Breakdown Implementation
This patch adds the breakdown (or tween) functionality to the graph editor. The factor defines the linear interpolation from left key to right key. Reviewed by: Sybren A. Stüvel Differential Revision: https://developer.blender.org/D9375 Ref: D9375
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blender-bot
2023-02-14 06:23:08 +01:00
Referenced by issue #81785, Implementation: Modal Key Manipulation Operators
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@ -344,7 +344,8 @@ class GRAPH_MT_slider(Menu):
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def draw(self, _context):
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layout = self.layout
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layout.operator("graph.breakdown", text="Breakdown")
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layout.operator("graph.blend_to_neighbor", text="Blend To Neighbor")
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@ -400,6 +400,18 @@ void blend_to_neighbor_fcurve_segment(FCurve *fcu, FCurveSegment *segment, const
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/* ---------------- */
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void breakdown_fcurve_segment(FCurve *fcu, FCurveSegment *segment, const float factor)
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{
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BezTriple left_bezt = fcurve_segment_start_get(fcu, segment->start_index);
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BezTriple right_bezt = fcurve_segment_end_get(fcu, segment->start_index + segment->length);
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for (int i = segment->start_index; i < segment->start_index + segment->length; i++) {
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fcu->bezt[i].vec[1][1] = interpf(right_bezt.vec[1][1], left_bezt.vec[1][1], factor);
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}
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}
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/* ---------------- */
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/* Check if the keyframe interpolation type is supported */
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static bool prepare_for_decimate(FCurve *fcu, int i)
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{
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@ -392,6 +392,9 @@ void clean_fcurve(struct bAnimContext *ac,
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void blend_to_neighbor_fcurve_segment(struct FCurve *fcu,
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struct FCurveSegment *segment,
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const float factor);
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void breakdown_fcurve_segment(struct FCurve *fcu,
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struct FCurveSegment *segment,
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const float factor);
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bool decimate_fcurve(struct bAnimListElem *ale, float remove_ratio, float error_sq_max);
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/**
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* Use a weighted moving-means method to reduce intensity of fluctuations.
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@ -127,6 +127,7 @@ void GRAPH_OT_duplicate(struct wmOperatorType *ot);
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void GRAPH_OT_delete(struct wmOperatorType *ot);
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void GRAPH_OT_clean(struct wmOperatorType *ot);
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void GRAPH_OT_blend_to_neighbor(struct wmOperatorType *ot);
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void GRAPH_OT_breakdown(struct wmOperatorType *ot);
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void GRAPH_OT_decimate(struct wmOperatorType *ot);
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void GRAPH_OT_sample(struct wmOperatorType *ot);
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void GRAPH_OT_bake(struct wmOperatorType *ot);
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@ -471,6 +471,7 @@ void graphedit_operatortypes(void)
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WM_operatortype_append(GRAPH_OT_clean);
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WM_operatortype_append(GRAPH_OT_decimate);
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WM_operatortype_append(GRAPH_OT_blend_to_neighbor);
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WM_operatortype_append(GRAPH_OT_breakdown);
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WM_operatortype_append(GRAPH_OT_euler_filter);
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WM_operatortype_append(GRAPH_OT_delete);
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WM_operatortype_append(GRAPH_OT_duplicate);
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@ -681,3 +681,126 @@ void GRAPH_OT_blend_to_neighbor(wmOperatorType *ot)
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}
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/** \} */
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/* -------------------------------------------------------------------- */
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/** \name Breakdown Operator
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* \{ */
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static void breakdown_graph_keys(bAnimContext *ac, float factor)
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{
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ListBase anim_data = {NULL, NULL};
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ANIM_animdata_filter(ac, &anim_data, OPERATOR_DATA_FILTER, ac->data, ac->datatype);
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bAnimListElem *ale;
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for (ale = anim_data.first; ale; ale = ale->next) {
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FCurve *fcu = (FCurve *)ale->key_data;
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ListBase segments = find_fcurve_segments(fcu);
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LISTBASE_FOREACH (FCurveSegment *, segment, &segments) {
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breakdown_fcurve_segment(fcu, segment, factor);
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}
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BLI_freelistN(&segments);
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ale->update |= ANIM_UPDATE_DEFAULT;
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}
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ANIM_animdata_update(ac, &anim_data);
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ANIM_animdata_freelist(&anim_data);
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}
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static void breakdown_draw_status_header(bContext *C, tGraphSliderOp *gso)
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{
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char status_str[UI_MAX_DRAW_STR];
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char mode_str[32];
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char slider_string[UI_MAX_DRAW_STR];
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ED_slider_status_string_get(gso->slider, slider_string, UI_MAX_DRAW_STR);
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strcpy(mode_str, TIP_("Breakdown"));
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if (hasNumInput(&gso->num)) {
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char str_ofs[NUM_STR_REP_LEN];
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outputNumInput(&gso->num, str_ofs, &gso->scene->unit);
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BLI_snprintf(status_str, sizeof(status_str), "%s: %s", mode_str, str_ofs);
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}
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else {
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BLI_snprintf(status_str, sizeof(status_str), "%s: %s", mode_str, slider_string);
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}
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ED_workspace_status_text(C, status_str);
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}
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static void breakdown_modal_update(bContext *C, wmOperator *op)
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{
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tGraphSliderOp *gso = op->customdata;
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breakdown_draw_status_header(C, gso);
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/* Reset keyframe data to the state at invoke. */
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reset_bezts(gso);
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breakdown_graph_keys(&gso->ac, ED_slider_factor_get(gso->slider));
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WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_EDITED, NULL);
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}
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static int breakdown_invoke(bContext *C, wmOperator *op, const wmEvent *event)
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{
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const int invoke_result = graph_slider_invoke(C, op, event);
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if (invoke_result == OPERATOR_CANCELLED) {
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return invoke_result;
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}
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tGraphSliderOp *gso = op->customdata;
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gso->modal_update = breakdown_modal_update;
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breakdown_draw_status_header(C, gso);
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return invoke_result;
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}
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static int breakdown_exec(bContext *C, wmOperator *op)
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{
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bAnimContext ac;
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if (ANIM_animdata_get_context(C, &ac) == 0) {
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return OPERATOR_CANCELLED;
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}
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const float factor = RNA_float_get(op->ptr, "factor");
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breakdown_graph_keys(&ac, factor);
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/* Set notifier that keyframes have changed. */
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WM_event_add_notifier(C, NC_ANIMATION | ND_KEYFRAME | NA_EDITED, NULL);
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return OPERATOR_FINISHED;
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}
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void GRAPH_OT_breakdown(wmOperatorType *ot)
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{
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/* Identifiers. */
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ot->name = "Breakdown";
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ot->idname = "GRAPH_OT_breakdown";
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ot->description = "Move selected keyframes to an inbetween position relative to adjacent keys";
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/* API callbacks. */
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ot->invoke = breakdown_invoke;
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ot->modal = graph_slider_modal;
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ot->exec = breakdown_exec;
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ot->poll = graphop_editable_keyframes_poll;
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/* Flags. */
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ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
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RNA_def_float_factor(ot->srna,
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"factor",
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1.0f / 3.0f,
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-FLT_MAX,
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FLT_MAX,
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"Factor",
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"Favor either the left or the right key",
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0.0f,
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1.0f);
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}
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/** \} */
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