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blender-archive/source/blender/modifiers/intern/MOD_fluidsim.c

159 lines
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C

/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2005 by the Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup modifiers
*/
#include "BLI_utildefines.h"
#include "DNA_mesh_types.h"
#include "DNA_scene_types.h"
#include "DNA_object_fluidsim_types.h"
#include "DNA_object_types.h"
#include "BKE_layer.h"
#include "BKE_modifier.h"
#include "DEG_depsgraph_build.h"
#include "MOD_fluidsim_util.h"
#include "MOD_modifiertypes.h"
#include "MEM_guardedalloc.h"
/* Fluidsim */
static void initData(ModifierData *md)
{
FluidsimModifierData *fluidmd = (FluidsimModifierData *) md;
fluidsim_init(fluidmd);
}
static void freeData(ModifierData *md)
{
FluidsimModifierData *fluidmd = (FluidsimModifierData *) md;
fluidsim_free(fluidmd);
}
static void copyData(const ModifierData *md, ModifierData *target, const int UNUSED(flag))
{
const FluidsimModifierData *fluidmd = (const FluidsimModifierData *) md;
FluidsimModifierData *tfluidmd = (FluidsimModifierData *) target;
/* Free any FSS that was allocated in initData() */
if (tfluidmd->fss) {
MEM_SAFE_FREE(tfluidmd->fss->meshVelocities);
MEM_freeN(tfluidmd->fss);
}
if (fluidmd->fss == NULL) {
tfluidmd->fss = NULL;
return;
}
tfluidmd->fss = MEM_dupallocN(fluidmd->fss);
if (tfluidmd->fss->meshVelocities != NULL) {
tfluidmd->fss->meshVelocities = MEM_dupallocN(tfluidmd->fss->meshVelocities);
}
}
static Mesh *applyModifier(
ModifierData *md, const ModifierEvalContext *ctx,
Mesh *mesh)
{
FluidsimModifierData *fluidmd = (FluidsimModifierData *) md;
Mesh *result = NULL;
/* check for alloc failing */
if (!fluidmd->fss) {
initData(md);
if (!fluidmd->fss) {
return mesh;
}
}
result = fluidsimModifier_do(fluidmd, ctx, mesh);
return result ? result : mesh;
}
static void updateDepsgraph(ModifierData *md, const ModifierUpdateDepsgraphContext *ctx)
{
FluidsimModifierData *fluidmd = (FluidsimModifierData *) md;
if (fluidmd && fluidmd->fss) {
if (fluidmd->fss->type == OB_FLUIDSIM_DOMAIN) {
FOREACH_SCENE_OBJECT_BEGIN(ctx->scene, ob1)
{
if (ob1 != ctx->object) {
FluidsimModifierData *fluidmdtmp =
(FluidsimModifierData *)modifiers_findByType(ob1, eModifierType_Fluidsim);
/* Only put dependencies from NON-DOMAIN fluids in here. */
if (fluidmdtmp && fluidmdtmp->fss && (fluidmdtmp->fss->type != OB_FLUIDSIM_DOMAIN)) {
DEG_add_object_relation(ctx->node, ob1, DEG_OB_COMP_TRANSFORM, "Fluidsim Object");
}
}
}
FOREACH_SCENE_OBJECT_END;
}
}
}
static bool dependsOnTime(ModifierData *UNUSED(md))
{
return true;
}
ModifierTypeInfo modifierType_Fluidsim = {
/* name */ "Fluidsim",
/* structName */ "FluidsimModifierData",
/* structSize */ sizeof(FluidsimModifierData),
/* type */ eModifierTypeType_Nonconstructive,
/* flags */ eModifierTypeFlag_AcceptsMesh |
eModifierTypeFlag_RequiresOriginalData |
eModifierTypeFlag_Single,
/* copyData */ copyData,
/* deformVerts */ NULL,
/* deformMatrices */ NULL,
/* deformVertsEM */ NULL,
/* deformMatricesEM */ NULL,
/* applyModifier */ applyModifier,
/* initData */ initData,
/* requiredDataMask */ NULL,
/* freeData */ freeData,
/* isDisabled */ NULL,
/* updateDepsgraph */ updateDepsgraph,
/* dependsOnTime */ dependsOnTime,
/* dependsOnNormals */ NULL,
/* foreachObjectLink */ NULL,
/* foreachIDLink */ NULL,
/* foreachTexLink */ NULL,
/* freeRuntimeData */ NULL,
};