195 lines
4.8 KiB
C
195 lines
4.8 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) 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_surface.c
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* \ingroup modifiers
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*/
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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"
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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 "MOD_modifiertypes.h"
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#include "MOD_util.h"
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#include "MEM_guardedalloc.h"
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static void initData(ModifierData *md)
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{
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SurfaceModifierData *surmd = (SurfaceModifierData *) md;
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surmd->bvhtree = NULL;
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}
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static void freeData(ModifierData *md)
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{
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SurfaceModifierData *surmd = (SurfaceModifierData *) md;
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if (surmd) {
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if (surmd->bvhtree) {
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free_bvhtree_from_mesh(surmd->bvhtree);
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MEM_freeN(surmd->bvhtree);
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}
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if (surmd->dm)
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surmd->dm->release(surmd->dm);
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if (surmd->x)
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MEM_freeN(surmd->x);
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if (surmd->v)
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MEM_freeN(surmd->v);
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surmd->bvhtree = NULL;
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surmd->dm = NULL;
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}
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}
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static bool dependsOnTime(ModifierData *UNUSED(md))
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{
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return true;
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}
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static void deformVerts(ModifierData *md, Object *ob,
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DerivedMesh *derivedData,
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float (*vertexCos)[3],
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int UNUSED(numVerts),
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ModifierApplyFlag UNUSED(flag))
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{
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SurfaceModifierData *surmd = (SurfaceModifierData *) md;
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if (surmd->dm)
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surmd->dm->release(surmd->dm);
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/* if possible use/create DerivedMesh */
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if (derivedData) surmd->dm = CDDM_copy(derivedData);
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else surmd->dm = get_dm(ob, NULL, NULL, NULL, 0);
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if (!ob->pd) {
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printf("SurfaceModifier deformVerts: Should not happen!\n");
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return;
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}
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if (surmd->dm) {
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unsigned int numverts = 0, i = 0;
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int init = 0;
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float *vec;
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MVert *x, *v;
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CDDM_apply_vert_coords(surmd->dm, vertexCos);
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CDDM_calc_normals(surmd->dm);
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numverts = surmd->dm->getNumVerts(surmd->dm);
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if (numverts != surmd->numverts ||
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surmd->x == NULL ||
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surmd->v == NULL ||
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md->scene->r.cfra != surmd->cfra + 1)
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{
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if (surmd->x) {
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MEM_freeN(surmd->x);
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surmd->x = NULL;
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}
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if (surmd->v) {
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MEM_freeN(surmd->v);
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surmd->v = NULL;
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}
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surmd->x = MEM_callocN(numverts * sizeof(MVert), "MVert");
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surmd->v = MEM_callocN(numverts * sizeof(MVert), "MVert");
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surmd->numverts = numverts;
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init = 1;
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}
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/* convert to global coordinates and calculate velocity */
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for (i = 0, x = surmd->x, v = surmd->v; i < numverts; i++, x++, v++) {
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vec = CDDM_get_vert(surmd->dm, i)->co;
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mul_m4_v3(ob->obmat, vec);
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if (init)
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v->co[0] = v->co[1] = v->co[2] = 0.0f;
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else
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sub_v3_v3v3(v->co, vec, x->co);
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copy_v3_v3(x->co, vec);
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}
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surmd->cfra = md->scene->r.cfra;
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if (surmd->bvhtree)
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free_bvhtree_from_mesh(surmd->bvhtree);
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else
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surmd->bvhtree = MEM_callocN(sizeof(BVHTreeFromMesh), "BVHTreeFromMesh");
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if (surmd->dm->getNumTessFaces(surmd->dm))
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bvhtree_from_mesh_faces(surmd->bvhtree, surmd->dm, 0.0, 2, 6);
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else
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bvhtree_from_mesh_edges(surmd->bvhtree, surmd->dm, 0.0, 2, 6);
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}
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}
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ModifierTypeInfo modifierType_Surface = {
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/* name */ "Surface",
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/* structName */ "SurfaceModifierData",
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/* structSize */ sizeof(SurfaceModifierData),
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/* type */ eModifierTypeType_OnlyDeform,
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/* flags */ eModifierTypeFlag_AcceptsMesh |
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eModifierTypeFlag_NoUserAdd,
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/* copyData */ NULL,
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/* deformVerts */ deformVerts,
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/* deformMatrices */ NULL,
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/* deformVertsEM */ NULL,
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/* deformMatricesEM */ NULL,
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/* applyModifier */ NULL,
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/* applyModifierEM */ NULL,
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/* initData */ initData,
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/* requiredDataMask */ NULL,
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/* freeData */ freeData,
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/* isDisabled */ NULL,
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/* updateDepgraph */ NULL,
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/* dependsOnTime */ dependsOnTime,
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/* dependsOnNormals */ NULL,
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/* foreachObjectLink */ NULL,
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/* foreachIDLink */ NULL,
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/* foreachTexLink */ NULL,
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};
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