329e2d8037
Used a crazyspace approach (like in edit mode), but only modifiers with deformMatricies are allowed atm (currently shapekeys and armature modifiers only). All the rest modifiers had an warning message that they aren't applied because of sculpt mode. Deformation of multires is also unsupported. With all this restictions users will always see the actual "layer" (or maybe mesh state would be more correct word) they are sculpting on. Internal changes: - All modifiers could have deformMatricies callback (the same as deformMatriciesEM but for non-edit mode usage) - Added function to build crazyspace for sculpting (sculpt_get_deform_matrices), but it could be generalized for usage in other painting modes (particle edit mode, i.e) Todo: - Implement crazyspace correction to support all kinds of deformation modifiers - Maybe deformation of multires isn't so difficult? - And maybe we could avoid extra bad-level-stub for ED_sculpt_modifiers_changed without code duplicating?
356 lines
8.9 KiB
C
356 lines
8.9 KiB
C
/*
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* $Id$
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*
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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) 2005 by the Blender Foundation.
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* All rights reserved.
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*
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* Contributor(s): Daniel Dunbar
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* Ton Roosendaal,
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* Ben Batt,
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* Brecht Van Lommel,
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* Campbell Barton
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*
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* ***** END GPL LICENSE BLOCK *****
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*
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*/
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#include "DNA_meshdata_types.h"
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#include "DNA_object_types.h"
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#include "BLI_math.h"
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#include "BLI_utildefines.h"
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#include "BKE_cdderivedmesh.h"
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#include "BKE_mesh.h"
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#include "BKE_modifier.h"
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#include "BKE_deform.h"
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#include "MEM_guardedalloc.h"
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#include "depsgraph_private.h"
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static void initData(ModifierData *md)
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{
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MirrorModifierData *mmd = (MirrorModifierData*) md;
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mmd->flag |= (MOD_MIR_AXIS_X | MOD_MIR_VGROUP);
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mmd->tolerance = 0.001;
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mmd->mirror_ob = NULL;
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}
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static void copyData(ModifierData *md, ModifierData *target)
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{
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MirrorModifierData *mmd = (MirrorModifierData*) md;
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MirrorModifierData *tmmd = (MirrorModifierData*) target;
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tmmd->axis = mmd->axis;
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tmmd->flag = mmd->flag;
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tmmd->tolerance = mmd->tolerance;
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tmmd->mirror_ob = mmd->mirror_ob;
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}
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static void foreachObjectLink(
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ModifierData *md, Object *ob,
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void (*walk)(void *userData, Object *ob, Object **obpoin),
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void *userData)
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{
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MirrorModifierData *mmd = (MirrorModifierData*) md;
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walk(userData, ob, &mmd->mirror_ob);
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}
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static void updateDepgraph(ModifierData *md, DagForest *forest,
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struct Scene *UNUSED(scene),
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Object *UNUSED(ob),
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DagNode *obNode)
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{
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MirrorModifierData *mmd = (MirrorModifierData*) md;
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if(mmd->mirror_ob) {
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DagNode *latNode = dag_get_node(forest, mmd->mirror_ob);
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dag_add_relation(forest, latNode, obNode,
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DAG_RL_DATA_DATA | DAG_RL_OB_DATA, "Mirror Modifier");
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}
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}
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static DerivedMesh *doMirrorOnAxis(MirrorModifierData *mmd,
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Object *ob,
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DerivedMesh *dm,
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int initFlags,
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int axis)
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{
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int i;
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float tolerance = mmd->tolerance;
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DerivedMesh *result;
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int numVerts, numEdges, numFaces;
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int maxVerts = dm->getNumVerts(dm);
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int maxEdges = dm->getNumEdges(dm);
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int maxFaces = dm->getNumFaces(dm);
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int *flip_map= NULL;
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int do_vgroup_mirr= (mmd->flag & MOD_MIR_VGROUP);
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int (*indexMap)[2];
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float mtx[4][4], imtx[4][4];
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numVerts = numEdges = numFaces = 0;
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indexMap = MEM_mallocN(sizeof(*indexMap) * maxVerts, "indexmap");
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result = CDDM_from_template(dm, maxVerts * 2, maxEdges * 2, maxFaces * 2);
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if (do_vgroup_mirr) {
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flip_map= defgroup_flip_map(ob, 0);
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if(flip_map == NULL)
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do_vgroup_mirr= 0;
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}
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if (mmd->mirror_ob) {
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float obinv[4][4];
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invert_m4_m4(obinv, mmd->mirror_ob->obmat);
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mul_m4_m4m4(mtx, ob->obmat, obinv);
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invert_m4_m4(imtx, mtx);
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}
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for(i = 0; i < maxVerts; i++) {
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MVert inMV;
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MVert *mv = CDDM_get_vert(result, numVerts);
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int isShared;
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float co[3];
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dm->getVert(dm, i, &inMV);
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copy_v3_v3(co, inMV.co);
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if (mmd->mirror_ob) {
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mul_m4_v3(mtx, co);
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}
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isShared = ABS(co[axis])<=tolerance;
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/* Because the topology result (# of vertices) must be the same if
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* the mesh data is overridden by vertex cos, have to calc sharedness
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* based on original coordinates. This is why we test before copy.
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*/
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DM_copy_vert_data(dm, result, i, numVerts, 1);
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*mv = inMV;
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numVerts++;
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indexMap[i][0] = numVerts - 1;
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indexMap[i][1] = !isShared;
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if(isShared) {
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co[axis] = 0;
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if (mmd->mirror_ob) {
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mul_m4_v3(imtx, co);
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}
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copy_v3_v3(mv->co, co);
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mv->flag |= ME_VERT_MERGED;
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} else {
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MVert *mv2 = CDDM_get_vert(result, numVerts);
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DM_copy_vert_data(dm, result, i, numVerts, 1);
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*mv2 = *mv;
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co[axis] = -co[axis];
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if (mmd->mirror_ob) {
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mul_m4_v3(imtx, co);
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}
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copy_v3_v3(mv2->co, co);
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if (do_vgroup_mirr) {
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MDeformVert *dvert= DM_get_vert_data(result, numVerts, CD_MDEFORMVERT);
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if(dvert) {
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defvert_flip(dvert, flip_map);
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}
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}
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numVerts++;
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}
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}
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for(i = 0; i < maxEdges; i++) {
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MEdge inMED;
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MEdge *med = CDDM_get_edge(result, numEdges);
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dm->getEdge(dm, i, &inMED);
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DM_copy_edge_data(dm, result, i, numEdges, 1);
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*med = inMED;
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numEdges++;
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med->v1 = indexMap[inMED.v1][0];
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med->v2 = indexMap[inMED.v2][0];
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if(initFlags)
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med->flag |= ME_EDGEDRAW | ME_EDGERENDER;
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if(indexMap[inMED.v1][1] || indexMap[inMED.v2][1]) {
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MEdge *med2 = CDDM_get_edge(result, numEdges);
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DM_copy_edge_data(dm, result, i, numEdges, 1);
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*med2 = *med;
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numEdges++;
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med2->v1 += indexMap[inMED.v1][1];
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med2->v2 += indexMap[inMED.v2][1];
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}
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}
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for(i = 0; i < maxFaces; i++) {
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MFace inMF;
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MFace *mf = CDDM_get_face(result, numFaces);
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dm->getFace(dm, i, &inMF);
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DM_copy_face_data(dm, result, i, numFaces, 1);
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*mf = inMF;
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numFaces++;
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mf->v1 = indexMap[inMF.v1][0];
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mf->v2 = indexMap[inMF.v2][0];
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mf->v3 = indexMap[inMF.v3][0];
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mf->v4 = indexMap[inMF.v4][0];
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if(indexMap[inMF.v1][1]
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|| indexMap[inMF.v2][1]
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|| indexMap[inMF.v3][1]
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|| (mf->v4 && indexMap[inMF.v4][1])) {
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MFace *mf2 = CDDM_get_face(result, numFaces);
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static int corner_indices[4] = {2, 1, 0, 3};
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DM_copy_face_data(dm, result, i, numFaces, 1);
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*mf2 = *mf;
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mf2->v1 += indexMap[inMF.v1][1];
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mf2->v2 += indexMap[inMF.v2][1];
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mf2->v3 += indexMap[inMF.v3][1];
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if(inMF.v4) mf2->v4 += indexMap[inMF.v4][1];
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/* mirror UVs if enabled */
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if(mmd->flag & (MOD_MIR_MIRROR_U | MOD_MIR_MIRROR_V)) {
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MTFace *tf = result->getFaceData(result, numFaces, CD_MTFACE);
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if(tf) {
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int j;
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for(j = 0; j < 4; ++j) {
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if(mmd->flag & MOD_MIR_MIRROR_U)
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tf->uv[j][0] = 1.0f - tf->uv[j][0];
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if(mmd->flag & MOD_MIR_MIRROR_V)
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tf->uv[j][1] = 1.0f - tf->uv[j][1];
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}
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}
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}
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/* Flip face normal */
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SWAP(int, mf2->v1, mf2->v3);
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DM_swap_face_data(result, numFaces, corner_indices);
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test_index_face(mf2, &result->faceData, numFaces, inMF.v4?4:3);
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numFaces++;
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}
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}
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if (flip_map) MEM_freeN(flip_map);
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MEM_freeN(indexMap);
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CDDM_lower_num_verts(result, numVerts);
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CDDM_lower_num_edges(result, numEdges);
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CDDM_lower_num_faces(result, numFaces);
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return result;
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}
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static DerivedMesh *mirrorModifier__doMirror(MirrorModifierData *mmd,
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Object *ob, DerivedMesh *dm,
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int initFlags)
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{
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DerivedMesh *result = dm;
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/* check which axes have been toggled and mirror accordingly */
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if(mmd->flag & MOD_MIR_AXIS_X) {
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result = doMirrorOnAxis(mmd, ob, result, initFlags, 0);
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}
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if(mmd->flag & MOD_MIR_AXIS_Y) {
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DerivedMesh *tmp = result;
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result = doMirrorOnAxis(mmd, ob, result, initFlags, 1);
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if(tmp != dm) tmp->release(tmp); /* free intermediate results */
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}
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if(mmd->flag & MOD_MIR_AXIS_Z) {
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DerivedMesh *tmp = result;
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result = doMirrorOnAxis(mmd, ob, result, initFlags, 2);
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if(tmp != dm) tmp->release(tmp); /* free intermediate results */
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}
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return result;
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}
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static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
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DerivedMesh *derivedData,
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int UNUSED(useRenderParams),
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int UNUSED(isFinalCalc))
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{
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DerivedMesh *result;
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MirrorModifierData *mmd = (MirrorModifierData*) md;
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result = mirrorModifier__doMirror(mmd, ob, derivedData, 0);
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if(result != derivedData)
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CDDM_calc_normals(result);
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return result;
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}
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static DerivedMesh *applyModifierEM(ModifierData *md, Object *ob,
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struct EditMesh *UNUSED(editData),
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DerivedMesh *derivedData)
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{
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return applyModifier(md, ob, derivedData, 0, 1);
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}
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ModifierTypeInfo modifierType_Mirror = {
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/* name */ "Mirror",
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/* structName */ "MirrorModifierData",
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/* structSize */ sizeof(MirrorModifierData),
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/* type */ eModifierTypeType_Constructive,
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/* flags */ eModifierTypeFlag_AcceptsMesh
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| eModifierTypeFlag_SupportsMapping
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| eModifierTypeFlag_SupportsEditmode
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| eModifierTypeFlag_EnableInEditmode
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| eModifierTypeFlag_AcceptsCVs,
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/* copyData */ copyData,
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/* deformVerts */ 0,
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/* deformMatrices */ 0,
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/* deformVertsEM */ 0,
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/* deformMatricesEM */ 0,
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/* applyModifier */ applyModifier,
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/* applyModifierEM */ applyModifierEM,
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/* initData */ initData,
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/* requiredDataMask */ 0,
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/* freeData */ 0,
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/* isDisabled */ 0,
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/* updateDepgraph */ updateDepgraph,
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/* dependsOnTime */ 0,
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/* dependsOnNormals */ 0,
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/* foreachObjectLink */ foreachObjectLink,
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/* foreachIDLink */ 0,
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};
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