diff options
Diffstat (limited to 'source/blender/blenkernel/intern/fcurve.c')
| -rw-r--r-- | source/blender/blenkernel/intern/fcurve.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/source/blender/blenkernel/intern/fcurve.c b/source/blender/blenkernel/intern/fcurve.c index e2d0a479792..3bca77c5b51 100644 --- a/source/blender/blenkernel/intern/fcurve.c +++ b/source/blender/blenkernel/intern/fcurve.c @@ -3070,14 +3070,20 @@ float evaluate_fcurve_driver(PathResolvedRNA *anim_rna, return evaluate_fcurve_ex(fcu, evaltime, cvalue); } +/* Checks if the curve has valid keys, drivers or modifiers that produce an actual curve. */ +bool BKE_fcurve_is_empty(FCurve *fcu) +{ + return (fcu->totvert == 0) && (fcu->driver == NULL) && + !list_has_suitable_fmodifier(&fcu->modifiers, 0, FMI_TYPE_GENERATE_CURVE); +} + /* Calculate the value of the given F-Curve at the given frame, and set its curval */ float calculate_fcurve(PathResolvedRNA *anim_rna, FCurve *fcu, float evaltime) { /* only calculate + set curval (overriding the existing value) if curve has * any data which warrants this... */ - if ((fcu->totvert) || (fcu->driver && !(fcu->driver->flag & DRIVER_FLAG_INVALID)) || - list_has_suitable_fmodifier(&fcu->modifiers, 0, FMI_TYPE_GENERATE_CURVE)) { + if (!BKE_fcurve_is_empty(fcu)) { /* calculate and set curval (evaluates driver too if necessary) */ float curval; if (fcu->driver) { |