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Timestamp:
10/24/04 16:42:40 (9 years ago)
Author:
robert
Message:

From Geoff Michel, speeling and typo fixes in osgUtil

Files:
1 modified

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  • OpenSceneGraph/trunk/include/osgUtil/TangentSpaceGenerator

    r3432 r3526  
    2525{ 
    2626 
    27     /** 
    28      This class generates three arrays containing tangent-space basis vectors. It takes 
    29      a texture-mapped Geometry object as input, traverses its primitive sets and computes 
    30      Tangent, Normal and Binormal vectors for each vertex, storing them into arrays. 
    31      The resulting arrays can be used as vertex program varying (per-vertex) parameters, 
    32      enabling advanced effects like bump-mapping. 
    33      To use this class, simply call the generate() method specifying the Geometry object 
    34      you want to process and the texture unit that contains UV mapping for the normal map; 
    35      then you can retrieve the TBN arrays by calling getTangentArray(), getNormalArray() 
    36      and getBinormalArray() methods. 
    37      */ 
    38     class OSGUTIL_EXPORT TangentSpaceGenerator: public osg::Referenced { 
    39     public: 
    40         TangentSpaceGenerator(); 
    41         TangentSpaceGenerator(const TangentSpaceGenerator &copy, const osg::CopyOp &copyop = osg::CopyOp::SHALLOW_COPY); 
     27/** 
     28 The TangentSpaceGenerator class generates three arrays containing tangent-space basis vectors. 
     29 It takes a texture-mapped Geometry object as input, traverses its primitive sets and computes 
     30 Tangent, Normal and Binormal vectors for each vertex, storing them into arrays. 
     31 The resulting arrays can be used as vertex program varying (per-vertex) parameters, 
     32 enabling advanced effects like bump-mapping. 
     33 To use this class, simply call the generate() method specifying the Geometry object 
     34 you want to process and the texture unit that contains UV mapping for the normal map; 
     35 then you can retrieve the TBN arrays by calling getTangentArray(), getNormalArray() 
     36 and getBinormalArray() methods. 
     37 */ 
     38class OSGUTIL_EXPORT TangentSpaceGenerator: public osg::Referenced { 
     39public: 
     40    TangentSpaceGenerator(); 
     41    TangentSpaceGenerator(const TangentSpaceGenerator &copy, const osg::CopyOp &copyop = osg::CopyOp::SHALLOW_COPY); 
    4242 
    43         void generate(osg::Geometry *geo, int normal_map_tex_unit = 0); 
     43    void generate(osg::Geometry *geo, int normal_map_tex_unit = 0); 
    4444 
    45         inline osg::Vec4Array *getTangentArray()               { return T_.get(); } 
    46         inline const osg::Vec4Array *getTangentArray() const   { return T_.get(); } 
    47         inline void setTangentArray(osg::Vec4Array *array)     { T_ = array; } 
     45    inline osg::Vec4Array *getTangentArray()               { return T_.get(); } 
     46    inline const osg::Vec4Array *getTangentArray() const   { return T_.get(); } 
     47    inline void setTangentArray(osg::Vec4Array *array)     { T_ = array; } 
    4848 
    49         inline osg::Vec4Array *getNormalArray()                { return N_.get(); } 
    50         inline const osg::Vec4Array *getNormalArray() const    { return N_.get(); } 
    51         inline void setNormalArray(osg::Vec4Array *array)      { N_ = array; } 
     49    inline osg::Vec4Array *getNormalArray()                { return N_.get(); } 
     50    inline const osg::Vec4Array *getNormalArray() const    { return N_.get(); } 
     51    inline void setNormalArray(osg::Vec4Array *array)      { N_ = array; } 
    5252 
    53         inline osg::Vec4Array *getBinormalArray()              { return B_.get(); } 
    54         inline const osg::Vec4Array *getBinormalArray() const  { return B_.get(); } 
    55         inline void setBinormalArray(osg::Vec4Array *array)    { B_ = array; } 
     53    inline osg::Vec4Array *getBinormalArray()              { return B_.get(); } 
     54    inline const osg::Vec4Array *getBinormalArray() const  { return B_.get(); } 
     55    inline void setBinormalArray(osg::Vec4Array *array)    { B_ = array; } 
    5656 
    57     protected: 
    58         virtual ~TangentSpaceGenerator() {} 
    59         TangentSpaceGenerator &operator=(const TangentSpaceGenerator &) { return *this; } 
     57protected: 
     58    virtual ~TangentSpaceGenerator() {} 
     59    TangentSpaceGenerator &operator=(const TangentSpaceGenerator &) { return *this; } 
    6060 
    61         void compute_basis_vectors(osg::PrimitiveSet *pset, const osg::Array *vx, const osg::Array *nx, const osg::Array *tx, int iA, int iB, int iC); 
     61    void compute_basis_vectors(osg::PrimitiveSet *pset, const osg::Array *vx, const osg::Array *nx, const osg::Array *tx, int iA, int iB, int iC); 
    6262 
    63     private: 
    64         osg::ref_ptr<osg::Vec4Array> T_; 
    65         osg::ref_ptr<osg::Vec4Array> B_; 
    66         osg::ref_ptr<osg::Vec4Array> N_; 
    67     }; 
     63private: 
     64    osg::ref_ptr<osg::Vec4Array> T_; 
     65    osg::ref_ptr<osg::Vec4Array> B_; 
     66    osg::ref_ptr<osg::Vec4Array> N_; 
     67}; 
    6868 
    6969}