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== Child-Of Constraint ==

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Now 'Set Inverse' works correctly for PoseChannels in all cases. Previously, it was still using a temporary hack that failed when 'parent' bone had any transforms.
This commit is contained in:
Joshua Leung
2007-08-15 04:59:46 +00:00
parent 7cf316a037
commit 0b562ae340
1 changed files with 18 additions and 10 deletions
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28
source/blender/src/editconstraint.c
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@@ -1026,17 +1026,12 @@ void childof_const_setinv (void *conv, void *unused)
/* calculate/set inverse matrix */ /* calculate/set inverse matrix */
if (pchan) { if (pchan) {
/* for now, just use pchan->constinv.
* NOTE: bad hack... doesn't work in many cases
*/
//Mat4CpyMat4(data->invmat, pchan->constinv);
bConstraintOb *cob; bConstraintOb *cob;
float ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0); /* not accurate... */ float ctime= bsystem_time(ob, (float)G.scene->r.cfra, 0.0); /* not accurate... */
float pmat[4][4], chmat[4][4], cimat[4][4]; float pmat[4][4], chmat[4][4], cimat[4][4];
float vec0[3]={0,0,0}, vec1[3]={1,1,1}; float vec0[3]={0,0,0}, vec1[3]={1,1,1};
/* make copies of pchan's original matrices */ /* make copies of pchan's original matrices (to be restored later) */
Mat4CpyMat4(pmat, pchan->pose_mat); Mat4CpyMat4(pmat, pchan->pose_mat);
Mat4CpyMat4(chmat, pchan->chan_mat); Mat4CpyMat4(chmat, pchan->chan_mat);
Mat4CpyMat4(cimat, pchan->constinv); Mat4CpyMat4(cimat, pchan->constinv);
@@ -1048,15 +1043,28 @@ void childof_const_setinv (void *conv, void *unused)
Mat4One(pchan->constinv); Mat4One(pchan->constinv);
Mat4One(data->invmat); Mat4One(data->invmat);
/* do constraint solving - code copied from armature.c (where_is_pose_bone) */
/* do constraint solving on pose-matrix containing no transforms
* N.B. code is copied from armature.c (where_is_pose_bone)
*/
cob= constraints_make_evalob(ob, pchan, TARGET_BONE); cob= constraints_make_evalob(ob, pchan, TARGET_BONE);
solve_constraints(&pchan->constraints, cob, ctime); solve_constraints(&pchan->constraints, cob, ctime);
constraints_clear_evalob(cob); constraints_clear_evalob(cob);
/* now set inverse */
Mat4CpyMat4(data->invmat, pchan->constinv);
/* reset data */ /* parent-inverse matrix for this constraint is given by taking the
* local-space (i.e. without any standard parents + restpose) pose_matrix
* (that was calulated with no transforms applied), and inverting it.
*/
Mat4CpyMat4(pchan->constinv, pchan->pose_mat);
constraint_mat_convertspace(ob, pchan, pchan->constinv,
CONSTRAINT_SPACE_POSE, CONSTRAINT_SPACE_LOCAL);
Mat4Invert(data->invmat, pchan->constinv);
/* restore original matrices of pchan */
Mat4CpyMat4(pchan->pose_mat, pmat); Mat4CpyMat4(pchan->pose_mat, pmat);
Mat4CpyMat4(pchan->chan_mat, chmat); Mat4CpyMat4(pchan->chan_mat, chmat);
Mat4CpyMat4(pchan->constinv, cimat); Mat4CpyMat4(pchan->constinv, cimat);