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Bugfix [#30097] Motion paths range not correct - Part B (Recalculating existing

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paths with new ranges)

If an object/bone already had a motion path, it was not possible to recalculate
it over a different frame range without firstly clearing these paths. This was
both a confusing and troublesome workflow, and has since been removed.
This commit is contained in:
Joshua Leung 2012-05-01 13:10:36 +00:00
parent cb99062ebc
commit 7a87b89a60
1 changed files with 22 additions and 7 deletions
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29
source/blender/blenkernel/intern/anim.c
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@ -144,9 +144,11 @@ void animviz_free_motionpath(bMotionPath *mpath)
/* ------------------- */
/* Setup motion paths for the given data
* - scene: current scene (for frame ranges, etc.)
* - ob: object to add paths for (must be provided)
* - pchan: posechannel to add paths for (optional; if not provided, object-paths are assumed)
* - Only used when explicitly calculating paths on bones which may/may not be consider already
*
* < scene: current scene (for frame ranges, etc.)
* < ob: object to add paths for (must be provided)
* < pchan: posechannel to add paths for (optional; if not provided, object-paths are assumed)
*/
bMotionPath *animviz_verify_motionpaths(ReportList *reports, Scene *scene, Object *ob, bPoseChannel *pchan)
{
@ -180,14 +182,27 @@ bMotionPath *animviz_verify_motionpaths(ReportList *reports, Scene *scene, Objec
}
/* if there is already a motionpath, just return that,
* but provided it's settings are ok
* provided it's settings are ok (saves extra free+alloc)
*/
if (*dst != NULL) {
int expected_length = avs->path_ef - avs->path_sf;
mpath= *dst;
/* if range is not invalid, and/or length is set ok, just return */
if ((mpath->start_frame != mpath->end_frame) && (mpath->length > 0))
return mpath;
/* path is "valid" if length is valid, but must also be of the same length as is being requested */
if ((mpath->start_frame != mpath->end_frame) && (mpath->length > 0)) {
/* outer check ensures that we have some curve data for this path */
if (mpath->length == expected_length) {
/* return/use this as it is already valid length */
return mpath;
}
else {
/* clear the existing path (as the range has changed), and reallocate below */
if (mpath->points)
MEM_freeN(mpath->points);
mpath->points = NULL;
}
}
}
else {
/* create a new motionpath, and assign it */