[Bf-blender-cvs] [258a0a655c5] temp-angavrilov: Animation: support filtering for curves that have cycle issues.
Alexander Gavrilov
noreply at git.blender.org
Tue Jan 18 15:35:41 CET 2022
Commit: 258a0a655c5c38f65bb829aa7d45cdd0ea552ee4
Author: Alexander Gavrilov
Date: Mon May 3 17:27:53 2021 +0300
Branches: temp-angavrilov
https://developer.blender.org/rB258a0a655c5c38f65bb829aa7d45cdd0ea552ee4
Animation: support filtering for curves that have cycle issues.
It is possible to have curves with cyclic extrapolation that
have a mismatch in their end keyframes, causing a jump.
Also, since the looping behavior is defined per curve rather than at
action level, it is possible for curve loop periods to get out of
sync with each other. This commit adds an option to compare curves
against the manual frame range specified in the action, and treat
any mismatches as errors for the purpose of F-Curve filtering.
When enabled, the check verifies that end values of cyclic curves
match, curves within a cyclic action have valid cyclic extrapolation,
and the action period evenly divides by the curve period (since
a curve looping at e.g. half of the action period length still
repeats in sync with the action).
Ref: D11803
Differential Revision: https://developer.blender.org/D13349
===================================================================
M release/scripts/startup/bl_ui/space_dopesheet.py
M source/blender/blenkernel/BKE_fcurve.h
M source/blender/blenkernel/intern/fcurve.c
M source/blender/editors/animation/anim_filter.c
M source/blender/makesdna/DNA_action_types.h
M source/blender/makesrna/intern/rna_action.c
===================================================================
diff --git a/release/scripts/startup/bl_ui/space_dopesheet.py b/release/scripts/startup/bl_ui/space_dopesheet.py
index 18dfa4da6c6..8e19a259c3b 100644
--- a/release/scripts/startup/bl_ui/space_dopesheet.py
+++ b/release/scripts/startup/bl_ui/space_dopesheet.py
@@ -79,6 +79,12 @@ class DopesheetFilterPopoverBase:
else: # graph and dopesheet editors - F-Curves and drivers only
col.prop(dopesheet, "show_only_errors", icon='NONE')
+ col.separator()
+
+ col2 = col.column(align=True)
+ col2.active = dopesheet.show_only_errors
+ col2.prop(dopesheet, "show_cycle_errors")
+
# Name/Membership Filters
# XXX: Perhaps these should just stay in the headers (exclusively)?
@classmethod
diff --git a/source/blender/blenkernel/BKE_fcurve.h b/source/blender/blenkernel/BKE_fcurve.h
index 121ec7f316b..8a05ce417f4 100644
--- a/source/blender/blenkernel/BKE_fcurve.h
+++ b/source/blender/blenkernel/BKE_fcurve.h
@@ -430,7 +430,7 @@ typedef enum eFCU_Cycle_Type {
/**
* Checks if the F-Curve has a Cycles modifier, and returns the type of the cycle behavior.
*/
-eFCU_Cycle_Type BKE_fcurve_get_cycle_type(struct FCurve *fcu);
+eFCU_Cycle_Type BKE_fcurve_get_cycle_type(const struct FCurve *fcu);
/**
* Recompute bezier handles of all three given BezTriples, so that `bezt` can be inserted between
diff --git a/source/blender/blenkernel/intern/fcurve.c b/source/blender/blenkernel/intern/fcurve.c
index f7a547543af..b497a4a5dac 100644
--- a/source/blender/blenkernel/intern/fcurve.c
+++ b/source/blender/blenkernel/intern/fcurve.c
@@ -1176,7 +1176,7 @@ void fcurve_samples_to_keyframes(FCurve *fcu, const int start, const int end)
* that the handles are correct.
*/
-eFCU_Cycle_Type BKE_fcurve_get_cycle_type(FCurve *fcu)
+eFCU_Cycle_Type BKE_fcurve_get_cycle_type(const FCurve *fcu)
{
FModifier *fcm = fcu->modifiers.first;
diff --git a/source/blender/editors/animation/anim_filter.c b/source/blender/editors/animation/anim_filter.c
index c1a09b9d21f..12387f46818 100644
--- a/source/blender/editors/animation/anim_filter.c
+++ b/source/blender/editors/animation/anim_filter.c
@@ -79,6 +79,7 @@
#include "BLI_alloca.h"
#include "BLI_blenlib.h"
#include "BLI_ghash.h"
+#include "BLI_math.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"
@@ -1215,6 +1216,53 @@ static bool skip_fcurve_with_name(
return true;
}
+/* Check if the F-Curve doesn't cycle properly based on action settings. */
+static bool fcurve_has_cycle_errors(const FCurve *fcu, const bAction *act)
+{
+ /* Check if the curve is cyclic. */
+ const eFCU_Cycle_Type cycle_type = BKE_fcurve_get_cycle_type(fcu);
+
+ if (cycle_type == FCU_CYCLE_NONE) {
+ /* Curves in a cyclic action should be cyclic; in an ordinary action either way is fine. */
+ return BKE_action_is_cyclic(act);
+ }
+
+ /* Check if the curve has enough points. */
+ if (fcu->totvert < 2 || !fcu->bezt) {
+ return true;
+ }
+
+ const BezTriple *first = &fcu->bezt[0], *last = &fcu->bezt[fcu->totvert - 1];
+
+ if (BKE_action_is_cyclic(act)) {
+ /* Check that it has a nonzero period length. */
+ const float curve_period = last->vec[1][0] - first->vec[1][0];
+
+ if (curve_period < 0.1f) {
+ return true;
+ }
+
+ /* Check that the action period is divisible by the curve period. */
+ const float action_period = act->frame_end - act->frame_start;
+ const float gap = action_period - roundf(action_period / curve_period) * curve_period;
+
+ if (fabsf(gap) > 1e-3f) {
+ return true;
+ }
+ }
+
+ /* In case of a perfect cycle, check that the start and end values match. */
+ if (cycle_type == FCU_CYCLE_PERFECT) {
+ const float magnitude = max_fff(fabsf(first->vec[1][1]), fabsf(last->vec[1][1]), 0.01f);
+
+ if (fabsf(first->vec[1][1] - last->vec[1][1]) > magnitude * 1e-4f) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
/**
* Check if F-Curve has errors and/or is disabled
*
@@ -1261,6 +1309,7 @@ static FCurve *animfilter_fcurve_next(bDopeSheet *ads,
FCurve *first,
eAnim_ChannelType channel_type,
int filter_mode,
+ bAction *act,
void *owner,
ID *owner_id)
{
@@ -1312,7 +1361,9 @@ static FCurve *animfilter_fcurve_next(bDopeSheet *ads,
/* error-based filtering... */
if ((ads) && (ads->filterflag & ADS_FILTER_ONLY_ERRORS)) {
/* skip if no errors... */
- if (fcurve_has_errors(fcu) == false) {
+ if (fcurve_has_errors(fcu) == false &&
+ !((ads->filterflag & ADS_FILTER_CYCLE_ERRORS) &&
+ fcurve_has_cycle_errors(fcu, act))) {
continue;
}
}
@@ -1334,6 +1385,7 @@ static size_t animfilter_fcurves(ListBase *anim_data,
FCurve *first,
eAnim_ChannelType fcurve_type,
int filter_mode,
+ bAction *act,
void *owner,
ID *owner_id,
ID *fcurve_owner_id)
@@ -1354,7 +1406,7 @@ static size_t animfilter_fcurves(ListBase *anim_data,
* Back to step 2 :)
*/
for (fcu = first;
- ((fcu = animfilter_fcurve_next(ads, fcu, fcurve_type, filter_mode, owner, owner_id)));
+ ((fcu = animfilter_fcurve_next(ads, fcu, fcurve_type, filter_mode, act, owner, owner_id)));
fcu = fcu->next) {
if (UNLIKELY(fcurve_type == ANIMTYPE_NLACURVE)) {
/* NLA Control Curve - Basically the same as normal F-Curves,
@@ -1429,11 +1481,18 @@ static size_t animfilter_act_group(bAnimContext *ac,
if (!(filter_mode & ANIMFILTER_FOREDIT) || EDITABLE_AGRP(agrp)) {
/* get first F-Curve which can be used here */
FCurve *first_fcu = animfilter_fcurve_next(
- ads, agrp->channels.first, ANIMTYPE_FCURVE, filter_mode, agrp, owner_id);
+ ads, agrp->channels.first, ANIMTYPE_FCURVE, filter_mode, act, agrp, owner_id);
/* filter list, starting from this F-Curve */
- tmp_items += animfilter_fcurves(
- &tmp_data, ads, first_fcu, ANIMTYPE_FCURVE, filter_mode, agrp, owner_id, &act->id);
+ tmp_items += animfilter_fcurves(&tmp_data,
+ ads,
+ first_fcu,
+ ANIMTYPE_FCURVE,
+ filter_mode,
+ act,
+ agrp,
+ owner_id,
+ &act->id);
}
}
}
@@ -1498,7 +1557,7 @@ static size_t animfilter_action(bAnimContext *ac,
if (!(filter_mode & ANIMFILTER_ACTGROUPED)) {
FCurve *firstfcu = (lastchan) ? (lastchan->next) : (act->curves.first);
items += animfilter_fcurves(
- anim_data, ads, firstfcu, ANIMTYPE_FCURVE, filter_mode, NULL, owner_id, &act->id);
+ anim_data, ads, firstfcu, ANIMTYPE_FCURVE, filter_mode, act, NULL, owner_id, &act->id);
}
/* return the number of items added to the list */
@@ -1631,6 +1690,7 @@ static size_t animfilter_nla_controls(
strip->fcurves.first,
ANIMTYPE_NLACURVE,
filter_mode,
+ NULL,
strip,
owner_id,
owner_id);
@@ -1687,8 +1747,15 @@ static size_t animfilter_block_data(
items += animfilter_nla(ac, anim_data, ads, adt, filter_mode, id);
},
{ /* Drivers */
- items += animfilter_fcurves(
- anim_data, ads, adt->drivers.first, ANIMTYPE_FCURVE, filter_mode, NULL, id, id);
+ items += animfilter_fcurves(anim_data,
+ ads,
+ adt->drivers.first,
+ ANIMTYPE_FCURVE,
+ filter_mode,
+ NULL,
+ NULL,
+ id,
+ id);
},
{ /* NLA Control Keyframes */
items += animfilter_nla_controls(anim_data, ads, adt, filter_mode, id);
diff --git a/source/blender/makesdna/DNA_action_types.h b/source/blender/makesdna/DNA_action_types.h
index 82b20483902..c610ec18234 100644
--- a/source/blender/makesdna/DNA_action_types.h
+++ b/source/blender/makesdna/DNA_action_types.h
@@ -781,6 +781,8 @@ typedef enum eDopeSheet_FilterFlag {
ADS_FILTER_INCL_HIDDEN = (1 << 26),
/** show only F-Curves which are disabled/have errors - for debugging drivers */
ADS_FILTER_ONLY_ERRORS = (1 << 28),
+ /** treat cyclic extrapolation issues as errors for the previous option */
+ ADS_FILTER_CYCLE_ERRORS = (1 << 29),
#if 0
/** combination filters (some only used at runtime) */
diff --git a/source/blender/makesrna/intern/rna_action.c b/source/blender/makesrna/intern/rna_action.c
index 6b134977c5a..32d85934e80 100644
--- a/source/blender/makesrna/intern/rna_action.c
+++ b/source/blender/makesrna/intern/rna_action.c
@@ -428,6 +428,17 @@ static void rna_def_dopesheet(BlenderRNA *brna)
RNA_def_property_ui_icon(prop, ICON_ERROR, 0);
RNA_def_property_update(prop, NC_ANIMATION | ND_ANIMCHAN | NA_EDITED, NULL);
+ prop = RNA_def_property(srna, "show_cycle_errors", PROP_BOOLEAN, PROP_NONE);
+ RNA_def_property_boolean_sdna(prop, NULL, "filterflag", ADS_FILTER_CYCLE_ERRORS);
+ RNA_def_property_ui_text(
+ prop,
+ "Cyclic Extrapolation Issues",
+ "Treat cyclic extrapolation issues as errors for the Only Show Errors option, detecting "
@@ Diff output truncated at 10240 characters. @@
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