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From Terry Welsh, added checks to incoming Geometry for existance of normals,

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and if they are present use these to compute the tanget and binormals
vectors perpendicular to existing normals.
This commit is contained in:
Robert Osfield
2004-06-04 08:24:13 +00:00
parent 0fac56f56a
commit 2cf45b50c9
2 changed files with 144 additions and 49 deletions
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2
include/osgUtil/TangentSpaceGenerator
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@@ -58,7 +58,7 @@ namespace osgUtil
virtual ~TangentSpaceGenerator() {}
TangentSpaceGenerator &operator=(const TangentSpaceGenerator &) { return *this; }
void compute_basis_vectors(osg::PrimitiveSet *pset, const osg::Array *vx, const osg::Array *tx, int iA, int iB, int iC);
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);
private:
osg::ref_ptr<osg::Vec4Array> T_;