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blender-archive/source/blender/blenkernel/intern/DerivedMesh.c

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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.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/blenkernel/intern/DerivedMesh.c
* \ingroup bke
*/
#include <string.h>
#include "limits.h"
#include "MEM_guardedalloc.h"
#include "DNA_cloth_types.h"
#include "DNA_key_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_armature_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h" // N_T
#include "BLI_blenlib.h"
#include "BLI_editVert.h"
#include "BLI_math.h"
#include "BLI_memarena.h"
#include "BLI_array.h"
#include "BLI_pbvh.h"
#include "BLI_utildefines.h"
#include "BLI_linklist.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_displist.h"
#include "BKE_key.h"
#include "BKE_modifier.h"
#include "BKE_mesh.h"
#include "BKE_object.h"
#include "BKE_paint.h"
#include "BKE_texture.h"
#include "BKE_multires.h"
#include "BKE_armature.h"
#include "BKE_particle.h"
#include "BKE_tessmesh.h"
#include "BKE_bvhutils.h"
#include "BKE_deform.h"
#ifdef WITH_GAMEENGINE
#include "BKE_navmesh_conversion.h"
static DerivedMesh *navmesh_dm_createNavMeshForVisualization(DerivedMesh *dm);
#endif
#include "BLO_sys_types.h" // for intptr_t support
#include "GL/glew.h"
#include "GPU_buffers.h"
#include "GPU_draw.h"
#include "GPU_extensions.h"
#include "GPU_material.h"
extern GLubyte stipple_quarttone[128]; /* glutil.c, bad level data */
static void add_shapekey_layers(DerivedMesh *dm, Mesh *me, Object *ob);
static void shapekey_layers_to_keyblocks(DerivedMesh *dm, Mesh *me, int actshape_uid);
///////////////////////////////////
///////////////////////////////////
static MVert *dm_getVertArray(DerivedMesh *dm)
{
MVert *mvert = CustomData_get_layer(&dm->vertData, CD_MVERT);
if (!mvert) {
mvert = CustomData_add_layer(&dm->vertData, CD_MVERT, CD_CALLOC, NULL,
dm->getNumVerts(dm));
CustomData_set_layer_flag(&dm->vertData, CD_MVERT, CD_FLAG_TEMPORARY);
dm->copyVertArray(dm, mvert);
}
return mvert;
}
static MEdge *dm_getEdgeArray(DerivedMesh *dm)
{
MEdge *medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
if (!medge) {
medge = CustomData_add_layer(&dm->edgeData, CD_MEDGE, CD_CALLOC, NULL,
dm->getNumEdges(dm));
CustomData_set_layer_flag(&dm->edgeData, CD_MEDGE, CD_FLAG_TEMPORARY);
dm->copyEdgeArray(dm, medge);
}
return medge;
}
static MFace *dm_getTessFaceArray(DerivedMesh *dm)
{
MFace *mface = CustomData_get_layer(&dm->faceData, CD_MFACE);
if (!mface) {
mface = CustomData_add_layer(&dm->faceData, CD_MFACE, CD_CALLOC, NULL,
dm->getNumTessFaces(dm));
CustomData_set_layer_flag(&dm->faceData, CD_MFACE, CD_FLAG_TEMPORARY);
dm->copyTessFaceArray(dm, mface);
}
return mface;
}
static MLoop *dm_getLoopArray(DerivedMesh *dm)
{
MLoop *mloop = CustomData_get_layer(&dm->loopData, CD_MLOOP);
if (!mloop) {
mloop = CustomData_add_layer(&dm->loopData, CD_MLOOP, CD_CALLOC, NULL,
dm->getNumLoops(dm));
CustomData_set_layer_flag(&dm->loopData, CD_MLOOP, CD_FLAG_TEMPORARY);
dm->copyLoopArray(dm, mloop);
}
return mloop;
}
static MPoly *dm_getPolyArray(DerivedMesh *dm)
{
MPoly *mpoly = CustomData_get_layer(&dm->polyData, CD_MPOLY);
if (!mpoly) {
mpoly = CustomData_add_layer(&dm->polyData, CD_MPOLY, CD_CALLOC, NULL,
dm->getNumPolys(dm));
CustomData_set_layer_flag(&dm->polyData, CD_MPOLY, CD_FLAG_TEMPORARY);
dm->copyPolyArray(dm, mpoly);
}
return mpoly;
}
static MVert *dm_dupVertArray(DerivedMesh *dm)
{
MVert *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumVerts(dm),
"dm_dupVertArray tmp");
if(tmp) dm->copyVertArray(dm, tmp);
return tmp;
}
static MEdge *dm_dupEdgeArray(DerivedMesh *dm)
{
MEdge *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumEdges(dm),
"dm_dupEdgeArray tmp");
if(tmp) dm->copyEdgeArray(dm, tmp);
return tmp;
}
static MFace *dm_dupFaceArray(DerivedMesh *dm)
{
MFace *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumTessFaces(dm),
"dm_dupFaceArray tmp");
if(tmp) dm->copyTessFaceArray(dm, tmp);
return tmp;
}
static MLoop *dm_dupLoopArray(DerivedMesh *dm)
{
MLoop *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumLoops(dm),
"dm_dupLoopArray tmp");
if(tmp) dm->copyLoopArray(dm, tmp);
return tmp;
}
static MPoly *dm_dupPolyArray(DerivedMesh *dm)
{
MPoly *tmp = MEM_callocN(sizeof(*tmp) * dm->getNumPolys(dm),
"dm_dupPolyArray tmp");
if(tmp) dm->copyPolyArray(dm, tmp);
return tmp;
}
static CustomData *dm_getVertCData(DerivedMesh *dm)
{
return &dm->vertData;
}
static CustomData *dm_getEdgeCData(DerivedMesh *dm)
{
return &dm->edgeData;
}
static CustomData *dm_getTessFaceCData(DerivedMesh *dm)
{
return &dm->faceData;
}
static CustomData *dm_getLoopCData(DerivedMesh *dm)
{
return &dm->loopData;
}
static CustomData *dm_getPolyCData(DerivedMesh *dm)
{
return &dm->polyData;
}
void DM_init_funcs(DerivedMesh *dm)
{
/* default function implementations */
dm->getVertArray = dm_getVertArray;
dm->getEdgeArray = dm_getEdgeArray;
dm->getTessFaceArray = dm_getTessFaceArray;
dm->getLoopArray = dm_getLoopArray;
dm->getPolyArray = dm_getPolyArray;
dm->dupVertArray = dm_dupVertArray;
dm->dupEdgeArray = dm_dupEdgeArray;
dm->dupTessFaceArray = dm_dupFaceArray;
dm->dupLoopArray = dm_dupLoopArray;
dm->dupPolyArray = dm_dupPolyArray;
dm->getVertDataLayout = dm_getVertCData;
dm->getEdgeDataLayout = dm_getEdgeCData;
dm->getTessFaceDataLayout = dm_getTessFaceCData;
dm->getLoopDataLayout = dm_getLoopCData;
dm->getPolyDataLayout = dm_getPolyCData;
dm->getVertData = DM_get_vert_data;
dm->getEdgeData = DM_get_edge_data;
dm->getTessFaceData = DM_get_tessface_data;
dm->getVertDataArray = DM_get_vert_data_layer;
dm->getEdgeDataArray = DM_get_edge_data_layer;
dm->getTessFaceDataArray = DM_get_tessface_data_layer;
bvhcache_init(&dm->bvhCache);
}
void DM_init(DerivedMesh *dm, DerivedMeshType type, int numVerts, int numEdges,
int numTessFaces, int numLoops, int numPolys)
{
dm->type = type;
dm->numVertData = numVerts;
dm->numEdgeData = numEdges;
dm->numTessFaceData = numTessFaces;
dm->numLoopData = numLoops;
dm->numPolyData = numPolys;
DM_init_funcs(dm);
dm->needsFree = 1;
dm->auto_bump_scale = -1.0f;
}
void DM_from_template(DerivedMesh *dm, DerivedMesh *source, DerivedMeshType type,
int numVerts, int numEdges, int numTessFaces,
int numLoops, int numPolys)
{
CustomData_copy(&source->vertData, &dm->vertData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numVerts);
CustomData_copy(&source->edgeData, &dm->edgeData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numEdges);
CustomData_copy(&source->faceData, &dm->faceData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numTessFaces);
CustomData_copy(&source->loopData, &dm->loopData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numLoops);
CustomData_copy(&source->polyData, &dm->polyData, CD_MASK_DERIVEDMESH,
CD_CALLOC, numPolys);
dm->type = type;
dm->numVertData = numVerts;
dm->numEdgeData = numEdges;
dm->numTessFaceData = numTessFaces;
dm->numLoopData = numLoops;
dm->numPolyData = numPolys;
DM_init_funcs(dm);
dm->needsFree = 1;
}
int DM_release(DerivedMesh *dm)
{
if (dm->needsFree) {
bvhcache_free(&dm->bvhCache);
GPU_drawobject_free( dm );
CustomData_free(&dm->vertData, dm->numVertData);
CustomData_free(&dm->edgeData, dm->numEdgeData);
CustomData_free(&dm->faceData, dm->numTessFaceData);
CustomData_free(&dm->loopData, dm->numLoopData);
CustomData_free(&dm->polyData, dm->numPolyData);
return 1;
}
else {
CustomData_free_temporary(&dm->vertData, dm->numVertData);
CustomData_free_temporary(&dm->edgeData, dm->numEdgeData);
CustomData_free_temporary(&dm->faceData, dm->numTessFaceData);
CustomData_free_temporary(&dm->loopData, dm->numLoopData);
CustomData_free_temporary(&dm->polyData, dm->numPolyData);
return 0;
}
}
void DM_DupPolys(DerivedMesh *source, DerivedMesh *target)
{
CustomData_free(&target->loopData, source->numLoopData);
CustomData_free(&target->polyData, source->numPolyData);
CustomData_copy(&source->loopData, &target->loopData, CD_MASK_DERIVEDMESH, CD_DUPLICATE, source->numLoopData);
CustomData_copy(&source->polyData, &target->polyData, CD_MASK_DERIVEDMESH, CD_DUPLICATE, source->numPolyData);
target->numLoopData = source->numLoopData;
target->numPolyData = source->numPolyData;
if (!CustomData_has_layer(&target->polyData, CD_MPOLY)) {
MPoly *mpoly;
MLoop *mloop;
mloop = source->dupLoopArray(source);
mpoly = source->dupPolyArray(source);
CustomData_add_layer(&target->loopData, CD_MLOOP, CD_ASSIGN, mloop, source->numLoopData);
CustomData_add_layer(&target->polyData, CD_MPOLY, CD_ASSIGN, mpoly, source->numPolyData);
}
}
/* note: until all modifiers can take MPoly's as input,
* use this at the start of modifiers */
void DM_ensure_tessface(DerivedMesh *dm)
{
const int numTessFaces = dm->getNumTessFaces(dm);
const int numPolys = dm->getNumPolys(dm);
if ( (numTessFaces == 0) && (numPolys != 0)) {
dm->recalcTesselation(dm);
if (dm->getNumTessFaces(dm)) {
printf("warning %s: could not create tessfaces from %d polygons, dm->type=%d\n",
__func__, numPolys, dm->type);
}
else {
printf("info %s: polys -> ngons calculated\n", __func__);
}
}
}
void DM_to_mesh(DerivedMesh *dm, Mesh *me, Object *ob)
{
/* dm might depend on me, so we need to do everything with a local copy */
Mesh tmp = *me;
int totvert, totedge /*, totface */ /* UNUSED */, totloop, totpoly;
int did_shapekeys=0;
memset(&tmp.vdata, 0, sizeof(tmp.vdata));
memset(&tmp.edata, 0, sizeof(tmp.edata));
memset(&tmp.fdata, 0, sizeof(tmp.fdata));
memset(&tmp.ldata, 0, sizeof(tmp.ldata));
memset(&tmp.pdata, 0, sizeof(tmp.pdata));
totvert = tmp.totvert = dm->getNumVerts(dm);
totedge = tmp.totedge = dm->getNumEdges(dm);
totloop = tmp.totloop = dm->getNumLoops(dm);
totpoly = tmp.totpoly = dm->getNumPolys(dm);
CustomData_copy(&dm->vertData, &tmp.vdata, CD_MASK_MESH, CD_DUPLICATE, totvert);
CustomData_copy(&dm->edgeData, &tmp.edata, CD_MASK_MESH, CD_DUPLICATE, totedge);
CustomData_copy(&dm->loopData, &tmp.ldata, CD_MASK_MESH, CD_DUPLICATE, totloop);
CustomData_copy(&dm->polyData, &tmp.pdata, CD_MASK_MESH, CD_DUPLICATE, totpoly);
if (CustomData_has_layer(&dm->vertData, CD_SHAPEKEY)) {
KeyBlock *kb;
int i=0;
if (ob) {
for (kb=me->key->block.first; kb; kb=kb->next, i++) {
if (i == ob->shapenr-1) {
i = kb->uid;
break;
}
}
if (!kb) {
printf("%s: error - could not find active shapekey %d!\n",
__func__, ob->shapenr-1);
i = INT_MAX;
}
} else {
/*if no object, set to INT_MAX so we don't mess up any shapekey layers*/
i = INT_MAX;
}
shapekey_layers_to_keyblocks(dm, me, i);
did_shapekeys = 1;
}
/* not all DerivedMeshes store their verts/edges/faces in CustomData, so
we set them here in case they are missing */
if(!CustomData_has_layer(&tmp.vdata, CD_MVERT))
CustomData_add_layer(&tmp.vdata, CD_MVERT, CD_ASSIGN, dm->dupVertArray(dm), totvert);
if(!CustomData_has_layer(&tmp.edata, CD_MEDGE))
CustomData_add_layer(&tmp.edata, CD_MEDGE, CD_ASSIGN, dm->dupEdgeArray(dm), totedge);
if(!CustomData_has_layer(&tmp.pdata, CD_MPOLY)) {
tmp.mloop = dm->dupLoopArray(dm);
tmp.mpoly = dm->dupPolyArray(dm);
CustomData_add_layer(&tmp.ldata, CD_MLOOP, CD_ASSIGN, tmp.mloop, tmp.totloop);
CustomData_add_layer(&tmp.pdata, CD_MPOLY, CD_ASSIGN, tmp.mpoly, tmp.totpoly);
}
/* object had got displacement layer, should copy this layer to save sculpted data */
/* NOTE: maybe some other layers should be copied? nazgul */
if(CustomData_has_layer(&me->ldata, CD_MDISPS)) {
if (totloop == me->totloop) {
MDisps *mdisps = CustomData_get_layer(&me->ldata, CD_MDISPS);
CustomData_add_layer(&tmp.ldata, CD_MDISPS, CD_DUPLICATE, mdisps, totloop);
}
}
/* yes, must be before _and_ after tesselate */
mesh_update_customdata_pointers(&tmp, TRUE);
tmp.totface = mesh_recalcTesselation(&tmp.fdata, &tmp.ldata, &tmp.pdata, tmp.mvert, tmp.totface, tmp.totloop, tmp.totpoly);
mesh_update_customdata_pointers(&tmp, TRUE);
CustomData_free(&me->vdata, me->totvert);
CustomData_free(&me->edata, me->totedge);
CustomData_free(&me->fdata, me->totface);
CustomData_free(&me->ldata, me->totloop);
CustomData_free(&me->pdata, me->totpoly);
/* ok, this should now use new CD shapekey data,
which shouuld be fed through the modifier
stack*/
if(tmp.totvert != me->totvert && !did_shapekeys && me->key) {
printf("YEEK! this should be recoded! Shape key loss!!!\n");
if(tmp.key) tmp.key->id.us--;
tmp.key = NULL;
}
*me = tmp;
}
void DM_to_meshkey(DerivedMesh *dm, Mesh *me, KeyBlock *kb)
{
int a, totvert = dm->getNumVerts(dm);
float *fp;
MVert *mvert;
if(totvert==0 || me->totvert==0 || me->totvert!=totvert) return;
if(kb->data) MEM_freeN(kb->data);
kb->data= MEM_callocN(me->key->elemsize*me->totvert, "kb->data");
kb->totelem= totvert;
fp= kb->data;
mvert=dm->getVertDataArray(dm, CD_MVERT);
for(a=0; a<kb->totelem; a++, fp+=3, mvert++) {
copy_v3_v3(fp, mvert->co);
}
}
void DM_set_only_copy(DerivedMesh *dm, CustomDataMask mask)
{
CustomData_set_only_copy(&dm->vertData, mask);
CustomData_set_only_copy(&dm->edgeData, mask);
CustomData_set_only_copy(&dm->faceData, mask);
}
void DM_add_vert_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->vertData, type, alloctype, layer, dm->numVertData);
}
void DM_add_edge_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->edgeData, type, alloctype, layer, dm->numEdgeData);
}
void DM_add_tessface_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->faceData, type, alloctype, layer, dm->numTessFaceData);
}
void DM_add_loop_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->loopData, type, alloctype, layer, dm->numLoopData);
}
void DM_add_poly_layer(DerivedMesh *dm, int type, int alloctype, void *layer)
{
CustomData_add_layer(&dm->polyData, type, alloctype, layer, dm->numPolyData);
}
void *DM_get_vert_data(DerivedMesh *dm, int index, int type)
{
return CustomData_get(&dm->vertData, index, type);
}
void *DM_get_edge_data(DerivedMesh *dm, int index, int type)
{
return CustomData_get(&dm->edgeData, index, type);
}
void *DM_get_tessface_data(DerivedMesh *dm, int index, int type)
{
return CustomData_get(&dm->faceData, index, type);
}
void *DM_get_vert_data_layer(DerivedMesh *dm, int type)
{
if(type == CD_MVERT)
return dm->getVertArray(dm);
return CustomData_get_layer(&dm->vertData, type);
}
void *DM_get_edge_data_layer(DerivedMesh *dm, int type)
{
if(type == CD_MEDGE)
return dm->getEdgeArray(dm);
return CustomData_get_layer(&dm->edgeData, type);
}
void *DM_get_tessface_data_layer(DerivedMesh *dm, int type)
{
if (type == CD_MFACE)
return dm->getTessFaceArray(dm);
return CustomData_get_layer(&dm->faceData, type);
}
void *DM_get_poly_data_layer(DerivedMesh *dm, int type)
{
return CustomData_get_layer(&dm->polyData, type);
}
void DM_set_vert_data(DerivedMesh *dm, int index, int type, void *data)
{
CustomData_set(&dm->vertData, index, type, data);
}
void DM_set_edge_data(DerivedMesh *dm, int index, int type, void *data)
{
CustomData_set(&dm->edgeData, index, type, data);
}
void DM_set_tessface_data(DerivedMesh *dm, int index, int type, void *data)
{
CustomData_set(&dm->faceData, index, type, data);
}
void DM_copy_vert_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->vertData, &dest->vertData,
source_index, dest_index, count);
}
void DM_copy_edge_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->edgeData, &dest->edgeData,
source_index, dest_index, count);
}
void DM_copy_tessface_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->faceData, &dest->faceData,
source_index, dest_index, count);
}
void DM_copy_loop_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->loopData, &dest->loopData,
source_index, dest_index, count);
}
void DM_copy_poly_data(DerivedMesh *source, DerivedMesh *dest,
int source_index, int dest_index, int count)
{
CustomData_copy_data(&source->polyData, &dest->polyData,
source_index, dest_index, count);
}
void DM_free_vert_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->vertData, index, count);
}
void DM_free_edge_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->edgeData, index, count);
}
void DM_free_tessface_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->faceData, index, count);
}
void DM_free_loop_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->loopData, index, count);
}
void DM_free_poly_data(struct DerivedMesh *dm, int index, int count)
{
CustomData_free_elem(&dm->polyData, index, count);
}
void DM_interp_vert_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices, float *weights,
int count, int dest_index)
{
CustomData_interp(&source->vertData, &dest->vertData, src_indices,
weights, NULL, count, dest_index);
}
void DM_interp_edge_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, EdgeVertWeight *vert_weights,
int count, int dest_index)
{
CustomData_interp(&source->edgeData, &dest->edgeData, src_indices,
weights, (float*)vert_weights, count, dest_index);
}
void DM_interp_tessface_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, FaceVertWeight *vert_weights,
int count, int dest_index)
{
CustomData_interp(&source->faceData, &dest->faceData, src_indices,
weights, (float*)vert_weights, count, dest_index);
}
void DM_swap_tessface_data(DerivedMesh *dm, int index, const int *corner_indices)
{
CustomData_swap(&dm->faceData, index, corner_indices);
}
void DM_interp_loop_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, int count, int dest_index)
{
CustomData_interp(&source->loopData, &dest->loopData, src_indices,
weights, NULL, count, dest_index);
}
void DM_interp_poly_data(DerivedMesh *source, DerivedMesh *dest,
int *src_indices,
float *weights, int count, int dest_index)
{
CustomData_interp(&source->polyData, &dest->polyData, src_indices,
weights, NULL, count, dest_index);
}
///
DerivedMesh *mesh_create_derived(Mesh *me, Object *ob, float (*vertCos)[3])
{
DerivedMesh *dm = CDDM_from_mesh(me, ob);
if(!dm)
return NULL;
if (vertCos)
CDDM_apply_vert_coords(dm, vertCos);
CDDM_calc_normals(dm);
return dm;
}
/***/
DerivedMesh *mesh_create_derived_for_modifier(Scene *scene, Object *ob,
ModifierData *md, int build_shapekey_layers)
{
Mesh *me = ob->data;
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
DerivedMesh *dm;
md->scene= scene;
if (!(md->mode&eModifierMode_Realtime)) return NULL;
if (mti->isDisabled && mti->isDisabled(md, 0)) return NULL;
if (build_shapekey_layers && me->key && ob->shapenr <= BLI_countlist(&me->key->block)) {
key_to_mesh(BLI_findlink(&me->key->block, ob->shapenr-1), me);
}
if (mti->type==eModifierTypeType_OnlyDeform) {
int numVerts;
float (*deformedVerts)[3] = mesh_getVertexCos(me, &numVerts);
mti->deformVerts(md, ob, NULL, deformedVerts, numVerts, 0, 0);
dm = mesh_create_derived(me, ob, deformedVerts);
if (build_shapekey_layers)
add_shapekey_layers(dm, me, ob);
MEM_freeN(deformedVerts);
} else {
DerivedMesh *tdm = mesh_create_derived(me, ob, NULL);
if (build_shapekey_layers)
add_shapekey_layers(tdm, me, ob);
dm = mti->applyModifier(md, ob, tdm, 0, 0);
if(tdm != dm) tdm->release(tdm);
}
return dm;
}
static float *get_editbmesh_orco_verts(BMEditMesh *em)
{
BMIter iter;
BMVert *eve;
float *orco;
int a, totvert;
/* these may not really be the orco's, but it's only for preview.
* could be solver better once, but isn't simple */
totvert= em->bm->totvert;
orco = MEM_mallocN(sizeof(float)*3*totvert, "EditMesh Orco");
eve = BMIter_New(&iter, em->bm, BM_VERTS_OF_MESH, NULL);
for (a=0; eve; eve=BMIter_Step(&iter), a+=3) {
copy_v3_v3(orco+a, eve->co);
}
return orco;
}
/* orco custom data layer */
static void *get_orco_coords_dm(Object *ob, BMEditMesh *em, int layer, int *free)
{
*free= 0;
if(layer == CD_ORCO) {
/* get original coordinates */
*free= 1;
if(em)
return (float(*)[3])get_editbmesh_orco_verts(em);
else
return (float(*)[3])get_mesh_orco_verts(ob);
}
else if(layer == CD_CLOTH_ORCO) {
/* apply shape key for cloth, this should really be solved
by a more flexible customdata system, but not simple */
if(!em) {
ClothModifierData *clmd = (ClothModifierData *)modifiers_findByType(ob, eModifierType_Cloth);
KeyBlock *kb= key_get_keyblock(ob_get_key(ob), clmd->sim_parms->shapekey_rest);
if(kb->data)
return kb->data;
}
return NULL;
}
return NULL;
}
static DerivedMesh *create_orco_dm(Object *ob, Mesh *me, BMEditMesh *em, int layer)
{
DerivedMesh *dm;
float (*orco)[3];
int free;
if(em) dm= CDDM_from_BMEditMesh(em, me, 0);
else dm= CDDM_from_mesh(me, ob);
orco= get_orco_coords_dm(ob, em, layer, &free);
if(orco) {
CDDM_apply_vert_coords(dm, orco);
if(free) MEM_freeN(orco);
}
CDDM_calc_normals(dm);
return dm;
}
static void add_orco_dm(Object *ob, BMEditMesh *em, DerivedMesh *dm,
DerivedMesh *orcodm, int layer)
{
float (*orco)[3], (*layerorco)[3];
int totvert, free;
totvert= dm->getNumVerts(dm);
if(orcodm) {
orco= MEM_callocN(sizeof(float)*3*totvert, "dm orco");
free= 1;
if(orcodm->getNumVerts(orcodm) == totvert)
orcodm->getVertCos(orcodm, orco);
else
dm->getVertCos(dm, orco);
}
else
orco= get_orco_coords_dm(ob, em, layer, &free);
if(orco) {
if(layer == CD_ORCO)
transform_mesh_orco_verts(ob->data, orco, totvert, 0);
if(!(layerorco = DM_get_vert_data_layer(dm, layer))) {
DM_add_vert_layer(dm, layer, CD_CALLOC, NULL);
layerorco = DM_get_vert_data_layer(dm, layer);
}
memcpy(layerorco, orco, sizeof(float)*3*totvert);
if(free) MEM_freeN(orco);
}
}
/* weight paint colors */
/* Something of a hack, at the moment deal with weightpaint
* by tucking into colors during modifier eval, only in
* wpaint mode. Works ok but need to make sure recalc
* happens on enter/exit wpaint.
*/
void weight_to_rgb(float r_rgb[3], const float weight)
{
const float blend= ((weight/2.0f)+0.5f);
if (weight<=0.25f){ // blue->cyan
r_rgb[0]= 0.0f;
r_rgb[1]= blend*weight*4.0f;
r_rgb[2]= blend;
}
else if (weight<=0.50f){ // cyan->green
r_rgb[0]= 0.0f;
r_rgb[1]= blend;
r_rgb[2]= blend*(1.0f-((weight-0.25f)*4.0f));
}
else if (weight <= 0.75f){ // green->yellow
r_rgb[0]= blend * ((weight-0.50f)*4.0f);
r_rgb[1]= blend;
r_rgb[2]= 0.0f;
}
else if (weight <= 1.0f){ // yellow->red
r_rgb[0]= blend;
r_rgb[1]= blend * (1.0f-((weight-0.75f)*4.0f));
r_rgb[2]= 0.0f;
}
else {
/* exceptional value, unclamped or nan,
* avoid uninitialized memory use */
r_rgb[0]= 1.0f;
r_rgb[1]= 0.0f;
r_rgb[2]= 1.0f;
}
}
/* draw_flag's for calc_weightpaint_vert_color */
enum {
CALC_WP_MULTIPAINT= (1<<0),
CALC_WP_AUTO_NORMALIZE= (1<<1)
};
static void weightpaint_color(unsigned char r_col[4], ColorBand *coba, const float input)
{
float colf[4];
if(coba) do_colorband(coba, input, colf);
else weight_to_rgb(colf, input);
r_col[3] = (unsigned char)(colf[0] * 255.0f);
r_col[2] = (unsigned char)(colf[1] * 255.0f);
r_col[1] = (unsigned char)(colf[2] * 255.0f);
r_col[0] = 255;
}
static void calc_weightpaint_vert_color(
unsigned char r_col[4],
MDeformVert *dv, ColorBand *coba,
const int defbase_tot, const int defbase_act,
const char *dg_flags,
const int selected, const int draw_flag)
{
float input = 0.0f;
int make_black= FALSE;
if ((selected > 1) && (draw_flag & CALC_WP_MULTIPAINT)) {
int was_a_nonzero= FALSE;
unsigned int i;
MDeformWeight *dw= dv->dw;
for (i = dv->totweight; i != 0; i--, dw++) {
/* in multipaint, get the average if auto normalize is inactive
* get the sum if it is active */
if (dw->def_nr < defbase_tot) {
if (dg_flags[dw->def_nr]) {
if (dw->weight) {
input += dw->weight;
was_a_nonzero= TRUE;
}
}
}
}
/* make it black if the selected groups have no weight on a vertex */
if (was_a_nonzero == FALSE) {
make_black = TRUE;
}
else if ((draw_flag & CALC_WP_AUTO_NORMALIZE) == FALSE) {
input /= selected; /* get the average */
}
}
else {
/* default, non tricky behavior */
input= defvert_find_weight(dv, defbase_act);
}
if (make_black) { /* TODO, theme color */
r_col[3] = 0;
r_col[2] = 0;
r_col[1] = 0;
r_col[0] = 255;
}
else {
CLAMP(input, 0.0f, 1.0f);
weightpaint_color(r_col, coba, input);
}
}
static ColorBand *stored_cb= NULL;
void vDM_ColorBand_store(ColorBand *coba)
{
stored_cb= coba;
}
/* return an array of vertex weight colors, caller must free.
*
* note that we could save some memory and allocate RGB only but then we'd need to
* re-arrange the colors when copying to the face since MCol has odd ordering,
* so leave this as is - campbell */
static unsigned char *calc_weightpaint_vert_array(Object *ob, int const draw_flag, ColorBand *coba)
{
Mesh *me = ob->data;
unsigned char *wtcol_v = MEM_mallocN (sizeof(unsigned char) * me->totvert * 4, "weightmap_v");
if (me->dvert) {
unsigned char *wc = wtcol_v;
MDeformVert *dv= me->dvert;
unsigned int i;
/* varisbles for multipaint */
const int defbase_tot = BLI_countlist(&ob->defbase);
const int defbase_act = ob->actdef-1;
char *dg_flags = MEM_mallocN(defbase_tot * sizeof(char), __func__);
const int selected = get_selected_defgroups(ob, dg_flags, defbase_tot);
/* const int unselected = defbase_tot - selected; */ /* UNUSED */
for (i = me->totvert; i != 0; i--, wc += 4, dv++) {
calc_weightpaint_vert_color(wc, dv, coba, defbase_tot, defbase_act, dg_flags, selected, draw_flag);
}
MEM_freeN(dg_flags);
}
else {
int col_i;
weightpaint_color((unsigned char *)&col_i, coba, 0.0f);
fill_vn_i((int *)wtcol_v, me->totvert, col_i);
}
return wtcol_v;
}
static void add_weight_mcol_dm(Object *ob, DerivedMesh *dm, int const draw_flag)
{
ColorBand *coba= stored_cb; /* warning, not a local var */
unsigned char *wtcol_v = calc_weightpaint_vert_array(ob, draw_flag, coba);
unsigned char *wtcol_f;
unsigned char(*wtcol_l)[4] = NULL;
BLI_array_declare(wtcol_l);
MFace *mf = dm->getTessFaceArray(dm);
MLoop *mloop = dm->getLoopArray(dm), *ml;
MPoly *mp = dm->getPolyArray(dm);
int i, j, totface=dm->getNumTessFaces(dm), totloop;
int *origIndex = dm->getVertDataArray(dm, CD_ORIGINDEX);
wtcol_f = MEM_mallocN(sizeof (unsigned char) * totface*4*4, "weightmap_f");
/*first add colors to the tesselation faces*/
for (i=0; i<totface; i++, mf++) {
/*origindex being NULL means we're operating on original mesh data*/
unsigned int fidx= mf->v4 ? 3:2;
do {
copy_v4_v4_char((char *)&wtcol_f[(4 * i + fidx) * 4],
(char *)&wtcol_v[4 * (*(&mf->v1 + fidx))]);
} while (fidx--);
}
CustomData_add_layer(&dm->faceData, CD_WEIGHT_MCOL, CD_ASSIGN, wtcol_f, totface);
/*now add to loops, so the data can be passed through the modifier stack*/
totloop = 0;
for (i=0; i<dm->numPolyData; i++, mp++) {
ml = mloop + mp->loopstart;
for (j=0; j<mp->totloop; j++, ml++, totloop++) {
BLI_array_growone(wtcol_l);
copy_v4_v4_char((char *)&wtcol_l[totloop],
(char *)&wtcol_v[4 * (origIndex ? origIndex[ml->v] : ml->v)]);
}
}
MEM_freeN(wtcol_v);
CustomData_add_layer(&dm->loopData, CD_WEIGHT_MLOOPCOL, CD_ASSIGN, wtcol_l, totloop);
}
static void shapekey_layers_to_keyblocks(DerivedMesh *dm, Mesh *me, int actshape_uid)
{
KeyBlock *kb;
int i, j, tot;
if (!me->key)
return;
tot = CustomData_number_of_layers(&dm->vertData, CD_SHAPEKEY);
for (i=0; i<tot; i++) {
CustomDataLayer *layer = &dm->vertData.layers[CustomData_get_layer_index_n(&dm->vertData, CD_SHAPEKEY, i)];
float (*cos)[3], (*kbcos)[3];
for (kb=me->key->block.first; kb; kb=kb->next) {
if (kb->uid == layer->uid)
break;
}
if (!kb) {
kb = add_keyblock(me->key, layer->name);
kb->uid = layer->uid;
}
if (kb->data)
MEM_freeN(kb->data);
cos = CustomData_get_layer_n(&dm->vertData, CD_SHAPEKEY, i);
kb->totelem = dm->numVertData;
kb->data = kbcos = MEM_mallocN(sizeof(float)*3*kb->totelem, "kbcos DerivedMesh.c");
if (kb->uid == actshape_uid) {
MVert *mvert = dm->getVertArray(dm);
for (j=0; j<dm->numVertData; j++, kbcos++, mvert++) {
copy_v3_v3(*kbcos, mvert->co);
}
} else {
for (j=0; j<kb->totelem; j++, cos++, kbcos++) {
copy_v3_v3(*kbcos, *cos);
}
}
}
for (kb=me->key->block.first; kb; kb=kb->next) {
if (kb->totelem != dm->numVertData) {
if (kb->data)
MEM_freeN(kb->data);
kb->totelem = dm->numVertData;
kb->data = MEM_callocN(sizeof(float)*3*kb->totelem, "kb->data derivedmesh.c");
fprintf(stderr, "%s: lost a shapekey layer! (bmesh internal error)\n", __func__);
}
}
}
static void add_shapekey_layers(DerivedMesh *dm, Mesh *me, Object *UNUSED(ob))
{
KeyBlock *kb;
Key *key = me->key;
int a, b;
if (!me->key)
return;
if (dm->numVertData != me->totvert) {
printf("error in add_shapekey_layers: dm isn't the same size as me\n");
return;
}
for (a=0, kb=key->block.first; kb; kb=kb->next, a++) {
float (*cos)[3] = CustomData_add_layer_named(&dm->vertData, CD_SHAPEKEY, CD_CALLOC, NULL, dm->numVertData, kb->name);
int ci = CustomData_get_layer_index_n(&dm->vertData, CD_SHAPEKEY, a);
dm->vertData.layers[ci].uid = kb->uid;
if (kb->totelem != dm->numVertData) {
printf("error in add_shapekey_layers: totelem and totvert don't match");
continue;
}
for (b=0; b<kb->totelem; b++, cos++) {
copy_v3_v3((float *)cos, ((float*)kb->data)+b*3);
}
}
}
/* new value for useDeform -1 (hack for the gameengine):
* - apply only the modifier stack of the object, skipping the virtual modifiers,
* - don't apply the key
* - apply deform modifiers and input vertexco
*/
static void mesh_calc_modifiers(Scene *scene, Object *ob, float (*inputVertexCos)[3],
DerivedMesh **deform_r, DerivedMesh **final_r,
int useRenderParams, int useDeform,
int needMapping, CustomDataMask dataMask,
int index, int useCache, int build_shapekey_layers)
{
Mesh *me = ob->data;
ModifierData *firstmd, *md;
LinkNode *datamasks, *curr;
CustomDataMask mask, nextmask, append_mask = 0;
float (*deformedVerts)[3] = NULL;
DerivedMesh *dm=NULL, *orcodm, *clothorcodm, *finaldm;
int numVerts = me->totvert;
int required_mode;
int isPrevDeform= FALSE;
int skipVirtualArmature = (useDeform < 0);
MultiresModifierData *mmd= get_multires_modifier(scene, ob, 0);
int has_multires = mmd != NULL, multires_applied = 0;
int sculpt_mode = ob->mode & OB_MODE_SCULPT && ob->sculpt;
int draw_flag= ((scene->toolsettings->multipaint ? CALC_WP_MULTIPAINT : 0) |
(scene->toolsettings->auto_normalize ? CALC_WP_AUTO_NORMALIZE : 0));
if(mmd && !mmd->sculptlvl)
has_multires = 0;
if(!skipVirtualArmature) {
firstmd = modifiers_getVirtualModifierList(ob);
}
else {
/* game engine exception */
firstmd = ob->modifiers.first;
if(firstmd && firstmd->type == eModifierType_Armature)
firstmd = firstmd->next;
}
md = firstmd;
modifiers_clearErrors(ob);
if(useRenderParams) required_mode = eModifierMode_Render;
else required_mode = eModifierMode_Realtime;
datamasks = modifiers_calcDataMasks(scene, ob, md, dataMask, required_mode);
curr = datamasks;
if(deform_r) *deform_r = NULL;
*final_r = NULL;
if(useDeform) {
if(inputVertexCos)
deformedVerts = inputVertexCos;
/* Apply all leading deforming modifiers */
for(;md; md = md->next, curr = curr->next) {
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
md->scene= scene;
if(!modifier_isEnabled(scene, md, required_mode)) continue;
if(useDeform < 0 && mti->dependsOnTime && mti->dependsOnTime(md)) continue;
if(mti->type == eModifierTypeType_OnlyDeform) {
if(!deformedVerts)
deformedVerts = mesh_getVertexCos(me, &numVerts);
mti->deformVerts(md, ob, NULL, deformedVerts, numVerts, useRenderParams, useDeform);
} else {
break;
}
/* grab modifiers until index i */
if((index >= 0) && (modifiers_indexInObject(ob, md) >= index))
break;
}
/* Result of all leading deforming modifiers is cached for
* places that wish to use the original mesh but with deformed
* coordinates (vpaint, etc.)
*/
if (deform_r) {
*deform_r = CDDM_from_mesh(me, ob);
if (build_shapekey_layers)
add_shapekey_layers(dm, me, ob);
if(deformedVerts) {
CDDM_apply_vert_coords(*deform_r, deformedVerts);
CDDM_calc_normals(*deform_r);
}
}
} else {
/* default behaviour for meshes */
if(inputVertexCos)
deformedVerts = inputVertexCos;
else
deformedVerts = mesh_getVertexCos(me, &numVerts);
}
/* Now apply all remaining modifiers. If useDeform is off then skip
* OnlyDeform ones.
*/
dm = NULL;
orcodm = NULL;
clothorcodm = NULL;
for(;md; md = md->next, curr = curr->next) {
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
md->scene= scene;
if(!modifier_isEnabled(scene, md, required_mode)) continue;
if(mti->type == eModifierTypeType_OnlyDeform && !useDeform) continue;
if((mti->flags & eModifierTypeFlag_RequiresOriginalData) && dm) {
modifier_setError(md, "Modifier requires original data, bad stack position.");
continue;
}
if(sculpt_mode && (!has_multires || multires_applied)) {
int unsupported= 0;
if(scene->toolsettings->sculpt->flags & SCULPT_ONLY_DEFORM)
unsupported|= mti->type != eModifierTypeType_OnlyDeform;
unsupported|= md->type == eModifierType_Multires && ((MultiresModifierData*)md)->sculptlvl==0;
unsupported|= multires_applied;
if(unsupported) {
modifier_setError(md, "Not supported in sculpt mode.");
continue;
}
}
if(needMapping && !modifier_supportsMapping(md)) continue;
if(useDeform < 0 && mti->dependsOnTime && mti->dependsOnTime(md)) continue;
/* add an orco layer if needed by this modifier */
if(mti->requiredDataMask)
mask = mti->requiredDataMask(ob, md);
else
mask = 0;
if(dm && (mask & CD_MASK_ORCO))
add_orco_dm(ob, NULL, dm, orcodm, CD_ORCO);
/* How to apply modifier depends on (a) what we already have as
* a result of previous modifiers (could be a DerivedMesh or just
* deformed vertices) and (b) what type the modifier is.
*/
if(mti->type == eModifierTypeType_OnlyDeform) {
/* No existing verts to deform, need to build them. */
if(!deformedVerts) {
if(dm) {
/* Deforming a derived mesh, read the vertex locations
* out of the mesh and deform them. Once done with this
* run of deformers verts will be written back.
*/
numVerts = dm->getNumVerts(dm);
deformedVerts =
MEM_mallocN(sizeof(*deformedVerts) * numVerts, "dfmv");
dm->getVertCos(dm, deformedVerts);
} else {
deformedVerts = mesh_getVertexCos(me, &numVerts);
}
}
/* if this is not the last modifier in the stack then recalculate the normals
* to avoid giving bogus normals to the next modifier see: [#23673] */
if(isPrevDeform && mti->dependsOnNormals && mti->dependsOnNormals(md)) {
/* XXX, this covers bug #23673, but we may need normal calc for other types */
if(dm && dm->type == DM_TYPE_CDDM) {
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
}
mti->deformVerts(md, ob, dm, deformedVerts, numVerts, useRenderParams, useDeform);
} else {
DerivedMesh *ndm;
/* determine which data layers are needed by following modifiers */
if(curr->next)
nextmask= (CustomDataMask)GET_INT_FROM_POINTER(curr->next->link);
else
nextmask= dataMask;
/* apply vertex coordinates or build a DerivedMesh as necessary */
if(dm) {
if(deformedVerts) {
DerivedMesh *tdm = CDDM_copy(dm, 0);
dm->release(dm);
dm = tdm;
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
} else {
dm = CDDM_from_mesh(me, ob);
if (build_shapekey_layers)
add_shapekey_layers(dm, me, ob);
if(deformedVerts) {
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
/* Constructive modifiers need to have an origindex
* otherwise they wont have anywhere to copy the data from.
*
* Also create ORIGINDEX data if any of the following modifiers
* requests it, this way Mirror, Solidify etc will keep ORIGINDEX
* data by using generic DM_copy_vert_data() functions.
*/
if(needMapping || (nextmask & CD_MASK_ORIGINDEX)) {
/* calc */
DM_add_vert_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
DM_add_edge_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
DM_add_poly_layer(dm, CD_ORIGINDEX, CD_CALLOC, NULL);
range_vn_i(DM_get_vert_data_layer(dm, CD_ORIGINDEX), dm->numVertData, 0);
range_vn_i(DM_get_edge_data_layer(dm, CD_ORIGINDEX), dm->numEdgeData, 0);
range_vn_i(DM_get_poly_data_layer(dm, CD_ORIGINDEX), dm->numPolyData, 0);
}
if((dataMask & CD_MASK_WEIGHT_MCOL) && (ob->mode & OB_MODE_WEIGHT_PAINT))
add_weight_mcol_dm(ob, dm, draw_flag);
}
/* set the DerivedMesh to only copy needed data */
mask= (CustomDataMask)GET_INT_FROM_POINTER(curr->link);
/* needMapping check here fixes bug [#28112], otherwise its
* possible that it wont be copied */
mask |= append_mask;
DM_set_only_copy(dm, mask | (needMapping ? CD_MASK_ORIGINDEX : 0));
/* add cloth rest shape key if need */
if(mask & CD_MASK_CLOTH_ORCO)
add_orco_dm(ob, NULL, dm, clothorcodm, CD_CLOTH_ORCO);
/* add an origspace layer if needed */
if(((CustomDataMask)GET_INT_FROM_POINTER(curr->link)) & CD_MASK_ORIGSPACE)
if(!CustomData_has_layer(&dm->faceData, CD_ORIGSPACE))
DM_add_tessface_layer(dm, CD_ORIGSPACE, CD_DEFAULT, NULL);
ndm = mti->applyModifier(md, ob, dm, useRenderParams, useCache);
if(ndm) {
/* if the modifier returned a new dm, release the old one */
if(dm && dm != ndm) dm->release(dm);
dm = ndm;
if(deformedVerts) {
if(deformedVerts != inputVertexCos)
MEM_freeN(deformedVerts);
deformedVerts = NULL;
}
}
/* create an orco derivedmesh in parallel */
if(nextmask & CD_MASK_ORCO) {
if(!orcodm)
orcodm= create_orco_dm(ob, me, NULL, CD_ORCO);
nextmask &= ~CD_MASK_ORCO;
DM_set_only_copy(orcodm, nextmask | CD_MASK_ORIGINDEX);
ndm = mti->applyModifier(md, ob, orcodm, useRenderParams, 0);
if(ndm) {
/* if the modifier returned a new dm, release the old one */
if(orcodm && orcodm != ndm) orcodm->release(orcodm);
orcodm = ndm;
}
}
/* create cloth orco derivedmesh in parallel */
if(nextmask & CD_MASK_CLOTH_ORCO) {
if(!clothorcodm)
clothorcodm= create_orco_dm(ob, me, NULL, CD_CLOTH_ORCO);
nextmask &= ~CD_MASK_CLOTH_ORCO;
DM_set_only_copy(clothorcodm, nextmask | CD_MASK_ORIGINDEX);
ndm = mti->applyModifier(md, ob, clothorcodm, useRenderParams, 0);
if(ndm) {
/* if the modifier returned a new dm, release the old one */
if(clothorcodm && clothorcodm != ndm) clothorcodm->release(clothorcodm);
clothorcodm = ndm;
}
}
/* in case of dynamic paint, make sure preview mask remains for following modifiers */
if (md->type == eModifierType_DynamicPaint)
append_mask |= CD_MASK_WEIGHT_MCOL;
}
isPrevDeform= (mti->type == eModifierTypeType_OnlyDeform);
/* grab modifiers until index i */
if((index >= 0) && (modifiers_indexInObject(ob, md) >= index))
break;
if(sculpt_mode && md->type == eModifierType_Multires)
multires_applied = 1;
}
for(md=firstmd; md; md=md->next)
modifier_freeTemporaryData(md);
/* Yay, we are done. If we have a DerivedMesh and deformed vertices
* need to apply these back onto the DerivedMesh. If we have no
* DerivedMesh then we need to build one.
*/
if(dm && deformedVerts) {
finaldm = CDDM_copy(dm, 0);
dm->release(dm);
CDDM_apply_vert_coords(finaldm, deformedVerts);
CDDM_calc_normals(finaldm);
if((dataMask & CD_MASK_WEIGHT_MCOL) && (ob->mode & OB_MODE_WEIGHT_PAINT))
add_weight_mcol_dm(ob, finaldm, draw_flag);
} else if(dm) {
finaldm = dm;
} else {
int recalc_normals= 0;
finaldm = CDDM_from_mesh(me, ob);
if(build_shapekey_layers) {
add_shapekey_layers(finaldm, me, ob);
recalc_normals= 1;
}
if(deformedVerts) {
CDDM_apply_vert_coords(finaldm, deformedVerts);
recalc_normals= 1;
}
if(recalc_normals)
CDDM_calc_normals(finaldm);
if((dataMask & CD_MASK_WEIGHT_MCOL) && (ob->mode & OB_MODE_WEIGHT_PAINT))
add_weight_mcol_dm(ob, finaldm, draw_flag);
}
/* add an orco layer if needed */
if(dataMask & CD_MASK_ORCO) {
add_orco_dm(ob, NULL, finaldm, orcodm, CD_ORCO);
if(deform_r && *deform_r)
add_orco_dm(ob, NULL, *deform_r, NULL, CD_ORCO);
}
#ifdef WITH_GAMEENGINE
/* NavMesh - this is a hack but saves having a NavMesh modifier */
if ((ob->gameflag & OB_NAVMESH) && (finaldm->type == DM_TYPE_CDDM)) {
DerivedMesh *tdm;
tdm= navmesh_dm_createNavMeshForVisualization(finaldm);
if (finaldm != tdm) {
finaldm->release(finaldm);
finaldm= tdm;
}
}
#endif /* WITH_GAMEENGINE */
/* --------------------------------------------------------------------- */
/* Re-tesselation is necessary to push render data (uvs, textures, colors)
* from loops and polys onto the tessfaces. This may be currently be
* redundantin cases where the render mode doesn't use these inputs, but
* ideally eventually tesselation would happen on-demand, and this is one
* of the primary places it would be needed. */
finaldm->recalcTesselation(finaldm);
/* if we have no modifiers applied we'lll still want the tessface normals
* to be calculated from the polygon noramals,
* 'CDDM_calc_normals' checks for this case - campbell */
finaldm->calcNormals(finaldm);
/* Need to watch this, it can cause issues, see bug [#29338] */
/* take care with this block, we really need testing frameworks */
/* --------------------------------------------------------------------- */
*final_r = finaldm;
if(orcodm)
orcodm->release(orcodm);
if(clothorcodm)
clothorcodm->release(clothorcodm);
if(deformedVerts && deformedVerts != inputVertexCos)
MEM_freeN(deformedVerts);
BLI_linklist_free(datamasks, NULL);
}
float (*editbmesh_get_vertex_cos(BMEditMesh *em, int *numVerts_r))[3]
{
int i, numVerts = *numVerts_r = em->bm->totvert;
float (*cos)[3];
BMIter iter;
BMVert *eve;
cos = MEM_mallocN(sizeof(float)*3*numVerts, "vertexcos");
eve = BMIter_New(&iter, em->bm, BM_VERTS_OF_MESH, NULL);
for (i=0; eve; eve=BMIter_Step(&iter), i++) {
copy_v3_v3(cos[i], eve->co);
}
return cos;
}
int editbmesh_modifier_is_enabled(Scene *scene, ModifierData *md, DerivedMesh *dm)
{
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
int required_mode = eModifierMode_Realtime | eModifierMode_Editmode;
if(!modifier_isEnabled(scene, md, required_mode)) return 0;
if((mti->flags & eModifierTypeFlag_RequiresOriginalData) && dm) {
modifier_setError(md, "Modifier requires original data, bad stack position.");
return 0;
}
return 1;
}
static void editbmesh_calc_modifiers(Scene *scene, Object *ob, BMEditMesh *em, DerivedMesh **cage_r,
DerivedMesh **final_r,
CustomDataMask dataMask)
{
ModifierData *md;
float (*deformedVerts)[3] = NULL;
CustomDataMask mask;
DerivedMesh *dm, *orcodm = NULL;
int i, numVerts = 0, cageIndex = modifiers_getCageIndex(scene, ob, NULL, 1);
LinkNode *datamasks, *curr;
int required_mode = eModifierMode_Realtime | eModifierMode_Editmode;
modifiers_clearErrors(ob);
if(cage_r && cageIndex == -1) {
*cage_r = getEditDerivedBMesh(em, ob, NULL);
}
dm = NULL;
md = modifiers_getVirtualModifierList(ob);
datamasks = modifiers_calcDataMasks(scene, ob, md, dataMask, required_mode);
curr = datamasks;
for(i = 0; md; i++, md = md->next, curr = curr->next) {
ModifierTypeInfo *mti = modifierType_getInfo(md->type);
md->scene= scene;
if(!editbmesh_modifier_is_enabled(scene, md, dm))
continue;
/* add an orco layer if needed by this modifier */
if(dm && mti->requiredDataMask) {
mask = mti->requiredDataMask(ob, md);
if(mask & CD_MASK_ORCO)
add_orco_dm(ob, em, dm, orcodm, CD_ORCO);
}
/* How to apply modifier depends on (a) what we already have as
* a result of previous modifiers (could be a DerivedMesh or just
* deformed vertices) and (b) what type the modifier is.
*/
if(mti->type == eModifierTypeType_OnlyDeform) {
/* No existing verts to deform, need to build them. */
if(!deformedVerts) {
if(dm) {
/* Deforming a derived mesh, read the vertex locations
* out of the mesh and deform them. Once done with this
* run of deformers verts will be written back.
*/
numVerts = dm->getNumVerts(dm);
deformedVerts =
MEM_mallocN(sizeof(*deformedVerts) * numVerts, "dfmv");
dm->getVertCos(dm, deformedVerts);
} else {
deformedVerts = editbmesh_get_vertex_cos(em, &numVerts);
}
}
if (mti->deformVertsEM)
mti->deformVertsEM(md, ob, em, dm, deformedVerts, numVerts);
else mti->deformVerts(md, ob, dm, deformedVerts, numVerts, 0, 0);
} else {
DerivedMesh *ndm;
/* apply vertex coordinates or build a DerivedMesh as necessary */
if(dm) {
if(deformedVerts) {
DerivedMesh *tdm = CDDM_copy(dm, 0);
if(!(cage_r && dm == *cage_r)) dm->release(dm);
dm = tdm;
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
} else if(cage_r && dm == *cage_r) {
/* dm may be changed by this modifier, so we need to copy it
*/
dm = CDDM_copy(dm, 0);
}
} else {
dm = CDDM_from_BMEditMesh(em, ob->data, 0);
if(deformedVerts) {
CDDM_apply_vert_coords(dm, deformedVerts);
CDDM_calc_normals(dm);
}
}
/* create an orco derivedmesh in parallel */
mask= (CustomDataMask)GET_INT_FROM_POINTER(curr->link);
if(mask & CD_MASK_ORCO) {
if(!orcodm)
orcodm= create_orco_dm(ob, ob->data, em, CD_ORCO);
mask &= ~CD_MASK_ORCO;
DM_set_only_copy(orcodm, mask | CD_MASK_ORIGINDEX);
if (mti->applyModifierEM)
ndm = mti->applyModifierEM(md, ob, em, orcodm);
else
ndm = mti->applyModifier(md, ob, orcodm, 0, 0);
if(ndm) {
/* if the modifier returned a new dm, release the old one */
if(orcodm && orcodm != ndm) orcodm->release(orcodm);
orcodm = ndm;
}
}
/* set the DerivedMesh to only copy needed data */
mask= (CustomDataMask)GET_INT_FROM_POINTER(curr->link); /* CD_MASK_ORCO may have been cleared above */
DM_set_only_copy(dm, mask | CD_MASK_ORIGINDEX);
if(mask & CD_MASK_ORIGSPACE)
if(!CustomData_has_layer(&dm->faceData, CD_ORIGSPACE))
DM_add_tessface_layer(dm, CD_ORIGSPACE, CD_DEFAULT, NULL);
if (mti->applyModifierEM)
ndm = mti->applyModifierEM(md, ob, em, dm);
else
ndm = mti->applyModifier(md, ob, dm, 0, 0);
if (ndm) {
if(dm && dm != ndm)
dm->release(dm);
dm = ndm;
if (deformedVerts) {
MEM_freeN(deformedVerts);
deformedVerts = NULL;
}
}
}
if(cage_r && i == cageIndex) {
if(dm && deformedVerts) {
*cage_r = CDDM_copy(dm, 0);
CDDM_apply_vert_coords(*cage_r, deformedVerts);
} else if(dm) {
*cage_r = dm;
} else {
*cage_r =
getEditDerivedBMesh(em, ob,
deformedVerts ? MEM_dupallocN(deformedVerts) : NULL);
}
}
}
BLI_linklist_free(datamasks, NULL);
/* Yay, we are done. If we have a DerivedMesh and deformed vertices need
* to apply these back onto the DerivedMesh. If we have no DerivedMesh
* then we need to build one.
*/
if(dm && deformedVerts) {
*final_r = CDDM_copy(dm, 0);
if(!(cage_r && dm == *cage_r)) dm->release(dm);
CDDM_apply_vert_coords(*final_r, deformedVerts);
CDDM_calc_normals(*final_r);
} else if (dm) {
*final_r = dm;
(*final_r)->calcNormals(*final_r); /* BMESH_ONLY - BMESH_TODO. check if this is needed */
} else if (!deformedVerts && cage_r && *cage_r) {
*final_r = *cage_r;
(*final_r)->calcNormals(*final_r); /* BMESH_ONLY - BMESH_TODO. check if this is needed */
} else {
*final_r = getEditDerivedBMesh(em, ob, deformedVerts);
deformedVerts = NULL;
(*final_r)->calcNormals(*final_r); /* BMESH_ONLY - BMESH_TODO. check if this is needed */
}
/* add an orco layer if needed */
if(dataMask & CD_MASK_ORCO)
add_orco_dm(ob, em, *final_r, orcodm, CD_ORCO);
if(orcodm)
orcodm->release(orcodm);
if(deformedVerts)
MEM_freeN(deformedVerts);
}
static void clear_mesh_caches(Object *ob)
{
Mesh *me= ob->data;
/* also serves as signal to remake texspace */
if (ob->bb) {
MEM_freeN(ob->bb);
ob->bb = NULL;
}
if (me->bb) {
MEM_freeN(me->bb);
me->bb = NULL;
}
freedisplist(&ob->disp);
if (ob->derivedFinal) {
ob->derivedFinal->needsFree = 1;
ob->derivedFinal->release(ob->derivedFinal);
ob->derivedFinal= NULL;
}
if (ob->derivedDeform) {
ob->derivedDeform->needsFree = 1;
ob->derivedDeform->release(ob->derivedDeform);
ob->derivedDeform= NULL;
}
if(ob->sculpt) {
object_sculpt_modifiers_changed(ob);
}
}
static void mesh_build_data(Scene *scene, Object *ob, CustomDataMask dataMask,
int build_shapekey_layers)
{
Object *obact = scene->basact?scene->basact->object:NULL;
int editing = paint_facesel_test(ob);
/* weight paint and face select need original indices because of selection buffer drawing */
int needMapping = (ob==obact) && (editing || (ob->mode & (OB_MODE_WEIGHT_PAINT|OB_MODE_VERTEX_PAINT|OB_MODE_TEXTURE_PAINT)));
clear_mesh_caches(ob);
mesh_calc_modifiers(scene, ob, NULL, &ob->derivedDeform,
&ob->derivedFinal, 0, 1,
needMapping, dataMask, -1, 1, build_shapekey_layers);
DM_set_object_boundbox (ob, ob->derivedFinal);
ob->derivedFinal->needsFree = 0;
ob->derivedDeform->needsFree = 0;
ob->lastDataMask = dataMask;
}
static void editbmesh_build_data(Scene *scene, Object *obedit, BMEditMesh *em, CustomDataMask dataMask)
{
clear_mesh_caches(obedit);
if (em->derivedFinal) {
if (em->derivedFinal!=em->derivedCage) {
em->derivedFinal->needsFree = 1;
em->derivedFinal->release(em->derivedFinal);
}
em->derivedFinal = NULL;
}
if (em->derivedCage) {
em->derivedCage->needsFree = 1;
em->derivedCage->release(em->derivedCage);
em->derivedCage = NULL;
}
editbmesh_calc_modifiers(scene, obedit, em, &em->derivedCage, &em->derivedFinal, dataMask);
DM_set_object_boundbox (obedit, em->derivedFinal);
em->lastDataMask = dataMask;
em->derivedFinal->needsFree = 0;
em->derivedCage->needsFree = 0;
}
void makeDerivedMesh(Scene *scene, Object *ob, BMEditMesh *em,
CustomDataMask dataMask, int build_shapekey_layers)
{
if (em) {
editbmesh_build_data(scene, ob, em, dataMask);
} else {
mesh_build_data(scene, ob, dataMask, build_shapekey_layers);
}
}
/***/
DerivedMesh *mesh_get_derived_final(Scene *scene, Object *ob, CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if(!ob->derivedFinal || (dataMask & ob->lastDataMask) != dataMask)
mesh_build_data(scene, ob, dataMask, 0);
return ob->derivedFinal;
}
DerivedMesh *mesh_get_derived_deform(Scene *scene, Object *ob, CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if(!ob->derivedDeform || (dataMask & ob->lastDataMask) != dataMask)
mesh_build_data(scene, ob, dataMask, 0);
return ob->derivedDeform;
}
DerivedMesh *mesh_create_derived_render(Scene *scene, Object *ob, CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, NULL, NULL, &final, 1, 1, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_index_render(Scene *scene, Object *ob, CustomDataMask dataMask, int index)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, NULL, NULL, &final, 1, 1, 0, dataMask, index, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_view(Scene *scene, Object *ob, CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, NULL, NULL, &final, 0, 1, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_no_deform(Scene *scene, Object *ob, float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 0, 0, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_no_virtual(Scene *scene, Object *ob, float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 0, -1, 0, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_physics(Scene *scene, Object *ob, float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 0, -1, 1, dataMask, -1, 0, 0);
return final;
}
DerivedMesh *mesh_create_derived_no_deform_render(Scene *scene, Object *ob,
float (*vertCos)[3],
CustomDataMask dataMask)
{
DerivedMesh *final;
mesh_calc_modifiers(scene, ob, vertCos, NULL, &final, 1, 0, 0, dataMask, -1, 0, 0);
return final;
}
/***/
DerivedMesh *editbmesh_get_derived_cage_and_final(Scene *scene, Object *obedit, BMEditMesh *em, DerivedMesh **final_r,
CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if(!em->derivedCage ||
(em->lastDataMask & dataMask) != dataMask)
editbmesh_build_data(scene, obedit, em, dataMask);
*final_r = em->derivedFinal;
return em->derivedCage;
}
DerivedMesh *editbmesh_get_derived_cage(Scene *scene, Object *obedit, BMEditMesh *em, CustomDataMask dataMask)
{
/* if there's no derived mesh or the last data mask used doesn't include
* the data we need, rebuild the derived mesh
*/
if(!em->derivedCage ||
(em->lastDataMask & dataMask) != dataMask)
editbmesh_build_data(scene, obedit, em, dataMask);
return em->derivedCage;
}
DerivedMesh *editbmesh_get_derived_base(Object *obedit, BMEditMesh *em)
{
return getEditDerivedBMesh(em, obedit, NULL);
}
/* ********* For those who don't grasp derived stuff! (ton) :) *************** */
static void make_vertexcosnos__mapFunc(void *userData, int index, float *co, float *no_f, short *no_s)
{
float *vec = userData;
vec+= 6*index;
/* check if we've been here before (normal should not be 0) */
if(vec[3] || vec[4] || vec[5]) return;
copy_v3_v3(vec, co);
vec+= 3;
if(no_f) {
copy_v3_v3(vec, no_f);
}
else {
normal_short_to_float_v3(vec, no_s);
}
}
/* always returns original amount me->totvert of vertices and normals, but fully deformed and subsurfered */
/* this is needed for all code using vertexgroups (no subsurf support) */
/* it stores the normals as floats, but they can still be scaled as shorts (32767 = unit) */
/* in use now by vertex/weight paint and particle generating */
float *mesh_get_mapped_verts_nors(Scene *scene, Object *ob)
{
Mesh *me= ob->data;
DerivedMesh *dm;
float *vertexcosnos;
/* lets prevent crashing... */
if(ob->type!=OB_MESH || me->totvert==0)
return NULL;
dm= mesh_get_derived_final(scene, ob, CD_MASK_BAREMESH|CD_MASK_ORIGINDEX);
vertexcosnos= MEM_callocN(6*sizeof(float)*me->totvert, "vertexcosnos map");
if(dm->foreachMappedVert) {
dm->foreachMappedVert(dm, make_vertexcosnos__mapFunc, vertexcosnos);
}
else {
float *fp= vertexcosnos;
int a;
for(a=0; a< me->totvert; a++, fp+=6) {
dm->getVertCo(dm, a, fp);
dm->getVertNo(dm, a, fp+3);
}
}
dm->release(dm);
return vertexcosnos;
}
/* ******************* GLSL ******************** */
typedef struct
{
float * precomputedFaceNormals;
MTFace * mtface; // texture coordinates
MFace * mface; // indices
MVert * mvert; // vertices & normals
float (*orco)[3];
float (*tangent)[4]; // destination
int numTessFaces;
} SGLSLMeshToTangent;
// interface
#include "mikktspace.h"
static int GetNumFaces(const SMikkTSpaceContext * pContext)
{
SGLSLMeshToTangent * pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
return pMesh->numTessFaces;
}
static int GetNumVertsOfFace(const SMikkTSpaceContext * pContext, const int face_num)
{
SGLSLMeshToTangent * pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
return pMesh->mface[face_num].v4!=0 ? 4 : 3;
}
static void GetPosition(const SMikkTSpaceContext * pContext, float fPos[], const int face_num, const int vert_index)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent * pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
const float *co= pMesh->mvert[(&pMesh->mface[face_num].v1)[vert_index]].co;
copy_v3_v3(fPos, co);
}
static void GetTextureCoordinate(const SMikkTSpaceContext * pContext, float fUV[], const int face_num, const int vert_index)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent * pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
if(pMesh->mtface!=NULL) {
float * uv = pMesh->mtface[face_num].uv[vert_index];
fUV[0]=uv[0]; fUV[1]=uv[1];
}
else {
const float *orco= pMesh->orco[(&pMesh->mface[face_num].v1)[vert_index]];
map_to_sphere( &fUV[0], &fUV[1], orco[0], orco[1], orco[2]);
}
}
static void GetNormal(const SMikkTSpaceContext * pContext, float fNorm[], const int face_num, const int vert_index)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent * pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
const int smoothnormal = (pMesh->mface[face_num].flag & ME_SMOOTH);
if(!smoothnormal) { // flat
if(pMesh->precomputedFaceNormals) {
copy_v3_v3(fNorm, &pMesh->precomputedFaceNormals[3*face_num]);
}
else {
MFace *mf= &pMesh->mface[face_num];
float *p0= pMesh->mvert[mf->v1].co;
float *p1= pMesh->mvert[mf->v2].co;
float *p2= pMesh->mvert[mf->v3].co;
if(mf->v4) {
float *p3 = pMesh->mvert[mf->v4].co;
normal_quad_v3(fNorm, p0, p1, p2, p3);
}
else {
normal_tri_v3(fNorm, p0, p1, p2);
}
}
}
else {
const short *no= pMesh->mvert[(&pMesh->mface[face_num].v1)[vert_index]].no;
normal_short_to_float_v3(fNorm, no);
}
}
static void SetTSpace(const SMikkTSpaceContext * pContext, const float fvTangent[], const float fSign, const int face_num, const int iVert)
{
//assert(vert_index>=0 && vert_index<4);
SGLSLMeshToTangent * pMesh = (SGLSLMeshToTangent *) pContext->m_pUserData;
float * pRes = pMesh->tangent[4*face_num+iVert];
copy_v3_v3(pRes, fvTangent);
pRes[3]=fSign;
}
void DM_add_tangent_layer(DerivedMesh *dm)
{
/* mesh vars */
MTFace *mtface, *tf;
MFace *mface, *mf;
MVert *mvert, *v1, *v2, *v3, *v4;
MemArena *arena= NULL;
VertexTangent **vtangents= NULL;
float (*orco)[3]= NULL, (*tangent)[4];
float *uv1, *uv2, *uv3, *uv4, *vtang;
float fno[3], tang[3], uv[4][2];
int i, j, len, mf_vi[4], totvert, totface, iCalcNewMethod;
float *nors;
if(CustomData_get_layer_index(&dm->faceData, CD_TANGENT) != -1)
return;
nors = dm->getTessFaceDataArray(dm, CD_NORMAL);
/* check we have all the needed layers */
totvert= dm->getNumVerts(dm);
totface= dm->getNumTessFaces(dm);
mvert= dm->getVertArray(dm);
mface= dm->getTessFaceArray(dm);
mtface= dm->getTessFaceDataArray(dm, CD_MTFACE);
if(!mtface) {
orco= dm->getVertDataArray(dm, CD_ORCO);
if(!orco)
return;
}
/* create tangent layer */
DM_add_tessface_layer(dm, CD_TANGENT, CD_CALLOC, NULL);
tangent= DM_get_tessface_data_layer(dm, CD_TANGENT);
/* allocate some space */
arena= BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, "tangent layer arena");
BLI_memarena_use_calloc(arena);
vtangents= MEM_callocN(sizeof(VertexTangent*)*totvert, "VertexTangent");
// new computation method
iCalcNewMethod = 1;
if(iCalcNewMethod != 0) {
SGLSLMeshToTangent mesh2tangent= {0};
SMikkTSpaceContext sContext= {0};
SMikkTSpaceInterface sInterface= {0};
mesh2tangent.precomputedFaceNormals = nors;
mesh2tangent.mtface = mtface;
mesh2tangent.mface = mface;
mesh2tangent.mvert = mvert;
mesh2tangent.orco = orco;
mesh2tangent.tangent = tangent;
mesh2tangent.numTessFaces = totface;
sContext.m_pUserData = &mesh2tangent;
sContext.m_pInterface = &sInterface;
sInterface.m_getNumFaces = GetNumFaces;
sInterface.m_getNumVerticesOfFace = GetNumVertsOfFace;
sInterface.m_getPosition = GetPosition;
sInterface.m_getTexCoord = GetTextureCoordinate;
sInterface.m_getNormal = GetNormal;
sInterface.m_setTSpaceBasic = SetTSpace;
// 0 if failed
iCalcNewMethod = genTangSpaceDefault(&sContext);
}
if(!iCalcNewMethod) {
/* sum tangents at connected vertices */
for(i=0, tf=mtface, mf=mface; i < totface; mf++, tf++, i++) {
v1= &mvert[mf->v1];
v2= &mvert[mf->v2];
v3= &mvert[mf->v3];
if (mf->v4) {
v4= &mvert[mf->v4];
normal_quad_v3( fno,v4->co, v3->co, v2->co, v1->co);
}
else {
v4= NULL;
normal_tri_v3( fno,v3->co, v2->co, v1->co);
}
if(mtface) {
uv1= tf->uv[0];
uv2= tf->uv[1];
uv3= tf->uv[2];
uv4= tf->uv[3];
}
else {
uv1= uv[0]; uv2= uv[1]; uv3= uv[2]; uv4= uv[3];
map_to_sphere( &uv[0][0], &uv[0][1],orco[mf->v1][0], orco[mf->v1][1], orco[mf->v1][2]);
map_to_sphere( &uv[1][0], &uv[1][1],orco[mf->v2][0], orco[mf->v2][1], orco[mf->v2][2]);
map_to_sphere( &uv[2][0], &uv[2][1],orco[mf->v3][0], orco[mf->v3][1], orco[mf->v3][2]);
if(v4)
map_to_sphere( &uv[3][0], &uv[3][1],orco[mf->v4][0], orco[mf->v4][1], orco[mf->v4][2]);
}
tangent_from_uv(uv1, uv2, uv3, v1->co, v2->co, v3->co, fno, tang);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v1], tang, uv1);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v2], tang, uv2);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v3], tang, uv3);
if(mf->v4) {
v4= &mvert[mf->v4];
tangent_from_uv(uv1, uv3, uv4, v1->co, v3->co, v4->co, fno, tang);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v1], tang, uv1);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v3], tang, uv3);
sum_or_add_vertex_tangent(arena, &vtangents[mf->v4], tang, uv4);
}
}
/* write tangent to layer */
for(i=0, tf=mtface, mf=mface; i < totface; mf++, tf++, i++, tangent+=4) {
len= (mf->v4)? 4 : 3;
if(mtface == NULL) {
map_to_sphere( &uv[0][0], &uv[0][1],orco[mf->v1][0], orco[mf->v1][1], orco[mf->v1][2]);
map_to_sphere( &uv[1][0], &uv[1][1],orco[mf->v2][0], orco[mf->v2][1], orco[mf->v2][2]);
map_to_sphere( &uv[2][0], &uv[2][1],orco[mf->v3][0], orco[mf->v3][1], orco[mf->v3][2]);
if(len==4)
map_to_sphere( &uv[3][0], &uv[3][1],orco[mf->v4][0], orco[mf->v4][1], orco[mf->v4][2]);
}
mf_vi[0]= mf->v1;
mf_vi[1]= mf->v2;
mf_vi[2]= mf->v3;
mf_vi[3]= mf->v4;
for(j=0; j<len; j++) {
vtang= find_vertex_tangent(vtangents[mf_vi[j]], mtface ? tf->uv[j] : uv[j]);
normalize_v3_v3(tangent[j], vtang);
((float *) tangent[j])[3]=1.0f;
}
}
}
BLI_memarena_free(arena);
MEM_freeN(vtangents);
}
void DM_calc_auto_bump_scale(DerivedMesh *dm)
{
/* int totvert= dm->getNumVerts(dm); */ /* UNUSED */
int totface= dm->getNumTessFaces(dm);
MVert * mvert = dm->getVertArray(dm);
MFace * mface = dm->getTessFaceArray(dm);
MTFace * mtface = dm->getTessFaceDataArray(dm, CD_MTFACE);
if(mtface)
{
double dsum = 0.0;
int nr_accumulated = 0;
int f;
for ( f=0; f<totface; f++ )
{
{
float * verts[4], * tex_coords[4];
const int nr_verts = mface[f].v4!=0 ? 4 : 3;
int i, is_degenerate;
verts[0]=mvert[mface[f].v1].co; verts[1]=mvert[mface[f].v2].co; verts[2]=mvert[mface[f].v3].co;
tex_coords[0]=mtface[f].uv[0]; tex_coords[1]=mtface[f].uv[1]; tex_coords[2]=mtface[f].uv[2];
if(nr_verts==4)
{
verts[3]=mvert[mface[f].v4].co;
tex_coords[3]=mtface[f].uv[3];
}
// discard degenerate faces
is_degenerate = 0;
if( equals_v3v3(verts[0], verts[1]) || equals_v3v3(verts[0], verts[2]) || equals_v3v3(verts[1], verts[2]) ||
equals_v2v2(tex_coords[0], tex_coords[1]) || equals_v2v2(tex_coords[0], tex_coords[2]) || equals_v2v2(tex_coords[1], tex_coords[2]) )
{
is_degenerate = 1;
}
// verify last vertex as well if this is a quad
if ( is_degenerate==0 && nr_verts==4 )
{
if( equals_v3v3(verts[3], verts[0]) || equals_v3v3(verts[3], verts[1]) || equals_v3v3(verts[3], verts[2]) ||
equals_v2v2(tex_coords[3], tex_coords[0]) || equals_v2v2(tex_coords[3], tex_coords[1]) || equals_v2v2(tex_coords[3], tex_coords[2]) )
{
is_degenerate = 1;
}
// verify the winding is consistent
if ( is_degenerate==0 )
{
float prev_edge[2];
int is_signed = 0;
sub_v2_v2v2(prev_edge, tex_coords[0], tex_coords[3]);
i = 0;
while ( is_degenerate==0 && i<4 )
{
float cur_edge[2], signed_area;
sub_v2_v2v2(cur_edge, tex_coords[(i+1)&0x3], tex_coords[i]);
signed_area = prev_edge[0]*cur_edge[1] - prev_edge[1]*cur_edge[0];
if ( i==0 ) is_signed = signed_area<0.0f ? 1 : 0;
else if((is_signed!=0)!=(signed_area<0.0f)) is_degenerate=1;
if ( is_degenerate==0 )
{
copy_v2_v2(prev_edge, cur_edge);
++i;
}
}
}
}
// proceed if not a degenerate face
if ( is_degenerate==0 )
{
int nr_tris_to_pile=0;
// quads split at shortest diagonal
int offs = 0; // initial triangulation is 0,1,2 and 0, 2, 3
if ( nr_verts==4 )
{
float pos_len_diag0, pos_len_diag1;
float vtmp[3];
sub_v3_v3v3(vtmp, verts[2], verts[0]);
pos_len_diag0 = dot_v3v3(vtmp, vtmp);
sub_v3_v3v3(vtmp, verts[3], verts[1]);
pos_len_diag1 = dot_v3v3(vtmp, vtmp);
if(pos_len_diag1<pos_len_diag0)
offs=1; // alter split
else if(pos_len_diag0==pos_len_diag1) // do UV check instead
{
float tex_len_diag0, tex_len_diag1;
sub_v2_v2v2(vtmp, tex_coords[2], tex_coords[0]);
tex_len_diag0 = dot_v2v2(vtmp, vtmp);
sub_v2_v2v2(vtmp, tex_coords[3], tex_coords[1]);
tex_len_diag1 = dot_v2v2(vtmp, vtmp);
if(tex_len_diag1<tex_len_diag0)
{
offs=1; // alter split
}
}
}
nr_tris_to_pile = nr_verts-2 ;
if ( nr_tris_to_pile==1 || nr_tris_to_pile==2 )
{
const int indices[] = {offs+0, offs+1, offs+2, offs+0, offs+2, (offs+3)&0x3 };
int t;
for ( t=0; t<nr_tris_to_pile; t++ )
{
float f2x_area_uv;
float * p0 = verts[indices[t*3+0]];
float * p1 = verts[indices[t*3+1]];
float * p2 = verts[indices[t*3+2]];
float edge_t0[2], edge_t1[2];
sub_v2_v2v2(edge_t0, tex_coords[indices[t*3+1]], tex_coords[indices[t*3+0]]);
sub_v2_v2v2(edge_t1, tex_coords[indices[t*3+2]], tex_coords[indices[t*3+0]]);
f2x_area_uv = fabsf(edge_t0[0]*edge_t1[1] - edge_t0[1]*edge_t1[0]);
if ( f2x_area_uv>FLT_EPSILON )
{
float norm[3], v0[3], v1[3], f2x_surf_area, fsurf_ratio;
sub_v3_v3v3(v0, p1, p0);
sub_v3_v3v3(v1, p2, p0);
cross_v3_v3v3(norm, v0, v1);
f2x_surf_area = len_v3(norm);
fsurf_ratio = f2x_surf_area/f2x_area_uv; // tri area divided by texture area
++nr_accumulated;
dsum += (double)(fsurf_ratio);
}
}
}
}
}
}
// finalize
{
const float avg_area_ratio = (nr_accumulated>0) ? ((float)(dsum / nr_accumulated)) : 1.0f;
const float use_as_render_bump_scale = sqrtf(avg_area_ratio); // use width of average surface ratio as your bump scale
dm->auto_bump_scale = use_as_render_bump_scale;
}
}
else
{
dm->auto_bump_scale = 1.0f;
}
}
void DM_vertex_attributes_from_gpu(DerivedMesh *dm, GPUVertexAttribs *gattribs, DMVertexAttribs *attribs)
{
CustomData *vdata, *fdata, *tfdata = NULL;
int a, b, layer;
/* From the layers requested by the GLSL shader, figure out which ones are
* actually available for this derivedmesh, and retrieve the pointers */
memset(attribs, 0, sizeof(DMVertexAttribs));
vdata = &dm->vertData;
fdata = tfdata = dm->getTessFaceDataLayout(dm);
/* calc auto bump scale if necessary */
if(dm->auto_bump_scale<=0.0f)
DM_calc_auto_bump_scale(dm);
/* add a tangent layer if necessary */
for(b = 0; b < gattribs->totlayer; b++)
if(gattribs->layer[b].type == CD_TANGENT)
if(CustomData_get_layer_index(fdata, CD_TANGENT) == -1)
DM_add_tangent_layer(dm);
for(b = 0; b < gattribs->totlayer; b++) {
if(gattribs->layer[b].type == CD_MTFACE) {
/* uv coordinates */
if(gattribs->layer[b].name[0])
layer = CustomData_get_named_layer_index(tfdata, CD_MTFACE,
gattribs->layer[b].name);
else
layer = CustomData_get_active_layer_index(tfdata, CD_MTFACE);
if(layer != -1) {
a = attribs->tottface++;
attribs->tface[a].array = tfdata->layers[layer].data;
attribs->tface[a].emOffset = tfdata->layers[layer].offset;
attribs->tface[a].glIndex = gattribs->layer[b].glindex;
/* attribs->tface[a].glTexco = gattribs->layer[b].gltexco; */ /* BMESH_TODO, trunk has this but not bmesh, need to investigate whats going on here - campbell */
}
/* BMESH ONLY, may need to get this working?, otherwise remove */
/* else {
int player;
CustomData *pdata = dm->getPolyDataLayout(dm);
if(gattribs->layer[b].name[0])
player = CustomData_get_named_layer_index(pdata, CD_MTEXPOLY,
gattribs->layer[b].name);
else
player = CustomData_get_active_layer_index(pdata, CD_MTEXPOLY);
if (player != -1) {
a = attribs->tottface++;
attribs->tface[a].array = NULL;
attribs->tface[a].emOffset = pdata->layers[layer].offset;
attribs->tface[a].glIndex = gattribs->layer[b].glindex;
attribs->tface[a].glTexco = gattribs->layer[b].gltexco;
}
}
*/
}
else if(gattribs->layer[b].type == CD_MCOL) {
/* vertex colors */
if(gattribs->layer[b].name[0])
layer = CustomData_get_named_layer_index(tfdata, CD_MCOL,
gattribs->layer[b].name);
else
layer = CustomData_get_active_layer_index(tfdata, CD_MCOL);
if(layer != -1) {
a = attribs->totmcol++;
attribs->mcol[a].array = tfdata->layers[layer].data;
attribs->mcol[a].emOffset = tfdata->layers[layer].offset;
attribs->mcol[a].glIndex = gattribs->layer[b].glindex;
}
}
else if(gattribs->layer[b].type == CD_TANGENT) {
/* tangents */
layer = CustomData_get_layer_index(fdata, CD_TANGENT);
if(layer != -1) {
attribs->tottang = 1;
attribs->tang.array = fdata->layers[layer].data;
attribs->tang.emOffset = fdata->layers[layer].offset;
attribs->tang.glIndex = gattribs->layer[b].glindex;
}
}
else if(gattribs->layer[b].type == CD_ORCO) {
/* original coordinates */
layer = CustomData_get_layer_index(vdata, CD_ORCO);
if(layer != -1) {
attribs->totorco = 1;
attribs->orco.array = vdata->layers[layer].data;
attribs->orco.emOffset = vdata->layers[layer].offset;
attribs->orco.glIndex = gattribs->layer[b].glindex;
attribs->orco.glTexco = gattribs->layer[b].gltexco;
}
}
}
}
/* Set object's bounding box based on DerivedMesh min/max data */
void DM_set_object_boundbox(Object *ob, DerivedMesh *dm)
{
float min[3], max[3];
INIT_MINMAX(min, max);
dm->getMinMax(dm, min, max);
if(!ob->bb)
ob->bb= MEM_callocN(sizeof(BoundBox), "DM-BoundBox");
boundbox_set_from_min_max(ob->bb, min, max);
}
/* --- NAVMESH (begin) --- */
#ifdef WITH_GAMEENGINE
BM_INLINE int navmesh_bit(int a, int b)
{
return (a & (1 << b)) >> b;
}
BM_INLINE void navmesh_intToCol(int i, float col[3])
{
int r = navmesh_bit(i, 0) + navmesh_bit(i, 3) * 2 + 1;
int g = navmesh_bit(i, 1) + navmesh_bit(i, 4) * 2 + 1;
int b = navmesh_bit(i, 2) + navmesh_bit(i, 5) * 2 + 1;
col[0] = 1 - r*63.0f/255.0f;
col[1] = 1 - g*63.0f/255.0f;
col[2] = 1 - b*63.0f/255.0f;
}
static void navmesh_drawColored(DerivedMesh *dm)
{
int a, glmode;
MVert *mvert = (MVert *)CustomData_get_layer(&dm->vertData, CD_MVERT);
MFace *mface = (MFace *)CustomData_get_layer(&dm->faceData, CD_MFACE);
int *polygonIdx = (int *)CustomData_get_layer(&dm->faceData, CD_RECAST);
float col[3];
if (!polygonIdx)
return;
/*
//UI_ThemeColor(TH_WIRE);
glDisable(GL_LIGHTING);
glLineWidth(2.0);
dm->drawEdges(dm, 0, 1);
glLineWidth(1.0);
glEnable(GL_LIGHTING);*/
glDisable(GL_LIGHTING);
/* if(GPU_buffer_legacy(dm) ) */ { /* TODO - VBO draw code, not high priority - campbell */
DEBUG_VBO( "Using legacy code. drawNavMeshColored\n" );
//glShadeModel(GL_SMOOTH);
glBegin(glmode = GL_QUADS);
for(a = 0; a < dm->numTessFaceData; a++, mface++) {
int new_glmode = mface->v4?GL_QUADS:GL_TRIANGLES;
int pi = polygonIdx[a];
if (pi <= 0) {
zero_v3(col);
}
else {
navmesh_intToCol(pi, col);
}
if(new_glmode != glmode) {
glEnd();
glBegin(glmode = new_glmode);
}
glColor3fv(col);
glVertex3fv(mvert[mface->v1].co);
glVertex3fv(mvert[mface->v2].co);
glVertex3fv(mvert[mface->v3].co);
if(mface->v4) {
glVertex3fv(mvert[mface->v4].co);
}
}
glEnd();
}
glEnable(GL_LIGHTING);
}
static void navmesh_DM_drawFacesTex(DerivedMesh *dm,
int (*setDrawOptions)(MTFace *tface, int has_mcol, int matnr),
int (*compareDrawOptions)(void *userData, int cur_index, int next_index),
void *userData)
{
(void) setDrawOptions;
(void) compareDrawOptions;
(void) userData;
navmesh_drawColored(dm);
}
static void navmesh_DM_drawFacesSolid(DerivedMesh *dm,
float (*partial_redraw_planes)[4],
int UNUSED(fast), int (*setMaterial)(int, void *attribs))
{
(void) partial_redraw_planes;
(void) setMaterial;
//drawFacesSolid_original(dm, partial_redraw_planes, fast, setMaterial);
navmesh_drawColored(dm);
}
static DerivedMesh *navmesh_dm_createNavMeshForVisualization(DerivedMesh *dm)
{
DerivedMesh *result;
int maxFaces = dm->getNumPolys(dm);
int *recastData;
int vertsPerPoly=0, nverts=0, ndtris=0, npolys=0;
float* verts=NULL;
unsigned short *dtris=NULL, *dmeshes=NULL, *polys=NULL;
int *dtrisToPolysMap=NULL, *dtrisToTrisMap=NULL, *trisToFacesMap=NULL;
int res;
result = CDDM_copy(dm, 0);
if (!CustomData_has_layer(&result->faceData, CD_RECAST)) {
int *sourceRecastData = (int*)CustomData_get_layer(&dm->faceData, CD_RECAST);
if (sourceRecastData) {
CustomData_add_layer_named(&result->faceData, CD_RECAST, CD_DUPLICATE,
sourceRecastData, maxFaces, "recastData");
}
}
recastData = (int*)CustomData_get_layer(&result->faceData, CD_RECAST);
/* note: This is not good design! - really should not be doing this */
result->drawFacesTex = navmesh_DM_drawFacesTex;
result->drawFacesSolid = navmesh_DM_drawFacesSolid;
/* process mesh */
res = buildNavMeshDataByDerivedMesh(dm, &vertsPerPoly, &nverts, &verts, &ndtris, &dtris,
&npolys, &dmeshes, &polys, &dtrisToPolysMap, &dtrisToTrisMap,
&trisToFacesMap);
if (res) {
size_t polyIdx;
/* invalidate concave polygon */
for (polyIdx=0; polyIdx<(size_t)npolys; polyIdx++) {
unsigned short* poly = &polys[polyIdx*2*vertsPerPoly];
if (!polyIsConvex(poly, vertsPerPoly, verts)) {
/* set negative polygon idx to all faces */
unsigned short *dmesh = &dmeshes[4*polyIdx];
unsigned short tbase = dmesh[2];
unsigned short tnum = dmesh[3];
unsigned short ti;
for (ti=0; ti<tnum; ti++) {
unsigned short triidx = dtrisToTrisMap[tbase+ti];
unsigned short faceidx = trisToFacesMap[triidx];
if (recastData[faceidx] > 0) {
recastData[faceidx] = -recastData[faceidx];
}
}
}
}
}
else {
printf("Error during creation polygon infos\n");
}
/* clean up */
if (verts!=NULL)
MEM_freeN(verts);
if (dtris!=NULL)
MEM_freeN(dtris);
if (dmeshes!=NULL)
MEM_freeN(dmeshes);
if (polys!=NULL)
MEM_freeN(polys);
if (dtrisToPolysMap!=NULL)
MEM_freeN(dtrisToPolysMap);
if (dtrisToTrisMap!=NULL)
MEM_freeN(dtrisToTrisMap);
if (trisToFacesMap!=NULL)
MEM_freeN(trisToFacesMap);
return result;
}
#endif /* WITH_GAMEENGINE */
/* --- NAVMESH (end) --- */
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