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Simplified the TangentSpaceGenerator so that is automatically converts any models

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with indices to one without indices and then runs the tangent space generation code on the result.
This commit is contained in:
Robert Osfield
2005-11-22 21:14:26 +00:00
parent 48a8f14ae7
commit f78a37be9c
4 changed files with 62 additions and 369 deletions
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71
include/osgUtil/TangentSpaceGenerator
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@@ -40,7 +40,7 @@ public:
TangentSpaceGenerator();
TangentSpaceGenerator(const TangentSpaceGenerator &copy, const osg::CopyOp &copyop = osg::CopyOp::SHALLOW_COPY);
void generate(osg::Geometry *geo, int normal_map_tex_unit = 0, bool use_indices = false);
void generate(osg::Geometry *geo, int normal_map_tex_unit = 0);
inline osg::Vec4Array *getTangentArray() { return T_.get(); }
inline const osg::Vec4Array *getTangentArray() const { return T_.get(); }
@@ -61,70 +61,11 @@ protected:
virtual ~TangentSpaceGenerator() {}
TangentSpaceGenerator &operator=(const TangentSpaceGenerator &) { return *this; }
// Base class for computing basis vectors
class BasisVectorsComputer : public osg::Referenced
{
public:
explicit BasisVectorsComputer(TangentSpaceGenerator* base) : base_( base ) {}
virtual void compute(osg::PrimitiveSet *pset,
const osg::Array *vx,
const osg::Array *nx,
const osg::Array *tx,
const osg::IndexArray *vix,
const osg::IndexArray *nix,
const osg::IndexArray *tix,
int iA, int iB, int iC) = 0;
protected:
virtual ~BasisVectorsComputer() {}
BasisVectorsComputer(const TangentSpaceGenerator &copy, const osg::CopyOp &copyop);
TangentSpaceGenerator* base_;
};
// Class for computing basis vectors without using indices
class VectorsComputerNoIndices : public BasisVectorsComputer
{
public:
explicit VectorsComputerNoIndices(TangentSpaceGenerator* base) : BasisVectorsComputer( base ) {}
void compute(osg::PrimitiveSet *pset,
const osg::Array *vx,
const osg::Array *nx,
const osg::Array *tx,
const osg::IndexArray *vix,
const osg::IndexArray *nix,
const osg::IndexArray *tix,
int iA, int iB, int iC);
protected:
virtual ~VectorsComputerNoIndices() {}
};
// Class for computing basis vectors using indices
class VectorsComputerUsingIndices : public BasisVectorsComputer
{
public:
explicit VectorsComputerUsingIndices(TangentSpaceGenerator* base) : BasisVectorsComputer( base ) {}
void compute(osg::PrimitiveSet *pset,
const osg::Array *vx,
const osg::Array *nx,
const osg::Array *tx,
const osg::IndexArray *vix,
const osg::IndexArray *nix,
const osg::IndexArray *tix,
int iA, int iB, int iC);
protected:
virtual ~VectorsComputerUsingIndices() {}
};
// declare as friends so that may operator on TangentSpaceGenerator protected member variables.
friend class BasisVectorsComputer;
friend class VectorsComputerNoIndices;
friend class VectorsComputerUsingIndices;
void compute(osg::PrimitiveSet *pset,
const osg::Array *vx,
const osg::Array *nx,
const osg::Array *tx,
int iA, int iB, int iC);
osg::ref_ptr<osg::Vec4Array> T_;
osg::ref_ptr<osg::Vec4Array> B_;