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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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