We already have different storages for cddata of verts, edges etc., 'simply' do the same for the mask flags we use all around Blender code to request some data, or limit some operation to some layers, etc. Reason we need this is that some cddata types (like Normals) are actually shared between verts/polys/loops, and we don’t want to generate clnors everytime we request vnors! As a side note, this also does final fix to T59338, which was the trigger for this patch (need to request computed loop normals for another mesh than evaluated one). Reviewers: brecht, campbellbarton, sergey Differential Revision: https://developer.blender.org/D4407
267 lines
7.7 KiB
C
267 lines
7.7 KiB
C
/*
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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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/** \file
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* \ingroup modifiers
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*/
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#include <string.h>
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#include "BLI_utildefines.h"
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#include "BLI_listbase.h"
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#include "DNA_cloth_types.h"
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#include "DNA_key_types.h"
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#include "DNA_mesh_types.h"
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#include "DNA_scene_types.h"
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#include "DNA_object_types.h"
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#include "MEM_guardedalloc.h"
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#include "BKE_cloth.h"
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#include "BKE_effect.h"
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#include "BKE_global.h"
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#include "BKE_key.h"
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#include "BKE_library.h"
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#include "BKE_library_query.h"
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#include "BKE_mesh.h"
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#include "BKE_modifier.h"
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#include "BKE_pointcache.h"
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#include "DEG_depsgraph_physics.h"
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#include "DEG_depsgraph_query.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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ClothModifierData *clmd = (ClothModifierData *) md;
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clmd->sim_parms = MEM_callocN(sizeof(ClothSimSettings), "cloth sim parms");
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clmd->coll_parms = MEM_callocN(sizeof(ClothCollSettings), "cloth coll parms");
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clmd->point_cache = BKE_ptcache_add(&clmd->ptcaches);
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/* check for alloc failing */
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if (!clmd->sim_parms || !clmd->coll_parms || !clmd->point_cache)
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return;
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cloth_init(clmd);
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}
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static void deformVerts(
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ModifierData *md, const ModifierEvalContext *ctx,
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Mesh *mesh, float (*vertexCos)[3],
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int numVerts)
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{
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Mesh *mesh_src;
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ClothModifierData *clmd = (ClothModifierData *) md;
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Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
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/* check for alloc failing */
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if (!clmd->sim_parms || !clmd->coll_parms) {
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initData(md);
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if (!clmd->sim_parms || !clmd->coll_parms)
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return;
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}
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if (mesh == NULL) {
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mesh_src = MOD_deform_mesh_eval_get(ctx->object, NULL, NULL, NULL, numVerts, false, false);
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}
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else {
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/* Not possible to use get_mesh() in this case as we'll modify its vertices
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* and get_mesh() would return 'mesh' directly. */
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BKE_id_copy_ex(NULL, (ID *)mesh, (ID **)&mesh_src, LIB_ID_COPY_LOCALIZE);
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}
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/* TODO(sergey): For now it actually duplicates logic from DerivedMesh.c
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* and needs some more generic solution. But starting experimenting with
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* this so close to the release is not that nice..
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*
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* Also hopefully new cloth system will arrive soon..
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*/
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if (mesh == NULL && clmd->sim_parms->shapekey_rest) {
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KeyBlock *kb = BKE_keyblock_from_key(BKE_key_from_object(ctx->object),
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clmd->sim_parms->shapekey_rest);
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if (kb && kb->data != NULL) {
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float (*layerorco)[3];
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if (!(layerorco = CustomData_get_layer(&mesh_src->vdata, CD_CLOTH_ORCO))) {
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layerorco = CustomData_add_layer(&mesh_src->vdata, CD_CLOTH_ORCO, CD_CALLOC, NULL, mesh_src->totvert);
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}
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memcpy(layerorco, kb->data, sizeof(float) * 3 * numVerts);
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}
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}
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BKE_mesh_apply_vert_coords(mesh_src, vertexCos);
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clothModifier_do(clmd, ctx->depsgraph, scene, ctx->object, mesh_src, vertexCos);
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BKE_id_free(NULL, mesh_src);
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}
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static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphContext *ctx)
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{
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ClothModifierData *clmd = (ClothModifierData *)md;
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if (clmd != NULL) {
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DEG_add_collision_relations(ctx->node, ctx->object, clmd->coll_parms->group, eModifierType_Collision, NULL, "Cloth Collision");
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DEG_add_forcefield_relations(ctx->node, ctx->object, clmd->sim_parms->effector_weights, true, 0, "Cloth Field");
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}
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DEG_add_modifier_to_transform_relation(ctx->node, "Cloth Modifier");
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}
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static void requiredDataMask(Object *UNUSED(ob), ModifierData *md, CustomData_MeshMasks *r_cddata_masks)
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{
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ClothModifierData *clmd = (ClothModifierData *)md;
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if (cloth_uses_vgroup(clmd)) {
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r_cddata_masks->vmask |= CD_MASK_MDEFORMVERT;
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}
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if (clmd->sim_parms->shapekey_rest != 0) {
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r_cddata_masks->vmask |= CD_MASK_CLOTH_ORCO;
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}
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}
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static void copyData(const ModifierData *md, ModifierData *target, const int flag)
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{
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const ClothModifierData *clmd = (const ClothModifierData *) md;
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ClothModifierData *tclmd = (ClothModifierData *) target;
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if (tclmd->sim_parms) {
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if (tclmd->sim_parms->effector_weights)
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MEM_freeN(tclmd->sim_parms->effector_weights);
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MEM_freeN(tclmd->sim_parms);
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}
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if (tclmd->coll_parms)
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MEM_freeN(tclmd->coll_parms);
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BKE_ptcache_free_list(&tclmd->ptcaches);
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if (flag & LIB_ID_CREATE_NO_MAIN) {
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/* Share the cache with the original object's modifier. */
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tclmd->modifier.flag |= eModifierFlag_SharedCaches;
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tclmd->ptcaches = clmd->ptcaches;
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tclmd->point_cache = clmd->point_cache;
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}
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else {
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tclmd->point_cache = BKE_ptcache_add(&tclmd->ptcaches);
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tclmd->point_cache->step = 1;
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}
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tclmd->sim_parms = MEM_dupallocN(clmd->sim_parms);
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if (clmd->sim_parms->effector_weights)
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tclmd->sim_parms->effector_weights = MEM_dupallocN(clmd->sim_parms->effector_weights);
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tclmd->coll_parms = MEM_dupallocN(clmd->coll_parms);
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tclmd->clothObject = NULL;
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tclmd->hairdata = NULL;
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tclmd->solver_result = NULL;
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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 freeData(ModifierData *md)
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{
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ClothModifierData *clmd = (ClothModifierData *) md;
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if (clmd) {
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if (G.debug & G_DEBUG_SIMDATA) {
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printf("clothModifier_freeData\n");
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}
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cloth_free_modifier_extern(clmd);
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if (clmd->sim_parms) {
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if (clmd->sim_parms->effector_weights)
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MEM_freeN(clmd->sim_parms->effector_weights);
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MEM_freeN(clmd->sim_parms);
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}
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if (clmd->coll_parms)
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MEM_freeN(clmd->coll_parms);
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if (md->flag & eModifierFlag_SharedCaches) {
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BLI_listbase_clear(&clmd->ptcaches);
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}
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else {
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BKE_ptcache_free_list(&clmd->ptcaches);
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}
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clmd->point_cache = NULL;
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if (clmd->hairdata)
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MEM_freeN(clmd->hairdata);
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if (clmd->solver_result)
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MEM_freeN(clmd->solver_result);
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}
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}
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static void foreachIDLink(
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ModifierData *md, Object *ob,
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IDWalkFunc walk, void *userData)
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{
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ClothModifierData *clmd = (ClothModifierData *) md;
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if (clmd->coll_parms) {
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walk(userData, ob, (ID **)&clmd->coll_parms->group, IDWALK_CB_NOP);
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}
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if (clmd->sim_parms && clmd->sim_parms->effector_weights) {
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walk(userData, ob, (ID **)&clmd->sim_parms->effector_weights->group, IDWALK_CB_NOP);
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}
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}
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ModifierTypeInfo modifierType_Cloth = {
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/* name */ "Cloth",
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/* structName */ "ClothModifierData",
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/* structSize */ sizeof(ClothModifierData),
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/* type */ eModifierTypeType_OnlyDeform,
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/* flags */ eModifierTypeFlag_AcceptsMesh |
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eModifierTypeFlag_UsesPointCache |
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eModifierTypeFlag_Single,
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/* copyData */ copyData,
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/* deformVerts_DM */ NULL,
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/* deformMatrices_DM */ NULL,
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/* deformVertsEM_DM */ NULL,
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/* deformMatricesEM_DM*/NULL,
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/* applyModifier_DM */ 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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/* initData */ initData,
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/* requiredDataMask */ requiredDataMask,
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/* freeData */ freeData,
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/* isDisabled */ NULL,
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/* updateDepsgraph */ updateDepsgraph,
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/* dependsOnTime */ dependsOnTime,
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/* dependsOnNormals */ NULL,
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/* foreachObjectLink */ NULL,
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/* foreachIDLink */ foreachIDLink,
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/* foreachTexLink */ NULL,
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};
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