Function createOrientFromDir

Engine/source/math/mathUtils.cpp:191–213

//-----------------------------------------------------------------------------

MatrixF createOrientFromDir( const Point3F &direction )
{
	Point3F j = direction;
	Point3F k(0.0f, 0.0f, 1.0f);
	Point3F i;
	
	mCross( j, k, &i );

	if( i.magnitudeSafe() == 0.0f )
	{
		i.set( 0.0f, -1.0f, 0.0f );
	}

	i.normalizeSafe();
	mCross( i, j, &k );

   MatrixF mat( true );
   mat.setColumn( 0, i );
   mat.setColumn( 1, j );
   mat.setColumn( 2, k );

	return mat;
}

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