class OSGUTIL_EXPORT osgUtil::CubeMapGenerator

This is the base class for cube map generators.

Inheritance:

Public Methods

explicit CubeMapGenerator(int texture_size = 64)

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

void generateMap(bool use_osg_system = true)

generate the six cube images.

inline osg::Image* getImage(osg::TextureCubeMap::Face face)

inline const osg::Image* getImage(osg::TextureCubeMap::Face face) const

inline void set_pixel(int index, int c, int r, const osg::Vec4 &color)

inline osg::Vec4 vector_to_color(const osg::Vec3 &vec)

Protected Methods

virtual ~CubeMapGenerator()

CubeMapGenerator& operator=(const CubeMapGenerator &)

inline static osg::Vec4 vector_to_color(const osg::Vec3 &vec)

virtual osg::Vec4 compute_color(const osg::Vec3 &R) const = 0

override this method to define how colors are computed.

Documentation

This is the base class for cube map generators. It exposes the necessary interface to access the six generated images; descendants should only override the compute_color() method.

explicit CubeMapGenerator(int texture_size = 64)

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

void generateMap(bool use_osg_system = true)

generate the six cube images. If use_osg_system is true, then the OSG's coordinate system is used instead of the default OpenGL one.

virtual ~CubeMapGenerator()

CubeMapGenerator& operator=(const CubeMapGenerator &)

inline static osg::Vec4 vector_to_color(const osg::Vec3 &vec)

virtual osg::Vec4 compute_color(const osg::Vec3 &R) const = 0

override this method to define how colors are computed. The parameter R is the reflection vector, pointing from the center of the cube. The return value should be the RGBA color associated with that reflection ray.

inline osg::Image* getImage(osg::TextureCubeMap::Face face)

inline const osg::Image* getImage(osg::TextureCubeMap::Face face) const

inline void set_pixel(int index, int c, int r, const osg::Vec4 &color)

inline osg::Vec4 vector_to_color(const osg::Vec3 &vec)

Direct child classes:

ReflectionMapGenerator
HighlightMapGenerator
HalfWayMapGenerator

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