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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* Contributor(s): Campbell Barton
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/modifiers/intern/MOD_meshcache.c
* \ingroup modifiers
*/
#include <stdio.h>
#include "DNA_scene_types.h"
#include "DNA_object_types.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "BLI_utildefines.h"
#include "BLI_string.h"
#include "BLI_path_util.h"
#include "BLI_math.h"
#include "BKE_scene.h"
#include "BKE_global.h"
#include "BKE_mesh.h"
#include "BKE_main.h"
#include "DEG_depsgraph_query.h"
#include "MEM_guardedalloc.h"
#include "MOD_meshcache_util.h" /* utility functions */
#include "MOD_modifiertypes.h"
static void initData(ModifierData *md)
{
MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
mcmd->flag = 0;
mcmd->type = MOD_MESHCACHE_TYPE_MDD;
mcmd->interp = MOD_MESHCACHE_INTERP_LINEAR;
mcmd->frame_scale = 1.0f;
mcmd->factor = 1.0f;
/* (Y, Z). Blender default */
mcmd->forward_axis = 1;
mcmd->up_axis = 2;
}
static bool dependsOnTime(ModifierData *md)
{
MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
return (mcmd->play_mode == MOD_MESHCACHE_PLAY_CFEA);
}
static bool isDisabled(const struct Scene *UNUSED(scene), ModifierData *md, bool UNUSED(useRenderParams))
{
MeshCacheModifierData *mcmd = (MeshCacheModifierData *) md;
/* leave it up to the modifier to check the file is valid on calculation */
return (mcmd->factor <= 0.0f) || (mcmd->filepath[0] == '\0');
}
static void meshcache_do(
MeshCacheModifierData *mcmd, Scene *scene, Object *ob,
float (*vertexCos_Real)[3], int numVerts)
{
const bool use_factor = mcmd->factor < 1.0f;
float (*vertexCos_Store)[3] = (use_factor || (mcmd->deform_mode == MOD_MESHCACHE_DEFORM_INTEGRATE)) ?
MEM_malloc_arrayN(numVerts, sizeof(*vertexCos_Store), __func__) : NULL;
float (*vertexCos)[3] = vertexCos_Store ? vertexCos_Store : vertexCos_Real;
const float fps = FPS;
char filepath[FILE_MAX];
const char *err_str = NULL;
bool ok;
float time;
/* -------------------------------------------------------------------- */
/* Interpret Time (the reading functions also do some of this ) */
if (mcmd->play_mode == MOD_MESHCACHE_PLAY_CFEA) {
const float cfra = BKE_scene_frame_get(scene);
switch (mcmd->time_mode) {
case MOD_MESHCACHE_TIME_FRAME:
{
time = cfra;
break;
}
case MOD_MESHCACHE_TIME_SECONDS:
{
time = cfra / fps;
break;
}
case MOD_MESHCACHE_TIME_FACTOR:
default:
{
time = cfra / fps;
break;
}
}
/* apply offset and scale */
time = (mcmd->frame_scale * time) - mcmd->frame_start;
}
else { /* if (mcmd->play_mode == MOD_MESHCACHE_PLAY_EVAL) { */
switch (mcmd->time_mode) {
case MOD_MESHCACHE_TIME_FRAME:
{
time = mcmd->eval_frame;
break;
}
case MOD_MESHCACHE_TIME_SECONDS:
{
time = mcmd->eval_time;
break;
}
case MOD_MESHCACHE_TIME_FACTOR:
default:
{
time = mcmd->eval_factor;
break;
}
}
}
/* -------------------------------------------------------------------- */
/* Read the File (or error out when the file is bad) */
/* would be nice if we could avoid doing this _every_ frame */
BLI_strncpy(filepath, mcmd->filepath, sizeof(filepath));
BLI_path_abs(filepath, ID_BLEND_PATH_FROM_GLOBAL((ID *)ob));
switch (mcmd->type) {
case MOD_MESHCACHE_TYPE_MDD:
ok = MOD_meshcache_read_mdd_times(filepath, vertexCos, numVerts,
mcmd->interp, time, fps, mcmd->time_mode, &err_str);
break;
case MOD_MESHCACHE_TYPE_PC2:
ok = MOD_meshcache_read_pc2_times(filepath, vertexCos, numVerts,
mcmd->interp, time, fps, mcmd->time_mode, &err_str);
break;
default:
ok = false;
break;
}
/* -------------------------------------------------------------------- */
/* tricky shape key integration (slow!) */
if (mcmd->deform_mode == MOD_MESHCACHE_DEFORM_INTEGRATE) {
Mesh *me = ob->data;
/* we could support any object type */
if (UNLIKELY(ob->type != OB_MESH)) {
modifier_setError(&mcmd->modifier, "'Integrate' only valid for Mesh objects");
}
else if (UNLIKELY(me->totvert != numVerts)) {
modifier_setError(&mcmd->modifier, "'Integrate' original mesh vertex mismatch");
}
else if (UNLIKELY(me->totpoly == 0)) {
modifier_setError(&mcmd->modifier, "'Integrate' requires faces");
}
else {
/* the moons align! */
int i;
float (*vertexCos_Source)[3] = MEM_malloc_arrayN(numVerts, sizeof(*vertexCos_Source), __func__);
float (*vertexCos_New)[3] = MEM_malloc_arrayN(numVerts, sizeof(*vertexCos_New), __func__);
MVert *mv = me->mvert;
for (i = 0; i < numVerts; i++, mv++) {
copy_v3_v3(vertexCos_Source[i], mv->co);
}
BKE_mesh_calc_relative_deform(
me->mpoly, me->totpoly,
me->mloop, me->totvert,
(const float (*)[3])vertexCos_Source, /* from the original Mesh*/
(const float (*)[3])vertexCos_Real, /* the input we've been given (shape keys!) */
(const float (*)[3])vertexCos, /* the result of this modifier */
vertexCos_New /* the result of this function */
);
/* write the corrected locations back into the result */
memcpy(vertexCos, vertexCos_New, sizeof(*vertexCos) * numVerts);
MEM_freeN(vertexCos_Source);
MEM_freeN(vertexCos_New);
}
}
/* -------------------------------------------------------------------- */
/* Apply the transformation matrix (if needed) */
if (UNLIKELY(err_str)) {
modifier_setError(&mcmd->modifier, "%s", err_str);
}
else if (ok) {
bool use_matrix = false;
float mat[3][3];
unit_m3(mat);
if (mat3_from_axis_conversion(mcmd->forward_axis, mcmd->up_axis, 1, 2, mat)) {
use_matrix = true;
}
if (mcmd->flip_axis) {
float tmat[3][3];
unit_m3(tmat);
if (mcmd->flip_axis & (1 << 0)) tmat[0][0] = -1.0f;
if (mcmd->flip_axis & (1 << 1)) tmat[1][1] = -1.0f;
if (mcmd->flip_axis & (1 << 2)) tmat[2][2] = -1.0f;
mul_m3_m3m3(mat, tmat, mat);
use_matrix = true;
}
if (use_matrix) {
int i;
for (i = 0; i < numVerts; i++) {
mul_m3_v3(mat, vertexCos[i]);
}
}
}
if (vertexCos_Store) {
if (ok) {
if (use_factor) {
interp_vn_vn(*vertexCos_Real, *vertexCos_Store, mcmd->factor, numVerts * 3);
}
else {
memcpy(vertexCos_Real, vertexCos_Store, sizeof(*vertexCos_Store) * numVerts);
}
}
MEM_freeN(vertexCos_Store);
}
}
static void deformVerts(
ModifierData *md, const ModifierEvalContext *ctx,
Mesh *UNUSED(mesh),
float (*vertexCos)[3],
int numVerts)
{
MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
meshcache_do(mcmd, scene, ctx->object, vertexCos, numVerts);
}
static void deformVertsEM(
ModifierData *md, const ModifierEvalContext *ctx,
struct BMEditMesh *UNUSED(editData),
Mesh *UNUSED(mesh),
float (*vertexCos)[3],
int numVerts)
{
MeshCacheModifierData *mcmd = (MeshCacheModifierData *)md;
Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
meshcache_do(mcmd, scene, ctx->object, vertexCos, numVerts);
}
ModifierTypeInfo modifierType_MeshCache = {
/* name */ "Mesh Cache",
/* structName */ "MeshCacheModifierData",
/* structSize */ sizeof(MeshCacheModifierData),
/* type */ eModifierTypeType_OnlyDeform,
/* flags */ eModifierTypeFlag_AcceptsCVs |
eModifierTypeFlag_AcceptsLattice |
eModifierTypeFlag_SupportsEditmode,
/* copyData */ modifier_copyData_generic,
/* deformVerts_DM */ NULL,
/* deformMatrices_DM */ NULL,
/* deformVertsEM_DM */ NULL,
/* deformMatricesEM_DM*/NULL,
/* applyModifier_DM */ NULL,
/* deformVerts */ deformVerts,
/* deformMatrices */ NULL,
/* deformVertsEM */ deformVertsEM,
/* deformMatricesEM */ NULL,
/* applyModifier */ NULL,
/* initData */ initData,
/* requiredDataMask */ NULL,
/* freeData */ NULL,
/* isDisabled */ isDisabled,
/* updateDepsgraph */ NULL,
/* dependsOnTime */ dependsOnTime,
/* dependsOnNormals */ NULL,
/* foreachObjectLink */ NULL,
/* foreachIDLink */ NULL,
/* foreachTexLink */ NULL,
};
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