diff options
Diffstat (limited to 'source/blender/blenkernel/intern/fcurve.c')
| -rw-r--r-- | source/blender/blenkernel/intern/fcurve.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/source/blender/blenkernel/intern/fcurve.c b/source/blender/blenkernel/intern/fcurve.c index 1eed8c7c204..0ed3df2b96a 100644 --- a/source/blender/blenkernel/intern/fcurve.c +++ b/source/blender/blenkernel/intern/fcurve.c @@ -954,7 +954,7 @@ void calchandles_fcurve(FCurve *fcu) if (bezt->vec[2][0] < bezt->vec[1][0]) bezt->vec[2][0] = bezt->vec[1][0]; /* calculate auto-handles */ - BKE_nurb_handle_calc(bezt, prev, next, true); + BKE_nurb_handle_calc(bezt, prev, next, true, fcu->auto_smoothing); /* for automatic ease in and out */ if (BEZT_IS_AUTOH(bezt) && !cycle) { @@ -963,9 +963,16 @@ void calchandles_fcurve(FCurve *fcu) /* set both handles to have same horizontal value as keyframe */ if (fcu->extend == FCURVE_EXTRAPOLATE_CONSTANT) { bezt->vec[0][1] = bezt->vec[2][1] = bezt->vec[1][1]; + /* remember that these keyframes are special, they don't need to be adjusted */ + bezt->f5 = HD_AUTOTYPE_SPECIAL; } } } + + /* avoid total smoothing failure on duplicate keyframes (can happen during grab) */ + if (prev && prev->vec[1][0] >= bezt->vec[1][0]) { + prev->f5 = bezt->f5 = HD_AUTOTYPE_SPECIAL; + } /* advance pointers for next iteration */ prev = bezt; @@ -974,6 +981,18 @@ void calchandles_fcurve(FCurve *fcu) else next++; bezt++; } + + /* if cyclic extrapolation and Auto Clamp has triggered, ensure it is symmetric */ + if (cycle && (first->f5 != HD_AUTOTYPE_NORMAL || last->f5 != HD_AUTOTYPE_NORMAL)) { + first->vec[0][1] = first->vec[2][1] = first->vec[1][1]; + last->vec[0][1] = last->vec[2][1] = last->vec[1][1]; + first->f5 = last->f5 = HD_AUTOTYPE_SPECIAL; + } + + /* do a second pass for auto handle: compute the handle to have 0 accelaration step */ + if (fcu->auto_smoothing != FCURVE_SMOOTH_NONE) { + BKE_nurb_handle_smooth_fcurve(fcu->bezt, fcu->totvert, cycle); + } } void testhandles_fcurve(FCurve *fcu, const bool use_handle) |