type in **SoState** objects.

Reimplemented from **SoAccumulatedElement**.

Reimplemented in **SoGLMultiTextureMatrixElement**.

### void SoMultiTextureMatrixElement::push (SoState \* state) \[virtual\]

This method is called every time a new element is required in one of the stacks. This happens when a writable element is requested, using **SoState::getElement()** or indirectly **SoElement::getElement()**, and the depth of the current element is less than the state depth.

Override this method if your element needs to copy data from the previous top of stack. The **push()** method is called on the new element, and the previous element can be found using **SoElement::getNextInStack()**.

Reimplemented from **SoAccumulatedElement**.

Reimplemented in **SoGLMultiTextureMatrixElement**.

### void SoMultiTextureMatrixElement::mult (SoState \*const state, SoNode \*const node, const int unit, const SbMatrix & matrix) \[static\]

Multiplies *matrix* into the current texture matrix.

### const SbMatrix & SoMultiTextureMatrixElement::get (SoState \*const state, const int unit = 0) \[static\]

Returns current texture matrix.

### void SoMultiTextureMatrixElement::multElt (const int unit, const SbMatrix & matrix) \[protected\], \[virtual\]

virtual method which is called from **mult()**. Multiplies *matrix* into element matrix.

Reimplemented in **SoGLMultiTextureMatrixElement**.

### void SoMultiTextureMatrixElement::setElt (const int unit, const SbMatrix & matrix) \[protected\], \[virtual\]

virtual method which is called from set(). Sets *matrix* into element matrix.

Reimplemented in **SoGLMultiTextureMatrixElement**.

### const SbMatrix & SoMultiTextureMatrixElement::getElt (const int unit) const \[protected\], \[virtual\]

Returns element matrix. Called from **get()**.

## Author

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