SoHeightMapToNormalMap(3)

NAME
SoHeightMapToNormalMap - Engine for computing a normal map from a height map.

SYNOPSIS

#include <Inventor/engines/SoHeightMapToNormalMap.h>

Inherits SoTexture2Convert.

  Public Types
enum NormalMapFormat { INT8 }

  Public Member Functions
virtual SoType getTypeId (void) const
virtual const SoFieldData * getFieldData (void) const
virtual const SoEngineOutputData * getOutputData (void) const
SoHeightMapToNormalMap (void)
Public Member Functions inherited from SoTexture2Convert Public Member Functions inherited from SoEngine
void evaluateWrapper (void)
virtual int getOutputs (SoEngineOutputList &l) const
SoEngineOutput * getOutput (const SbName &outputname) const
SbBool getOutputName (const SoEngineOutput *output, SbName &outputname) const
SbBool isNotifying (void) const
virtual void notify (SoNotList *nl)
SoEngine * copy (void) const
virtual SoFieldContainer * copyThroughConnection (void) const
SbBool shouldCopy (void) const
virtual void writeInstance (SoOutput *out)
Public Member Functions inherited from SoFieldContainer
void setToDefaults (void)
SbBool hasDefaultValues (void) const
SbBool fieldsAreEqual (const SoFieldContainer *container) const
void copyFieldValues (const SoFieldContainer *container, SbBool copyconnections=FALSE)
SbBool set (const char *const fielddata)
void get (SbString &fielddata)
virtual int getFields (SoFieldList &l) const
virtual int getAllFields (SoFieldList &l) const
virtual SoField * getField (const SbName &name) const
virtual SoField * getEventIn (const SbName &name) const
virtual SoField * getEventOut (const SbName &name) const
SbBool getFieldName (const SoField *const field, SbName &name) const
SbBool enableNotify (const SbBool flag)
SbBool isNotifyEnabled (void) const
SbBool set (const char *fielddata, SoInput *input)
void get (SbString &fielddata, SoOutput *out)
virtual SbBool validateNewFieldValue (SoField *field, void *newval)
virtual void addWriteReference (SoOutput *out, SbBool isfromfield=FALSE)
SbBool getIsBuiltIn (void) const
virtual void copyContents (const SoFieldContainer *from, SbBool copyconnections)
virtual void getFieldsMemorySize (size_t &managed, size_t &unmanaged) const
void setUserData (void *userdata) const
void * getUserData (void) const
Public Member Functions inherited from SoBase
void ref (void) const
void unref (void) const
void unrefNoDelete (void) const
int32_t getRefCount (void) const
void touch (void)
SbBool isOfType (SoType type) const
Returns TRUE if the type of this object is either of the same type or inherited from type.
virtual SbName getName (void) const
virtual void setName (const SbName &newname)
virtual void startNotify (void)
void addAuditor (void *const auditor, const SoNotRec::Type type)
void removeAuditor (void *const auditor, const SoNotRec::Type type)
const SoAuditorList & getAuditors (void) const
SbBool shouldWrite (void)
void assertAlive (void) const

  Static Public Member Functions
static SoType getClassTypeId (void)
static void * createInstance (void)
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static void convert (const unsigned char *srcptr, SbVec2s size, int nc, SbImage &dst_out)
Static Public Member Functions inherited from SoTexture2Convert
static SoType getClassTypeId (void)
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Static Public Member Functions inherited from SoEngine
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static void initClasses (void)
static SoType getClassTypeId (void)
This static method returns the SoType object associated with objects of this class.
static SoEngine * getByName (const SbName &name)
static int getByName (const SbName &name, SoEngineList &el)
Static Public Member Functions inherited from SoFieldContainer
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static SoType getClassTypeId (void)
This static method returns the SoType object associated with objects of this class.
static void cleanupClass (void)
static void initCopyDict (void)
static void addCopy (const SoFieldContainer *orig, const SoFieldContainer *copy)
static SoFieldContainer * checkCopy (const SoFieldContainer *orig)
static SoFieldContainer * findCopy (const SoFieldContainer *orig, const SbBool copyconnections)
static void copyDone (void)
Static Public Member Functions inherited from SoBase
static void initClass (void)
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
static SoType getClassTypeId (void)
This static method returns the SoType object associated with objects of this class.
static void addName (SoBase *const base, const char *const name)
static void removeName (SoBase *const base, const char *const name)
static void incrementCurrentWriteCounter (void)
static void decrementCurrentWriteCounter (void)
static SoBase * getNamedBase (const SbName &name, SoType type)
static int getNamedBases (const SbName &name, SoBaseList &baselist, SoType type)
static SbBool read (SoInput *input, SoBase *&base, SoType expectedtype)
static void setInstancePrefix (const SbString &c)
static void setTraceRefs (SbBool trace)
static SbBool getTraceRefs (void)
static SbBool connectRoute (SoInput *input, const SbName &fromnodename, const SbName &fromfieldname, const SbName &tonodename, const SbName &tofieldname)
static SbBool readRoute (SoInput *input)

  Public Attributes
SoSFEnum format
Public Attributes inherited from SoTexture2Convert
SoSFImage sourceImage
SoEngineOutput image
Public Attributes inherited from SoBase

  Protected Member Functions
virtual void inputChanged (SoField *which)
virtual void evaluate (void)
Protected Member Functions inherited from SoEngine
SoEngine (void)
virtual ~SoEngine (void)
virtual SbBool readInstance (SoInput *in, unsigned short flags)
void writeOutputTypes (SoOutput *out)
Protected Member Functions inherited from SoFieldContainer
SoFieldContainer (void)
virtual ~SoFieldContainer ()
Protected Member Functions inherited from SoBase
SoBase (void)
virtual ~SoBase ()
SbBool hasMultipleWriteRefs (void) const
SbBool writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const
void writeFooter (SoOutput *out) const
virtual const char * getFileFormatName (void) const
virtual SoNotRec createNotRec (void)

  Static Protected Member Functions
static const SoFieldData ** getInputDataPtr (void)
static const SoEngineOutputData ** getOutputDataPtr (void)
Static Protected Member Functions inherited from SoTexture2Convert
static const SoFieldData ** getInputDataPtr (void)
static const SoEngineOutputData ** getOutputDataPtr (void)
Static Protected Member Functions inherited from SoEngine
static const SoFieldData ** getInputDataPtr (void)
static const SoEngineOutputData ** getOutputDataPtr (void)
Static Protected Member Functions inherited from SoBase
static uint32_t getCurrentWriteCounter (void)
static void staticDataLock (void)
static void staticDataUnlock (void)

  Additional Inherited Members
Protected Types inherited from SoBase
enum BaseFlags { IS_ENGINE = 0x01, IS_GROUP = 0x02 }
Protected Attributes inherited from SoFieldContainer
SbBool isBuiltIn

Detailed Description

Engine for computing a normal map from a height map. This engine will create a normal map texture from a height map texture. You can use it in an Inventor file like this:

Texture2 {
  image = HeightMapToNormalMap {
    sourceImage = Texture2 { filename "HeightMap.jpg" } . image
  } . image
}

Be aware that the field connections will remain active, so both Texture2 nodes and the HeightMapToNormalMap engine will be kept resident in memory (unless you intervene manually and detach the engine) even though only the 'outer' Texture2 node is needed. This can give quite a big memory use overhead.

Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.
Since
    Coin 3.0

Member Enumeration Documentation

  enum SoHeightMapToNormalMap::NormalMapFormat
Enumeration of available normal map formats.

Enumerator

INT8
    Encode the normals as a 3 component byte texture. This is the only option for now, as long as float textures are not conveniently supported in Coin.

Constructor & Destructor Documentation

  SoHeightMapToNormalMap::SoHeightMapToNormalMap (void )
Constructor.

Member Function Documentation

  SoType SoHeightMapToNormalMap::getClassTypeId (void ) [static]
This static method returns the SoType object associated with objects of this class.

  SoType SoHeightMapToNormalMap::getTypeId (void ) const [virtual]
Returns the type identification of an object derived from a class inheriting SoBase. This is used for runtime type checking and 'downward' casting.

Reimplemented from SoTexture2Convert.

  const SoFieldData ** SoHeightMapToNormalMap::getInputDataPtr (void ) [static], [protected]
Returns the SoFieldData class which holds information about inputs in this engine.

  const SoEngineOutputData ** SoHeightMapToNormalMap::getOutputDataPtr (void ) [static], [protected]
Returns the SoEngineOutputData class which holds information about the outputs in this engine.

  const SoFieldData * SoHeightMapToNormalMap::getFieldData (void ) const [virtual]
Returns the SoFieldData class which holds information about inputs in this engine.

Reimplemented from SoTexture2Convert.

  const SoEngineOutputData * SoHeightMapToNormalMap::getOutputData (void ) const [virtual]
Returns the SoEngineOutputData class which holds information about the outputs in this engine.

Reimplemented from SoTexture2Convert.

  void * SoHeightMapToNormalMap::createInstance (void ) [static]
Creates a new instance of the class type corresponding to the SoType object.

  void SoHeightMapToNormalMap::convert (const unsigned char * srcptr, SbVec2s size, int nc, SbImage & dst_out) [static]
Static function for computing a normal map from a height map. This function can be used directly without any engine instantiation.

  void SoHeightMapToNormalMap::inputChanged (SoField * which) [protected], [virtual]
Called when an input is changed. The default method does nothing, but subclasses may override this method to do The Right Thing when a specific field is changed.

Reimplemented from SoEngine.

  void SoHeightMapToNormalMap::evaluate (void ) [protected], [virtual]
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

Implements SoEngine.

Member Data Documentation

  SoSFEnum SoHeightMapToNormalMap::format
This setting decides what kind of normal map is generated. For now, only the INT8 format is available, and it is the default value.

Author

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