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JointVertexTransform

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This commit is contained in:
David Rose 2005-03-25 13:57:54 +00:00
parent 24353df3ef
commit 4bb06ac900
3 changed files with 27 additions and 36 deletions
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21
panda/src/char/jointVertexTransform.I
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@ -18,23 +18,12 @@
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
// Function: JointVertexTransform::get_from // Function: JointVertexTransform::get_joint
// Access: Published // Access: Published
// Description: Returns the joint whose coordinate space this object // Description: Returns the joint for which this object returns the
// moves vertices from. // transform.
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
INLINE const CharacterJoint *JointVertexTransform:: INLINE const CharacterJoint *JointVertexTransform::
get_from() const { get_joint() const {
return _from; return _joint;
}
////////////////////////////////////////////////////////////////////
// Function: JointVertexTransform::get_to
// Access: Published
// Description: Returns the joint whose coordinate space this object
// moves vertices into.
////////////////////////////////////////////////////////////////////
INLINE const CharacterJoint *JointVertexTransform::
get_to() const {
return _to;
} }

19
panda/src/char/jointVertexTransform.cxx
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@ -44,13 +44,12 @@ JointVertexTransform() :
// other indicated joint's space. // other indicated joint's space.
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
JointVertexTransform:: JointVertexTransform::
JointVertexTransform(CharacterJoint *from, CharacterJoint *to) : JointVertexTransform(CharacterJoint *joint) :
_from(from), _joint(joint),
_to(to),
_matrix_stale(true) _matrix_stale(true)
{ {
// Tell the "to" joint that we need to be informed when it moves. // Tell the joint that we need to be informed when it moves.
_to->_vertex_transforms.insert(this); _joint->_vertex_transforms.insert(this);
} }
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
@ -60,8 +59,8 @@ JointVertexTransform(CharacterJoint *from, CharacterJoint *to) :
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
JointVertexTransform:: JointVertexTransform::
~JointVertexTransform() { ~JointVertexTransform() {
// Tell the "to" joint to stop informing us about its motion. // Tell the joint to stop informing us about its motion.
_to->_vertex_transforms.erase(this); _joint->_vertex_transforms.erase(this);
} }
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
@ -73,8 +72,8 @@ void JointVertexTransform::
get_matrix(LMatrix4f &matrix) const { get_matrix(LMatrix4f &matrix) const {
if (_matrix_stale) { if (_matrix_stale) {
((JointVertexTransform *)this)->_matrix = ((JointVertexTransform *)this)->_matrix =
_from->_initial_net_transform_inverse * _joint->_initial_net_transform_inverse *
_to->_net_transform; _joint->_net_transform;
((JointVertexTransform *)this)->_matrix_stale = false; ((JointVertexTransform *)this)->_matrix_stale = false;
} }
@ -88,7 +87,7 @@ get_matrix(LMatrix4f &matrix) const {
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
void JointVertexTransform:: void JointVertexTransform::
output(ostream &out) const { output(ostream &out) const {
out << _to->get_name(); out << _joint->get_name();
} }

23
panda/src/char/jointVertexTransform.h
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@ -27,11 +27,16 @@
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
// Class : JointVertexTransform // Class : JointVertexTransform
// Description : This is a specialization on VertexTransform that // Description : This is a specialization on VertexTransform that
// returns the relative transform from one joint's // returns the transform necessary to move vertices as
// initial position to another joint's (or possibly the // if they were assigned to the indicated joint. The
// same joint's) current position. It is used to // geometry itself should be parented to the scene graph
// implement soft-skinned vertices for an animated // at the level of the character's root joint; that is,
// character. // it should not be parented under a node directly
// animated by any joints.
//
// Multiple combinations of these with different weights
// are used to implement soft-skinned vertices for an
// animated character.
// //
// This is part of the experimental Geom rewrite. // This is part of the experimental Geom rewrite.
//////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////
@ -40,19 +45,17 @@ private:
JointVertexTransform(); JointVertexTransform();
PUBLISHED: PUBLISHED:
JointVertexTransform(CharacterJoint *from, CharacterJoint *to); JointVertexTransform(CharacterJoint *joint);
virtual ~JointVertexTransform(); virtual ~JointVertexTransform();
INLINE const CharacterJoint *get_from() const; INLINE const CharacterJoint *get_joint() const;
INLINE const CharacterJoint *get_to() const;
virtual void get_matrix(LMatrix4f &matrix) const; virtual void get_matrix(LMatrix4f &matrix) const;
virtual void output(ostream &out) const; virtual void output(ostream &out) const;
private: private:
PT(CharacterJoint) _from; PT(CharacterJoint) _joint;
PT(CharacterJoint) _to;
LMatrix4f _matrix; LMatrix4f _matrix;
bool _matrix_stale; bool _matrix_stale;