class OSGFX_EXPORT osgFX::BumpMapping

This effect makes surfaces appear bumpy.

Inheritance:

Public Methods

BumpMapping()

BumpMapping(const BumpMapping &copy, const osg::CopyOp &copyop = osg::CopyOp::SHALLOW_COPY)

META_Effect(osgFX, BumpMapping, "Bump Mapping", "This effect makes surfaces appear bumpy. The child node must use two textures, " "one for diffuse color and one for the normal map (which can be created " "from a height map with tools like nVIDIA's normal map generator). Furthermore, " "tangent-space basis vectors must be created and assigned to each Geometry; this " "can be done quickly by calling BumpMapping::prepareChild(). Note that both " "diffuse and normal map textures must have corresponding UV maps defined in " "Geometry objects.\n" "This effect defines a preferred technique which uses ARB vertex & fragment " "programs, and a fallback technique which doesn't use fragment programs. The " "latter is more limited though since it can't handle ambient and specular " "components.", "Marco Jez")

void prepareGeometry(osg::Geometry* geo)

prepare a Geometry for bump lighting.

void prepareNode(osg::Node* node)

prepare a Node for bump lighting, calling prepareGeometry() for each Geometry

void prepareChild()

prepare the current child for bump lighting.

void setUpDemo()

set up a demo environment with predefined diffuse and normal maps, as well as texture coordinates

inline int getLightNumber() const

get the OpenGL light number

inline void setLightNumber(int n)

set the OpenGL light number that will be used in lighting computations

inline int getDiffuseTextureUnit() const

get the texture unit that contains diffuse color texture.

inline void setDiffuseTextureUnit(int n)

set the texture unit that contains diffuse color texture.

inline int getNormalMapTextureUnit() const

get the texture unit that contains normal map texture.

inline void setNormalMapTextureUnit(int n)

set the texture unit that contains normal map texture.

inline osg::Texture2D* getOverrideDiffuseTexture()

get the diffuse color texture that overrides the child's texture

inline const osg::Texture2D* getOverrideDiffuseTexture() const

get the const diffuse color texture that overrides the child's texture

inline void setOverrideDiffuseTexture(osg::Texture2D* texture)

set the diffuse color texture that overrides the child's texture

inline osg::Texture2D* getOverrideNormalMapTexture()

get the normal map texture that overrides the child's texture

inline const osg::Texture2D* getOverrideNormalMapTexture() const

get the const normal map texture that overrides the child's texture

inline void setOverrideNormalMapTexture(osg::Texture2D* texture)

set the normal map texture that overrides the child's texture

Protected Methods

virtual ~BumpMapping()

BumpMapping& operator=(const BumpMapping &)

bool define_techniques()

Inherited from Effect:

Public Methods

virtual inline bool isSameKindAs(const osg::Object* obj) const

virtual inline const char* libraryName() const

virtual inline const char* className() const

virtual const char* effectName() const

virtual const char* effectDescription() const

virtual const char* effectAuthor() const

virtual void traverse(osg::NodeVisitor &nv)

inline bool getEnabled() const

inline void setEnabled(bool v)

inline const osg::Node* getChild() const

inline osg::Node* getChild()

inline void setChild(osg::Node* child)

inline int getNumTechniques() const

inline Technique* getTechnique(int i)

inline const Technique* getTechnique(int i) const

inline int getSelectedTechnique() const

inline void selectTechnique(int i)

inline void addTechnique(Technique* tech)

inline void dirtyTechniques()

Public Members

enum TechniqueSelection

Protected Methods

virtual bool computeBound() const

Documentation

This effect makes surfaces appear bumpy. The child node must use two textures, one for diffuse color and one for the normal map (which can be created from a height map with tools like nVIDIA's normal map generator). Furthermore, tangent-space basis vectors must be created and assigned to each Geometry; this can be done quickly by calling BumpMapping::prepareChild(). Note that both diffuse and normal map textures must have corresponding UV maps defined in Geometry objects. This effect defines a preferred technique which uses ARB vertex & fragment programs, and a fallback technique which doesn't use fragment programs. The latter is more limited though since it can't handle ambient and specular components.

BumpMapping()

BumpMapping(const BumpMapping &copy, const osg::CopyOp &copyop = osg::CopyOp::SHALLOW_COPY)

META_Effect(osgFX, BumpMapping, "Bump Mapping", "This effect makes surfaces appear bumpy. The child node must use two textures, " "one for diffuse color and one for the normal map (which can be created " "from a height map with tools like nVIDIA's normal map generator). Furthermore, " "tangent-space basis vectors must be created and assigned to each Geometry; this " "can be done quickly by calling BumpMapping::prepareChild(). Note that both " "diffuse and normal map textures must have corresponding UV maps defined in " "Geometry objects.\n" "This effect defines a preferred technique which uses ARB vertex & fragment " "programs, and a fallback technique which doesn't use fragment programs. The " "latter is more limited though since it can't handle ambient and specular " "components.", "Marco Jez")

void prepareGeometry(osg::Geometry* geo)

prepare a Geometry for bump lighting. Tangent-space basis vectors are generated and attached to the geometry as vertex attribute arrays.

void prepareNode(osg::Node* node)

prepare a Node for bump lighting, calling prepareGeometry() for each Geometry

void prepareChild()

prepare the current child for bump lighting. Actually calls prepareNode(getChild())

void setUpDemo()

set up a demo environment with predefined diffuse and normal maps, as well as texture coordinates

virtual ~BumpMapping()

BumpMapping& operator=(const BumpMapping &)

bool define_techniques()

inline int getLightNumber() const

get the OpenGL light number

inline void setLightNumber(int n)

set the OpenGL light number that will be used in lighting computations

inline int getDiffuseTextureUnit() const

get the texture unit that contains diffuse color texture. Default is 1

inline void setDiffuseTextureUnit(int n)

set the texture unit that contains diffuse color texture. Default is 1

inline int getNormalMapTextureUnit() const

get the texture unit that contains normal map texture. Default is 0

inline void setNormalMapTextureUnit(int n)

set the texture unit that contains normal map texture. Default is 0

inline osg::Texture2D* getOverrideDiffuseTexture()

get the diffuse color texture that overrides the child's texture

inline const osg::Texture2D* getOverrideDiffuseTexture() const

get the const diffuse color texture that overrides the child's texture

inline void setOverrideDiffuseTexture(osg::Texture2D* texture)

set the diffuse color texture that overrides the child's texture

inline osg::Texture2D* getOverrideNormalMapTexture()

get the normal map texture that overrides the child's texture

inline const osg::Texture2D* getOverrideNormalMapTexture() const

get the const normal map texture that overrides the child's texture

inline void setOverrideNormalMapTexture(osg::Texture2D* texture)

set the normal map texture that overrides the child's texture

This class has no child classes.

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