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SoGLTextureMatrixElement

NAME

SoGLTextureMatrixElement -

The SoGLTextureMatrixElement class is used to update the OpenGL texture matrix.

Since (for some weird reason) most OpenGL implementations have a very small texture matrix stack, and since the matrix stack also is broken on many OpenGL implementations, the texture matrix is always loaded into OpenGL. We do not push() and pop() matrices.

SYNOPSIS

#include <Inventor/elements/SoGLTextureMatrixElement.h>

Inherits SoTextureMatrixElement.

Public Member Functions

virtual void init (SoState *state)

virtual void pop (SoState *state, const SoElement *prevTopElement)

virtual void setElt (const SbMatrix &matrix)

virtual void makeEltIdentity (void)

virtual void multElt (const SbMatrix &matrix)

virtual void translateEltBy (const SbVec3f &translation)

virtual void rotateEltBy (const SbRotation &translation)

virtual void scaleEltBy (const SbVec3f &scaleFactor)

Static Public Member Functions

static void initClass (void)

static void setEltIdentity (void)

Protected Member Functions

virtual ~SoGLTextureMatrixElement ()

Detailed Description

The SoGLTextureMatrixElement class is used to update the OpenGL texture matrix.

Since (for some weird reason) most OpenGL implementations have a very small texture matrix stack, and since the matrix stack also is broken on many OpenGL implementations, the texture matrix is always loaded into OpenGL. We do not push() and pop() matrices.

Constructor & Destructor Documentation

SoGLTextureMatrixElement::~SoGLTextureMatrixElement (void) [protected, virtual]The destructor.

Member Function Documentation

void SoGLTextureMatrixElement::initClass (void) [static]Initialize relevant common data for all instances, like the type system.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::setElt (const SbMatrix & matrix) [virtual]virtual method which is called from set(). Sets the texture matrix to matrix.

This method is an extension versus the Open Inventor API.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::makeEltIdentity (void) [virtual]virtual method which is called from makeIdentity(). Sets element matrix to identity.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::multElt (const SbMatrix & matrix) [virtual]virtual method which is called from mult(). Multiplies matrix into element matrix.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::translateEltBy (const SbVec3f & translation) [virtual]virtual method which is called from translateBy(). Appends translation to the element matrix.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::rotateEltBy (const SbRotation & rotation) [virtual]virtual method which is called from rotateBy(). Appends rotation to the element matrix.

Reimplemented from SoTextureMatrixElement.

void SoGLTextureMatrixElement::scaleEltBy (const SbVec3f & scaleFactor) [virtual]virtual method which is called from scaleBy(). Append scaleFactor to the element matrix.

Reimplemented from SoTextureMatrixElement.

Author

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