Campbell Barton
73fab5bb3f
Create snapping context when in the 3d view, transforming pose bones and grease-pencil crashed.
1878 lines
48 KiB
C
1878 lines
48 KiB
C
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): Martin Poirier
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file blender/editors/transform/transform_snap.c
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* \ingroup edtransform
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*/
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#include <stdlib.h>
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#include <math.h>
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#include <float.h>
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#include <stdio.h>
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#include "PIL_time.h"
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#include "DNA_scene_types.h"
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#include "DNA_object_types.h"
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#include "DNA_meshdata_types.h" /* Temporary, for snapping to other unselected meshes */
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#include "DNA_node_types.h"
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#include "DNA_space_types.h"
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#include "DNA_screen_types.h"
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#include "DNA_view3d_types.h"
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#include "DNA_windowmanager_types.h"
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#include "BLI_math.h"
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#include "BLI_blenlib.h"
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#include "BLI_utildefines.h"
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#include "BIF_gl.h"
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#include "BKE_DerivedMesh.h"
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#include "BKE_global.h"
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#include "BKE_object.h"
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#include "BKE_anim.h" /* for duplis */
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#include "BKE_context.h"
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#include "BKE_editmesh.h"
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#include "BKE_sequencer.h"
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#include "BKE_main.h"
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#include "RNA_access.h"
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#include "WM_types.h"
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#include "ED_image.h"
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#include "ED_node.h"
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#include "ED_uvedit.h"
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#include "ED_view3d.h"
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#include "ED_transform_snap_object_context.h"
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#include "UI_resources.h"
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#include "UI_view2d.h"
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#include "MEM_guardedalloc.h"
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#include "transform.h"
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/* this should be passed as an arg for use in snap functions */
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#undef BASACT
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/* use half of flt-max so we can scale up without an exception */
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/********************* PROTOTYPES ***********************/
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static void setSnappingCallback(TransInfo *t);
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static void ApplySnapTranslation(TransInfo *t, float vec[3]);
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static void ApplySnapRotation(TransInfo *t, float *vec);
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static void ApplySnapResize(TransInfo *t, float vec[2]);
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/* static void CalcSnapGrid(TransInfo *t, float *vec); */
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static void CalcSnapGeometry(TransInfo *t, float *vec);
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static void TargetSnapMedian(TransInfo *t);
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static void TargetSnapCenter(TransInfo *t);
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static void TargetSnapClosest(TransInfo *t);
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static void TargetSnapActive(TransInfo *t);
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static float RotationBetween(TransInfo *t, const float p1[3], const float p2[3]);
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static float TranslationBetween(TransInfo *t, const float p1[3], const float p2[3]);
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static float ResizeBetween(TransInfo *t, const float p1[3], const float p2[3]);
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/****************** IMPLEMENTATIONS *********************/
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static bool snapNodeTest(View2D *v2d, bNode *node, SnapSelect snap_select);
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static NodeBorder snapNodeBorder(int snap_node_mode);
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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 == NULL || ELEM(obedit->type, OB_MESH, OB_ARMATURE, OB_CURVE, OB_LATTICE, OB_MBALL)) {
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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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bool validSnap(TransInfo *t)
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{
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return (t->tsnap.status & (POINT_INIT | TARGET_INIT)) == (POINT_INIT | TARGET_INIT) ||
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(t->tsnap.status & (MULTI_POINTS | TARGET_INIT)) == (MULTI_POINTS | TARGET_INIT);
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}
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bool activeSnap(TransInfo *t)
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{
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return ((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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}
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void drawSnapping(const struct bContext *C, TransInfo *t)
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{
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unsigned char col[4], selectedCol[4], activeCol[4];
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if (!activeSnap(t))
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return;
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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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if (t->spacetype == SPACE_VIEW3D) {
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if (validSnap(t)) {
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TransSnapPoint *p;
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View3D *v3d = CTX_wm_view3d(C);
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RegionView3D *rv3d = CTX_wm_region_view3d(C);
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float imat[4][4];
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float size;
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glDisable(GL_DEPTH_TEST);
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size = 2.5f * UI_GetThemeValuef(TH_VERTEX_SIZE);
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invert_m4_m4(imat, rv3d->viewmat);
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for (p = t->tsnap.points.first; p; p = p->next) {
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if (p == t->tsnap.selectedPoint) {
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glColor4ubv(selectedCol);
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}
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else {
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glColor4ubv(col);
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}
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drawcircball(GL_LINE_LOOP, p->co, ED_view3d_pixel_size(rv3d, p->co) * size * 0.75f, imat);
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}
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if (t->tsnap.status & POINT_INIT) {
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glColor4ubv(activeCol);
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drawcircball(GL_LINE_LOOP, t->tsnap.snapPoint, ED_view3d_pixel_size(rv3d, t->tsnap.snapPoint) * size, imat);
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}
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/* draw normal if needed */
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if (usingSnappingNormal(t) && validSnappingNormal(t)) {
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glColor4ubv(activeCol);
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glBegin(GL_LINES);
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glVertex3f(t->tsnap.snapPoint[0], t->tsnap.snapPoint[1], t->tsnap.snapPoint[2]);
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glVertex3f(t->tsnap.snapPoint[0] + t->tsnap.snapNormal[0],
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t->tsnap.snapPoint[1] + t->tsnap.snapNormal[1],
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t->tsnap.snapPoint[2] + t->tsnap.snapNormal[2]);
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glEnd();
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}
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if (v3d->zbuf)
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glEnable(GL_DEPTH_TEST);
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}
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}
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else if (t->spacetype == SPACE_IMAGE) {
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if (validSnap(t)) {
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/* This will not draw, and Im nor sure why - campbell */
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#if 0
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float xuser_asp, yuser_asp;
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int wi, hi;
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float w, h;
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calc_image_view(G.sima, 'f'); // float
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myortho2(G.v2d->cur.xmin, G.v2d->cur.xmax, G.v2d->cur.ymin, G.v2d->cur.ymax);
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glLoadIdentity();
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ED_space_image_get_aspect(t->sa->spacedata.first, &xuser_aspx, &yuser_asp);
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ED_space_image_width(t->sa->spacedata.first, &wi, &hi);
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w = (((float)wi) / IMG_SIZE_FALLBACK) * G.sima->zoom * xuser_asp;
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h = (((float)hi) / IMG_SIZE_FALLBACK) * G.sima->zoom * yuser_asp;
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cpack(0xFFFFFF);
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glTranslate2fv(t->tsnap.snapPoint);
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//glRectf(0, 0, 1, 1);
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setlinestyle(0);
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cpack(0x0);
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fdrawline(-0.020 / w, 0, -0.1 / w, 0);
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fdrawline(0.1 / w, 0, 0.020 / w, 0);
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fdrawline(0, -0.020 / h, 0, -0.1 / h);
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fdrawline(0, 0.1 / h, 0, 0.020 / h);
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glTranslatef(-t->tsnap.snapPoint[0], -t->tsnap.snapPoint[1], 0.0f);
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setlinestyle(0);
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#endif
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}
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}
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else if (t->spacetype == SPACE_NODE) {
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if (validSnap(t)) {
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ARegion *ar = CTX_wm_region(C);
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TransSnapPoint *p;
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float size;
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size = 2.5f * UI_GetThemeValuef(TH_VERTEX_SIZE);
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glEnable(GL_BLEND);
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for (p = t->tsnap.points.first; p; p = p->next) {
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if (p == t->tsnap.selectedPoint) {
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glColor4ubv(selectedCol);
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}
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else {
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glColor4ubv(col);
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}
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ED_node_draw_snap(&ar->v2d, p->co, size, 0);
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}
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if (t->tsnap.status & POINT_INIT) {
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glColor4ubv(activeCol);
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ED_node_draw_snap(&ar->v2d, t->tsnap.snapPoint, size, t->tsnap.snapNodeBorder);
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}
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glDisable(GL_BLEND);
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}
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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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#if 0 // XXX need a proper selector for all snap mode
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if (BIF_snappingSupported(t->obedit) && event->type == TABKEY && event->shift) {
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/* toggle snap and reinit */
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t->settings->snap_flag ^= SCE_SNAP;
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initSnapping(t, NULL);
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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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return status;
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}
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void applyProject(TransInfo *t)
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{
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/* XXX FLICKER IN OBJECT MODE */
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if ((t->tsnap.project) && activeSnap(t) && (t->flag & T_NO_PROJECT) == 0) {
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TransData *td = t->data;
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float tvec[3];
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float imat[4][4];
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int i;
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if (t->flag & (T_EDIT | T_POSE)) {
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Object *ob = t->obedit ? t->obedit : t->poseobj;
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invert_m4_m4(imat, ob->obmat);
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}
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for (i = 0; i < t->total; i++, td++) {
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float iloc[3], loc[3], no[3];
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float mval_fl[2];
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float dist_px = TRANSFORM_DIST_MAX_PX;
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if (td->flag & TD_NOACTION)
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break;
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if (td->flag & TD_SKIP)
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continue;
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if ((t->flag & T_PROP_EDIT) && (td->factor == 0.0f))
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continue;
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copy_v3_v3(iloc, td->loc);
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if (t->flag & (T_EDIT | T_POSE)) {
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Object *ob = t->obedit ? t->obedit : t->poseobj;
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mul_m4_v3(ob->obmat, iloc);
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}
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else if (t->flag & T_OBJECT) {
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/* TODO(sergey): Ideally force update is not needed here. */
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td->ob->recalc |= OB_RECALC_OB | OB_RECALC_DATA | OB_RECALC_TIME;
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BKE_object_handle_update(G.main->eval_ctx, t->scene, td->ob);
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copy_v3_v3(iloc, td->ob->obmat[3]);
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}
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if (ED_view3d_project_float_global(t->ar, iloc, mval_fl, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {
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if (snapObjectsTransform(
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t, mval_fl, t->tsnap.modeSelect, &dist_px,
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loc, no))
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{
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// if (t->flag & (T_EDIT|T_POSE)) {
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// mul_m4_v3(imat, loc);
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// }
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sub_v3_v3v3(tvec, loc, iloc);
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mul_m3_v3(td->smtx, tvec);
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add_v3_v3(td->loc, tvec);
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if (t->tsnap.align && (t->flag & T_OBJECT)) {
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/* handle alignment as well */
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const float *original_normal;
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float mat[3][3];
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/* In pose mode, we want to align normals with Y axis of bones... */
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original_normal = td->axismtx[2];
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rotation_between_vecs_to_mat3(mat, original_normal, no);
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transform_data_ext_rotate(td, mat, true);
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/* TODO support constraints for rotation too? see ElementRotation */
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}
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}
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}
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//XXX constraintTransLim(t, td);
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}
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}
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}
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void applyGridAbsolute(TransInfo *t)
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{
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float grid_size = 0.0f;
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GearsType grid_action;
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TransData *td;
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float (*obmat)[4] = NULL;
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bool use_obmat = false;
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int i;
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if (!(activeSnap(t) && (ELEM(t->tsnap.mode, SCE_SNAP_MODE_INCREMENT, SCE_SNAP_MODE_GRID))))
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return;
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grid_action = BIG_GEARS;
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if (t->modifiers & MOD_PRECISION)
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grid_action = SMALL_GEARS;
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switch (grid_action) {
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case NO_GEARS: grid_size = t->snap_spatial[0]; break;
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case BIG_GEARS: grid_size = t->snap_spatial[1]; break;
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case SMALL_GEARS: grid_size = t->snap_spatial[2]; break;
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}
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/* early exit on unusable grid size */
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if (grid_size == 0.0f)
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return;
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if (t->flag & (T_EDIT | T_POSE)) {
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Object *ob = t->obedit ? t->obedit : t->poseobj;
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obmat = ob->obmat;
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use_obmat = true;
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}
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for (i = 0, td = t->data; i < t->total; i++, td++) {
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float iloc[3], loc[3], tvec[3];
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if (td->flag & TD_NOACTION)
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break;
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if (td->flag & TD_SKIP)
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continue;
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if ((t->flag & T_PROP_EDIT) && (td->factor == 0.0f))
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continue;
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copy_v3_v3(iloc, td->loc);
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if (use_obmat) {
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mul_m4_v3(obmat, iloc);
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}
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else if (t->flag & T_OBJECT) {
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td->ob->recalc |= OB_RECALC_OB | OB_RECALC_DATA | OB_RECALC_TIME;
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BKE_object_handle_update(G.main->eval_ctx, t->scene, td->ob);
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copy_v3_v3(iloc, td->ob->obmat[3]);
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}
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mul_v3_v3fl(loc, iloc, 1.0f / grid_size);
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loc[0] = roundf(loc[0]);
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loc[1] = roundf(loc[1]);
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loc[2] = roundf(loc[2]);
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mul_v3_fl(loc, grid_size);
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sub_v3_v3v3(tvec, loc, iloc);
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mul_m3_v3(td->smtx, tvec);
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add_v3_v3(td->loc, tvec);
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}
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}
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void applySnapping(TransInfo *t, float *vec)
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{
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/* project is not applied this way */
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if (t->tsnap.project)
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return;
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if (t->tsnap.status & SNAP_FORCED) {
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t->tsnap.targetSnap(t);
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t->tsnap.applySnap(t, vec);
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}
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else if (!ELEM(t->tsnap.mode, SCE_SNAP_MODE_INCREMENT, SCE_SNAP_MODE_GRID) && activeSnap(t)) {
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double current = PIL_check_seconds_timer();
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// Time base quirky code to go around findnearest slowness
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/* !TODO! add exception for object mode, no need to slow it down then */
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if (current - t->tsnap.last >= 0.01) {
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t->tsnap.calcSnap(t, vec);
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t->tsnap.targetSnap(t);
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t->tsnap.last = current;
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}
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if (validSnap(t)) {
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t->tsnap.applySnap(t, vec);
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}
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}
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}
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void resetSnapping(TransInfo *t)
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{
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t->tsnap.status = 0;
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t->tsnap.align = false;
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t->tsnap.project = 0;
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t->tsnap.mode = 0;
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t->tsnap.modeSelect = 0;
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t->tsnap.target = 0;
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t->tsnap.last = 0;
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t->tsnap.applySnap = NULL;
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t->tsnap.snapNormal[0] = 0;
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t->tsnap.snapNormal[1] = 0;
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t->tsnap.snapNormal[2] = 0;
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t->tsnap.snapNodeBorder = 0;
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}
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bool usingSnappingNormal(TransInfo *t)
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{
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return t->tsnap.align;
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}
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bool validSnappingNormal(TransInfo *t)
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{
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if (validSnap(t)) {
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if (!is_zero_v3(t->tsnap.snapNormal)) {
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return true;
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}
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}
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return false;
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}
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static bool bm_edge_is_snap_target(BMEdge *e, void *UNUSED(user_data))
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{
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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 *UNUSED(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;
|
|
}
|
|
|
|
static void initSnappingMode(TransInfo *t)
|
|
{
|
|
ToolSettings *ts = t->settings;
|
|
Object *obedit = t->obedit;
|
|
Scene *scene = t->scene;
|
|
Base *base_act = scene->basact;
|
|
|
|
if (t->spacetype == SPACE_NODE) {
|
|
/* force project off when not supported */
|
|
t->tsnap.project = 0;
|
|
|
|
t->tsnap.mode = ts->snap_node_mode;
|
|
}
|
|
else if (t->spacetype == SPACE_IMAGE) {
|
|
/* force project off when not supported */
|
|
t->tsnap.project = 0;
|
|
|
|
t->tsnap.mode = ts->snap_uv_mode;
|
|
}
|
|
else {
|
|
/* force project off when not supported */
|
|
if (ts->snap_mode != SCE_SNAP_MODE_FACE)
|
|
t->tsnap.project = 0;
|
|
|
|
t->tsnap.mode = ts->snap_mode;
|
|
}
|
|
|
|
if ((t->spacetype == SPACE_VIEW3D || t->spacetype == SPACE_IMAGE) && /* Only 3D view or UV */
|
|
(t->flag & T_CAMERA) == 0) /* Not with camera selected in camera view */
|
|
{
|
|
setSnappingCallback(t);
|
|
|
|
/* Edit mode */
|
|
if (t->tsnap.applySnap != NULL && // A snapping function actually exist
|
|
(obedit != NULL && ELEM(obedit->type, OB_MESH, OB_ARMATURE, OB_CURVE, OB_LATTICE, OB_MBALL)) ) // Temporary limited to edit mode meshes, armature, curves, mballs
|
|
{
|
|
/* Exclude editmesh if using proportional edit */
|
|
if ((obedit->type == OB_MESH) && (t->flag & T_PROP_EDIT)) {
|
|
t->tsnap.modeSelect = SNAP_NOT_OBEDIT;
|
|
}
|
|
else {
|
|
t->tsnap.modeSelect = t->tsnap.snap_self ? SNAP_ALL : SNAP_NOT_OBEDIT;
|
|
}
|
|
}
|
|
/* Particles edit mode*/
|
|
else if (t->tsnap.applySnap != NULL && // A snapping function actually exist
|
|
(obedit == NULL && base_act && base_act->object && base_act->object->mode & OB_MODE_PARTICLE_EDIT))
|
|
{
|
|
t->tsnap.modeSelect = SNAP_ALL;
|
|
}
|
|
/* Object mode */
|
|
else if (t->tsnap.applySnap != NULL && // A snapping function actually exist
|
|
(obedit == NULL) ) // Object Mode
|
|
{
|
|
t->tsnap.modeSelect = SNAP_NOT_SELECTED;
|
|
}
|
|
else {
|
|
/* Grid if snap is not possible */
|
|
t->tsnap.mode = SCE_SNAP_MODE_INCREMENT;
|
|
}
|
|
}
|
|
else if (t->spacetype == SPACE_NODE) {
|
|
setSnappingCallback(t);
|
|
|
|
if (t->tsnap.applySnap != NULL) {
|
|
t->tsnap.modeSelect = SNAP_NOT_SELECTED;
|
|
}
|
|
else {
|
|
/* Grid if snap is not possible */
|
|
t->tsnap.mode = SCE_SNAP_MODE_INCREMENT;
|
|
}
|
|
}
|
|
else if (t->spacetype == SPACE_SEQ) {
|
|
/* We do our own snapping currently, so nothing here */
|
|
t->tsnap.mode = SCE_SNAP_MODE_GRID; /* Dummy, should we rather add a NOP mode? */
|
|
}
|
|
else {
|
|
/* Always grid outside of 3D view */
|
|
t->tsnap.mode = SCE_SNAP_MODE_INCREMENT;
|
|
}
|
|
|
|
if (t->spacetype == SPACE_VIEW3D) {
|
|
if (t->tsnap.object_context == NULL) {
|
|
t->tsnap.object_context = ED_transform_snap_object_context_create_view3d(
|
|
G.main, t->scene, SNAP_OBJECT_USE_CACHE,
|
|
t->ar, t->view);
|
|
|
|
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,
|
|
SET_UINT_IN_POINTER((BM_ELEM_SELECT | BM_ELEM_HIDDEN)));
|
|
}
|
|
}
|
|
}
|
|
|
|
void initSnapping(TransInfo *t, wmOperator *op)
|
|
{
|
|
ToolSettings *ts = t->settings;
|
|
short snap_target = t->settings->snap_target;
|
|
|
|
resetSnapping(t);
|
|
|
|
/* if snap property exists */
|
|
if (op && RNA_struct_find_property(op->ptr, "snap") && RNA_struct_property_is_set(op->ptr, "snap")) {
|
|
if (RNA_boolean_get(op->ptr, "snap")) {
|
|
t->modifiers |= MOD_SNAP;
|
|
|
|
if (RNA_struct_property_is_set(op->ptr, "snap_target")) {
|
|
snap_target = RNA_enum_get(op->ptr, "snap_target");
|
|
}
|
|
|
|
if (RNA_struct_property_is_set(op->ptr, "snap_point")) {
|
|
RNA_float_get_array(op->ptr, "snap_point", t->tsnap.snapPoint);
|
|
t->tsnap.status |= SNAP_FORCED | POINT_INIT;
|
|
}
|
|
|
|
/* snap align only defined in specific cases */
|
|
if (RNA_struct_find_property(op->ptr, "snap_align")) {
|
|
t->tsnap.align = RNA_boolean_get(op->ptr, "snap_align");
|
|
RNA_float_get_array(op->ptr, "snap_normal", t->tsnap.snapNormal);
|
|
normalize_v3(t->tsnap.snapNormal);
|
|
}
|
|
|
|
if (RNA_struct_find_property(op->ptr, "use_snap_project")) {
|
|
t->tsnap.project = RNA_boolean_get(op->ptr, "use_snap_project");
|
|
}
|
|
|
|
if (RNA_struct_find_property(op->ptr, "use_snap_self")) {
|
|
t->tsnap.snap_self = RNA_boolean_get(op->ptr, "use_snap_self");
|
|
}
|
|
}
|
|
}
|
|
/* use scene defaults only when transform is modal */
|
|
else if (t->flag & T_MODAL) {
|
|
if (ELEM(t->spacetype, SPACE_VIEW3D, SPACE_IMAGE, SPACE_NODE)) {
|
|
if (ts->snap_flag & SCE_SNAP) {
|
|
t->modifiers |= MOD_SNAP;
|
|
}
|
|
|
|
t->tsnap.align = ((t->settings->snap_flag & SCE_SNAP_ROTATE) != 0);
|
|
t->tsnap.project = ((t->settings->snap_flag & SCE_SNAP_PROJECT) != 0);
|
|
t->tsnap.snap_self = !((t->settings->snap_flag & SCE_SNAP_NO_SELF) != 0);
|
|
t->tsnap.peel = ((t->settings->snap_flag & SCE_SNAP_PROJECT) != 0);
|
|
}
|
|
|
|
/* for now only 3d view (others can be added if we want) */
|
|
if (t->spacetype == SPACE_VIEW3D) {
|
|
t->tsnap.snap_spatial_grid = ((t->settings->snap_flag & SCE_SNAP_ABS_GRID) != 0);
|
|
}
|
|
}
|
|
|
|
t->tsnap.target = snap_target;
|
|
|
|
initSnappingMode(t);
|
|
}
|
|
|
|
void freeSnapping(TransInfo *t)
|
|
{
|
|
if (t->tsnap.object_context) {
|
|
ED_transform_snap_object_context_destroy(t->tsnap.object_context);
|
|
t->tsnap.object_context = NULL;
|
|
}
|
|
}
|
|
|
|
static void setSnappingCallback(TransInfo *t)
|
|
{
|
|
t->tsnap.calcSnap = CalcSnapGeometry;
|
|
|
|
switch (t->tsnap.target) {
|
|
case SCE_SNAP_TARGET_CLOSEST:
|
|
t->tsnap.targetSnap = TargetSnapClosest;
|
|
break;
|
|
case SCE_SNAP_TARGET_CENTER:
|
|
t->tsnap.targetSnap = TargetSnapCenter;
|
|
break;
|
|
case SCE_SNAP_TARGET_MEDIAN:
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
break;
|
|
case SCE_SNAP_TARGET_ACTIVE:
|
|
t->tsnap.targetSnap = TargetSnapActive;
|
|
break;
|
|
|
|
}
|
|
|
|
switch (t->mode) {
|
|
case TFM_TRANSLATION:
|
|
t->tsnap.applySnap = ApplySnapTranslation;
|
|
t->tsnap.distance = TranslationBetween;
|
|
break;
|
|
case TFM_ROTATION:
|
|
t->tsnap.applySnap = ApplySnapRotation;
|
|
t->tsnap.distance = RotationBetween;
|
|
|
|
// Can't do TARGET_CENTER with rotation, use TARGET_MEDIAN instead
|
|
if (t->tsnap.target == SCE_SNAP_TARGET_CENTER) {
|
|
t->tsnap.target = SCE_SNAP_TARGET_MEDIAN;
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
}
|
|
break;
|
|
case TFM_RESIZE:
|
|
t->tsnap.applySnap = ApplySnapResize;
|
|
t->tsnap.distance = ResizeBetween;
|
|
|
|
// Can't do TARGET_CENTER with resize, use TARGET_MEDIAN instead
|
|
if (t->tsnap.target == SCE_SNAP_TARGET_CENTER) {
|
|
t->tsnap.target = SCE_SNAP_TARGET_MEDIAN;
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
}
|
|
break;
|
|
default:
|
|
t->tsnap.applySnap = NULL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void addSnapPoint(TransInfo *t)
|
|
{
|
|
/* Currently only 3D viewport works for snapping points. */
|
|
if (t->tsnap.status & POINT_INIT && t->spacetype == SPACE_VIEW3D) {
|
|
TransSnapPoint *p = MEM_callocN(sizeof(TransSnapPoint), "SnapPoint");
|
|
|
|
t->tsnap.selectedPoint = p;
|
|
|
|
copy_v3_v3(p->co, t->tsnap.snapPoint);
|
|
|
|
BLI_addtail(&t->tsnap.points, p);
|
|
|
|
t->tsnap.status |= MULTI_POINTS;
|
|
}
|
|
}
|
|
|
|
eRedrawFlag updateSelectedSnapPoint(TransInfo *t)
|
|
{
|
|
eRedrawFlag status = TREDRAW_NOTHING;
|
|
|
|
if (t->tsnap.status & MULTI_POINTS) {
|
|
TransSnapPoint *p, *closest_p = NULL;
|
|
float dist_min_sq = TRANSFORM_SNAP_MAX_PX;
|
|
const float mval_fl[2] = {t->mval[0], t->mval[1]};
|
|
float screen_loc[2];
|
|
|
|
for (p = t->tsnap.points.first; p; p = p->next) {
|
|
float dist_sq;
|
|
|
|
if (ED_view3d_project_float_global(t->ar, p->co, screen_loc, V3D_PROJ_TEST_NOP) != V3D_PROJ_RET_OK) {
|
|
continue;
|
|
}
|
|
|
|
dist_sq = len_squared_v2v2(mval_fl, 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 & 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 &= ~MULTI_POINTS;
|
|
}
|
|
|
|
t->tsnap.selectedPoint = NULL;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
void getSnapPoint(TransInfo *t, float vec[3])
|
|
{
|
|
if (t->tsnap.points.first) {
|
|
TransSnapPoint *p;
|
|
int total = 0;
|
|
|
|
vec[0] = vec[1] = vec[2] = 0;
|
|
|
|
for (p = t->tsnap.points.first; p; p = p->next, total++) {
|
|
add_v3_v3(vec, p->co);
|
|
}
|
|
|
|
if (t->tsnap.status & POINT_INIT) {
|
|
add_v3_v3(vec, t->tsnap.snapPoint);
|
|
total++;
|
|
}
|
|
|
|
mul_v3_fl(vec, 1.0f / total);
|
|
}
|
|
else {
|
|
copy_v3_v3(vec, t->tsnap.snapPoint);
|
|
}
|
|
}
|
|
|
|
/********************** APPLY **************************/
|
|
|
|
static void ApplySnapTranslation(TransInfo *t, float vec[3])
|
|
{
|
|
float point[3];
|
|
getSnapPoint(t, point);
|
|
|
|
if (t->spacetype == SPACE_NODE) {
|
|
char border = t->tsnap.snapNodeBorder;
|
|
if (border & (NODE_LEFT | NODE_RIGHT))
|
|
vec[0] = point[0] - t->tsnap.snapTarget[0];
|
|
if (border & (NODE_BOTTOM | NODE_TOP))
|
|
vec[1] = point[1] - t->tsnap.snapTarget[1];
|
|
}
|
|
else {
|
|
sub_v3_v3v3(vec, point, t->tsnap.snapTarget);
|
|
}
|
|
}
|
|
|
|
static void ApplySnapRotation(TransInfo *t, float *value)
|
|
{
|
|
float point[3];
|
|
getSnapPoint(t, point);
|
|
|
|
float dist = RotationBetween(t, t->tsnap.snapTarget, point);
|
|
*value = dist;
|
|
}
|
|
|
|
static void ApplySnapResize(TransInfo *t, float vec[3])
|
|
{
|
|
float point[3];
|
|
getSnapPoint(t, point);
|
|
|
|
float dist = ResizeBetween(t, t->tsnap.snapTarget, point);
|
|
copy_v3_fl(vec, dist);
|
|
}
|
|
|
|
/********************** DISTANCE **************************/
|
|
|
|
static float TranslationBetween(TransInfo *UNUSED(t), const float p1[3], const float p2[3])
|
|
{
|
|
return len_squared_v3v3(p1, p2);
|
|
}
|
|
|
|
static float RotationBetween(TransInfo *t, const float p1[3], const float p2[3])
|
|
{
|
|
float angle, start[3], end[3];
|
|
|
|
sub_v3_v3v3(start, p1, t->center_global);
|
|
sub_v3_v3v3(end, p2, t->center_global);
|
|
|
|
// Angle around a constraint axis (error prone, will need debug)
|
|
if (t->con.applyRot != NULL && (t->con.mode & CON_APPLY)) {
|
|
float axis[3], tmp[3];
|
|
|
|
t->con.applyRot(t, NULL, axis, NULL);
|
|
|
|
project_v3_v3v3(tmp, end, axis);
|
|
sub_v3_v3v3(end, end, tmp);
|
|
|
|
project_v3_v3v3(tmp, start, axis);
|
|
sub_v3_v3v3(start, start, tmp);
|
|
|
|
normalize_v3(end);
|
|
normalize_v3(start);
|
|
|
|
cross_v3_v3v3(tmp, start, end);
|
|
|
|
if (dot_v3v3(tmp, axis) < 0.0f)
|
|
angle = -acosf(dot_v3v3(start, end));
|
|
else
|
|
angle = acosf(dot_v3v3(start, end));
|
|
}
|
|
else {
|
|
float mtx[3][3];
|
|
|
|
copy_m3_m4(mtx, t->viewmat);
|
|
|
|
mul_m3_v3(mtx, end);
|
|
mul_m3_v3(mtx, start);
|
|
|
|
angle = atan2f(start[1], start[0]) - atan2f(end[1], end[0]);
|
|
}
|
|
|
|
if (angle > (float)M_PI) {
|
|
angle = angle - 2 * (float)M_PI;
|
|
}
|
|
else if (angle < -((float)M_PI)) {
|
|
angle = 2.0f * (float)M_PI + angle;
|
|
}
|
|
|
|
return angle;
|
|
}
|
|
|
|
static float ResizeBetween(TransInfo *t, const float p1[3], const float p2[3])
|
|
{
|
|
float d1[3], d2[3], len_d1;
|
|
|
|
sub_v3_v3v3(d1, p1, t->center_global);
|
|
sub_v3_v3v3(d2, p2, t->center_global);
|
|
|
|
if (t->con.applyRot != NULL && (t->con.mode & CON_APPLY)) {
|
|
mul_m3_v3(t->con.pmtx, d1);
|
|
mul_m3_v3(t->con.pmtx, d2);
|
|
}
|
|
|
|
project_v3_v3v3(d1, d1, d2);
|
|
|
|
len_d1 = len_v3(d1);
|
|
|
|
/* Use 'invalid' dist when `center == p1` (after projecting),
|
|
* in this case scale will _never_ move the point in relation to the center,
|
|
* so it makes no sense to take it into account when scaling. see: T46503 */
|
|
return len_d1 != 0.0f ? len_v3(d2) / len_d1 : TRANSFORM_DIST_INVALID;
|
|
}
|
|
|
|
/********************** CALC **************************/
|
|
|
|
static void UNUSED_FUNCTION(CalcSnapGrid) (TransInfo *t, float *UNUSED(vec))
|
|
{
|
|
snapGridIncrementAction(t, t->tsnap.snapPoint, BIG_GEARS);
|
|
}
|
|
|
|
static void CalcSnapGeometry(TransInfo *t, float *UNUSED(vec))
|
|
{
|
|
if (t->spacetype == SPACE_VIEW3D) {
|
|
float loc[3];
|
|
float no[3];
|
|
float mval[2];
|
|
bool found = false;
|
|
float dist_px = SNAP_MIN_DISTANCE; // Use a user defined value here
|
|
|
|
mval[0] = t->mval[0];
|
|
mval[1] = t->mval[1];
|
|
|
|
if (t->tsnap.mode == SCE_SNAP_MODE_VOLUME) {
|
|
ListBase depth_peels;
|
|
DepthPeel *p1, *p2;
|
|
const float *last_p = NULL;
|
|
float max_dist = FLT_MAX;
|
|
float p[3] = {0.0f, 0.0f, 0.0f};
|
|
|
|
BLI_listbase_clear(&depth_peels);
|
|
|
|
peelObjectsTransForm(t, mval, t->tsnap.modeSelect, &depth_peels);
|
|
|
|
// if (LAST_SNAP_POINT_VALID)
|
|
// {
|
|
// last_p = LAST_SNAP_POINT;
|
|
// }
|
|
// else
|
|
{
|
|
last_p = t->tsnap.snapPoint;
|
|
}
|
|
|
|
|
|
for (p1 = depth_peels.first; p1; p1 = p1->next) {
|
|
if (p1->flag == 0) {
|
|
float vec[3];
|
|
float new_dist;
|
|
|
|
p2 = NULL;
|
|
p1->flag = 1;
|
|
|
|
/* if peeling objects, take the first and last from each object */
|
|
if (t->settings->snap_flag & SCE_SNAP_PEEL_OBJECT) {
|
|
DepthPeel *peel;
|
|
for (peel = p1->next; peel; peel = peel->next) {
|
|
if (peel->ob == p1->ob) {
|
|
peel->flag = 1;
|
|
p2 = peel;
|
|
}
|
|
}
|
|
}
|
|
/* otherwise, pair first with second and so on */
|
|
else {
|
|
for (p2 = p1->next; p2 && p2->ob != p1->ob; p2 = p2->next) {
|
|
/* nothing to do here */
|
|
}
|
|
}
|
|
|
|
if (p2) {
|
|
p2->flag = 1;
|
|
|
|
add_v3_v3v3(vec, p1->p, p2->p);
|
|
mul_v3_fl(vec, 0.5f);
|
|
}
|
|
else {
|
|
copy_v3_v3(vec, p1->p);
|
|
}
|
|
|
|
if (last_p == NULL) {
|
|
copy_v3_v3(p, vec);
|
|
max_dist = 0;
|
|
break;
|
|
}
|
|
|
|
new_dist = len_squared_v3v3(last_p, vec);
|
|
|
|
if (new_dist < max_dist) {
|
|
copy_v3_v3(p, vec);
|
|
max_dist = new_dist;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (max_dist != FLT_MAX) {
|
|
copy_v3_v3(loc, p);
|
|
/* XXX, is there a correct normal in this case ???, for now just z up */
|
|
no[0] = 0.0;
|
|
no[1] = 0.0;
|
|
no[2] = 1.0;
|
|
found = true;
|
|
}
|
|
|
|
BLI_freelistN(&depth_peels);
|
|
}
|
|
else {
|
|
zero_v3(no); /* objects won't set this */
|
|
found = snapObjectsTransform(
|
|
t, mval, t->tsnap.modeSelect, &dist_px,
|
|
loc, no);
|
|
}
|
|
|
|
if (found == true) {
|
|
float tangent[3];
|
|
|
|
sub_v2_v2v2(tangent, loc, t->tsnap.snapPoint);
|
|
tangent[2] = 0.0f;
|
|
|
|
if (!is_zero_v3(tangent)) {
|
|
copy_v3_v3(t->tsnap.snapTangent, tangent);
|
|
}
|
|
|
|
copy_v3_v3(t->tsnap.snapPoint, loc);
|
|
copy_v3_v3(t->tsnap.snapNormal, no);
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else {
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
}
|
|
else if (t->spacetype == SPACE_IMAGE && t->obedit != NULL && t->obedit->type == OB_MESH) {
|
|
/* same as above but for UV's */
|
|
Image *ima = ED_space_image(t->sa->spacedata.first);
|
|
float co[2];
|
|
|
|
UI_view2d_region_to_view(&t->ar->v2d, t->mval[0], t->mval[1], &co[0], &co[1]);
|
|
|
|
if (ED_uvedit_nearest_uv(t->scene, t->obedit, ima, co, t->tsnap.snapPoint)) {
|
|
t->tsnap.snapPoint[0] *= t->aspect[0];
|
|
t->tsnap.snapPoint[1] *= t->aspect[1];
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else {
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
}
|
|
else if (t->spacetype == SPACE_NODE) {
|
|
float loc[2];
|
|
float dist_px = SNAP_MIN_DISTANCE; // Use a user defined value here
|
|
char node_border;
|
|
|
|
if (snapNodesTransform(t, t->mval, t->tsnap.modeSelect, loc, &dist_px, &node_border)) {
|
|
copy_v2_v2(t->tsnap.snapPoint, loc);
|
|
t->tsnap.snapNodeBorder = node_border;
|
|
|
|
t->tsnap.status |= POINT_INIT;
|
|
}
|
|
else {
|
|
t->tsnap.status &= ~POINT_INIT;
|
|
}
|
|
}
|
|
}
|
|
|
|
/********************** TARGET **************************/
|
|
|
|
static void TargetSnapOffset(TransInfo *t, TransData *td)
|
|
{
|
|
if (t->spacetype == SPACE_NODE && td != NULL) {
|
|
bNode *node = td->extra;
|
|
char border = t->tsnap.snapNodeBorder;
|
|
float width = BLI_rctf_size_x(&node->totr);
|
|
float height = BLI_rctf_size_y(&node->totr);
|
|
|
|
#ifdef USE_NODE_CENTER
|
|
if (border & NODE_LEFT)
|
|
t->tsnap.snapTarget[0] -= 0.5f * width;
|
|
if (border & NODE_RIGHT)
|
|
t->tsnap.snapTarget[0] += 0.5f * width;
|
|
if (border & NODE_BOTTOM)
|
|
t->tsnap.snapTarget[1] -= 0.5f * height;
|
|
if (border & NODE_TOP)
|
|
t->tsnap.snapTarget[1] += 0.5f * height;
|
|
#else
|
|
if (border & NODE_LEFT)
|
|
t->tsnap.snapTarget[0] -= 0.0f;
|
|
if (border & NODE_RIGHT)
|
|
t->tsnap.snapTarget[0] += width;
|
|
if (border & NODE_BOTTOM)
|
|
t->tsnap.snapTarget[1] -= height;
|
|
if (border & NODE_TOP)
|
|
t->tsnap.snapTarget[1] += 0.0f;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static void TargetSnapCenter(TransInfo *t)
|
|
{
|
|
/* Only need to calculate once */
|
|
if ((t->tsnap.status & TARGET_INIT) == 0) {
|
|
copy_v3_v3(t->tsnap.snapTarget, t->center_global);
|
|
TargetSnapOffset(t, NULL);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
static void TargetSnapActive(TransInfo *t)
|
|
{
|
|
/* Only need to calculate once */
|
|
if ((t->tsnap.status & TARGET_INIT) == 0) {
|
|
if (calculateCenterActive(t, true, t->tsnap.snapTarget)) {
|
|
if (t->flag & (T_EDIT | T_POSE)) {
|
|
Object *ob = t->obedit ? t->obedit : t->poseobj;
|
|
mul_m4_v3(ob->obmat, t->tsnap.snapTarget);
|
|
}
|
|
|
|
TargetSnapOffset(t, NULL);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
/* No active, default to median */
|
|
else {
|
|
t->tsnap.target = SCE_SNAP_TARGET_MEDIAN;
|
|
t->tsnap.targetSnap = TargetSnapMedian;
|
|
TargetSnapMedian(t);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void TargetSnapMedian(TransInfo *t)
|
|
{
|
|
// Only need to calculate once
|
|
if ((t->tsnap.status & TARGET_INIT) == 0) {
|
|
TransData *td = NULL;
|
|
int i;
|
|
|
|
t->tsnap.snapTarget[0] = 0;
|
|
t->tsnap.snapTarget[1] = 0;
|
|
t->tsnap.snapTarget[2] = 0;
|
|
|
|
for (td = t->data, i = 0; i < t->total && td->flag & TD_SELECTED; i++, td++) {
|
|
add_v3_v3(t->tsnap.snapTarget, td->center);
|
|
}
|
|
|
|
mul_v3_fl(t->tsnap.snapTarget, 1.0 / i);
|
|
|
|
if (t->flag & (T_EDIT | T_POSE)) {
|
|
Object *ob = t->obedit ? t->obedit : t->poseobj;
|
|
mul_m4_v3(ob->obmat, t->tsnap.snapTarget);
|
|
}
|
|
|
|
TargetSnapOffset(t, NULL);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
static void TargetSnapClosest(TransInfo *t)
|
|
{
|
|
// Only valid if a snap point has been selected
|
|
if (t->tsnap.status & POINT_INIT) {
|
|
float dist_closest = 0.0f;
|
|
TransData *closest = NULL, *td = NULL;
|
|
|
|
/* Object mode */
|
|
if (t->flag & T_OBJECT) {
|
|
int i;
|
|
for (td = t->data, i = 0; i < t->total && td->flag & TD_SELECTED; i++, td++) {
|
|
struct BoundBox *bb = BKE_object_boundbox_get(td->ob);
|
|
|
|
/* use boundbox if possible */
|
|
if (bb) {
|
|
int j;
|
|
|
|
for (j = 0; j < 8; j++) {
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, bb->vec[j]);
|
|
mul_m4_v3(td->ext->obmat, loc);
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if ((dist != TRANSFORM_DIST_INVALID) &&
|
|
(closest == NULL || fabsf(dist) < fabsf(dist_closest)))
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
dist_closest = dist;
|
|
}
|
|
}
|
|
}
|
|
/* use element center otherwise */
|
|
else {
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, td->center);
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if ((dist != TRANSFORM_DIST_INVALID) &&
|
|
(closest == NULL || fabsf(dist) < fabsf(dist_closest)))
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
int i;
|
|
for (td = t->data, i = 0; i < t->total && td->flag & TD_SELECTED; i++, td++) {
|
|
float loc[3];
|
|
float dist;
|
|
|
|
copy_v3_v3(loc, td->center);
|
|
|
|
if (t->flag & (T_EDIT | T_POSE)) {
|
|
Object *ob = t->obedit ? t->obedit : t->poseobj;
|
|
mul_m4_v3(ob->obmat, loc);
|
|
}
|
|
|
|
dist = t->tsnap.distance(t, loc, t->tsnap.snapPoint);
|
|
|
|
if ((dist != TRANSFORM_DIST_INVALID) &&
|
|
(closest == NULL || fabsf(dist) < fabsf(dist_closest)))
|
|
{
|
|
copy_v3_v3(t->tsnap.snapTarget, loc);
|
|
closest = td;
|
|
dist_closest = dist;
|
|
}
|
|
}
|
|
}
|
|
|
|
TargetSnapOffset(t, closest);
|
|
|
|
t->tsnap.status |= TARGET_INIT;
|
|
}
|
|
}
|
|
|
|
bool snapObjectsTransform(
|
|
TransInfo *t, const float mval[2], SnapSelect snap_select,
|
|
float *dist_px,
|
|
float r_loc[3], float r_no[3])
|
|
{
|
|
float ray_dist = BVH_RAYCAST_DIST_MAX;
|
|
|
|
return ED_transform_snap_object_project_view3d_ex(
|
|
t->tsnap.object_context,
|
|
&(const struct SnapObjectParams){
|
|
.snap_select = snap_select,
|
|
.snap_to = t->scene->toolsettings->snap_mode,
|
|
.use_object_edit = (t->flag & T_EDIT) != 0,
|
|
.use_object_active = (t->options & CTX_GPENCIL_STROKES) == 0,
|
|
},
|
|
mval, dist_px,
|
|
&ray_dist,
|
|
r_loc, r_no, NULL);
|
|
}
|
|
|
|
|
|
/******************** PEELING *********************************/
|
|
|
|
|
|
static int cmpPeel(const void *arg1, const void *arg2)
|
|
{
|
|
const DepthPeel *p1 = arg1;
|
|
const DepthPeel *p2 = arg2;
|
|
int val = 0;
|
|
|
|
if (p1->depth < p2->depth) {
|
|
val = -1;
|
|
}
|
|
else if (p1->depth > p2->depth) {
|
|
val = 1;
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
static void removeDoublesPeel(ListBase *depth_peels)
|
|
{
|
|
DepthPeel *peel;
|
|
|
|
for (peel = depth_peels->first; peel; peel = peel->next) {
|
|
DepthPeel *next_peel = peel->next;
|
|
|
|
if (next_peel && fabsf(peel->depth - next_peel->depth) < 0.0015f) {
|
|
peel->next = next_peel->next;
|
|
|
|
if (next_peel->next) {
|
|
next_peel->next->prev = peel;
|
|
}
|
|
|
|
MEM_freeN(next_peel);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void addDepthPeel(ListBase *depth_peels, float depth, float p[3], float no[3], Object *ob)
|
|
{
|
|
DepthPeel *peel = MEM_callocN(sizeof(DepthPeel), "DepthPeel");
|
|
|
|
peel->depth = depth;
|
|
peel->ob = ob;
|
|
copy_v3_v3(peel->p, p);
|
|
copy_v3_v3(peel->no, no);
|
|
|
|
BLI_addtail(depth_peels, peel);
|
|
|
|
peel->flag = 0;
|
|
}
|
|
|
|
struct PeelRayCast_Data {
|
|
BVHTreeFromMesh bvhdata;
|
|
|
|
/* internal vars for adding peel */
|
|
Object *ob;
|
|
const float (*obmat)[4];
|
|
const float (*timat)[3];
|
|
|
|
const float *ray_start; /* globalspace */
|
|
|
|
const MLoopTri *looptri;
|
|
const float (*polynors)[3]; /* optional, can be NULL */
|
|
|
|
/* output list */
|
|
ListBase *depth_peels;
|
|
};
|
|
|
|
struct PeelEditMeshRayCast_Data {
|
|
BVHTreeFromEditMesh bvhdata;
|
|
|
|
/* internal vars for adding peel */
|
|
Object *ob;
|
|
const float(*obmat)[4];
|
|
const float(*timat)[3];
|
|
|
|
const float *ray_start; /* globalspace */
|
|
|
|
/* output list */
|
|
ListBase *depth_peels;
|
|
};
|
|
|
|
static void peelRayCast_cb(void *userdata, int index, const BVHTreeRay *ray, BVHTreeRayHit *hit)
|
|
{
|
|
struct PeelRayCast_Data *data = userdata;
|
|
|
|
data->bvhdata.raycast_callback(&data->bvhdata, index, ray, hit);
|
|
|
|
if (hit->index != -1) {
|
|
/* get all values in worldspace */
|
|
float location[3], normal[3];
|
|
float depth;
|
|
|
|
/* worldspace location */
|
|
mul_v3_m4v3(location, (float (*)[4])data->obmat, hit->co);
|
|
depth = len_v3v3(location, data->ray_start);
|
|
|
|
/* worldspace normal */
|
|
copy_v3_v3(normal, data->polynors ? data->polynors[data->looptri[hit->index].poly] : hit->no);
|
|
mul_m3_v3((float (*)[3])data->timat, normal);
|
|
normalize_v3(normal);
|
|
|
|
addDepthPeel(data->depth_peels, depth, location, normal, data->ob);
|
|
}
|
|
}
|
|
|
|
static void peelEditMeshRayCast_cb(void *userdata, int index, const BVHTreeRay *ray, BVHTreeRayHit *hit)
|
|
{
|
|
struct PeelEditMeshRayCast_Data *data = userdata;
|
|
|
|
data->bvhdata.raycast_callback(&data->bvhdata, index, ray, hit);
|
|
|
|
if (hit->index != -1) {
|
|
/* get all values in worldspace */
|
|
float location[3], normal[3];
|
|
float depth;
|
|
|
|
/* worldspace location */
|
|
mul_v3_m4v3(location, (float(*)[4])data->obmat, hit->co);
|
|
depth = len_v3v3(location, data->ray_start);
|
|
|
|
/* worldspace normal */
|
|
copy_v3_v3(normal, hit->no);
|
|
mul_m3_v3((float(*)[3])data->timat, normal);
|
|
normalize_v3(normal);
|
|
|
|
addDepthPeel(data->depth_peels, depth, location, normal, data->ob);
|
|
}
|
|
}
|
|
|
|
static bool peelDerivedMesh(
|
|
Object *ob, DerivedMesh *dm, float obmat[4][4],
|
|
const float ray_start[3], const float ray_normal[3], const float UNUSED(mval[2]),
|
|
ListBase *depth_peels)
|
|
{
|
|
bool retval = false;
|
|
int totvert = dm->getNumVerts(dm);
|
|
|
|
if (totvert > 0) {
|
|
const MLoopTri *looptri = dm->getLoopTriArray(dm);
|
|
const int looptri_num = dm->getNumLoopTri(dm);
|
|
float imat[4][4];
|
|
float timat[3][3]; /* transpose inverse matrix for normals */
|
|
float ray_start_local[3], ray_normal_local[3];
|
|
bool test = true;
|
|
|
|
invert_m4_m4(imat, obmat);
|
|
|
|
transpose_m3_m4(timat, imat);
|
|
|
|
mul_v3_m4v3(ray_start_local, imat, ray_start);
|
|
mul_v3_mat3_m4v3(ray_normal_local, imat, ray_normal);
|
|
|
|
/* If number of vert is more than an arbitrary limit,
|
|
* test against boundbox first
|
|
* */
|
|
if (looptri_num > 16) {
|
|
BoundBox *bb = BKE_object_boundbox_get(ob);
|
|
|
|
if (bb) {
|
|
BoundBox bb_temp;
|
|
|
|
/* We cannot aford a bbox with some null dimension, which may happen in some cases...
|
|
* Threshold is rather high, but seems to be needed to get good behavior, see T46099. */
|
|
bb = BKE_boundbox_ensure_minimum_dimensions(bb, &bb_temp, 1e-1f);
|
|
|
|
test = BKE_boundbox_ray_hit_check(bb, ray_start_local, ray_normal_local, NULL);
|
|
}
|
|
}
|
|
|
|
if (test == true) {
|
|
struct PeelRayCast_Data data;
|
|
|
|
bvhtree_from_mesh_looptri(&data.bvhdata, dm, 0.0f, 4, 6);
|
|
|
|
if (data.bvhdata.tree != NULL) {
|
|
data.ob = ob;
|
|
data.obmat = (const float (*)[4])obmat;
|
|
data.timat = (const float (*)[3])timat;
|
|
data.ray_start = ray_start;
|
|
data.looptri = looptri;
|
|
data.polynors = dm->getPolyDataArray(dm, CD_NORMAL); /* can be NULL */
|
|
data.depth_peels = depth_peels;
|
|
|
|
BLI_bvhtree_ray_cast_all(
|
|
data.bvhdata.tree, ray_start_local, ray_normal_local, 0.0f,
|
|
peelRayCast_cb, &data);
|
|
}
|
|
|
|
free_bvhtree_from_mesh(&data.bvhdata);
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static bool peelEditMesh(
|
|
Object *ob, BMEditMesh *em, float obmat[4][4],
|
|
const float ray_start[3], const float ray_normal[3],
|
|
ListBase *depth_peels)
|
|
{
|
|
bool retval = false;
|
|
int totvert = em->bm->totvert;
|
|
|
|
if (totvert > 0) {
|
|
float imat[4][4];
|
|
float timat[3][3]; /* transpose inverse matrix for normals */
|
|
float ray_start_local[3], ray_normal_local[3];
|
|
bool test = true;
|
|
|
|
invert_m4_m4(imat, obmat);
|
|
|
|
transpose_m3_m4(timat, imat);
|
|
|
|
mul_v3_m4v3(ray_start_local, imat, ray_start);
|
|
mul_v3_mat3_m4v3(ray_normal_local, imat, ray_normal);
|
|
|
|
if (test == true) {
|
|
struct PeelEditMeshRayCast_Data data;
|
|
|
|
BLI_bitmap *looptri_mask = BLI_BITMAP_NEW(em->tottri, __func__);
|
|
int looptri_num_active = BM_iter_mesh_bitmap_from_filter_tessface(
|
|
em->bm, looptri_mask,
|
|
BM_elem_cb_check_hflag_enabled_simple(BMFace *, (BM_ELEM_SELECT | BM_ELEM_HIDDEN)));
|
|
|
|
bvhtree_from_editmesh_looptri_ex(&data.bvhdata, em, looptri_mask, looptri_num_active, 0.0f, 4, 6);
|
|
|
|
MEM_freeN(looptri_mask);
|
|
|
|
if (data.bvhdata.tree != NULL) {
|
|
data.ob = ob;
|
|
data.obmat = (const float(*)[4])obmat;
|
|
data.timat = (const float(*)[3])timat;
|
|
data.ray_start = ray_start;
|
|
data.depth_peels = depth_peels;
|
|
|
|
BLI_bvhtree_ray_cast_all(
|
|
data.bvhdata.tree, ray_start_local, ray_normal_local, 0.0f,
|
|
peelEditMeshRayCast_cb, &data);
|
|
}
|
|
|
|
free_bvhtree_from_editmesh(&data.bvhdata);
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static bool peelObjects(
|
|
Scene *scene, View3D *v3d, ARegion *ar, Object *obedit,
|
|
const float mval[2], SnapSelect snap_select,
|
|
ListBase *r_depth_peels)
|
|
{
|
|
Base *base;
|
|
bool retval = false;
|
|
float ray_start[3], ray_normal[3];
|
|
|
|
if (ED_view3d_win_to_ray(ar, v3d, mval, ray_start, ray_normal, true) == false) {
|
|
return false;
|
|
}
|
|
|
|
for (base = scene->base.first; base != NULL; base = base->next) {
|
|
if (BASE_SELECTABLE(v3d, base)) {
|
|
Object *ob = base->object;
|
|
|
|
if (ob->transflag & OB_DUPLI) {
|
|
DupliObject *dupli_ob;
|
|
ListBase *lb = object_duplilist(G.main->eval_ctx, scene, ob);
|
|
|
|
for (dupli_ob = lb->first; dupli_ob; dupli_ob = dupli_ob->next) {
|
|
Object *dob = dupli_ob->ob;
|
|
|
|
if (dob->type == OB_MESH) {
|
|
BMEditMesh *em;
|
|
bool val;
|
|
|
|
if (dob != obedit) {
|
|
DerivedMesh *dm;
|
|
dm = mesh_get_derived_final(scene, dob, CD_MASK_BAREMESH);
|
|
val = peelDerivedMesh(dob, dm, dob->obmat, ray_start, ray_normal, mval, r_depth_peels);
|
|
|
|
dm->release(dm);
|
|
}
|
|
else {
|
|
em = BKE_editmesh_from_object(dob);
|
|
val = peelEditMesh(dob, em, dob->obmat, ray_start, ray_normal, r_depth_peels);
|
|
}
|
|
|
|
retval = retval || val;
|
|
}
|
|
}
|
|
|
|
free_object_duplilist(lb);
|
|
}
|
|
|
|
if (ob->type == OB_MESH) {
|
|
bool val = false;
|
|
|
|
if (ob != obedit && ((snap_select == SNAP_NOT_SELECTED && (base->flag & (SELECT | BA_WAS_SEL)) == 0) || ELEM(snap_select, SNAP_ALL, SNAP_NOT_OBEDIT))) {
|
|
DerivedMesh *dm = mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH);
|
|
|
|
val = peelDerivedMesh(ob, dm, ob->obmat, ray_start, ray_normal, mval, r_depth_peels);
|
|
dm->release(dm);
|
|
}
|
|
else if (ob == obedit && snap_select != SNAP_NOT_OBEDIT) {
|
|
BMEditMesh *em = BKE_editmesh_from_object(ob);
|
|
DerivedMesh *dm = editbmesh_get_derived_cage(scene, obedit, em, CD_MASK_BAREMESH);
|
|
|
|
val = peelDerivedMesh(ob, dm, ob->obmat, ray_start, ray_normal, mval, r_depth_peels);
|
|
dm->release(dm);
|
|
}
|
|
|
|
retval = retval || val;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
BLI_listbase_sort(r_depth_peels, cmpPeel);
|
|
removeDoublesPeel(r_depth_peels);
|
|
|
|
return retval;
|
|
}
|
|
|
|
bool peelObjectsTransForm(
|
|
TransInfo *t, const float mval[2], SnapSelect snap_select,
|
|
ListBase *r_depth_peels)
|
|
{
|
|
return peelObjects(t->scene, t->view, t->ar, t->obedit, mval, snap_select, r_depth_peels);
|
|
}
|
|
|
|
bool peelObjectsContext(
|
|
bContext *C, const float mval[2], SnapSelect snap_select,
|
|
ListBase *r_depth_peels)
|
|
{
|
|
Scene *scene = CTX_data_scene(C);
|
|
ScrArea *sa = CTX_wm_area(C);
|
|
View3D *v3d = sa->spacedata.first;
|
|
ARegion *ar = CTX_wm_region(C);
|
|
Object *obedit = CTX_data_edit_object(C);
|
|
|
|
return peelObjects(scene, v3d, ar, obedit, mval, snap_select, r_depth_peels);
|
|
}
|
|
|
|
/******************** NODES ***********************************/
|
|
|
|
static bool snapNodeTest(View2D *v2d, bNode *node, SnapSelect snap_select)
|
|
{
|
|
/* node is use for snapping only if a) snap mode matches and b) node is inside the view */
|
|
return ((snap_select == SNAP_NOT_SELECTED && !(node->flag & NODE_SELECT)) ||
|
|
(snap_select == SNAP_ALL && !(node->flag & NODE_ACTIVE))) &&
|
|
(node->totr.xmin < v2d->cur.xmax && node->totr.xmax > v2d->cur.xmin &&
|
|
node->totr.ymin < v2d->cur.ymax && node->totr.ymax > v2d->cur.ymin);
|
|
}
|
|
|
|
static NodeBorder snapNodeBorder(int snap_node_mode)
|
|
{
|
|
switch (snap_node_mode) {
|
|
case SCE_SNAP_MODE_NODE_X:
|
|
return NODE_LEFT | NODE_RIGHT;
|
|
case SCE_SNAP_MODE_NODE_Y:
|
|
return NODE_TOP | NODE_BOTTOM;
|
|
case SCE_SNAP_MODE_NODE_XY:
|
|
return NODE_LEFT | NODE_RIGHT | NODE_TOP | NODE_BOTTOM;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static bool snapNode(
|
|
ToolSettings *ts, SpaceNode *UNUSED(snode), ARegion *ar, bNode *node, const int mval[2],
|
|
float r_loc[2], float *r_dist_px, char *r_node_border)
|
|
{
|
|
View2D *v2d = &ar->v2d;
|
|
NodeBorder border = snapNodeBorder(ts->snap_node_mode);
|
|
bool retval = false;
|
|
rcti totr;
|
|
int new_dist;
|
|
|
|
UI_view2d_view_to_region_rcti(v2d, &node->totr, &totr);
|
|
|
|
if (border & NODE_LEFT) {
|
|
new_dist = abs(totr.xmin - mval[0]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, totr.xmin, mval[1], &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_LEFT;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
if (border & NODE_RIGHT) {
|
|
new_dist = abs(totr.xmax - mval[0]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, totr.xmax, mval[1], &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_RIGHT;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
if (border & NODE_BOTTOM) {
|
|
new_dist = abs(totr.ymin - mval[1]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, mval[0], totr.ymin, &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_BOTTOM;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
if (border & NODE_TOP) {
|
|
new_dist = abs(totr.ymax - mval[1]);
|
|
if (new_dist < *r_dist_px) {
|
|
UI_view2d_region_to_view(v2d, mval[0], totr.ymax, &r_loc[0], &r_loc[1]);
|
|
*r_dist_px = new_dist;
|
|
*r_node_border = NODE_TOP;
|
|
retval = true;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
static bool snapNodes(
|
|
ToolSettings *ts, SpaceNode *snode, ARegion *ar,
|
|
const int mval[2], SnapSelect snap_select,
|
|
float r_loc[2], float *r_dist_px, char *r_node_border)
|
|
{
|
|
bNodeTree *ntree = snode->edittree;
|
|
bNode *node;
|
|
bool retval = false;
|
|
|
|
*r_node_border = 0;
|
|
|
|
for (node = ntree->nodes.first; node; node = node->next) {
|
|
if (snapNodeTest(&ar->v2d, node, snap_select)) {
|
|
retval |= snapNode(ts, snode, ar, node, mval, r_loc, r_dist_px, r_node_border);
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
bool snapNodesTransform(
|
|
TransInfo *t, const int mval[2], SnapSelect snap_select,
|
|
float r_loc[2], float *r_dist_px, char *r_node_border)
|
|
{
|
|
return snapNodes(
|
|
t->settings, t->sa->spacedata.first, t->ar, mval, snap_select,
|
|
r_loc, r_dist_px, r_node_border);
|
|
}
|
|
|
|
bool snapNodesContext(
|
|
bContext *C, const int mval[2], SnapSelect snap_select,
|
|
float r_loc[2], float *r_dist_px, char *r_node_border)
|
|
{
|
|
Scene *scene = CTX_data_scene(C);
|
|
ARegion *ar = CTX_wm_region(C);
|
|
return snapNodes(
|
|
scene->toolsettings, CTX_wm_space_node(C), ar, mval, snap_select,
|
|
r_loc, r_dist_px, r_node_border);
|
|
}
|
|
|
|
/*================================================================*/
|
|
|
|
static void applyGridIncrement(TransInfo *t, float *val, int max_index, const float fac[3], GearsType action);
|
|
|
|
|
|
void snapGridIncrementAction(TransInfo *t, float *val, GearsType action)
|
|
{
|
|
float fac[3];
|
|
|
|
fac[NO_GEARS] = t->snap[0];
|
|
fac[BIG_GEARS] = t->snap[1];
|
|
fac[SMALL_GEARS] = t->snap[2];
|
|
|
|
applyGridIncrement(t, val, t->idx_max, fac, action);
|
|
}
|
|
|
|
|
|
void snapGridIncrement(TransInfo *t, float *val)
|
|
{
|
|
GearsType action;
|
|
|
|
/* only do something if using absolute or incremental grid snapping */
|
|
if (!ELEM(t->tsnap.mode, SCE_SNAP_MODE_INCREMENT, SCE_SNAP_MODE_GRID))
|
|
return;
|
|
|
|
action = activeSnap(t) ? BIG_GEARS : NO_GEARS;
|
|
|
|
if (action == BIG_GEARS && (t->modifiers & MOD_PRECISION)) {
|
|
action = SMALL_GEARS;
|
|
}
|
|
|
|
snapGridIncrementAction(t, val, action);
|
|
}
|
|
|
|
void snapSequenceBounds(TransInfo *t, const int mval[2])
|
|
{
|
|
float xmouse, ymouse;
|
|
int frame;
|
|
int mframe;
|
|
TransSeq *ts = t->custom.type.data;
|
|
/* reuse increment, strictly speaking could be another snap mode, but leave as is */
|
|
if (!(t->modifiers & MOD_SNAP_INVERT))
|
|
return;
|
|
|
|
/* convert to frame range */
|
|
UI_view2d_region_to_view(&t->ar->v2d, mval[0], mval[1], &xmouse, &ymouse);
|
|
mframe = iroundf(xmouse);
|
|
/* now find the closest sequence */
|
|
frame = BKE_sequencer_find_next_prev_edit(t->scene, mframe, SEQ_SIDE_BOTH, true, false, true);
|
|
|
|
if (!ts->snap_left)
|
|
frame = frame - (ts->max - ts->min);
|
|
|
|
t->values[0] = frame - ts->min;
|
|
}
|
|
|
|
static void applyGridIncrement(TransInfo *t, float *val, int max_index, const float fac[3], GearsType action)
|
|
{
|
|
float asp_local[3] = {1, 1, 1};
|
|
const bool use_aspect = ELEM(t->mode, TFM_TRANSLATION);
|
|
const float *asp = use_aspect ? t->aspect : asp_local;
|
|
int i;
|
|
|
|
BLI_assert(ELEM(t->tsnap.mode, SCE_SNAP_MODE_INCREMENT, SCE_SNAP_MODE_GRID));
|
|
BLI_assert(max_index <= 2);
|
|
|
|
/* Early bailing out if no need to snap */
|
|
if (fac[action] == 0.0f) {
|
|
return;
|
|
}
|
|
|
|
if (use_aspect) {
|
|
/* custom aspect for fcurve */
|
|
if (t->spacetype == SPACE_IPO) {
|
|
View2D *v2d = &t->ar->v2d;
|
|
View2DGrid *grid;
|
|
SpaceIpo *sipo = t->sa->spacedata.first;
|
|
int unity = V2D_UNIT_VALUES;
|
|
int unitx = (sipo->flag & SIPO_DRAWTIME) ? V2D_UNIT_SECONDS : V2D_UNIT_FRAMESCALE;
|
|
|
|
/* grid */
|
|
grid = UI_view2d_grid_calc(t->scene, v2d, unitx, V2D_GRID_NOCLAMP, unity, V2D_GRID_NOCLAMP, t->ar->winx, t->ar->winy);
|
|
|
|
UI_view2d_grid_size(grid, &asp_local[0], &asp_local[1]);
|
|
UI_view2d_grid_free(grid);
|
|
|
|
asp = asp_local;
|
|
}
|
|
}
|
|
|
|
/* absolute snapping on grid based on global center */
|
|
if ((t->tsnap.snap_spatial_grid) && (t->mode == TFM_TRANSLATION)) {
|
|
for (i = 0; i <= max_index; i++) {
|
|
/* do not let unconstrained axis jump to absolute grid increments */
|
|
if (!(t->con.mode & CON_APPLY) || t->con.mode & (CON_AXIS0 << i)) {
|
|
const float iter_fac = fac[action] * asp[i];
|
|
val[i] = iter_fac * roundf((val[i] + t->center_global[i]) / iter_fac) - t->center_global[i];
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
/* relative snapping in fixed increments */
|
|
for (i = 0; i <= max_index; i++) {
|
|
const float iter_fac = fac[action] * asp[i];
|
|
val[i] = iter_fac * roundf(val[i] / iter_fac);
|
|
}
|
|
}
|
|
}
|