77c2266d7b
texture users in the context. It's only useful for modifiers and brushes at the moment, not for shading nodes as using texture datablocks there is not yet supported.
368 lines
9.1 KiB
C
368 lines
9.1 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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/** \file blender/modifiers/intern/MOD_mirror.c
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* \ingroup modifiers
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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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#include "MOD_util.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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if(mmd->flag & MOD_MIR_NO_MERGE)
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isShared = 0;
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else
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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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//
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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 */ NULL,
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/* deformMatrices */ NULL,
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/* deformVertsEM */ NULL,
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/* deformMatricesEM */ NULL,
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/* applyModifier */ applyModifier,
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/* applyModifierEM */ applyModifierEM,
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/* initData */ initData,
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/* requiredDataMask */ NULL,
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/* freeData */ NULL,
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/* isDisabled */ NULL,
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/* updateDepgraph */ updateDepgraph,
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/* dependsOnTime */ NULL,
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/* dependsOnNormals */ NULL,
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/* foreachObjectLink */ foreachObjectLink,
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/* foreachIDLink */ NULL,
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/* foreachTexLink */ NULL,
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};
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