ff9cc9c170
Now that the `t->data` and `t->data_ext` arrays have the same ordering, it is no longer necessary to include each member of `t->data_ext` in `t->data`. Access can be done using the same index. Pull Request: https://projects.blender.org/blender/blender/pulls/141563
1794 lines
53 KiB
C++
1794 lines
53 KiB
C++
/* SPDX-FileCopyrightText: 2001-2002 NaN Holding BV. All rights reserved.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup edtransform
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*/
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#include "BLI_bounds.hh"
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#include "BLI_listbase.h"
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#include "BLI_math_matrix.h"
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#include "BLI_math_rotation.h"
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#include "BLI_math_vector.h"
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#include "BLI_time.h"
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#include "DNA_userdef_types.h"
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#include "GPU_immediate.hh"
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#include "GPU_matrix.hh"
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#include "GPU_state.hh"
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#include "BKE_editmesh.hh"
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#include "BKE_layer.hh"
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#include "BKE_object.hh"
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#include "BKE_scene.hh"
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#include "RNA_access.hh"
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#include "RNA_prototypes.hh"
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#include "WM_api.hh"
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#include "ED_image.hh"
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#include "ED_node.hh"
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#include "ED_transform_snap_object_context.hh"
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#include "ED_uvedit.hh"
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#include "UI_resources.hh"
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#include "UI_view2d.hh"
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#include "SEQ_sequencer.hh"
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#include "transform.hh"
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#include "transform_constraints.hh"
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#include "transform_convert.hh"
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#include "transform_mode.hh"
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#include "transform_snap.hh"
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namespace blender::ed::transform {
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/* Use half of flt-max so we can scale up without an exception. */
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/* -------------------------------------------------------------------- */
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/** \name Prototypes
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* \{ */
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static void setSnappingCallback(TransInfo *t);
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static void snap_target_view3d_fn(TransInfo *t, float *vec);
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static void snap_target_uv_fn(TransInfo *t, float *vec);
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static void snap_target_sequencer_fn(TransInfo *t, float *vec);
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static void snap_target_nla_fn(TransInfo *t, float *vec);
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static void snap_source_median_fn(TransInfo *t);
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static void snap_source_center_fn(TransInfo *t);
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static void snap_source_closest_fn(TransInfo *t);
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static void snap_source_active_fn(TransInfo *t);
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static eSnapMode snapObjectsTransform(
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TransInfo *t, const float mval[2], float *dist_px, float r_loc[3], float r_no[3]);
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/** \} */
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/* -------------------------------------------------------------------- */
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/** \name Implementations
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* \{ */
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#if 0
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int BIF_snappingSupported(Object *obedit)
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{
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int status = 0;
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/* Only support object mesh, armature, curves. */
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if (obedit == nullptr ||
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ELEM(obedit->type, OB_MESH, OB_ARMATURE, OB_CURVES_LEGACY, OB_LATTICE, OB_MBALL))
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{
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status = 1;
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}
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return status;
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}
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#endif
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static bool snap_use_backface_culling(const TransInfo *t)
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{
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BLI_assert(t->spacetype == SPACE_VIEW3D);
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View3D *v3d = static_cast<View3D *>(t->view);
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if ((v3d->shading.type == OB_SOLID) && (v3d->shading.flag & V3D_SHADING_BACKFACE_CULLING)) {
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return true;
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}
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if (v3d->shading.type == OB_RENDER &&
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(t->scene->display.shading.flag & V3D_SHADING_BACKFACE_CULLING) &&
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BKE_scene_uses_blender_workbench(t->scene))
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{
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return true;
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}
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if (t->settings->snap_flag & SCE_SNAP_BACKFACE_CULLING) {
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return true;
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}
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return false;
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}
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bool validSnap(const TransInfo *t)
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{
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return (t->tsnap.status & (SNAP_TARGET_FOUND | SNAP_SOURCE_FOUND)) ==
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(SNAP_TARGET_FOUND | SNAP_SOURCE_FOUND) ||
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(t->tsnap.status & (SNAP_MULTI_POINTS | SNAP_SOURCE_FOUND)) ==
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(SNAP_MULTI_POINTS | SNAP_SOURCE_FOUND);
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}
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void transform_snap_flag_from_modifiers_set(TransInfo *t)
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{
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if (ELEM(t->spacetype, SPACE_ACTION, SPACE_NLA)) {
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/* Those space-types define their own invert behavior instead of toggling it on/off. */
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return;
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}
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if (t->spacetype == SPACE_GRAPH) {
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/* This is to stay consistent with the behavior from 3.6. */
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if (t->modifiers & MOD_SNAP_INVERT) {
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t->tsnap.mode |= SCE_SNAP_TO_INCREMENT;
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}
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else {
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t->tsnap.mode &= ~SCE_SNAP_TO_INCREMENT;
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}
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/* In 3.6 when snapping was disabled, pressing the invert button would turn on snapping.
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* But it wouldn't turn it off when it was enabled. */
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if ((t->modifiers & MOD_SNAP) || (t->modifiers & MOD_SNAP_INVERT)) {
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t->tsnap.flag |= SCE_SNAP;
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}
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else {
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t->tsnap.flag &= ~SCE_SNAP;
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}
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return;
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}
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SET_FLAG_FROM_TEST(t->tsnap.flag,
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(((t->modifiers & (MOD_SNAP | MOD_SNAP_INVERT)) == MOD_SNAP) ||
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((t->modifiers & (MOD_SNAP | MOD_SNAP_INVERT)) == MOD_SNAP_INVERT)),
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SCE_SNAP);
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}
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bool transform_snap_is_active(const TransInfo *t)
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{
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return (t->tsnap.flag & SCE_SNAP) != 0;
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}
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bool transformModeUseSnap(const TransInfo *t)
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{
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/* The VSE and animation editors should not depend on the snapping options of the 3D viewport. */
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if (ELEM(t->spacetype, SPACE_ACTION, SPACE_GRAPH, SPACE_NLA, SPACE_SEQ)) {
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return true;
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}
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ToolSettings *ts = t->settings;
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if (t->mode == TFM_TRANSLATION) {
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return (ts->snap_transform_mode_flag & SCE_SNAP_TRANSFORM_MODE_TRANSLATE) != 0;
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}
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if (t->mode == TFM_ROTATION) {
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return (ts->snap_transform_mode_flag & SCE_SNAP_TRANSFORM_MODE_ROTATE) != 0;
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}
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if (t->mode == TFM_RESIZE) {
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return (ts->snap_transform_mode_flag & SCE_SNAP_TRANSFORM_MODE_SCALE) != 0;
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}
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if (ELEM(t->mode,
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TFM_VERT_SLIDE,
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TFM_EDGE_SLIDE,
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TFM_SEQ_SLIDE,
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TFM_TIME_TRANSLATE,
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TFM_TIME_EXTEND))
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{
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return true;
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}
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return false;
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}
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static bool doForceIncrementSnap(const TransInfo *t)
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{
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if (ELEM(t->spacetype, SPACE_GRAPH, SPACE_ACTION, SPACE_NLA)) {
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/* These spaces don't support increment snapping. */
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return false;
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}
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if (t->spacetype == SPACE_SEQ && ELEM(t->mode, TFM_ROTATION, TFM_RESIZE)) {
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return true;
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}
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if (t->modifiers & MOD_SNAP_FORCED) {
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return false;
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}
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return !transformModeUseSnap(t);
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}
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void drawSnapping(TransInfo *t)
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{
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uchar col[4], selectedCol[4], activeCol[4];
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if (!(transform_snap_is_active(t) || t->modifiers & MOD_EDIT_SNAP_SOURCE)) {
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return;
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}
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const bool draw_source = (t->flag & T_DRAW_SNAP_SOURCE) &&
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(t->tsnap.status & (SNAP_SOURCE_FOUND | SNAP_MULTI_POINTS));
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const bool draw_target = (t->tsnap.status & (SNAP_TARGET_FOUND | SNAP_MULTI_POINTS));
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if (!(draw_source || draw_target)) {
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return;
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}
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if (t->spacetype == SPACE_SEQ) {
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UI_GetThemeColor3ubv(TH_SEQ_ACTIVE, col);
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col[3] = 128;
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}
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else if (t->spacetype != SPACE_IMAGE) {
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UI_GetThemeColor3ubv(TH_TRANSFORM, col);
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col[3] = 128;
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UI_GetThemeColor3ubv(TH_SELECT, selectedCol);
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selectedCol[3] = 128;
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UI_GetThemeColor3ubv(TH_ACTIVE, activeCol);
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activeCol[3] = 192;
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}
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if (t->spacetype == SPACE_VIEW3D) {
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const float *source_loc = nullptr;
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const float *target_loc = nullptr;
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GPU_depth_test(GPU_DEPTH_NONE);
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RegionView3D *rv3d = (RegionView3D *)t->region->regiondata;
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if (!BLI_listbase_is_empty(&t->tsnap.points)) {
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/* Draw snap points. */
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float size = 2.0f * UI_GetThemeValuef(TH_VERTEX_SIZE);
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float view_inv[4][4];
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copy_m4_m4(view_inv, rv3d->viewinv);
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uint pos = GPU_vertformat_attr_add(
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immVertexFormat(), "pos", blender::gpu::VertAttrType::SFLOAT_32_32_32);
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immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
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if (!BLI_listbase_is_empty(&t->tsnap.points)) {
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LISTBASE_FOREACH (TransSnapPoint *, p, &t->tsnap.points) {
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if (p == t->tsnap.selectedPoint) {
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immUniformColor4ubv(selectedCol);
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}
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else {
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immUniformColor4ubv(col);
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}
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imm_drawcircball(p->co, ED_view3d_pixel_size(rv3d, p->co) * size, view_inv, pos);
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}
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}
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immUnbindProgram();
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}
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if (draw_source) {
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source_loc = t->tsnap.snap_source;
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}
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if (t->tsnap.status & SNAP_TARGET_FOUND) {
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target_loc = t->tsnap.snap_target;
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}
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ED_view3d_cursor_snap_draw_util(
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rv3d, source_loc, target_loc, t->tsnap.source_type, t->tsnap.target_type, col, activeCol);
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/* Draw normal if needed. */
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if (target_loc && usingSnappingNormal(t) && validSnappingNormal(t)) {
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uint pos = GPU_vertformat_attr_add(
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immVertexFormat(), "pos", blender::gpu::VertAttrType::SFLOAT_32_32_32);
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immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
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immUniformColor4ubv(activeCol);
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immBegin(GPU_PRIM_LINES, 2);
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immVertex3fv(pos, target_loc);
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immVertex3f(pos,
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target_loc[0] + t->tsnap.snapNormal[0],
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target_loc[1] + t->tsnap.snapNormal[1],
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target_loc[2] + t->tsnap.snapNormal[2]);
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immEnd();
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immUnbindProgram();
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}
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GPU_depth_test(GPU_DEPTH_LESS_EQUAL);
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}
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else if (t->spacetype == SPACE_IMAGE) {
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uint pos = GPU_vertformat_attr_add(
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immVertexFormat(), "pos", blender::gpu::VertAttrType::SFLOAT_32_32);
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float x, y;
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const float snap_point[2] = {
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t->tsnap.snap_target[0] / t->aspect[0],
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t->tsnap.snap_target[1] / t->aspect[1],
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};
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UI_view2d_view_to_region_fl(&t->region->v2d, UNPACK2(snap_point), &x, &y);
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float radius = 2.5f * UI_GetThemeValuef(TH_VERTEX_SIZE) * U.pixelsize;
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GPU_matrix_push_projection();
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wmOrtho2_region_pixelspace(t->region);
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immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
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immUniformColor3ub(255, 255, 255);
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imm_draw_circle_wire_2d(pos, x, y, radius, 8);
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immUnbindProgram();
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GPU_matrix_pop_projection();
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}
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else if (t->spacetype == SPACE_SEQ) {
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const ARegion *region = t->region;
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GPU_blend(GPU_BLEND_ALPHA);
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uint pos = GPU_vertformat_attr_add(
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immVertexFormat(), "pos", blender::gpu::VertAttrType::SFLOAT_32_32);
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immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
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immUniformColor4ubv(col);
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float pixelx = BLI_rctf_size_x(®ion->v2d.cur) / BLI_rcti_size_x(®ion->v2d.mask);
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if (region->regiontype == RGN_TYPE_PREVIEW) {
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if (t->tsnap.direction & DIR_GLOBAL_X) {
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immRectf(pos,
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t->tsnap.snap_target[0] - pixelx,
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region->v2d.cur.ymax,
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t->tsnap.snap_target[0] + pixelx,
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region->v2d.cur.ymin);
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}
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if (t->tsnap.direction & DIR_GLOBAL_Y) {
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immRectf(pos,
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region->v2d.cur.xmin,
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t->tsnap.snap_target[1] - pixelx,
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region->v2d.cur.xmax,
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t->tsnap.snap_target[1] + pixelx);
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}
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}
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else {
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immRectf(pos,
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t->tsnap.snap_target[0] - pixelx,
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region->v2d.cur.ymax,
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t->tsnap.snap_target[0] + pixelx,
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region->v2d.cur.ymin);
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}
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immUnbindProgram();
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GPU_blend(GPU_BLEND_NONE);
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}
|
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}
|
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eRedrawFlag handleSnapping(TransInfo *t, const wmEvent *event)
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{
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eRedrawFlag status = TREDRAW_NOTHING;
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|
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#if 0 /* XXX: need a proper selector for all snap mode. */
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if (BIF_snappingSupported(t->obedit) && (event->type == EVT_TABKEY) &&
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(event->modifier & KM_SHIFT))
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{
|
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/* Toggle snap and reinitialize. */
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t->settings->snap_flag ^= SCE_SNAP;
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initSnapping(t, nullptr);
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status = TREDRAW_HARD;
|
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}
|
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#endif
|
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if (event->type == MOUSEMOVE) {
|
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status |= updateSelectedSnapPoint(t);
|
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}
|
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|
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return status;
|
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}
|
||
|
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static bool applyFaceProject(TransInfo *t,
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TransDataContainer *tc,
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TransData *td,
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TransDataExtension *td_ext)
|
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{
|
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float iloc[3], loc[3], no[3];
|
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float mval_fl[2];
|
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|
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copy_v3_v3(iloc, td->loc);
|
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if (tc->use_local_mat) {
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mul_m4_v3(tc->mat, iloc);
|
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}
|
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else if (t->options & CTX_OBJECT) {
|
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Object *ob = static_cast<Object *>(td->extra);
|
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BKE_object_eval_transform_all(t->depsgraph, t->scene, ob);
|
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copy_v3_v3(iloc, ob->object_to_world().location());
|
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}
|
||
|
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if (ED_view3d_project_float_global(t->region, iloc, mval_fl, V3D_PROJ_TEST_NOP) !=
|
||
V3D_PROJ_RET_OK)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
SnapObjectParams snap_object_params{};
|
||
snap_object_params.snap_target_select = t->tsnap.target_operation;
|
||
snap_object_params.edit_mode_type = (t->flag & T_EDIT) != 0 ? SNAP_GEOM_EDIT : SNAP_GEOM_FINAL;
|
||
snap_object_params.occlusion_test = SNAP_OCCLUSION_ALWAYS;
|
||
snap_object_params.use_backface_culling = (t->tsnap.flag & SCE_SNAP_BACKFACE_CULLING) != 0;
|
||
|
||
eSnapMode hit = blender::ed::transform::snap_object_project_view3d(
|
||
t->tsnap.object_context,
|
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t->depsgraph,
|
||
t->region,
|
||
static_cast<const View3D *>(t->view),
|
||
SCE_SNAP_TO_FACE,
|
||
&snap_object_params,
|
||
nullptr,
|
||
mval_fl,
|
||
nullptr,
|
||
nullptr,
|
||
loc,
|
||
no);
|
||
if (hit != SCE_SNAP_TO_FACE) {
|
||
return false;
|
||
}
|
||
|
||
float tvec[3];
|
||
sub_v3_v3v3(tvec, loc, iloc);
|
||
|
||
mul_m3_v3(td->smtx, tvec);
|
||
|
||
add_v3_v3(td->loc, tvec);
|
||
|
||
if ((t->tsnap.flag & SCE_SNAP_ROTATE) && (t->options & CTX_OBJECT)) {
|
||
/* Handle alignment as well. */
|
||
const float *original_normal;
|
||
float mat[3][3];
|
||
|
||
/* In pose mode, we want to align normals with Y axis of bones. */
|
||
original_normal = td->axismtx[2];
|
||
|
||
rotation_between_vecs_to_mat3(mat, original_normal, no);
|
||
|
||
transform_data_ext_rotate(td, td_ext, mat, true);
|
||
|
||
/* TODO: support constraints for rotation too? see #ElementRotation. */
|
||
}
|
||
return true;
|
||
}
|
||
|
||
static void applyFaceNearest(TransInfo *t, TransDataContainer *tc, TransData *td)
|
||
{
|
||
float init_loc[3];
|
||
float prev_loc[3];
|
||
float snap_loc[3], snap_no[3];
|
||
|
||
copy_v3_v3(init_loc, td->iloc);
|
||
copy_v3_v3(prev_loc, td->loc);
|
||
if (tc->use_local_mat) {
|
||
mul_m4_v3(tc->mat, init_loc);
|
||
mul_m4_v3(tc->mat, prev_loc);
|
||
}
|
||
else if (t->options & CTX_OBJECT) {
|
||
Object *ob = static_cast<Object *>(td->extra);
|
||
BKE_object_eval_transform_all(t->depsgraph, t->scene, ob);
|
||
copy_v3_v3(init_loc, ob->object_to_world().location());
|
||
}
|
||
|
||
SnapObjectParams snap_object_params{};
|
||
snap_object_params.snap_target_select = t->tsnap.target_operation;
|
||
snap_object_params.edit_mode_type = (t->flag & T_EDIT) != 0 ? SNAP_GEOM_EDIT : SNAP_GEOM_FINAL;
|
||
snap_object_params.occlusion_test = SNAP_OCCLUSION_ALWAYS;
|
||
snap_object_params.use_backface_culling = false;
|
||
snap_object_params.face_nearest_steps = t->tsnap.face_nearest_steps;
|
||
snap_object_params.keep_on_same_target = t->tsnap.flag & SCE_SNAP_KEEP_ON_SAME_OBJECT;
|
||
|
||
eSnapMode hit = blender::ed::transform::snap_object_project_view3d(
|
||
t->tsnap.object_context,
|
||
t->depsgraph,
|
||
t->region,
|
||
static_cast<const View3D *>(t->view),
|
||
SCE_SNAP_INDIVIDUAL_NEAREST,
|
||
&snap_object_params,
|
||
init_loc,
|
||
nullptr,
|
||
prev_loc,
|
||
nullptr,
|
||
snap_loc,
|
||
snap_no);
|
||
|
||
if (hit != SCE_SNAP_INDIVIDUAL_NEAREST) {
|
||
return;
|
||
}
|
||
|
||
float tvec[3];
|
||
sub_v3_v3v3(tvec, snap_loc, prev_loc);
|
||
mul_m3_v3(td->smtx, tvec);
|
||
add_v3_v3(td->loc, tvec);
|
||
|
||
/* TODO: support snap alignment similar to #SCE_SNAP_INDIVIDUAL_PROJECT? */
|
||
}
|
||
|
||
bool transform_snap_project_individual_is_active(const TransInfo *t)
|
||
{
|
||
if (!transform_snap_is_active(t)) {
|
||
return false;
|
||
}
|
||
|
||
return (t->tsnap.mode & (SCE_SNAP_INDIVIDUAL_PROJECT | SCE_SNAP_INDIVIDUAL_NEAREST)) != 0;
|
||
}
|
||
|
||
void transform_snap_project_individual_apply(TransInfo *t)
|
||
{
|
||
if (!transform_snap_project_individual_is_active(t)) {
|
||
return;
|
||
}
|
||
|
||
/* XXX: flickers in object mode. */
|
||
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
|
||
TransData *td = tc->data;
|
||
TransDataExtension *td_ext = tc->data_ext;
|
||
for (int i = 0; i < tc->data_len; i++, td++) {
|
||
if (td->flag & TD_SKIP) {
|
||
continue;
|
||
}
|
||
|
||
if ((t->flag & T_PROP_EDIT) && (td->factor == 0.0f)) {
|
||
continue;
|
||
}
|
||
|
||
/* If both face ray-cast and face nearest methods are enabled, start with face ray-cast and
|
||
* fall back to face nearest ray-cast does not hit. */
|
||
bool hit = false;
|
||
if (t->tsnap.mode & SCE_SNAP_INDIVIDUAL_PROJECT) {
|
||
hit = applyFaceProject(t, tc, td, td_ext);
|
||
if (td_ext) {
|
||
td_ext++;
|
||
}
|
||
}
|
||
|
||
if (!hit && t->tsnap.mode & SCE_SNAP_INDIVIDUAL_NEAREST) {
|
||
applyFaceNearest(t, tc, td);
|
||
}
|
||
#if 0 /* TODO: support this? */
|
||
constraintTransLim(t, td);
|
||
#endif
|
||
}
|
||
}
|
||
}
|
||
|
||
static bool transform_snap_mixed_is_active(const TransInfo *t)
|
||
{
|
||
if (!transform_snap_is_active(t)) {
|
||
return false;
|
||
}
|
||
|
||
return (t->tsnap.mode &
|
||
(SCE_SNAP_TO_VERTEX | SCE_SNAP_TO_EDGE | SCE_SNAP_TO_FACE | SCE_SNAP_TO_VOLUME |
|
||
SCE_SNAP_TO_EDGE_MIDPOINT | SCE_SNAP_TO_EDGE_PERPENDICULAR | SCE_SNAP_TO_GRID)) != 0;
|
||
}
|
||
|
||
void transform_snap_mixed_apply(TransInfo *t, float *vec)
|
||
{
|
||
if (!transform_snap_mixed_is_active(t)) {
|
||
return;
|
||
}
|
||
|
||
if (t->tsnap.mode != SCE_SNAP_TO_INCREMENT) {
|
||
double current = BLI_time_now_seconds();
|
||
|
||
/* Time base quirky code to go around find-nearest slowness. */
|
||
/* TODO: add exception for object mode, no need to slow it down then. */
|
||
if (current - t->tsnap.last >= 0.01) {
|
||
if (t->tsnap.snap_target_fn) {
|
||
t->tsnap.snap_target_fn(t, vec);
|
||
}
|
||
if (t->tsnap.snap_source_fn) {
|
||
t->tsnap.snap_source_fn(t);
|
||
}
|
||
|
||
t->tsnap.last = current;
|
||
}
|
||
|
||
if (validSnap(t)) {
|
||
t->mode_info->snap_apply_fn(t, vec);
|
||
}
|
||
}
|
||
}
|
||
|
||
void resetSnapping(TransInfo *t)
|
||
{
|
||
t->tsnap.status = SNAP_RESETTED;
|
||
t->tsnap.source_type = SCE_SNAP_TO_NONE;
|
||
t->tsnap.target_type = SCE_SNAP_TO_NONE;
|
||
t->tsnap.mode = SCE_SNAP_TO_NONE;
|
||
t->tsnap.target_operation = SCE_SNAP_TARGET_ALL;
|
||
t->tsnap.source_operation = SCE_SNAP_SOURCE_CLOSEST;
|
||
t->tsnap.last = 0;
|
||
|
||
t->tsnap.snapNormal[0] = 0;
|
||
t->tsnap.snapNormal[1] = 0;
|
||
t->tsnap.snapNormal[2] = 0;
|
||
}
|
||
|
||
bool usingSnappingNormal(const TransInfo *t)
|
||
{
|
||
return (t->tsnap.flag & SCE_SNAP_ROTATE) != 0;
|
||
}
|
||
|
||
bool validSnappingNormal(const TransInfo *t)
|
||
{
|
||
if (validSnap(t)) {
|
||
if (!is_zero_v3(t->tsnap.snapNormal)) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
static bool bm_edge_is_snap_target(BMEdge *e, void * /*user_data*/)
|
||
{
|
||
if (BM_elem_flag_test(e, BM_ELEM_SELECT | BM_ELEM_HIDDEN) ||
|
||
BM_elem_flag_test(e->v1, BM_ELEM_SELECT) || BM_elem_flag_test(e->v2, BM_ELEM_SELECT))
|
||
{
|
||
return false;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
static bool bm_face_is_snap_target(BMFace *f, void * /*user_data*/)
|
||
{
|
||
if (BM_elem_flag_test(f, BM_ELEM_SELECT | BM_ELEM_HIDDEN)) {
|
||
return false;
|
||
}
|
||
|
||
BMLoop *l_iter, *l_first;
|
||
l_iter = l_first = BM_FACE_FIRST_LOOP(f);
|
||
do {
|
||
if (BM_elem_flag_test(l_iter->v, BM_ELEM_SELECT)) {
|
||
return false;
|
||
}
|
||
} while ((l_iter = l_iter->next) != l_first);
|
||
|
||
return true;
|
||
}
|
||
|
||
short *transform_snap_flag_from_spacetype_ptr(TransInfo *t, const PropertyRNA **r_prop = nullptr)
|
||
{
|
||
ToolSettings *ts = t->settings;
|
||
switch (t->spacetype) {
|
||
case SPACE_VIEW3D:
|
||
if (r_prop) {
|
||
*r_prop = &rna_ToolSettings_use_snap;
|
||
}
|
||
return &ts->snap_flag;
|
||
case SPACE_NODE:
|
||
if (r_prop) {
|
||
*r_prop = &rna_ToolSettings_use_snap_node;
|
||
}
|
||
return &ts->snap_flag_node;
|
||
case SPACE_IMAGE:
|
||
if (r_prop) {
|
||
*r_prop = &rna_ToolSettings_use_snap_uv;
|
||
}
|
||
return &ts->snap_uv_flag;
|
||
case SPACE_SEQ:
|
||
if (r_prop) {
|
||
*r_prop = &rna_ToolSettings_use_snap_sequencer;
|
||
}
|
||
return &ts->snap_flag_seq;
|
||
case SPACE_ACTION:
|
||
case SPACE_NLA:
|
||
if (r_prop) {
|
||
*r_prop = &rna_ToolSettings_use_snap_anim;
|
||
}
|
||
return &ts->snap_flag_anim;
|
||
case SPACE_GRAPH: {
|
||
SpaceGraph *graph_editor = static_cast<SpaceGraph *>(t->area->spacedata.first);
|
||
switch (graph_editor->mode) {
|
||
case SIPO_MODE_DRIVERS:
|
||
/* The driver editor has a separate snapping flag so it can be kept disabled while
|
||
* keeping it enabled in the Graph Editor. */
|
||
return &ts->snap_flag_driver;
|
||
|
||
case SIPO_MODE_ANIMATION: {
|
||
if (r_prop) {
|
||
*r_prop = &rna_ToolSettings_use_snap_anim;
|
||
}
|
||
return &ts->snap_flag_anim;
|
||
}
|
||
default:
|
||
BLI_assert_unreachable();
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
/* #SPACE_EMPTY.
|
||
* It can happen when the operator is called via a handle in `bpy.app.handlers`. */
|
||
return nullptr;
|
||
}
|
||
|
||
static eSnapFlag snap_flag_from_spacetype(TransInfo *t)
|
||
{
|
||
if (short *snap_flag = transform_snap_flag_from_spacetype_ptr(t)) {
|
||
return eSnapFlag(*snap_flag);
|
||
}
|
||
|
||
/* #SPACE_EMPTY.
|
||
* It can happen when the operator is called via a handle in `bpy.app.handlers`. */
|
||
return eSnapFlag(0);
|
||
}
|
||
|
||
static eSnapMode snap_mode_from_spacetype(TransInfo *t)
|
||
{
|
||
ToolSettings *ts = t->settings;
|
||
|
||
if (t->spacetype == SPACE_NODE) {
|
||
return eSnapMode(ts->snap_node_mode);
|
||
}
|
||
|
||
if (t->spacetype == SPACE_IMAGE) {
|
||
return eSnapMode(ts->snap_uv_mode);
|
||
}
|
||
|
||
if (t->spacetype == SPACE_SEQ) {
|
||
return eSnapMode(seq::tool_settings_snap_mode_get(t->scene));
|
||
}
|
||
|
||
if (t->spacetype == SPACE_VIEW3D) {
|
||
if (t->options & (CTX_CAMERA | CTX_EDGE_DATA | CTX_PAINT_CURVE)) {
|
||
return SCE_SNAP_TO_INCREMENT;
|
||
}
|
||
|
||
return eSnapMode(ts->snap_mode);
|
||
}
|
||
|
||
if (ELEM(t->spacetype, SPACE_ACTION, SPACE_NLA)) {
|
||
return eSnapMode(ts->snap_anim_mode);
|
||
}
|
||
|
||
if (t->spacetype == SPACE_GRAPH) {
|
||
SpaceGraph *graph_editor = static_cast<SpaceGraph *>(t->area->spacedata.first);
|
||
switch (graph_editor->mode) {
|
||
case SIPO_MODE_DRIVERS:
|
||
/* Snapping to full values is the only mode that currently makes
|
||
* sense for the driver editor. */
|
||
return SCE_SNAP_TO_FRAME;
|
||
|
||
case SIPO_MODE_ANIMATION:
|
||
return eSnapMode(ts->snap_anim_mode);
|
||
|
||
default:
|
||
BLI_assert_unreachable();
|
||
break;
|
||
}
|
||
}
|
||
|
||
return SCE_SNAP_TO_INCREMENT;
|
||
}
|
||
|
||
static eSnapTargetOP snap_target_select_from_spacetype_and_tool_settings(TransInfo *t)
|
||
{
|
||
/* `t->tsnap.target_operation` not initialized yet. */
|
||
BLI_assert(t->tsnap.target_operation == SCE_SNAP_TARGET_ALL);
|
||
|
||
eSnapTargetOP r_target_operation = SCE_SNAP_TARGET_ALL;
|
||
|
||
if (ELEM(t->spacetype, SPACE_VIEW3D, SPACE_IMAGE) && !(t->options & CTX_CAMERA)) {
|
||
BKE_view_layer_synced_ensure(t->scene, t->view_layer);
|
||
Base *base_act = BKE_view_layer_active_base_get(t->view_layer);
|
||
const int obedit_type = t->obedit_type;
|
||
if (base_act && (base_act->object->mode & OB_MODE_PARTICLE_EDIT)) {
|
||
/* Particles edit mode. */
|
||
}
|
||
else if (t->options & (CTX_GPENCIL_STROKES | CTX_CURSOR | CTX_OBMODE_XFORM_OBDATA)) {
|
||
/* In "Edit Strokes" mode,
|
||
* snap tool can perform snap to selected or active objects (see #49632)
|
||
* TODO: perform self snap in gpencil_strokes.
|
||
*
|
||
* When we're moving the origins, allow snapping onto our own geometry (see #69132). */
|
||
}
|
||
else if (obedit_type != -1) {
|
||
/* Edit mode. */
|
||
if (obedit_type == OB_MESH) {
|
||
/* Editing a mesh. */
|
||
if ((t->flag & T_PROP_EDIT) != 0) {
|
||
/* Exclude editmesh when using proportional edit. */
|
||
r_target_operation |= SCE_SNAP_TARGET_NOT_EDITED;
|
||
}
|
||
/* UV editing must never snap to the selection as this is what is transformed. */
|
||
if (t->spacetype == SPACE_IMAGE) {
|
||
r_target_operation |= SCE_SNAP_TARGET_NOT_SELECTED;
|
||
}
|
||
}
|
||
else if (ELEM(obedit_type, OB_ARMATURE, OB_CURVES_LEGACY, OB_SURF, OB_LATTICE, OB_MBALL)) {
|
||
/* Temporary limited to edit mode armature, curves, surfaces, lattices, and meta-balls.
|
||
*/
|
||
r_target_operation |= SCE_SNAP_TARGET_NOT_SELECTED;
|
||
}
|
||
}
|
||
else {
|
||
/* Object or pose mode. */
|
||
r_target_operation |= SCE_SNAP_TARGET_NOT_SELECTED | SCE_SNAP_TARGET_NOT_ACTIVE;
|
||
}
|
||
}
|
||
else if (ELEM(t->spacetype, SPACE_NODE, SPACE_SEQ)) {
|
||
r_target_operation |= SCE_SNAP_TARGET_NOT_SELECTED;
|
||
}
|
||
|
||
/* Use scene defaults only when transform is modal. */
|
||
if (t->flag & T_MODAL) {
|
||
ToolSettings *ts = t->settings;
|
||
SET_FLAG_FROM_TEST(
|
||
r_target_operation, (ts->snap_flag & SCE_SNAP_NOT_TO_ACTIVE), SCE_SNAP_TARGET_NOT_ACTIVE);
|
||
SET_FLAG_FROM_TEST(r_target_operation,
|
||
!(ts->snap_flag & SCE_SNAP_TO_INCLUDE_EDITED),
|
||
SCE_SNAP_TARGET_NOT_EDITED);
|
||
SET_FLAG_FROM_TEST(r_target_operation,
|
||
!(ts->snap_flag & SCE_SNAP_TO_INCLUDE_NONEDITED),
|
||
SCE_SNAP_TARGET_NOT_NONEDITED);
|
||
SET_FLAG_FROM_TEST(r_target_operation,
|
||
(ts->snap_flag & SCE_SNAP_TO_ONLY_SELECTABLE),
|
||
SCE_SNAP_TARGET_ONLY_SELECTABLE);
|
||
}
|
||
|
||
return r_target_operation;
|
||
}
|
||
|
||
static void snap_object_context_init(TransInfo *t)
|
||
{
|
||
if (t->data_type == &TransConvertType_Mesh) {
|
||
/* Ignore elements being transformed. */
|
||
blender::ed::transform::snap_object_context_set_editmesh_callbacks(
|
||
t->tsnap.object_context,
|
||
(bool (*)(BMVert *, void *))BM_elem_cb_check_hflag_disabled,
|
||
bm_edge_is_snap_target,
|
||
bm_face_is_snap_target,
|
||
POINTER_FROM_UINT(BM_ELEM_SELECT | BM_ELEM_HIDDEN));
|
||
}
|
||
else {
|
||
/* Ignore hidden geometry in the general case. */
|
||
blender::ed::transform::snap_object_context_set_editmesh_callbacks(
|
||
t->tsnap.object_context,
|
||
(bool (*)(BMVert *, void *))BM_elem_cb_check_hflag_disabled,
|
||
(bool (*)(BMEdge *, void *))BM_elem_cb_check_hflag_disabled,
|
||
(bool (*)(BMFace *, void *))BM_elem_cb_check_hflag_disabled,
|
||
POINTER_FROM_UINT(BM_ELEM_HIDDEN));
|
||
}
|
||
}
|
||
|
||
static void initSnappingMode(TransInfo *t)
|
||
{
|
||
if (!transformModeUseSnap(t)) {
|
||
/* In this case, snapping is always disabled by default. */
|
||
t->modifiers &= ~MOD_SNAP;
|
||
}
|
||
else if (t->flag & T_MODAL) {
|
||
/* Use scene defaults only when transform is modal. */
|
||
if (t->tsnap.flag & SCE_SNAP) {
|
||
t->modifiers |= MOD_SNAP;
|
||
}
|
||
}
|
||
|
||
if (doForceIncrementSnap(t)) {
|
||
t->tsnap.mode = SCE_SNAP_TO_INCREMENT;
|
||
}
|
||
|
||
if ((t->spacetype != SPACE_VIEW3D) || (t->flag & T_NO_PROJECT)) {
|
||
/* Force project off when not supported. */
|
||
t->tsnap.mode &= ~(SCE_SNAP_INDIVIDUAL_PROJECT | SCE_SNAP_INDIVIDUAL_NEAREST);
|
||
}
|
||
|
||
if (t->tsnap.mode & SCE_SNAP_TO_EDGE_PERPENDICULAR) {
|
||
t->flag |= T_DRAW_SNAP_SOURCE;
|
||
}
|
||
}
|
||
|
||
void transform_snap_grid_init(const TransInfo *t, float r_snap[3], float *r_snap_precision)
|
||
{
|
||
/* Default values. */
|
||
r_snap[0] = r_snap[1] = 1.0f;
|
||
r_snap[2] = 0.0f;
|
||
*r_snap_precision = 0.1f;
|
||
|
||
if (t->spacetype == SPACE_VIEW3D) {
|
||
/* Used by incremental snap. */
|
||
if (t->region->regiontype == RGN_TYPE_WINDOW) {
|
||
View3D *v3d = static_cast<View3D *>(t->area->spacedata.first);
|
||
r_snap[0] = r_snap[1] = r_snap[2] = ED_view3d_grid_view_scale(
|
||
t->scene, v3d, t->region, nullptr);
|
||
}
|
||
}
|
||
else if (t->spacetype == SPACE_IMAGE) {
|
||
SpaceImage *sima = static_cast<SpaceImage *>(t->area->spacedata.first);
|
||
const View2D *v2d = &t->region->v2d;
|
||
int grid_size = SI_GRID_STEPS_LEN;
|
||
float zoom_factor = ED_space_image_zoom_level(v2d, grid_size);
|
||
float grid_steps_x[SI_GRID_STEPS_LEN];
|
||
float grid_steps_y[SI_GRID_STEPS_LEN];
|
||
|
||
ED_space_image_grid_steps(sima, grid_steps_x, grid_steps_y, grid_size);
|
||
/* Snapping value based on what type of grid is used (adaptive-subdividing or custom-grid). */
|
||
r_snap[0] = ED_space_image_increment_snap_value(grid_size, grid_steps_x, zoom_factor);
|
||
r_snap[1] = ED_space_image_increment_snap_value(grid_size, grid_steps_y, zoom_factor);
|
||
*r_snap_precision = 0.5f;
|
||
}
|
||
else if (t->spacetype == SPACE_CLIP) {
|
||
r_snap[0] = r_snap[1] = 0.125f;
|
||
*r_snap_precision = 0.5f;
|
||
}
|
||
else if (t->spacetype == SPACE_NODE) {
|
||
r_snap[0] = r_snap[1] = space_node::grid_size_get();
|
||
}
|
||
}
|
||
|
||
void transform_snap_reset_from_mode(TransInfo *t, wmOperator *op)
|
||
{
|
||
ToolSettings *ts = t->settings;
|
||
eSnapSourceOP snap_source = eSnapSourceOP(ts->snap_target);
|
||
|
||
resetSnapping(t);
|
||
|
||
t->tsnap.mode = snap_mode_from_spacetype(t);
|
||
t->tsnap.flag = snap_flag_from_spacetype(t);
|
||
t->tsnap.target_operation = snap_target_select_from_spacetype_and_tool_settings(t);
|
||
t->tsnap.face_nearest_steps = max_ii(ts->snap_face_nearest_steps, 1);
|
||
|
||
initSnappingMode(t);
|
||
|
||
/* Overwrite defaults with values in properties. */
|
||
PropertyRNA *prop;
|
||
if (op && (prop = RNA_struct_find_property(op->ptr, "snap"))) {
|
||
if (RNA_property_is_set(op->ptr, prop)) {
|
||
SET_FLAG_FROM_TEST(t->modifiers, RNA_property_boolean_get(op->ptr, prop), MOD_SNAP);
|
||
}
|
||
|
||
if ((prop = RNA_struct_find_property(op->ptr, "snap_elements")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
t->tsnap.mode = eSnapMode(RNA_property_enum_get(op->ptr, prop));
|
||
}
|
||
|
||
/* TODO(@gfxcoder): Rename `snap_target` to `snap_source` to avoid previous ambiguity of
|
||
* "target" (now, "source" is geometry to be moved and "target" is geometry to which moved
|
||
* geometry is snapped). */
|
||
if ((prop = RNA_struct_find_property(op->ptr, "snap_target")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
snap_source = eSnapSourceOP(RNA_property_enum_get(op->ptr, prop));
|
||
}
|
||
|
||
if ((prop = RNA_struct_find_property(op->ptr, "snap_point")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
RNA_property_float_get_array(op->ptr, prop, t->tsnap.snap_target);
|
||
t->modifiers |= MOD_SNAP_FORCED;
|
||
t->tsnap.status |= SNAP_TARGET_FOUND;
|
||
}
|
||
|
||
/* Snap align only defined in specific cases. */
|
||
if ((prop = RNA_struct_find_property(op->ptr, "snap_align")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
SET_FLAG_FROM_TEST(t->tsnap.flag, RNA_property_boolean_get(op->ptr, prop), SCE_SNAP_ROTATE);
|
||
|
||
RNA_float_get_array(op->ptr, "snap_normal", t->tsnap.snapNormal);
|
||
normalize_v3(t->tsnap.snapNormal);
|
||
}
|
||
|
||
if ((prop = RNA_struct_find_property(op->ptr, "use_snap_project")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
SET_FLAG_FROM_TEST(
|
||
t->tsnap.mode, RNA_property_boolean_get(op->ptr, prop), SCE_SNAP_INDIVIDUAL_PROJECT);
|
||
}
|
||
|
||
/* Use_snap_self is misnamed and should be use_snap_active. */
|
||
if ((prop = RNA_struct_find_property(op->ptr, "use_snap_self")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
SET_FLAG_FROM_TEST(t->tsnap.target_operation,
|
||
!RNA_property_boolean_get(op->ptr, prop),
|
||
SCE_SNAP_TARGET_NOT_ACTIVE);
|
||
}
|
||
|
||
if ((prop = RNA_struct_find_property(op->ptr, "use_snap_edit")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
SET_FLAG_FROM_TEST(t->tsnap.target_operation,
|
||
!RNA_property_boolean_get(op->ptr, prop),
|
||
SCE_SNAP_TARGET_NOT_EDITED);
|
||
}
|
||
|
||
if ((prop = RNA_struct_find_property(op->ptr, "use_snap_nonedit")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
SET_FLAG_FROM_TEST(t->tsnap.target_operation,
|
||
!RNA_property_boolean_get(op->ptr, prop),
|
||
SCE_SNAP_TARGET_NOT_NONEDITED);
|
||
}
|
||
|
||
if ((prop = RNA_struct_find_property(op->ptr, "use_snap_selectable")) &&
|
||
RNA_property_is_set(op->ptr, prop))
|
||
{
|
||
SET_FLAG_FROM_TEST(t->tsnap.target_operation,
|
||
RNA_property_boolean_get(op->ptr, prop),
|
||
SCE_SNAP_TARGET_ONLY_SELECTABLE);
|
||
}
|
||
}
|
||
|
||
t->tsnap.source_operation = snap_source;
|
||
transform_snap_flag_from_modifiers_set(t);
|
||
}
|
||
|
||
void initSnapping(TransInfo *t, wmOperator *op)
|
||
{
|
||
transform_snap_reset_from_mode(t, op);
|
||
transform_snap_grid_init(t, t->snap_spatial, &t->snap_spatial_precision);
|
||
setSnappingCallback(t);
|
||
|
||
if (t->spacetype == SPACE_VIEW3D) {
|
||
if (t->tsnap.object_context == nullptr) {
|
||
SET_FLAG_FROM_TEST(t->tsnap.flag, snap_use_backface_culling(t), SCE_SNAP_BACKFACE_CULLING);
|
||
t->tsnap.object_context = snap_object_context_create(t->scene, 0);
|
||
snap_object_context_init(t);
|
||
}
|
||
}
|
||
else if (t->spacetype == SPACE_SEQ) {
|
||
if (t->tsnap.seq_context == nullptr) {
|
||
t->tsnap.seq_context = snap_sequencer_data_alloc(t);
|
||
}
|
||
}
|
||
|
||
/* Default increment values. */
|
||
t->increment = float3(1.0f);
|
||
t->increment_precision = 0.1f;
|
||
}
|
||
|
||
void freeSnapping(TransInfo *t)
|
||
{
|
||
if ((t->spacetype == SPACE_SEQ) && t->tsnap.seq_context) {
|
||
snap_sequencer_data_free(t->tsnap.seq_context);
|
||
t->tsnap.seq_context = nullptr;
|
||
}
|
||
else if (t->tsnap.object_context) {
|
||
blender::ed::transform::snap_object_context_destroy(t->tsnap.object_context);
|
||
t->tsnap.object_context = nullptr;
|
||
|
||
ED_transform_snap_object_time_average_print();
|
||
}
|
||
}
|
||
|
||
void initSnapAngleIncrements(TransInfo *t)
|
||
{
|
||
/* The final value of increment with precision is `t->increment[0] * t->increment_precision`.
|
||
* Therefore, we divide `snap_angle_increment_*_precision` by `snap_angle_increment_*`
|
||
* to compute `increment_precision`. */
|
||
float increment;
|
||
float increment_precision;
|
||
if (t->spacetype == SPACE_VIEW3D) {
|
||
increment = t->settings->snap_angle_increment_3d;
|
||
increment_precision = t->settings->snap_angle_increment_3d_precision;
|
||
}
|
||
else {
|
||
increment = t->settings->snap_angle_increment_2d;
|
||
increment_precision = t->settings->snap_angle_increment_2d_precision;
|
||
}
|
||
|
||
t->increment[0] = increment;
|
||
if (increment != 0.0f) {
|
||
t->increment_precision = float(double(increment_precision) / double(increment));
|
||
}
|
||
else {
|
||
t->increment_precision = 1.0f;
|
||
}
|
||
}
|
||
|
||
static void setSnappingCallback(TransInfo *t)
|
||
{
|
||
if (t->spacetype == SPACE_VIEW3D) {
|
||
if (t->options & CTX_CAMERA) {
|
||
/* Not with camera selected in camera view. */
|
||
return;
|
||
}
|
||
t->tsnap.snap_target_fn = snap_target_view3d_fn;
|
||
}
|
||
else if (t->spacetype == SPACE_IMAGE) {
|
||
SpaceImage *sima = static_cast<SpaceImage *>(t->area->spacedata.first);
|
||
BKE_view_layer_synced_ensure(t->scene, t->view_layer);
|
||
Object *obact = BKE_view_layer_active_object_get(t->view_layer);
|
||
|
||
const bool is_uv_editor = sima->mode == SI_MODE_UV;
|
||
const bool has_edit_object = obact && BKE_object_is_in_editmode(obact);
|
||
if (is_uv_editor && has_edit_object) {
|
||
t->tsnap.snap_target_fn = snap_target_uv_fn;
|
||
}
|
||
}
|
||
else if (t->spacetype == SPACE_NODE) {
|
||
/* Pass. */
|
||
}
|
||
else if (t->spacetype == SPACE_SEQ) {
|
||
t->tsnap.snap_target_fn = snap_target_sequencer_fn;
|
||
/* The target is calculated along with the snap point. */
|
||
return;
|
||
}
|
||
else if (t->spacetype == SPACE_NLA) {
|
||
t->tsnap.snap_target_fn = snap_target_nla_fn;
|
||
/* The target is calculated along with the snap point. */
|
||
return;
|
||
}
|
||
else {
|
||
return;
|
||
}
|
||
|
||
switch (t->tsnap.source_operation) {
|
||
case SCE_SNAP_SOURCE_CLOSEST:
|
||
t->tsnap.snap_source_fn = snap_source_closest_fn;
|
||
break;
|
||
case SCE_SNAP_SOURCE_CENTER:
|
||
if (!ELEM(t->mode, TFM_ROTATION, TFM_RESIZE)) {
|
||
t->tsnap.snap_source_fn = snap_source_center_fn;
|
||
break;
|
||
}
|
||
/* Can't do TARGET_CENTER with these modes,
|
||
* use TARGET_MEDIAN instead. */
|
||
ATTR_FALLTHROUGH;
|
||
case SCE_SNAP_SOURCE_MEDIAN:
|
||
t->tsnap.snap_source_fn = snap_source_median_fn;
|
||
break;
|
||
case SCE_SNAP_SOURCE_ACTIVE:
|
||
t->tsnap.snap_source_fn = snap_source_active_fn;
|
||
|
||
/* XXX, workaround: active needs to be calculated before transforming, otherwise
|
||
* `t->tsnap.snap_source` will be calculated with the transformed data since we're not
|
||
* reading from 'td->center' in this case. (See: #40241 and #40348). */
|
||
snap_source_active_fn(t);
|
||
break;
|
||
}
|
||
}
|
||
|
||
void addSnapPoint(TransInfo *t)
|
||
{
|
||
/* Currently only 3D viewport works for snapping points. */
|
||
if (t->tsnap.status & SNAP_TARGET_FOUND && t->spacetype == SPACE_VIEW3D) {
|
||
TransSnapPoint *p = MEM_callocN<TransSnapPoint>("SnapPoint");
|
||
|
||
t->tsnap.selectedPoint = p;
|
||
|
||
copy_v3_v3(p->co, t->tsnap.snap_target);
|
||
|
||
BLI_addtail(&t->tsnap.points, p);
|
||
|
||
t->tsnap.status |= SNAP_MULTI_POINTS;
|
||
}
|
||
}
|
||
|
||
eRedrawFlag updateSelectedSnapPoint(TransInfo *t)
|
||
{
|
||
eRedrawFlag status = TREDRAW_NOTHING;
|
||
|
||
if (t->tsnap.status & SNAP_MULTI_POINTS) {
|
||
TransSnapPoint *closest_p = nullptr;
|
||
float dist_min_sq = TRANSFORM_SNAP_MAX_PX;
|
||
float screen_loc[2];
|
||
|
||
LISTBASE_FOREACH (TransSnapPoint *, p, &t->tsnap.points) {
|
||
float dist_sq;
|
||
|
||
if (ED_view3d_project_float_global(t->region, p->co, screen_loc, V3D_PROJ_TEST_NOP) !=
|
||
V3D_PROJ_RET_OK)
|
||
{
|
||
continue;
|
||
}
|
||
|
||
dist_sq = len_squared_v2v2(t->mval, screen_loc);
|
||
|
||
if (dist_sq < dist_min_sq) {
|
||
closest_p = p;
|
||
dist_min_sq = dist_sq;
|
||
}
|
||
}
|
||
|
||
if (closest_p) {
|
||
if (t->tsnap.selectedPoint != closest_p) {
|
||
status = TREDRAW_HARD;
|
||
}
|
||
|
||
t->tsnap.selectedPoint = closest_p;
|
||
}
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
void removeSnapPoint(TransInfo *t)
|
||
{
|
||
if (t->tsnap.status & SNAP_MULTI_POINTS) {
|
||
updateSelectedSnapPoint(t);
|
||
|
||
if (t->tsnap.selectedPoint) {
|
||
BLI_freelinkN(&t->tsnap.points, t->tsnap.selectedPoint);
|
||
|
||
if (BLI_listbase_is_empty(&t->tsnap.points)) {
|
||
t->tsnap.status &= ~SNAP_MULTI_POINTS;
|
||
}
|
||
|
||
t->tsnap.selectedPoint = nullptr;
|
||
}
|
||
}
|
||
}
|
||
|
||
void getSnapPoint(const TransInfo *t, float vec[3])
|
||
{
|
||
if (t->tsnap.points.first) {
|
||
TransSnapPoint *p;
|
||
int total = 0;
|
||
|
||
vec[0] = vec[1] = vec[2] = 0;
|
||
|
||
for (p = static_cast<TransSnapPoint *>(t->tsnap.points.first); p; p = p->next, total++) {
|
||
add_v3_v3(vec, p->co);
|
||
}
|
||
|
||
if (t->tsnap.status & SNAP_TARGET_FOUND) {
|
||
add_v3_v3(vec, t->tsnap.snap_target);
|
||
total++;
|
||
}
|
||
|
||
mul_v3_fl(vec, 1.0f / total);
|
||
}
|
||
else {
|
||
copy_v3_v3(vec, t->tsnap.snap_target);
|
||
}
|
||
}
|
||
|
||
static void snap_multipoints_free(TransInfo *t)
|
||
{
|
||
if (t->tsnap.status & SNAP_MULTI_POINTS) {
|
||
BLI_freelistN(&t->tsnap.points);
|
||
t->tsnap.status &= ~SNAP_MULTI_POINTS;
|
||
t->tsnap.selectedPoint = nullptr;
|
||
}
|
||
}
|
||
|
||
/** \} */
|
||
|
||
/* -------------------------------------------------------------------- */
|
||
/** \name Calc Snap
|
||
* \{ */
|
||
|
||
static void snap_grid_uv_apply(TransInfo *t, const float grid_dist[2], float r_out[2])
|
||
{
|
||
float3 in;
|
||
convertViewVec(t, in, t->mval[0] - t->center2d[0], t->mval[1] - t->center2d[1]);
|
||
|
||
if (t->con.mode & CON_APPLY) {
|
||
/* We need to clear the previous Snap to Grid result,
|
||
* otherwise #t->con.applyVec will have no effect. */
|
||
t->tsnap.target_type = SCE_SNAP_TO_NONE;
|
||
t->tsnap.status &= ~SNAP_TARGET_FOUND;
|
||
transform_constraint_get_nearest(t, in, in);
|
||
}
|
||
|
||
const float *center_global = t->center_global;
|
||
for (int i = 0; i < 2; i++) {
|
||
const float iter_fac = grid_dist[i];
|
||
r_out[i] = iter_fac * roundf((in[i] + center_global[i]) / iter_fac);
|
||
}
|
||
}
|
||
|
||
static bool snap_grid_uv(TransInfo *t, float r_val[2])
|
||
{
|
||
float grid_dist[2];
|
||
mul_v2_v2v2(grid_dist, t->snap_spatial, t->aspect);
|
||
if (t->modifiers & MOD_PRECISION) {
|
||
mul_v2_fl(grid_dist, t->snap_spatial_precision);
|
||
}
|
||
|
||
/* Early bailing out if no need to snap */
|
||
if (is_zero_v2(grid_dist)) {
|
||
return false;
|
||
}
|
||
|
||
snap_grid_uv_apply(t, grid_dist, r_val);
|
||
t->tsnap.target_type = SCE_SNAP_TO_GRID;
|
||
return true;
|
||
}
|
||
|
||
/** \} */
|
||
|
||
/* -------------------------------------------------------------------- */
|
||
/** \name Calc Snap
|
||
* \{ */
|
||
|
||
static void snap_target_view3d_fn(TransInfo *t, float * /*vec*/)
|
||
{
|
||
BLI_assert(t->spacetype == SPACE_VIEW3D);
|
||
float loc[3];
|
||
float no[3];
|
||
bool found = false;
|
||
eSnapMode snap_elem = SCE_SNAP_TO_NONE;
|
||
float dist_px = SNAP_MIN_DISTANCE; /* Use a user defined value here. */
|
||
|
||
if (t->tsnap.mode & (SCE_SNAP_TO_GEOM | SCE_SNAP_TO_GRID)) {
|
||
zero_v3(no); /* objects won't set this */
|
||
snap_elem = snapObjectsTransform(t, t->mval, &dist_px, loc, no);
|
||
found = (snap_elem != SCE_SNAP_TO_NONE);
|
||
}
|
||
if ((found == false) && (t->tsnap.mode & SCE_SNAP_TO_VOLUME)) {
|
||
bool use_peel = (t->settings->snap_flag & SCE_SNAP_PEEL_OBJECT) != 0;
|
||
found = peelObjectsTransform(t, t->mval, use_peel, loc, no, nullptr);
|
||
|
||
if (found) {
|
||
snap_elem = SCE_SNAP_TO_VOLUME;
|
||
}
|
||
}
|
||
|
||
if (found == true) {
|
||
copy_v3_v3(t->tsnap.snap_target, loc);
|
||
copy_v3_v3(t->tsnap.snapNormal, no);
|
||
|
||
t->tsnap.status |= SNAP_TARGET_FOUND;
|
||
|
||
if (snap_elem == SCE_SNAP_TO_GRID && t->mode_info != &TransMode_translate) {
|
||
/* Change it to #SCE_SNAP_TO_POINT so we can see the symbol for other modes. */
|
||
snap_elem = SCE_SNAP_TO_POINT;
|
||
}
|
||
}
|
||
else {
|
||
t->tsnap.status &= ~SNAP_TARGET_FOUND;
|
||
}
|
||
|
||
t->tsnap.target_type = snap_elem;
|
||
}
|
||
|
||
static void snap_target_uv_fn(TransInfo *t, float * /*vec*/)
|
||
{
|
||
BLI_assert(t->spacetype == SPACE_IMAGE);
|
||
bool found = false;
|
||
if (t->tsnap.mode & SCE_SNAP_TO_VERTEX) {
|
||
const Vector<Object *> objects =
|
||
BKE_view_layer_array_from_objects_in_edit_mode_unique_data_with_uvs(
|
||
t->scene, t->view_layer, nullptr);
|
||
|
||
float dist_sq = square_f(float(SNAP_MIN_DISTANCE));
|
||
if (ED_uvedit_nearest_uv_multi(&t->region->v2d,
|
||
t->scene,
|
||
objects,
|
||
t->mval,
|
||
t->tsnap.target_operation & SCE_SNAP_TARGET_NOT_SELECTED,
|
||
&dist_sq,
|
||
t->tsnap.snap_target))
|
||
{
|
||
t->tsnap.snap_target[0] *= t->aspect[0];
|
||
t->tsnap.snap_target[1] *= t->aspect[1];
|
||
t->tsnap.target_type = SCE_SNAP_TO_EDGE_ENDPOINT;
|
||
found = true;
|
||
}
|
||
}
|
||
|
||
if (!found && (t->tsnap.mode & SCE_SNAP_TO_GRID)) {
|
||
found = snap_grid_uv(t, t->tsnap.snap_target);
|
||
}
|
||
|
||
SET_FLAG_FROM_TEST(t->tsnap.status, found, SNAP_TARGET_FOUND);
|
||
}
|
||
|
||
static void snap_target_sequencer_fn(TransInfo *t, float * /*vec*/)
|
||
{
|
||
BLI_assert(t->spacetype == SPACE_SEQ);
|
||
if (snap_sequencer_calc(t)) {
|
||
t->tsnap.status |= (SNAP_TARGET_FOUND | SNAP_SOURCE_FOUND);
|
||
}
|
||
else {
|
||
t->tsnap.status &= ~(SNAP_TARGET_FOUND | SNAP_SOURCE_FOUND);
|
||
}
|
||
}
|
||
|
||
static void snap_target_nla_fn(TransInfo *t, float *vec)
|
||
{
|
||
BLI_assert(t->spacetype == SPACE_NLA);
|
||
if (transform_snap_nla_calc(t, vec)) {
|
||
t->tsnap.status |= (SNAP_TARGET_FOUND | SNAP_SOURCE_FOUND);
|
||
}
|
||
else {
|
||
t->tsnap.status &= ~(SNAP_TARGET_FOUND | SNAP_SOURCE_FOUND);
|
||
}
|
||
}
|
||
|
||
/** \} */
|
||
|
||
/* -------------------------------------------------------------------- */
|
||
/** \name Target
|
||
* \{ */
|
||
|
||
void tranform_snap_target_median_calc(const TransInfo *t, float r_median[3])
|
||
{
|
||
int i_accum = 0;
|
||
|
||
zero_v3(r_median);
|
||
|
||
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
|
||
float v[3];
|
||
zero_v3(v);
|
||
|
||
tc->foreach_index_selected([&](const int i) { add_v3_v3(v, tc->data[i].center); });
|
||
|
||
if (tc->data_len == 0) {
|
||
/* Is this possible? */
|
||
continue;
|
||
}
|
||
|
||
mul_v3_fl(v, 1.0 / tc->data_len);
|
||
|
||
if (tc->use_local_mat) {
|
||
mul_m4_v3(tc->mat, v);
|
||
}
|
||
|
||
add_v3_v3(r_median, v);
|
||
i_accum++;
|
||
}
|
||
|
||
mul_v3_fl(r_median, 1.0 / i_accum);
|
||
}
|
||
|
||
static void snap_source_center_fn(TransInfo *t)
|
||
{
|
||
/* Only need to calculate once. */
|
||
if ((t->tsnap.status & SNAP_SOURCE_FOUND) == 0) {
|
||
copy_v3_v3(t->tsnap.snap_source, t->center_global);
|
||
|
||
t->tsnap.status |= SNAP_SOURCE_FOUND;
|
||
t->tsnap.source_type = SCE_SNAP_TO_NONE;
|
||
}
|
||
}
|
||
|
||
static void snap_source_active_fn(TransInfo *t)
|
||
{
|
||
/* Only need to calculate once. */
|
||
if ((t->tsnap.status & SNAP_SOURCE_FOUND) == 0) {
|
||
if (calculateCenterActive(t, true, t->tsnap.snap_source)) {
|
||
t->tsnap.status |= SNAP_SOURCE_FOUND;
|
||
t->tsnap.source_type = SCE_SNAP_TO_NONE;
|
||
}
|
||
else {
|
||
/* No active, default to median, */
|
||
t->tsnap.source_operation = SCE_SNAP_SOURCE_MEDIAN;
|
||
t->tsnap.snap_source_fn = snap_source_median_fn;
|
||
snap_source_median_fn(t);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void snap_source_median_fn(TransInfo *t)
|
||
{
|
||
/* Only need to calculate once. */
|
||
if ((t->tsnap.status & SNAP_SOURCE_FOUND) == 0) {
|
||
tranform_snap_target_median_calc(t, t->tsnap.snap_source);
|
||
t->tsnap.status |= SNAP_SOURCE_FOUND;
|
||
t->tsnap.source_type = SCE_SNAP_TO_NONE;
|
||
}
|
||
}
|
||
|
||
static void snap_source_closest_fn(TransInfo *t)
|
||
{
|
||
/* Only valid if a snap point has been selected. */
|
||
if (!(t->tsnap.status & SNAP_TARGET_FOUND)) {
|
||
return;
|
||
}
|
||
|
||
if (t->tsnap.target_type == SCE_SNAP_TO_GRID) {
|
||
/* Previously Snap to Grid had its own snap source which was always the result of
|
||
* #snap_source_median_fn. Now this mode shares the same code, so to not change the behavior
|
||
* too much when using Closest, use the transform pivot as the snap source in this case. */
|
||
if (t->tsnap.source_type != SCE_SNAP_TO_POINT) {
|
||
tranform_snap_target_median_calc(t, t->tsnap.snap_source);
|
||
/* Use #SCE_SNAP_TO_POINT to differentiate from 'Closest' bounds and thus avoid recalculating
|
||
* the median center. */
|
||
t->tsnap.source_type = SCE_SNAP_TO_POINT;
|
||
}
|
||
}
|
||
else {
|
||
float dist_closest = 0.0f;
|
||
TransData *closest = nullptr;
|
||
|
||
/* Object mode. */
|
||
if (t->options & CTX_OBJECT) {
|
||
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
|
||
tc->foreach_index_selected([&](const int i) {
|
||
TransData *td = &tc->data[i];
|
||
|
||
std::optional<Bounds<float3>> bounds;
|
||
|
||
if ((t->options & CTX_OBMODE_XFORM_OBDATA) == 0) {
|
||
Object *ob = static_cast<Object *>(td->extra);
|
||
bounds = BKE_object_boundbox_eval_cached_get(ob);
|
||
}
|
||
|
||
/* Use bound-box if possible. */
|
||
if (bounds) {
|
||
TransDataExtension *td_ext = &tc->data_ext[i];
|
||
const std::array<float3, 8> bounds_corners = bounds::corners(*bounds);
|
||
int j;
|
||
|
||
for (j = 0; j < 8; j++) {
|
||
float loc[3];
|
||
float dist;
|
||
|
||
copy_v3_v3(loc, bounds_corners[j]);
|
||
mul_m4_v3(td_ext->obmat, loc);
|
||
|
||
dist = t->mode_info->snap_distance_fn(t, loc, t->tsnap.snap_target);
|
||
|
||
if ((dist != TRANSFORM_DIST_INVALID) &&
|
||
(closest == nullptr || fabsf(dist) < fabsf(dist_closest)))
|
||
{
|
||
copy_v3_v3(t->tsnap.snap_source, loc);
|
||
closest = td;
|
||
dist_closest = dist;
|
||
}
|
||
}
|
||
}
|
||
/* Use element center otherwise. */
|
||
else {
|
||
float loc[3];
|
||
float dist;
|
||
|
||
copy_v3_v3(loc, td->center);
|
||
|
||
dist = t->mode_info->snap_distance_fn(t, loc, t->tsnap.snap_target);
|
||
|
||
if ((dist != TRANSFORM_DIST_INVALID) &&
|
||
(closest == nullptr || fabsf(dist) < fabsf(dist_closest)))
|
||
{
|
||
copy_v3_v3(t->tsnap.snap_source, loc);
|
||
closest = td;
|
||
}
|
||
}
|
||
});
|
||
}
|
||
}
|
||
else {
|
||
FOREACH_TRANS_DATA_CONTAINER (t, tc) {
|
||
tc->foreach_index_selected([&](const int i) {
|
||
TransData *td = &tc->data[i];
|
||
|
||
float loc[3];
|
||
float dist;
|
||
|
||
copy_v3_v3(loc, td->center);
|
||
|
||
if (tc->use_local_mat) {
|
||
mul_m4_v3(tc->mat, loc);
|
||
}
|
||
|
||
dist = t->mode_info->snap_distance_fn(t, loc, t->tsnap.snap_target);
|
||
|
||
if ((dist != TRANSFORM_DIST_INVALID) &&
|
||
(closest == nullptr || fabsf(dist) < fabsf(dist_closest)))
|
||
{
|
||
copy_v3_v3(t->tsnap.snap_source, loc);
|
||
closest = td;
|
||
dist_closest = dist;
|
||
}
|
||
});
|
||
}
|
||
}
|
||
}
|
||
|
||
t->tsnap.status |= SNAP_SOURCE_FOUND;
|
||
}
|
||
|
||
/** \} */
|
||
|
||
/* -------------------------------------------------------------------- */
|
||
/** \name Snap Objects
|
||
* \{ */
|
||
|
||
static eSnapMode snapObjectsTransform(
|
||
TransInfo *t, const float mval[2], float *dist_px, float r_loc[3], float r_no[3])
|
||
{
|
||
SnapObjectParams snap_object_params{};
|
||
snap_object_params.snap_target_select = t->tsnap.target_operation;
|
||
snap_object_params.grid_size = (t->modifiers & MOD_PRECISION) ?
|
||
t->snap_spatial[0] * t->snap_spatial_precision :
|
||
t->snap_spatial[0];
|
||
snap_object_params.edit_mode_type = (t->flag & T_EDIT) != 0 ? SNAP_GEOM_EDIT : SNAP_GEOM_FINAL;
|
||
snap_object_params.occlusion_test = SNAP_OCCLUSION_AS_SEEM;
|
||
snap_object_params.use_backface_culling = (t->tsnap.flag & SCE_SNAP_BACKFACE_CULLING) != 0;
|
||
|
||
float *prev_co = (t->tsnap.status & SNAP_SOURCE_FOUND) ? t->tsnap.snap_source : t->center_global;
|
||
float *grid_co = nullptr, grid_co_stack[3];
|
||
if ((t->tsnap.mode & SCE_SNAP_TO_GRID) && (t->con.mode & CON_APPLY) && t->mode != TFM_ROTATION) {
|
||
/* Without this position adjustment, the snap may be far from the expected constraint point. */
|
||
grid_co = grid_co_stack;
|
||
convertViewVec(t, grid_co, mval[0] - t->center2d[0], mval[1] - t->center2d[1]);
|
||
t->tsnap.status &= ~SNAP_TARGET_FOUND;
|
||
transform_constraint_get_nearest(t, grid_co, grid_co);
|
||
add_v3_v3(grid_co, t->center_global);
|
||
}
|
||
|
||
return blender::ed::transform::snap_object_project_view3d(t->tsnap.object_context,
|
||
t->depsgraph,
|
||
t->region,
|
||
static_cast<const View3D *>(t->view),
|
||
t->tsnap.mode,
|
||
&snap_object_params,
|
||
grid_co,
|
||
mval,
|
||
prev_co,
|
||
dist_px,
|
||
r_loc,
|
||
r_no);
|
||
}
|
||
|
||
/** \} */
|
||
|
||
/* -------------------------------------------------------------------- */
|
||
/** \name Peeling
|
||
* \{ */
|
||
|
||
bool peelObjectsTransform(TransInfo *t,
|
||
const float mval[2],
|
||
const bool use_peel_object,
|
||
/* Return args. */
|
||
float r_loc[3],
|
||
float r_no[3],
|
||
float *r_thickness)
|
||
{
|
||
SnapObjectParams snap_object_params{};
|
||
snap_object_params.snap_target_select = t->tsnap.target_operation;
|
||
snap_object_params.edit_mode_type = (t->flag & T_EDIT) != 0 ? SNAP_GEOM_EDIT : SNAP_GEOM_FINAL;
|
||
|
||
ListBase depths_peel = {nullptr};
|
||
blender::ed::transform::object_project_all_view3d_ex(t->tsnap.object_context,
|
||
t->depsgraph,
|
||
t->region,
|
||
static_cast<const View3D *>(t->view),
|
||
&snap_object_params,
|
||
mval,
|
||
-1.0f,
|
||
false,
|
||
&depths_peel);
|
||
|
||
if (!BLI_listbase_is_empty(&depths_peel)) {
|
||
/* At the moment we only use the hits of the first object. */
|
||
SnapObjectHitDepth *hit_min = static_cast<SnapObjectHitDepth *>(depths_peel.first);
|
||
for (SnapObjectHitDepth *iter = hit_min->next; iter; iter = iter->next) {
|
||
if (iter->depth < hit_min->depth) {
|
||
hit_min = iter;
|
||
}
|
||
}
|
||
SnapObjectHitDepth *hit_max = nullptr;
|
||
|
||
if (use_peel_object) {
|
||
/* If peeling objects, take the first and last from each object. */
|
||
hit_max = hit_min;
|
||
LISTBASE_FOREACH (SnapObjectHitDepth *, iter, &depths_peel) {
|
||
if ((iter->depth > hit_max->depth) && (iter->ob_uuid == hit_min->ob_uuid)) {
|
||
hit_max = iter;
|
||
}
|
||
}
|
||
}
|
||
else {
|
||
/* Otherwise, pair first with second and so on. */
|
||
LISTBASE_FOREACH (SnapObjectHitDepth *, iter, &depths_peel) {
|
||
if ((iter != hit_min) && (iter->ob_uuid == hit_min->ob_uuid)) {
|
||
if (hit_max == nullptr) {
|
||
hit_max = iter;
|
||
}
|
||
else if (iter->depth < hit_max->depth) {
|
||
hit_max = iter;
|
||
}
|
||
}
|
||
}
|
||
/* In this case has only one hit. treat as ray-cast. */
|
||
if (hit_max == nullptr) {
|
||
hit_max = hit_min;
|
||
}
|
||
}
|
||
|
||
mid_v3_v3v3(r_loc, hit_min->co, hit_max->co);
|
||
|
||
if (r_thickness) {
|
||
*r_thickness = hit_max->depth - hit_min->depth;
|
||
}
|
||
|
||
/* XXX, is there a correct normal in this case ???, for now just z up. */
|
||
r_no[0] = 0.0;
|
||
r_no[1] = 0.0;
|
||
r_no[2] = 1.0;
|
||
|
||
LISTBASE_FOREACH_MUTABLE (SnapObjectHitDepth *, link, &depths_peel) {
|
||
MEM_delete(link);
|
||
}
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/** \} */
|
||
|
||
/* -------------------------------------------------------------------- */
|
||
/** \name snap Grid
|
||
* \{ */
|
||
|
||
static void snap_increment_apply(const TransInfo *t, const float loc[3], float r_out[3])
|
||
{
|
||
bool use_precision = (t->modifiers & MOD_PRECISION) != 0;
|
||
|
||
/* Relative snapping in fixed increments. */
|
||
for (int i = 0; i <= t->idx_max; i++) {
|
||
const float iter_fac = use_precision ? t->increment[i] * t->increment_precision :
|
||
t->increment[i];
|
||
if (iter_fac != 0.0f) {
|
||
r_out[i] = iter_fac * roundf(loc[i] / iter_fac);
|
||
}
|
||
}
|
||
}
|
||
|
||
bool transform_snap_increment_ex(const TransInfo *t, bool use_local_space, float *r_val)
|
||
{
|
||
if (!transform_snap_is_active(t)) {
|
||
return false;
|
||
}
|
||
|
||
if (t->spacetype == SPACE_SEQ) {
|
||
/* Sequencer has its own dedicated enum for snap_mode with increment snap bit overridden. */
|
||
return false;
|
||
}
|
||
|
||
if (!(t->tsnap.mode & SCE_SNAP_TO_INCREMENT)) {
|
||
return false;
|
||
}
|
||
|
||
if (t->spacetype != SPACE_VIEW3D && validSnap(t)) {
|
||
/* Only do something if using absolute or incremental grid snapping
|
||
* and there is no valid snap point. */
|
||
return false;
|
||
}
|
||
|
||
if (use_local_space) {
|
||
mul_m3_v3(t->spacemtx_inv, r_val);
|
||
}
|
||
|
||
snap_increment_apply(t, r_val, r_val);
|
||
|
||
if (use_local_space) {
|
||
mul_m3_v3(t->spacemtx, r_val);
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
bool transform_snap_increment(const TransInfo *t, float *r_val)
|
||
{
|
||
return transform_snap_increment_ex(t, false, r_val);
|
||
}
|
||
|
||
float transform_snap_increment_get(const TransInfo *t)
|
||
{
|
||
if (transform_snap_is_active(t) && (t->tsnap.mode & (SCE_SNAP_TO_INCREMENT | SCE_SNAP_TO_GRID)))
|
||
{
|
||
return (t->modifiers & MOD_PRECISION) ? t->increment[0] * t->increment_precision :
|
||
t->increment[0];
|
||
}
|
||
|
||
return 0.0f;
|
||
}
|
||
|
||
void tranform_snap_source_restore_context(TransInfo *t)
|
||
{
|
||
if (t->spacetype == SPACE_VIEW3D) {
|
||
snap_object_context_init(t);
|
||
}
|
||
snap_multipoints_free(t);
|
||
}
|
||
|
||
/** \} */
|
||
|
||
/* -------------------------------------------------------------------- */
|
||
/** \name Generic callbacks
|
||
* \{ */
|
||
|
||
float transform_snap_distance_len_squared_fn(TransInfo * /*t*/,
|
||
const float p1[3],
|
||
const float p2[3])
|
||
{
|
||
return len_squared_v3v3(p1, p2);
|
||
}
|
||
|
||
/** \} */
|
||
|
||
} // namespace blender::ed::transform
|