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32 
33 /*!
34   \class SoInterpolateVec3f SoInterpolateVec3f.h Inventor/engines/SoInterpolateVec3f.h
35   \brief The SoInterpolateVec3f class is used to interpolate between pairs of 3D vectors.
36 
37   \ingroup engines
38 */
39 
40 #include <Inventor/engines/SoInterpolateVec3f.h>
41 
42 #include "engines/SoSubEngineP.h"
43 
44 /*!
45   \var SoMFVec3f SoInterpolateVec3f::input0
46   First set of input values.
47 */
48 /*!
49   \var SoMFVec3f SoInterpolateVec3f::input1
50   Second set of input values.
51 */
52 
53 SO_INTERPOLATE_INTERNAL_INIT_CLASS(SoInterpolateVec3f);
54 
55 SO_INTERPOLATE_INTERNAL_SOURCE(SoInterpolateVec3f,
56                                SoMFVec3f,
57                                SbVec3f,
58                                (0.0f,0.0f,0.0f),
59                                (0.0f,0.0f,0.0f),
60                                (v1-v0)*a+v0);
61