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ba4a2a4c8b827201b18e97d9dd025ef93a4db754
blender-archive/source/blender/modifiers/intern/MOD_explode.c
Hans Goudey ba4a2a4c8b UI: Use instanced panel custom data instead of list index 
For modifier shortcuts we added a "custom_data" field to panels.
This commit uses the same system for accessing the list data that
corresponds to each panel. This way the context is only used once
and the modifier for each panel can be accessed more easily later.

This ends up being mostly a cleanup commit with a few small changes
in interface_panel.c. The large changes in the UI functions are due
to the fact that the panel custom data is now passed around as a
single pointer instead of being created again for every panel.

The list_index variable in Panel.runtime is removed as it's now
unnecessary.

Differential Revision: https://developer.blender.org/D8559
2020-09-02 14:13:26 -05:00

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/*
* 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 "BLI_edgehash.h"
#include "BLI_kdtree.h"
#include "BLI_math.h"
#include "BLI_rand.h"
#include "BLT_translation.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "BKE_context.h"
#include "BKE_deform.h"
#include "BKE_lattice.h"
#include "BKE_lib_id.h"
#include "BKE_mesh.h"
#include "BKE_modifier.h"
#include "BKE_particle.h"
#include "BKE_scene.h"
#include "BKE_screen.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "BLO_read_write.h"
#include "RNA_access.h"
#include "DEG_depsgraph_query.h"
#include "MEM_guardedalloc.h"
#include "MOD_modifiertypes.h"
#include "MOD_ui_common.h"
static void initData(ModifierData *md)
{
ExplodeModifierData *emd = (ExplodeModifierData *)md;
emd->facepa = NULL;
emd->flag |= eExplodeFlag_Unborn + eExplodeFlag_Alive + eExplodeFlag_Dead;
}
static void freeData(ModifierData *md)
{
ExplodeModifierData *emd = (ExplodeModifierData *)md;
MEM_SAFE_FREE(emd->facepa);
}
static void copyData(const ModifierData *md, ModifierData *target, const int flag)
{
#if 0
const ExplodeModifierData *emd = (const ExplodeModifierData *)md;
#endif
ExplodeModifierData *temd = (ExplodeModifierData *)target;
BKE_modifier_copydata_generic(md, target, flag);
temd->facepa = NULL;
}
static bool dependsOnTime(ModifierData *UNUSED(md))
{
return true;
}
static void requiredDataMask(Object *UNUSED(ob),
ModifierData *md,
CustomData_MeshMasks *r_cddata_masks)
{
ExplodeModifierData *emd = (ExplodeModifierData *)md;
if (emd->vgroup) {
r_cddata_masks->vmask |= CD_MASK_MDEFORMVERT;
}
}
static void createFacepa(ExplodeModifierData *emd, ParticleSystemModifierData *psmd, Mesh *mesh)
{
ParticleSystem *psys = psmd->psys;
MFace *fa = NULL, *mface = NULL;
MVert *mvert = NULL;
ParticleData *pa;
KDTree_3d *tree;
RNG *rng;
float center[3], co[3];
int *facepa = NULL, *vertpa = NULL, totvert = 0, totface = 0, totpart = 0;
int i, p, v1, v2, v3, v4 = 0;
const bool invert_vgroup = (emd->flag & eExplodeFlag_INVERT_VGROUP) != 0;
mvert = mesh->mvert;
mface = mesh->mface;
totvert = mesh->totvert;
totface = mesh->totface;
totpart = psmd->psys->totpart;
rng = BLI_rng_new_srandom(psys->seed);
if (emd->facepa) {
MEM_freeN(emd->facepa);
}
facepa = emd->facepa = MEM_calloc_arrayN(totface, sizeof(int), "explode_facepa");
vertpa = MEM_calloc_arrayN(totvert, sizeof(int), "explode_vertpa");
/* initialize all faces & verts to no particle */
for (i = 0; i < totface; i++) {
facepa[i] = totpart;
}
for (i = 0; i < totvert; i++) {
vertpa[i] = totpart;
}
/* set protected verts */
if (emd->vgroup) {
MDeformVert *dvert = CustomData_get_layer(&mesh->vdata, CD_MDEFORMVERT);
if (dvert) {
const int defgrp_index = emd->vgroup - 1;
for (i = 0; i < totvert; i++, dvert++) {
float val = BLI_rng_get_float(rng);
val = (1.0f - emd->protect) * val + emd->protect * 0.5f;
const float weight = invert_vgroup ? 1.0f - BKE_defvert_find_weight(dvert, defgrp_index) :
BKE_defvert_find_weight(dvert, defgrp_index);
if (val < weight) {
vertpa[i] = -1;
}
}
}
}
/* make tree of emitter locations */
tree = BLI_kdtree_3d_new(totpart);
for (p = 0, pa = psys->particles; p < totpart; p++, pa++) {
psys_particle_on_emitter(psmd,
psys->part->from,
pa->num,
pa->num_dmcache,
pa->fuv,
pa->foffset,
co,
NULL,
NULL,
NULL,
NULL);
BLI_kdtree_3d_insert(tree, p, co);
}
BLI_kdtree_3d_balance(tree);
/* set face-particle-indexes to nearest particle to face center */
for (i = 0, fa = mface; i < totface; i++, fa++) {
add_v3_v3v3(center, mvert[fa->v1].co, mvert[fa->v2].co);
add_v3_v3(center, mvert[fa->v3].co);
if (fa->v4) {
add_v3_v3(center, mvert[fa->v4].co);
mul_v3_fl(center, 0.25);
}
else {
mul_v3_fl(center, 1.0f / 3.0f);
}
p = BLI_kdtree_3d_find_nearest(tree, center, NULL);
v1 = vertpa[fa->v1];
v2 = vertpa[fa->v2];
v3 = vertpa[fa->v3];
if (fa->v4) {
v4 = vertpa[fa->v4];
}
if (v1 >= 0 && v2 >= 0 && v3 >= 0 && (fa->v4 == 0 || v4 >= 0)) {
facepa[i] = p;
}
if (v1 >= 0) {
vertpa[fa->v1] = p;
}
if (v2 >= 0) {
vertpa[fa->v2] = p;
}
if (v3 >= 0) {
vertpa[fa->v3] = p;
}
if (fa->v4 && v4 >= 0) {
vertpa[fa->v4] = p;
}
}
if (vertpa) {
MEM_freeN(vertpa);
}
BLI_kdtree_3d_free(tree);
BLI_rng_free(rng);
}
static int edgecut_get(EdgeHash *edgehash, uint v1, uint v2)
{
return POINTER_AS_INT(BLI_edgehash_lookup(edgehash, v1, v2));
}
static const short add_faces[24] = {
0, 0, 0, 2, 0, 1, 2, 2, 0, 2, 1, 2, 2, 2, 2, 3, 0, 0, 0, 1, 0, 1, 1, 2,
};
static MFace *get_dface(Mesh *mesh, Mesh *split, int cur, int i, MFace *mf)
{
MFace *df = &split->mface[cur];
CustomData_copy_data(&mesh->fdata, &split->fdata, i, cur, 1);
*df = *mf;
return df;
}
#define SET_VERTS(a, b, c, d) \
{ \
v[0] = mf->v##a; \
uv[0] = a - 1; \
v[1] = mf->v##b; \
uv[1] = b - 1; \
v[2] = mf->v##c; \
uv[2] = c - 1; \
v[3] = mf->v##d; \
uv[3] = d - 1; \
} \
(void)0
#define GET_ES(v1, v2) edgecut_get(eh, v1, v2)
#define INT_UV(uvf, c0, c1) mid_v2_v2v2(uvf, mf->uv[c0], mf->uv[c1])
static void remap_faces_3_6_9_12(Mesh *mesh,
Mesh *split,
MFace *mf,
int *facepa,
const int *vertpa,
int i,
EdgeHash *eh,
int cur,
int v1,
int v2,
int v3,
int v4)
{
MFace *df1 = get_dface(mesh, split, cur, i, mf);
MFace *df2 = get_dface(mesh, split, cur + 1, i, mf);
MFace *df3 = get_dface(mesh, split, cur + 2, i, mf);
facepa[cur] = vertpa[v1];
df1->v1 = v1;
df1->v2 = GET_ES(v1, v2);
df1->v3 = GET_ES(v2, v3);
df1->v4 = v3;
df1->flag |= ME_FACE_SEL;
facepa[cur + 1] = vertpa[v2];
df2->v1 = GET_ES(v1, v2);
df2->v2 = v2;
df2->v3 = GET_ES(v2, v3);
df2->v4 = 0;
df2->flag &= ~ME_FACE_SEL;
facepa[cur + 2] = vertpa[v1];
df3->v1 = v1;
df3->v2 = v3;
df3->v3 = v4;
df3->v4 = 0;
df3->flag &= ~ME_FACE_SEL;
}
static void remap_uvs_3_6_9_12(
Mesh *mesh, Mesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
{
MTFace *mf, *df1, *df2, *df3;
int l;
for (l = 0; l < numlayer; l++) {
mf = CustomData_get_layer_n(&split->fdata, CD_MTFACE, l);
df1 = mf + cur;
df2 = df1 + 1;
df3 = df1 + 2;
mf = CustomData_get_layer_n(&mesh->fdata, CD_MTFACE, l);
mf += i;
copy_v2_v2(df1->uv[0], mf->uv[c0]);
INT_UV(df1->uv[1], c0, c1);
INT_UV(df1->uv[2], c1, c2);
copy_v2_v2(df1->uv[3], mf->uv[c2]);
INT_UV(df2->uv[0], c0, c1);
copy_v2_v2(df2->uv[1], mf->uv[c1]);
INT_UV(df2->uv[2], c1, c2);
copy_v2_v2(df3->uv[0], mf->uv[c0]);
copy_v2_v2(df3->uv[1], mf->uv[c2]);
copy_v2_v2(df3->uv[2], mf->uv[c3]);
}
}
static void remap_faces_5_10(Mesh *mesh,
Mesh *split,
MFace *mf,
int *facepa,
const int *vertpa,
int i,
EdgeHash *eh,
int cur,
int v1,
int v2,
int v3,
int v4)
{
MFace *df1 = get_dface(mesh, split, cur, i, mf);
MFace *df2 = get_dface(mesh, split, cur + 1, i, mf);
facepa[cur] = vertpa[v1];
df1->v1 = v1;
df1->v2 = v2;
df1->v3 = GET_ES(v2, v3);
df1->v4 = GET_ES(v1, v4);
df1->flag |= ME_FACE_SEL;
facepa[cur + 1] = vertpa[v3];
df2->v1 = GET_ES(v1, v4);
df2->v2 = GET_ES(v2, v3);
df2->v3 = v3;
df2->v4 = v4;
df2->flag |= ME_FACE_SEL;
}
static void remap_uvs_5_10(
Mesh *mesh, Mesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
{
MTFace *mf, *df1, *df2;
int l;
for (l = 0; l < numlayer; l++) {
mf = CustomData_get_layer_n(&split->fdata, CD_MTFACE, l);
df1 = mf + cur;
df2 = df1 + 1;
mf = CustomData_get_layer_n(&mesh->fdata, CD_MTFACE, l);
mf += i;
copy_v2_v2(df1->uv[0], mf->uv[c0]);
copy_v2_v2(df1->uv[1], mf->uv[c1]);
INT_UV(df1->uv[2], c1, c2);
INT_UV(df1->uv[3], c0, c3);
INT_UV(df2->uv[0], c0, c3);
INT_UV(df2->uv[1], c1, c2);
copy_v2_v2(df2->uv[2], mf->uv[c2]);
copy_v2_v2(df2->uv[3], mf->uv[c3]);
}
}
static void remap_faces_15(Mesh *mesh,
Mesh *split,
MFace *mf,
int *facepa,
const int *vertpa,
int i,
EdgeHash *eh,
int cur,
int v1,
int v2,
int v3,
int v4)
{
MFace *df1 = get_dface(mesh, split, cur, i, mf);
MFace *df2 = get_dface(mesh, split, cur + 1, i, mf);
MFace *df3 = get_dface(mesh, split, cur + 2, i, mf);
MFace *df4 = get_dface(mesh, split, cur + 3, i, mf);
facepa[cur] = vertpa[v1];
df1->v1 = v1;
df1->v2 = GET_ES(v1, v2);
df1->v3 = GET_ES(v1, v3);
df1->v4 = GET_ES(v1, v4);
df1->flag |= ME_FACE_SEL;
facepa[cur + 1] = vertpa[v2];
df2->v1 = GET_ES(v1, v2);
df2->v2 = v2;
df2->v3 = GET_ES(v2, v3);
df2->v4 = GET_ES(v1, v3);
df2->flag |= ME_FACE_SEL;
facepa[cur + 2] = vertpa[v3];
df3->v1 = GET_ES(v1, v3);
df3->v2 = GET_ES(v2, v3);
df3->v3 = v3;
df3->v4 = GET_ES(v3, v4);
df3->flag |= ME_FACE_SEL;
facepa[cur + 3] = vertpa[v4];
df4->v1 = GET_ES(v1, v4);
df4->v2 = GET_ES(v1, v3);
df4->v3 = GET_ES(v3, v4);
df4->v4 = v4;
df4->flag |= ME_FACE_SEL;
}
static void remap_uvs_15(
Mesh *mesh, Mesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
{
MTFace *mf, *df1, *df2, *df3, *df4;
int l;
for (l = 0; l < numlayer; l++) {
mf = CustomData_get_layer_n(&split->fdata, CD_MTFACE, l);
df1 = mf + cur;
df2 = df1 + 1;
df3 = df1 + 2;
df4 = df1 + 3;
mf = CustomData_get_layer_n(&mesh->fdata, CD_MTFACE, l);
mf += i;
copy_v2_v2(df1->uv[0], mf->uv[c0]);
INT_UV(df1->uv[1], c0, c1);
INT_UV(df1->uv[2], c0, c2);
INT_UV(df1->uv[3], c0, c3);
INT_UV(df2->uv[0], c0, c1);
copy_v2_v2(df2->uv[1], mf->uv[c1]);
INT_UV(df2->uv[2], c1, c2);
INT_UV(df2->uv[3], c0, c2);
INT_UV(df3->uv[0], c0, c2);
INT_UV(df3->uv[1], c1, c2);
copy_v2_v2(df3->uv[2], mf->uv[c2]);
INT_UV(df3->uv[3], c2, c3);
INT_UV(df4->uv[0], c0, c3);
INT_UV(df4->uv[1], c0, c2);
INT_UV(df4->uv[2], c2, c3);
copy_v2_v2(df4->uv[3], mf->uv[c3]);
}
}
static void remap_faces_7_11_13_14(Mesh *mesh,
Mesh *split,
MFace *mf,
int *facepa,
const int *vertpa,
int i,
EdgeHash *eh,
int cur,
int v1,
int v2,
int v3,
int v4)
{
MFace *df1 = get_dface(mesh, split, cur, i, mf);
MFace *df2 = get_dface(mesh, split, cur + 1, i, mf);
MFace *df3 = get_dface(mesh, split, cur + 2, i, mf);
facepa[cur] = vertpa[v1];
df1->v1 = v1;
df1->v2 = GET_ES(v1, v2);
df1->v3 = GET_ES(v2, v3);
df1->v4 = GET_ES(v1, v4);
df1->flag |= ME_FACE_SEL;
facepa[cur + 1] = vertpa[v2];
df2->v1 = GET_ES(v1, v2);
df2->v2 = v2;
df2->v3 = GET_ES(v2, v3);
df2->v4 = 0;
df2->flag &= ~ME_FACE_SEL;
facepa[cur + 2] = vertpa[v4];
df3->v1 = GET_ES(v1, v4);
df3->v2 = GET_ES(v2, v3);
df3->v3 = v3;
df3->v4 = v4;
df3->flag |= ME_FACE_SEL;
}
static void remap_uvs_7_11_13_14(
Mesh *mesh, Mesh *split, int numlayer, int i, int cur, int c0, int c1, int c2, int c3)
{
MTFace *mf, *df1, *df2, *df3;
int l;
for (l = 0; l < numlayer; l++) {
mf = CustomData_get_layer_n(&split->fdata, CD_MTFACE, l);
df1 = mf + cur;
df2 = df1 + 1;
df3 = df1 + 2;
mf = CustomData_get_layer_n(&mesh->fdata, CD_MTFACE, l);
mf += i;
copy_v2_v2(df1->uv[0], mf->uv[c0]);
INT_UV(df1->uv[1], c0, c1);
INT_UV(df1->uv[2], c1, c2);
INT_UV(df1->uv[3], c0, c3);
INT_UV(df2->uv[0], c0, c1);
copy_v2_v2(df2->uv[1], mf->uv[c1]);
INT_UV(df2->uv[2], c1, c2);
INT_UV(df3->uv[0], c0, c3);
INT_UV(df3->uv[1], c1, c2);
copy_v2_v2(df3->uv[2], mf->uv[c2]);
copy_v2_v2(df3->uv[3], mf->uv[c3]);
}
}
static void remap_faces_19_21_22(Mesh *mesh,
Mesh *split,
MFace *mf,
int *facepa,
const int *vertpa,
int i,
EdgeHash *eh,
int cur,
int v1,
int v2,
int v3)
{
MFace *df1 = get_dface(mesh, split, cur, i, mf);
MFace *df2 = get_dface(mesh, split, cur + 1, i, mf);
facepa[cur] = vertpa[v1];
df1->v1 = v1;
df1->v2 = GET_ES(v1, v2);
df1->v3 = GET_ES(v1, v3);
df1->v4 = 0;
df1->flag &= ~ME_FACE_SEL;
facepa[cur + 1] = vertpa[v2];
df2->v1 = GET_ES(v1, v2);
df2->v2 = v2;
df2->v3 = v3;
df2->v4 = GET_ES(v1, v3);
df2->flag |= ME_FACE_SEL;
}
static void remap_uvs_19_21_22(
Mesh *mesh, Mesh *split, int numlayer, int i, int cur, int c0, int c1, int c2)
{
MTFace *mf, *df1, *df2;
int l;
for (l = 0; l < numlayer; l++) {
mf = CustomData_get_layer_n(&split->fdata, CD_MTFACE, l);
df1 = mf + cur;
df2 = df1 + 1;
mf = CustomData_get_layer_n(&mesh->fdata, CD_MTFACE, l);
mf += i;
copy_v2_v2(df1->uv[0], mf->uv[c0]);
INT_UV(df1->uv[1], c0, c1);
INT_UV(df1->uv[2], c0, c2);
INT_UV(df2->uv[0], c0, c1);
copy_v2_v2(df2->uv[1], mf->uv[c1]);
copy_v2_v2(df2->uv[2], mf->uv[c2]);
INT_UV(df2->uv[3], c0, c2);
}
}
static void remap_faces_23(Mesh *mesh,
Mesh *split,
MFace *mf,
int *facepa,
const int *vertpa,
int i,
EdgeHash *eh,
int cur,
int v1,
int v2,
int v3)
{
MFace *df1 = get_dface(mesh, split, cur, i, mf);
MFace *df2 = get_dface(mesh, split, cur + 1, i, mf);
MFace *df3 = get_dface(mesh, split, cur + 2, i, mf);
facepa[cur] = vertpa[v1];
df1->v1 = v1;
df1->v2 = GET_ES(v1, v2);
df1->v3 = GET_ES(v2, v3);
df1->v4 = GET_ES(v1, v3);
df1->flag |= ME_FACE_SEL;
facepa[cur + 1] = vertpa[v2];
df2->v1 = GET_ES(v1, v2);
df2->v2 = v2;
df2->v3 = GET_ES(v2, v3);
df2->v4 = 0;
df2->flag &= ~ME_FACE_SEL;
facepa[cur + 2] = vertpa[v3];
df3->v1 = GET_ES(v1, v3);
df3->v2 = GET_ES(v2, v3);
df3->v3 = v3;
df3->v4 = 0;
df3->flag &= ~ME_FACE_SEL;
}
static void remap_uvs_23(
Mesh *mesh, Mesh *split, int numlayer, int i, int cur, int c0, int c1, int c2)
{
MTFace *mf, *df1, *df2;
int l;
for (l = 0; l < numlayer; l++) {
mf = CustomData_get_layer_n(&split->fdata, CD_MTFACE, l);
df1 = mf + cur;
df2 = df1 + 1;
mf = CustomData_get_layer_n(&mesh->fdata, CD_MTFACE, l);
mf += i;
copy_v2_v2(df1->uv[0], mf->uv[c0]);
INT_UV(df1->uv[1], c0, c1);
INT_UV(df1->uv[2], c1, c2);
INT_UV(df1->uv[3], c0, c2);
INT_UV(df2->uv[0], c0, c1);
copy_v2_v2(df2->uv[1], mf->uv[c1]);
INT_UV(df2->uv[2], c1, c2);
INT_UV(df2->uv[0], c0, c2);
INT_UV(df2->uv[1], c1, c2);
copy_v2_v2(df2->uv[2], mf->uv[c2]);
}
}
static Mesh *cutEdges(ExplodeModifierData *emd, Mesh *mesh)
{
Mesh *split_m;
MFace *mf = NULL, *df1 = NULL;
MFace *mface = mesh->mface;
MVert *dupve, *mv;
EdgeHash *edgehash;
EdgeHashIterator *ehi;
int totvert = mesh->totvert;
int totface = mesh->totface;
int *facesplit = MEM_calloc_arrayN(totface, sizeof(int), "explode_facesplit");
int *vertpa = MEM_calloc_arrayN(totvert, sizeof(int), "explode_vertpa2");
int *facepa = emd->facepa;
int *fs, totesplit = 0, totfsplit = 0, curdupface = 0;
int i, v1, v2, v3, v4, esplit, v[4] = {0, 0, 0, 0}, /* To quite gcc barking... */
uv[4] = {0, 0, 0, 0}; /* To quite gcc barking... */
int numlayer;
uint ed_v1, ed_v2;
edgehash = BLI_edgehash_new(__func__);
/* recreate vertpa from facepa calculation */
for (i = 0, mf = mface; i < totface; i++, mf++) {
vertpa[mf->v1] = facepa[i];
vertpa[mf->v2] = facepa[i];
vertpa[mf->v3] = facepa[i];
if (mf->v4) {
vertpa[mf->v4] = facepa[i];
}
}
/* mark edges for splitting and how to split faces */
for (i = 0, mf = mface, fs = facesplit; i < totface; i++, mf++, fs++) {
v1 = vertpa[mf->v1];
v2 = vertpa[mf->v2];
v3 = vertpa[mf->v3];
if (v1 != v2) {
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v2, NULL);
(*fs) |= 1;
}
if (v2 != v3) {
BLI_edgehash_reinsert(edgehash, mf->v2, mf->v3, NULL);
(*fs) |= 2;
}
if (mf->v4) {
v4 = vertpa[mf->v4];
if (v3 != v4) {
BLI_edgehash_reinsert(edgehash, mf->v3, mf->v4, NULL);
(*fs) |= 4;
}
if (v1 != v4) {
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v4, NULL);
(*fs) |= 8;
}
/* mark center vertex as a fake edge split */
if (*fs == 15) {
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v3, NULL);
}
}
else {
(*fs) |= 16; /* mark face as tri */
if (v1 != v3) {
BLI_edgehash_reinsert(edgehash, mf->v1, mf->v3, NULL);
(*fs) |= 4;
}
}
}
/* count splits & create indexes for new verts */
ehi = BLI_edgehashIterator_new(edgehash);
totesplit = totvert;
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
BLI_edgehashIterator_setValue(ehi, POINTER_FROM_INT(totesplit));
totesplit++;
}
BLI_edgehashIterator_free(ehi);
/* count new faces due to splitting */
for (i = 0, fs = facesplit; i < totface; i++, fs++) {
totfsplit += add_faces[*fs];
}
split_m = BKE_mesh_new_nomain_from_template(mesh, totesplit, 0, totface + totfsplit, 0, 0);
numlayer = CustomData_number_of_layers(&split_m->fdata, CD_MTFACE);
/* copy new faces & verts (is it really this painful with custom data??) */
for (i = 0; i < totvert; i++) {
MVert source;
MVert *dest;
source = mesh->mvert[i];
dest = &split_m->mvert[i];
CustomData_copy_data(&mesh->vdata, &split_m->vdata, i, i, 1);
*dest = source;
}
/* override original facepa (original pointer is saved in caller function) */
/* BMESH_TODO, (totfsplit * 2) over allocation is used since the quads are
* later interpreted as tri's, for this to work right I think we probably
* have to stop using tessface - campbell */
facepa = MEM_calloc_arrayN((totface + (totfsplit * 2)), sizeof(int), "explode_facepa");
// memcpy(facepa, emd->facepa, totface*sizeof(int));
emd->facepa = facepa;
/* create new verts */
ehi = BLI_edgehashIterator_new(edgehash);
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
BLI_edgehashIterator_getKey(ehi, &ed_v1, &ed_v2);
esplit = POINTER_AS_INT(BLI_edgehashIterator_getValue(ehi));
mv = &split_m->mvert[ed_v2];
dupve = &split_m->mvert[esplit];
CustomData_copy_data(&split_m->vdata, &split_m->vdata, ed_v2, esplit, 1);
*dupve = *mv;
mv = &split_m->mvert[ed_v1];
mid_v3_v3v3(dupve->co, dupve->co, mv->co);
}
BLI_edgehashIterator_free(ehi);
/* create new faces */
curdupface = 0; //=totface;
// curdupin=totesplit;
for (i = 0, fs = facesplit; i < totface; i++, fs++) {
mf = &mesh->mface[i];
switch (*fs) {
case 3:
case 10:
case 11:
case 15:
SET_VERTS(1, 2, 3, 4);
break;
case 5:
case 6:
case 7:
SET_VERTS(2, 3, 4, 1);
break;
case 9:
case 13:
SET_VERTS(4, 1, 2, 3);
break;
case 12:
case 14:
SET_VERTS(3, 4, 1, 2);
break;
case 21:
case 23:
SET_VERTS(1, 2, 3, 4);
break;
case 19:
SET_VERTS(2, 3, 1, 4);
break;
case 22:
SET_VERTS(3, 1, 2, 4);
break;
}
switch (*fs) {
case 3:
case 6:
case 9:
case 12:
remap_faces_3_6_9_12(
mesh, split_m, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer) {
remap_uvs_3_6_9_12(mesh, split_m, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
}
break;
case 5:
case 10:
remap_faces_5_10(
mesh, split_m, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer) {
remap_uvs_5_10(mesh, split_m, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
}
break;
case 15:
remap_faces_15(
mesh, split_m, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer) {
remap_uvs_15(mesh, split_m, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
}
break;
case 7:
case 11:
case 13:
case 14:
remap_faces_7_11_13_14(
mesh, split_m, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2], v[3]);
if (numlayer) {
remap_uvs_7_11_13_14(mesh, split_m, numlayer, i, curdupface, uv[0], uv[1], uv[2], uv[3]);
}
break;
case 19:
case 21:
case 22:
remap_faces_19_21_22(
mesh, split_m, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2]);
if (numlayer) {
remap_uvs_19_21_22(mesh, split_m, numlayer, i, curdupface, uv[0], uv[1], uv[2]);
}
break;
case 23:
remap_faces_23(
mesh, split_m, mf, facepa, vertpa, i, edgehash, curdupface, v[0], v[1], v[2]);
if (numlayer) {
remap_uvs_23(mesh, split_m, numlayer, i, curdupface, uv[0], uv[1], uv[2]);
}
break;
case 0:
case 16:
df1 = get_dface(mesh, split_m, curdupface, i, mf);
facepa[curdupface] = vertpa[mf->v1];
if (df1->v4) {
df1->flag |= ME_FACE_SEL;
}
else {
df1->flag &= ~ME_FACE_SEL;
}
break;
}
curdupface += add_faces[*fs] + 1;
}
for (i = 0; i < curdupface; i++) {
mf = &split_m->mface[i];
test_index_face(mf, &split_m->fdata, i, ((mf->flag & ME_FACE_SEL) ? 4 : 3));
}
BLI_edgehash_free(edgehash, NULL);
MEM_freeN(facesplit);
MEM_freeN(vertpa);
BKE_mesh_calc_edges_tessface(split_m);
BKE_mesh_convert_mfaces_to_mpolys(split_m);
return split_m;
}
static Mesh *explodeMesh(ExplodeModifierData *emd,
ParticleSystemModifierData *psmd,
const ModifierEvalContext *ctx,
Scene *scene,
Mesh *to_explode)
{
Mesh *explode, *mesh = to_explode;
MFace *mf = NULL, *mface;
/* ParticleSettings *part=psmd->psys->part; */ /* UNUSED */
ParticleSimulationData sim = {NULL};
ParticleData *pa = NULL, *pars = psmd->psys->particles;
ParticleKey state, birth;
EdgeHash *vertpahash;
EdgeHashIterator *ehi;
float *vertco = NULL, imat[4][4];
float rot[4];
float cfra;
/* float timestep; */
const int *facepa = emd->facepa;
int totdup = 0, totvert = 0, totface = 0, totpart = 0, delface = 0;
int i, v, u;
uint ed_v1, ed_v2, mindex = 0;
MTFace *mtface = NULL, *mtf;
totface = mesh->totface;
totvert = mesh->totvert;
mface = mesh->mface;
totpart = psmd->psys->totpart;
sim.depsgraph = ctx->depsgraph;
sim.scene = scene;
sim.ob = ctx->object;
sim.psys = psmd->psys;
sim.psmd = psmd;
/* timestep = psys_get_timestep(&sim); */
cfra = BKE_scene_frame_get(scene);
/* hash table for vertice <-> particle relations */
vertpahash = BLI_edgehash_new(__func__);
for (i = 0; i < totface; i++) {
if (facepa[i] != totpart) {
pa = pars + facepa[i];
if ((pa->alive == PARS_UNBORN && (emd->flag & eExplodeFlag_Unborn) == 0) ||
(pa->alive == PARS_ALIVE && (emd->flag & eExplodeFlag_Alive) == 0) ||
(pa->alive == PARS_DEAD && (emd->flag & eExplodeFlag_Dead) == 0)) {
delface++;
continue;
}
}
else {
pa = NULL;
}
/* do mindex + totvert to ensure the vertex index to be the first
* with BLI_edgehashIterator_getKey */
if (pa == NULL || cfra < pa->time) {
mindex = totvert + totpart;
}
else {
mindex = totvert + facepa[i];
}
mf = &mface[i];
/* set face vertices to exist in particle group */
BLI_edgehash_reinsert(vertpahash, mf->v1, mindex, NULL);
BLI_edgehash_reinsert(vertpahash, mf->v2, mindex, NULL);
BLI_edgehash_reinsert(vertpahash, mf->v3, mindex, NULL);
if (mf->v4) {
BLI_edgehash_reinsert(vertpahash, mf->v4, mindex, NULL);
}
}
/* make new vertice indexes & count total vertices after duplication */
ehi = BLI_edgehashIterator_new(vertpahash);
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
BLI_edgehashIterator_setValue(ehi, POINTER_FROM_INT(totdup));
totdup++;
}
BLI_edgehashIterator_free(ehi);
/* the final duplicated vertices */
explode = BKE_mesh_new_nomain_from_template(mesh, totdup, 0, totface - delface, 0, 0);
mtface = CustomData_get_layer_named(&explode->fdata, CD_MTFACE, emd->uvname);
/* getting back to object space */
invert_m4_m4(imat, ctx->object->obmat);
psmd->psys->lattice_deform_data = psys_create_lattice_deform_data(&sim);
/* duplicate & displace vertices */
ehi = BLI_edgehashIterator_new(vertpahash);
for (; !BLI_edgehashIterator_isDone(ehi); BLI_edgehashIterator_step(ehi)) {
MVert source;
MVert *dest;
/* get particle + vertex from hash */
BLI_edgehashIterator_getKey(ehi, &ed_v1, &ed_v2);
ed_v2 -= totvert;
v = POINTER_AS_INT(BLI_edgehashIterator_getValue(ehi));
source = mesh->mvert[ed_v1];
dest = &explode->mvert[v];
CustomData_copy_data(&mesh->vdata, &explode->vdata, ed_v1, v, 1);
*dest = source;
if (ed_v2 != totpart) {
/* get particle */
pa = pars + ed_v2;
psys_get_birth_coords(&sim, pa, &birth, 0, 0);
state.time = cfra;
psys_get_particle_state(&sim, ed_v2, &state, 1);
vertco = explode->mvert[v].co;
mul_m4_v3(ctx->object->obmat, vertco);
sub_v3_v3(vertco, birth.co);
/* apply rotation, size & location */
sub_qt_qtqt(rot, state.rot, birth.rot);
mul_qt_v3(rot, vertco);
if (emd->flag & eExplodeFlag_PaSize) {
mul_v3_fl(vertco, pa->size);
}
add_v3_v3(vertco, state.co);
mul_m4_v3(imat, vertco);
}
else {
pa = NULL;
}
}
BLI_edgehashIterator_free(ehi);
/*map new vertices to faces*/
for (i = 0, u = 0; i < totface; i++) {
MFace source;
int orig_v4;
if (facepa[i] != totpart) {
pa = pars + facepa[i];
if (pa->alive == PARS_UNBORN && (emd->flag & eExplodeFlag_Unborn) == 0) {
continue;
}
if (pa->alive == PARS_ALIVE && (emd->flag & eExplodeFlag_Alive) == 0) {
continue;
}
if (pa->alive == PARS_DEAD && (emd->flag & eExplodeFlag_Dead) == 0) {
continue;
}
}
else {
pa = NULL;
}
source = mesh->mface[i];
mf = &explode->mface[u];
orig_v4 = source.v4;
/* Same as above in the first loop over mesh's faces. */
if (pa == NULL || cfra < pa->time) {
mindex = totvert + totpart;
}
else {
mindex = totvert + facepa[i];
}
source.v1 = edgecut_get(vertpahash, source.v1, mindex);
source.v2 = edgecut_get(vertpahash, source.v2, mindex);
source.v3 = edgecut_get(vertpahash, source.v3, mindex);
if (source.v4) {
source.v4 = edgecut_get(vertpahash, source.v4, mindex);
}
CustomData_copy_data(&mesh->fdata, &explode->fdata, i, u, 1);
*mf = source;
/* override uv channel for particle age */
if (mtface) {
float age = (pa != NULL) ? (cfra - pa->time) / pa->lifetime : 0.0f;
/* Clamp to this range to avoid flipping to the other side of the coordinates. */
CLAMP(age, 0.001f, 0.999f);
mtf = mtface + u;
mtf->uv[0][0] = mtf->uv[1][0] = mtf->uv[2][0] = mtf->uv[3][0] = age;
mtf->uv[0][1] = mtf->uv[1][1] = mtf->uv[2][1] = mtf->uv[3][1] = 0.5f;
}
test_index_face(mf, &explode->fdata, u, (orig_v4 ? 4 : 3));
u++;
}
/* cleanup */
BLI_edgehash_free(vertpahash, NULL);
/* finalization */
BKE_mesh_calc_edges_tessface(explode);
BKE_mesh_convert_mfaces_to_mpolys(explode);
explode->runtime.cd_dirty_vert |= CD_MASK_NORMAL;
if (psmd->psys->lattice_deform_data) {
BKE_lattice_deform_data_destroy(psmd->psys->lattice_deform_data);
psmd->psys->lattice_deform_data = NULL;
}
return explode;
}
static ParticleSystemModifierData *findPrecedingParticlesystem(Object *ob, ModifierData *emd)
{
ModifierData *md;
ParticleSystemModifierData *psmd = NULL;
for (md = ob->modifiers.first; emd != md; md = md->next) {
if (md->type == eModifierType_ParticleSystem) {
psmd = (ParticleSystemModifierData *)md;
}
}
return psmd;
}
static Mesh *modifyMesh(ModifierData *md, const ModifierEvalContext *ctx, Mesh *mesh)
{
ExplodeModifierData *emd = (ExplodeModifierData *)md;
ParticleSystemModifierData *psmd = findPrecedingParticlesystem(ctx->object, md);
if (psmd) {
ParticleSystem *psys = psmd->psys;
if (psys == NULL || psys->totpart == 0) {
return mesh;
}
if (psys->part == NULL || psys->particles == NULL) {
return mesh;
}
if (psmd->mesh_final == NULL) {
return mesh;
}
BKE_mesh_tessface_ensure(mesh); /* BMESH - UNTIL MODIFIER IS UPDATED FOR MPoly */
/* 1. find faces to be exploded if needed */
if (emd->facepa == NULL || psmd->flag & eParticleSystemFlag_Pars ||
emd->flag & eExplodeFlag_CalcFaces ||
MEM_allocN_len(emd->facepa) / sizeof(int) != mesh->totface) {
if (psmd->flag & eParticleSystemFlag_Pars) {
psmd->flag &= ~eParticleSystemFlag_Pars;
}
if (emd->flag & eExplodeFlag_CalcFaces) {
emd->flag &= ~eExplodeFlag_CalcFaces;
}
createFacepa(emd, psmd, mesh);
}
/* 2. create new mesh */
Scene *scene = DEG_get_evaluated_scene(ctx->depsgraph);
if (emd->flag & eExplodeFlag_EdgeCut) {
int *facepa = emd->facepa;
Mesh *split_m = cutEdges(emd, mesh);
Mesh *explode = explodeMesh(emd, psmd, ctx, scene, split_m);
MEM_freeN(emd->facepa);
emd->facepa = facepa;
BKE_id_free(NULL, split_m);
return explode;
}
return explodeMesh(emd, psmd, ctx, scene, mesh);
}
return mesh;
}
static void panel_draw(const bContext *UNUSED(C), Panel *panel)
{
uiLayout *row, *col;
uiLayout *layout = panel->layout;
int toggles_flag = UI_ITEM_R_TOGGLE | UI_ITEM_R_FORCE_BLANK_DECORATE;
PointerRNA ob_ptr;
PointerRNA *ptr = modifier_panel_get_property_pointers(panel, &ob_ptr);
PointerRNA obj_data_ptr = RNA_pointer_get(&ob_ptr, "data");
bool has_vertex_group = RNA_string_length(ptr, "vertex_group") != 0;
uiLayoutSetPropSep(layout, true);
uiItemPointerR(layout, ptr, "particle_uv", &obj_data_ptr, "uv_layers", NULL, ICON_NONE);
row = uiLayoutRowWithHeading(layout, true, IFACE_("Show"));
uiItemR(row, ptr, "show_alive", toggles_flag, NULL, ICON_NONE);
uiItemR(row, ptr, "show_dead", toggles_flag, NULL, ICON_NONE);
uiItemR(row, ptr, "show_unborn", toggles_flag, NULL, ICON_NONE);
uiLayoutSetPropSep(layout, true);
col = uiLayoutColumn(layout, false);
uiItemR(col, ptr, "use_edge_cut", 0, NULL, ICON_NONE);
uiItemR(col, ptr, "use_size", 0, NULL, ICON_NONE);
modifier_vgroup_ui(layout, ptr, &ob_ptr, "vertex_group", "invert_vertex_group", NULL);
row = uiLayoutRow(layout, false);
uiLayoutSetActive(row, has_vertex_group);
uiItemR(row, ptr, "protect", 0, NULL, ICON_NONE);
uiItemO(layout, IFACE_("Refresh"), ICON_NONE, "OBJECT_OT_explode_refresh");
modifier_panel_end(layout, ptr);
}
static void panelRegister(ARegionType *region_type)
{
modifier_panel_register(region_type, eModifierType_Explode, panel_draw);
}
static void blendRead(BlendDataReader *UNUSED(reader), ModifierData *md)
{
ExplodeModifierData *psmd = (ExplodeModifierData *)md;
psmd->facepa = NULL;
}
ModifierTypeInfo modifierType_Explode = {
/* name */ "Explode",
/* structName */ "ExplodeModifierData",
/* structSize */ sizeof(ExplodeModifierData),
/* type */ eModifierTypeType_Constructive,
/* flags */ eModifierTypeFlag_AcceptsMesh,
/* copyData */ copyData,
/* deformVerts */ NULL,
/* deformMatrices */ NULL,
/* deformVertsEM */ NULL,
/* deformMatricesEM */ NULL,
/* modifyMesh */ modifyMesh,
/* modifyHair */ NULL,
/* modifyPointCloud */ NULL,
/* modifyVolume */ NULL,
/* initData */ initData,
/* requiredDataMask */ requiredDataMask,
/* freeData */ freeData,
/* isDisabled */ NULL,
/* updateDepsgraph */ NULL,
/* dependsOnTime */ dependsOnTime,
/* dependsOnNormals */ NULL,
/* foreachObjectLink */ NULL,
/* foreachIDLink */ NULL,
/* foreachTexLink */ NULL,
/* freeRuntimeData */ NULL,
/* panelRegister */ panelRegister,
/* blendWrite */ NULL,
/* blendRead */ blendRead,
};
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