Panda3D
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00001 // Filename: jointVertexTransform.h 00002 // Created by: drose (24Mar05) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef JOINTVERTEXTRANSFORM_H 00016 #define JOINTVERTEXTRANSFORM_H 00017 00018 #include "pandabase.h" 00019 #include "characterJoint.h" 00020 #include "vertexTransform.h" 00021 #include "pointerTo.h" 00022 #include "lightMutex.h" 00023 00024 //////////////////////////////////////////////////////////////////// 00025 // Class : JointVertexTransform 00026 // Description : This is a specialization on VertexTransform that 00027 // returns the transform necessary to move vertices as 00028 // if they were assigned to the indicated joint. The 00029 // geometry itself should be parented to the scene graph 00030 // at the level of the character's root joint; that is, 00031 // it should not be parented under a node directly 00032 // animated by any joints. 00033 // 00034 // Multiple combinations of these with different weights 00035 // are used to implement soft-skinned vertices for an 00036 // animated character. 00037 //////////////////////////////////////////////////////////////////// 00038 class EXPCL_PANDA_CHAR JointVertexTransform : public VertexTransform { 00039 private: 00040 JointVertexTransform(); 00041 00042 PUBLISHED: 00043 JointVertexTransform(CharacterJoint *joint); 00044 virtual ~JointVertexTransform(); 00045 00046 INLINE const CharacterJoint *get_joint() const; 00047 00048 virtual void get_matrix(LMatrix4 &matrix) const; 00049 virtual void mult_matrix(LMatrix4 &result, const LMatrix4 &previous) const; 00050 virtual void accumulate_matrix(LMatrix4 &accum, PN_stdfloat weight) const; 00051 00052 virtual void output(ostream &out) const; 00053 00054 private: 00055 INLINE void check_matrix() const; 00056 void compute_matrix(); 00057 00058 PT(CharacterJoint) _joint; 00059 00060 LMatrix4 _matrix; 00061 bool _matrix_stale; 00062 LightMutex _lock; 00063 00064 public: 00065 static void register_with_read_factory(); 00066 virtual void write_datagram(BamWriter *manager, Datagram &dg); 00067 virtual int complete_pointers(TypedWritable **plist, BamReader *manager); 00068 00069 protected: 00070 static TypedWritable *make_from_bam(const FactoryParams ¶ms); 00071 void fillin(DatagramIterator &scan, BamReader *manager); 00072 00073 public: 00074 static TypeHandle get_class_type() { 00075 return _type_handle; 00076 } 00077 static void init_type() { 00078 VertexTransform::init_type(); 00079 register_type(_type_handle, "JointVertexTransform", 00080 VertexTransform::get_class_type()); 00081 } 00082 virtual TypeHandle get_type() const { 00083 return get_class_type(); 00084 } 00085 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00086 00087 private: 00088 static TypeHandle _type_handle; 00089 00090 friend class CharacterJoint; 00091 }; 00092 00093 #include "jointVertexTransform.I" 00094 00095 #endif