/* Raytracing for vertex to bone/vertex visibility */
static void heat_ray_tree_create(LaplacianSystem *sys)
{
MFace *mface = sys->heat.mface;
float (*verts)[3] = sys->heat.verts;
int totface = sys->heat.totface;
int totvert = sys->heat.totvert;
int a;
sys->heat.bvhtree = BLI_bvhtree_new(totface, 0.0f, 4, 6);
sys->heat.vface = MEM_callocN(sizeof(MFace*)*totvert, "HeatVFaces");
for(a=0; a<totface; a++) {
MFace *mf = mface+a;
float bb[6];
INIT_MINMAX(bb, bb+3);
DO_MINMAX(verts[mf->v1], bb, bb+3);
DO_MINMAX(verts[mf->v2], bb, bb+3);
DO_MINMAX(verts[mf->v3], bb, bb+3);
if(mf->v4) {
DO_MINMAX(verts[mf->v4], bb, bb+3);
}
BLI_bvhtree_insert(sys->heat.bvhtree, a, bb, 2);
//Setup inverse pointers to use on isect.orig
sys->heat.vface[mf->v1]= mf;
sys->heat.vface[mf->v2]= mf;
sys->heat.vface[mf->v3]= mf;
if(mf->v4) sys->heat.vface[mf->v4]= mf;
}
BLI_bvhtree_balance(sys->heat.bvhtree);
}
static void calc_ocval_face(float *v1, float *v2, float *v3, float *v4, short x, short y, short z, OcVal *ov)
{
float min[3], max[3];
int ocmin, ocmax;
copy_v3_v3(min, v1);
copy_v3_v3(max, v1);
DO_MINMAX(v2, min, max);
DO_MINMAX(v3, min, max);
if(v4) {
DO_MINMAX(v4, min, max);
}
ocmin= OCVALRES*(min[0]-x);
ocmax= OCVALRES*(max[0]-x);
ov->ocx= BROW16(ocmin, ocmax);
ocmin= OCVALRES*(min[1]-y);
ocmax= OCVALRES*(max[1]-y);
ov->ocy= BROW16(ocmin, ocmax);
ocmin= OCVALRES*(min[2]-z);
ocmax= OCVALRES*(max[2]-z);
ov->ocz= BROW16(ocmin, ocmax);
}
void RE_rayobject_merge_bb(RayObject *r, float *min, float *max)
{
if (RE_rayobject_isRayFace(r)) {
RayFace *face = (RayFace*) RE_rayobject_align(r);
DO_MINMAX(face->v1, min, max);
DO_MINMAX(face->v2, min, max);
DO_MINMAX(face->v3, min, max);
if (RE_rayface_isQuad(face)) DO_MINMAX(face->v4, min, max);
}
else if (RE_rayobject_isVlakPrimitive(r)) {
VlakPrimitive *face = (VlakPrimitive*) RE_rayobject_align(r);
RayFace nface;
rayface_from_vlak(&nface, face->ob, face->face);
DO_MINMAX(nface.v1, min, max);
DO_MINMAX(nface.v2, min, max);
DO_MINMAX(nface.v3, min, max);
if (RE_rayface_isQuad(&nface)) DO_MINMAX(nface.v4, min, max);
}
else if (RE_rayobject_isRayAPI(r)) {
r = RE_rayobject_align(r);
r->api->bb(r, min, max);
}
else
assert(0);
}
/* find the bounding box of an objectinstance in global space */
void global_bounds_obi(Render *re, ObjectInstanceRen *obi, float *bbmin, float *bbmax)
{
ObjectRen *obr = obi->obr;
VolumePrecache *vp = obi->volume_precache;
VertRen *ver= NULL;
float co[3];
int a;
if (vp->bbmin != NULL && vp->bbmax != NULL) {
copy_v3_v3(bbmin, vp->bbmin);
copy_v3_v3(bbmax, vp->bbmax);
return;
}
vp->bbmin = MEM_callocN(sizeof(float)*3, "volume precache min boundbox corner");
vp->bbmax = MEM_callocN(sizeof(float)*3, "volume precache max boundbox corner");
INIT_MINMAX(bbmin, bbmax);
for(a=0; a<obr->totvert; a++) {
if((a & 255)==0) ver= obr->vertnodes[a>>8].vert;
else ver++;
copy_v3_v3(co, ver->co);
/* transformed object instance in camera space */
if(obi->flag & R_TRANSFORMED)
mul_m4_v3(obi->mat, co);
/* convert to global space */
mul_m4_v3(re->viewinv, co);
DO_MINMAX(co, vp->bbmin, vp->bbmax);
}
static void hair_get_boundbox(ClothModifierData *clmd, float gmin[3], float gmax[3])
{
Cloth *cloth = clmd->clothObject;
Implicit_Data *data = cloth->implicit;
unsigned int mvert_num = cloth->mvert_num;
int i;
INIT_MINMAX(gmin, gmax);
for (i = 0; i < mvert_num; i++) {
float x[3];
BPH_mass_spring_get_motion_state(data, i, x, NULL);
DO_MINMAX(x, gmin, gmax);
}
}
static void RE_rayobject_instance_bb(RayObject *o, float *min, float *max)
{
//TODO:
// *better bb.. calculated without rotations of bb
// *maybe cache that better-fitted-BB at the InstanceRayObject
InstanceRayObject *obj = (InstanceRayObject *)o;
float m[3], M[3], t[3];
int i, j;
INIT_MINMAX(m, M);
RE_rayobject_merge_bb(obj->target, m, M);
//There must be a faster way than rotating all the 8 vertexs of the BB
for (i = 0; i < 8; i++) {
for (j = 0; j < 3; j++) t[j] = (i & (1 << j)) ? M[j] : m[j];
mul_m4_v3(obj->target2global, t);
DO_MINMAX(t, min, max);
}
}
ScatterTree *scatter_tree_new(ScatterSettings *ss[3], float scale, float error,
float (*co)[3], float (*color)[3], float *area, int totpoint)
{
ScatterTree *tree;
ScatterPoint *points, **refpoints;
int i;
/* allocate tree */
tree= MEM_callocN(sizeof(ScatterTree), "ScatterTree");
tree->scale= scale;
tree->error= error;
tree->totpoint= totpoint;
tree->ss[0]= ss[0];
tree->ss[1]= ss[1];
tree->ss[2]= ss[2];
points= MEM_callocN(sizeof(ScatterPoint)*totpoint, "ScatterPoints");
refpoints= MEM_callocN(sizeof(ScatterPoint*)*totpoint, "ScatterRefPoints");
tree->points= points;
tree->refpoints= refpoints;
/* build points */
INIT_MINMAX(tree->min, tree->max);
for(i=0; i<totpoint; i++) {
copy_v3_v3(points[i].co, co[i]);
copy_v3_v3(points[i].rad, color[i]);
points[i].area= fabsf(area[i])/(tree->scale*tree->scale);
points[i].back= (area[i] < 0.0f);
mul_v3_fl(points[i].co, 1.0f/tree->scale);
DO_MINMAX(points[i].co, tree->min, tree->max);
refpoints[i]= points + i;
}
return tree;
}
void boundbox_mesh(Mesh *me, float *loc, float *size)
{
MVert *mvert;
BoundBox *bb;
float min[3], max[3];
float mloc[3], msize[3];
int a;
if(me->bb==0) me->bb= MEM_callocN(sizeof(BoundBox), "boundbox");
bb= me->bb;
INIT_MINMAX(min, max);
if (!loc) loc= mloc;
if (!size) size= msize;
mvert= me->mvert;
for(a=0; a<me->totvert; a++, mvert++) {
DO_MINMAX(mvert->co, min, max);
}
if(!me->totvert) {
min[0] = min[1] = min[2] = -1.0f;
max[0] = max[1] = max[2] = 1.0f;
}
loc[0]= (min[0]+max[0])/2.0f;
loc[1]= (min[1]+max[1])/2.0f;
loc[2]= (min[2]+max[2])/2.0f;
size[0]= (max[0]-min[0])/2.0f;
size[1]= (max[1]-min[1])/2.0f;
size[2]= (max[2]-min[2])/2.0f;
boundbox_set_from_min_max(bb, min, max);
}
static void harmonic_coordinates_bind(Scene *UNUSED(scene), MeshDeformModifierData *mmd, MeshDeformBind *mdb)
{
MDefBindInfluence *inf;
MDefInfluence *mdinf;
MDefCell *cell;
float center[3], vec[3], maxwidth, totweight;
int a, b, x, y, z, totinside, offset;
/* compute bounding box of the cage mesh */
INIT_MINMAX(mdb->min, mdb->max);
for(a=0; a<mdb->totcagevert; a++)
DO_MINMAX(mdb->cagecos[a], mdb->min, mdb->max);
/* allocate memory */
mdb->size= (2<<(mmd->gridsize-1)) + 2;
mdb->size3= mdb->size*mdb->size*mdb->size;
mdb->tag= MEM_callocN(sizeof(int)*mdb->size3, "MeshDeformBindTag");
mdb->phi= MEM_callocN(sizeof(float)*mdb->size3, "MeshDeformBindPhi");
mdb->totalphi= MEM_callocN(sizeof(float)*mdb->size3, "MeshDeformBindTotalPhi");
mdb->boundisect= MEM_callocN(sizeof(*mdb->boundisect)*mdb->size3, "MDefBoundIsect");
mdb->semibound= MEM_callocN(sizeof(int)*mdb->size3, "MDefSemiBound");
mdb->inside= MEM_callocN(sizeof(int)*mdb->totvert, "MDefInside");
if(mmd->flag & MOD_MDEF_DYNAMIC_BIND)
mdb->dyngrid= MEM_callocN(sizeof(MDefBindInfluence*)*mdb->size3, "MDefDynGrid");
else
mdb->weights= MEM_callocN(sizeof(float)*mdb->totvert*mdb->totcagevert, "MDefWeights");
mdb->memarena= BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, "harmonic coords arena");
BLI_memarena_use_calloc(mdb->memarena);
/* make bounding box equal size in all directions, add padding, and compute
* width of the cells */
maxwidth = -1.0f;
for(a=0; a<3; a++)
if(mdb->max[a]-mdb->min[a] > maxwidth)
maxwidth= mdb->max[a]-mdb->min[a];
for(a=0; a<3; a++) {
center[a]= (mdb->min[a]+mdb->max[a])*0.5f;
mdb->min[a]= center[a] - maxwidth*0.5f;
mdb->max[a]= center[a] + maxwidth*0.5f;
mdb->width[a]= (mdb->max[a]-mdb->min[a])/(mdb->size-4);
mdb->min[a] -= 2.1f*mdb->width[a];
mdb->max[a] += 2.1f*mdb->width[a];
mdb->width[a]= (mdb->max[a]-mdb->min[a])/mdb->size;
mdb->halfwidth[a]= mdb->width[a]*0.5f;
}
progress_bar(0, "Setting up mesh deform system");
totinside= 0;
for(a=0; a<mdb->totvert; a++) {
copy_v3_v3(vec, mdb->vertexcos[a]);
mdb->inside[a]= meshdeform_inside_cage(mdb, vec);
if(mdb->inside[a])
totinside++;
}
/* free temporary MDefBoundIsects */
BLI_memarena_free(mdb->memarena);
mdb->memarena= BLI_memarena_new(BLI_MEMARENA_STD_BUFSIZE, "harmonic coords arena");
/* start with all cells untyped */
for(a=0; a<mdb->size3; a++)
mdb->tag[a]= MESHDEFORM_TAG_UNTYPED;
/* detect intersections and tag boundary cells */
for(z=0; z<mdb->size; z++)
for(y=0; y<mdb->size; y++)
for(x=0; x<mdb->size; x++)
meshdeform_add_intersections(mdb, x, y, z);
/* compute exterior and interior tags */
meshdeform_bind_floodfill(mdb);
for(z=0; z<mdb->size; z++)
for(y=0; y<mdb->size; y++)
for(x=0; x<mdb->size; x++)
meshdeform_check_semibound(mdb, x, y, z);
/* solve */
meshdeform_matrix_solve(mdb);
/* assign results */
if(mmd->flag & MOD_MDEF_DYNAMIC_BIND) {
mmd->totinfluence= 0;
for(a=0; a<mdb->size3; a++)
for(inf=mdb->dyngrid[a]; inf; inf=inf->next)
mmd->totinfluence++;
/* convert MDefBindInfluences to smaller MDefInfluences */
mmd->dyngrid= MEM_callocN(sizeof(MDefCell)*mdb->size3, "MDefDynGrid");
mmd->dyninfluences= MEM_callocN(sizeof(MDefInfluence)*mmd->totinfluence, "MDefInfluence");
offset= 0;
for(a=0; a<mdb->size3; a++) {
cell= &mmd->dyngrid[a];
cell->offset= offset;
totweight= 0.0f;
mdinf= mmd->dyninfluences + cell->offset;
for(inf=mdb->dyngrid[a]; inf; inf=inf->next, mdinf++) {
mdinf->weight= inf->weight;
mdinf->vertex= inf->vertex;
totweight += mdinf->weight;
cell->totinfluence++;
}
if(totweight > 0.0f) {
mdinf= mmd->dyninfluences + cell->offset;
for(b=0; b<cell->totinfluence; b++, mdinf++)
mdinf->weight /= totweight;
}
offset += cell->totinfluence;
}
mmd->dynverts= mdb->inside;
mmd->dyngridsize= mdb->size;
copy_v3_v3(mmd->dyncellmin, mdb->min);
mmd->dyncellwidth= mdb->width[0];
MEM_freeN(mdb->dyngrid);
}
else {
mmd->bindweights= mdb->weights;
MEM_freeN(mdb->inside);
}
MEM_freeN(mdb->tag);
MEM_freeN(mdb->phi);
MEM_freeN(mdb->totalphi);
MEM_freeN(mdb->boundisect);
MEM_freeN(mdb->semibound);
BLI_memarena_free(mdb->memarena);
}
static void cuboid_do(
CastModifierData *cmd, Object *ob, DerivedMesh *dm,
float (*vertexCos)[3], int numVerts)
{
MDeformVert *dvert = NULL;
Object *ctrl_ob = NULL;
int i, defgrp_index;
int has_radius = 0;
short flag;
float fac, facm;
float min[3], max[3], bb[8][3];
float center[3] = {0.0f, 0.0f, 0.0f};
float mat[4][4], imat[4][4];
fac = cmd->fac;
facm = 1.0f - fac;
flag = cmd->flag;
ctrl_ob = cmd->object;
/* now we check which options the user wants */
/* 1) (flag was checked in the "if (ctrl_ob)" block above) */
/* 2) cmd->radius > 0.0f: only the vertices within this radius from
* the center of the effect should be deformed */
if (cmd->radius > FLT_EPSILON) has_radius = 1;
/* 3) if we were given a vertex group name,
* only those vertices should be affected */
modifier_get_vgroup(ob, dm, cmd->defgrp_name, &dvert, &defgrp_index);
if (ctrl_ob) {
if(flag & MOD_CAST_USE_OB_TRANSFORM) {
invert_m4_m4(ctrl_ob->imat, ctrl_ob->obmat);
mul_m4_m4m4(mat, ob->obmat, ctrl_ob->imat);
invert_m4_m4(imat, mat);
}
invert_m4_m4(ob->imat, ob->obmat);
mul_v3_m4v3(center, ob->imat, ctrl_ob->obmat[3]);
}
if((flag & MOD_CAST_SIZE_FROM_RADIUS) && has_radius) {
for(i = 0; i < 3; i++) {
min[i] = -cmd->radius;
max[i] = cmd->radius;
}
} else if(!(flag & MOD_CAST_SIZE_FROM_RADIUS) && cmd->size > 0) {
for(i = 0; i < 3; i++) {
min[i] = -cmd->size;
max[i] = cmd->size;
}
} else {
/* get bound box */
/* We can't use the object's bound box because other modifiers
* may have changed the vertex data. */
INIT_MINMAX(min, max);
/* Cast's center is the ob's own center in its local space,
* by default, but if the user defined a control object, we use
* its location, transformed to ob's local space. */
if (ctrl_ob) {
float vec[3];
/* let the center of the ctrl_ob be part of the bound box: */
DO_MINMAX(center, min, max);
for (i = 0; i < numVerts; i++) {
sub_v3_v3v3(vec, vertexCos[i], center);
DO_MINMAX(vec, min, max);
}
}
else {
for (i = 0; i < numVerts; i++) {
DO_MINMAX(vertexCos[i], min, max);
}
}
/* we want a symmetric bound box around the origin */
if (fabs(min[0]) > fabs(max[0])) max[0] = fabs(min[0]);
if (fabs(min[1]) > fabs(max[1])) max[1] = fabs(min[1]);
if (fabs(min[2]) > fabs(max[2])) max[2] = fabs(min[2]);
min[0] = -max[0];
min[1] = -max[1];
min[2] = -max[2];
}
/* building our custom bounding box */
bb[0][0] = bb[2][0] = bb[4][0] = bb[6][0] = min[0];
bb[1][0] = bb[3][0] = bb[5][0] = bb[7][0] = max[0];
bb[0][1] = bb[1][1] = bb[4][1] = bb[5][1] = min[1];
bb[2][1] = bb[3][1] = bb[6][1] = bb[7][1] = max[1];
bb[0][2] = bb[1][2] = bb[2][2] = bb[3][2] = min[2];
bb[4][2] = bb[5][2] = bb[6][2] = bb[7][2] = max[2];
/* ready to apply the effect, one vertex at a time;
* tiny optimization: the code is separated (with parts repeated)
* in two possible cases:
* with or w/o a vgroup. With lots of if's in the code below,
* further optimizations are possible, if needed */
if (dvert) { /* with a vgroup */
float fac_orig = fac;
for (i = 0; i < numVerts; i++) {
MDeformWeight *dw = NULL;
int j, octant, coord;
float d[3], dmax, apex[3], fbb;
float tmp_co[3];
copy_v3_v3(tmp_co, vertexCos[i]);
if(ctrl_ob) {
if(flag & MOD_CAST_USE_OB_TRANSFORM) {
mul_m4_v3(mat, tmp_co);
} else {
sub_v3_v3(tmp_co, center);
}
}
if (has_radius) {
if (fabsf(tmp_co[0]) > cmd->radius ||
fabsf(tmp_co[1]) > cmd->radius ||
fabsf(tmp_co[2]) > cmd->radius) continue;
}
for (j = 0; j < dvert[i].totweight; ++j) {
if(dvert[i].dw[j].def_nr == defgrp_index) {
dw = &dvert[i].dw[j];
break;
}
}
if (!dw) continue;
fac = fac_orig * dw->weight;
facm = 1.0f - fac;
/* The algo used to project the vertices to their
* bounding box (bb) is pretty simple:
* for each vertex v:
* 1) find in which octant v is in;
* 2) find which outer "wall" of that octant is closer to v;
* 3) calculate factor (var fbb) to project v to that wall;
* 4) project. */
/* find in which octant this vertex is in */
octant = 0;
if (tmp_co[0] > 0.0f) octant += 1;
if (tmp_co[1] > 0.0f) octant += 2;
if (tmp_co[2] > 0.0f) octant += 4;
/* apex is the bb's vertex at the chosen octant */
copy_v3_v3(apex, bb[octant]);
/* find which bb plane is closest to this vertex ... */
d[0] = tmp_co[0] / apex[0];
d[1] = tmp_co[1] / apex[1];
d[2] = tmp_co[2] / apex[2];
/* ... (the closest has the higher (closer to 1) d value) */
dmax = d[0];
coord = 0;
if (d[1] > dmax) {
dmax = d[1];
coord = 1;
}
if (d[2] > dmax) {
/* dmax = d[2]; */ /* commented, we don't need it */
coord = 2;
}
/* ok, now we know which coordinate of the vertex to use */
if (fabsf(tmp_co[coord]) < FLT_EPSILON) /* avoid division by zero */
continue;
/* finally, this is the factor we wanted, to project the vertex
* to its bounding box (bb) */
fbb = apex[coord] / tmp_co[coord];
/* calculate the new vertex position */
if (flag & MOD_CAST_X)
tmp_co[0] = facm * tmp_co[0] + fac * tmp_co[0] * fbb;
if (flag & MOD_CAST_Y)
tmp_co[1] = facm * tmp_co[1] + fac * tmp_co[1] * fbb;
if (flag & MOD_CAST_Z)
tmp_co[2] = facm * tmp_co[2] + fac * tmp_co[2] * fbb;
if(ctrl_ob) {
if(flag & MOD_CAST_USE_OB_TRANSFORM) {
mul_m4_v3(imat, tmp_co);
} else {
add_v3_v3(tmp_co, center);
}
}
copy_v3_v3(vertexCos[i], tmp_co);
}
return;
}
/* no vgroup (check previous case for comments about the code) */
for (i = 0; i < numVerts; i++) {
int octant, coord;
float d[3], dmax, fbb, apex[3];
float tmp_co[3];
copy_v3_v3(tmp_co, vertexCos[i]);
if(ctrl_ob) {
if(flag & MOD_CAST_USE_OB_TRANSFORM) {
mul_m4_v3(mat, tmp_co);
} else {
sub_v3_v3(tmp_co, center);
}
}
if (has_radius) {
if (fabsf(tmp_co[0]) > cmd->radius ||
fabsf(tmp_co[1]) > cmd->radius ||
fabsf(tmp_co[2]) > cmd->radius) continue;
}
octant = 0;
if (tmp_co[0] > 0.0f) octant += 1;
if (tmp_co[1] > 0.0f) octant += 2;
if (tmp_co[2] > 0.0f) octant += 4;
copy_v3_v3(apex, bb[octant]);
d[0] = tmp_co[0] / apex[0];
d[1] = tmp_co[1] / apex[1];
d[2] = tmp_co[2] / apex[2];
dmax = d[0];
coord = 0;
if (d[1] > dmax) {
dmax = d[1];
coord = 1;
}
if (d[2] > dmax) {
/* dmax = d[2]; */ /* commented, we don't need it */
coord = 2;
}
if (fabsf(tmp_co[coord]) < FLT_EPSILON)
continue;
fbb = apex[coord] / tmp_co[coord];
if (flag & MOD_CAST_X)
tmp_co[0] = facm * tmp_co[0] + fac * tmp_co[0] * fbb;
if (flag & MOD_CAST_Y)
tmp_co[1] = facm * tmp_co[1] + fac * tmp_co[1] * fbb;
if (flag & MOD_CAST_Z)
tmp_co[2] = facm * tmp_co[2] + fac * tmp_co[2] * fbb;
if(ctrl_ob) {
if(flag & MOD_CAST_USE_OB_TRANSFORM) {
mul_m4_v3(imat, tmp_co);
} else {
add_v3_v3(tmp_co, center);
}
}
copy_v3_v3(vertexCos[i], tmp_co);
}
}
static int dupli_extrude_cursor(bContext *C, wmOperator *op, wmEvent *event)
{
ViewContext vc;
EditVert *eve;
float min[3], max[3];
int done= 0;
short use_proj;
em_setup_viewcontext(C, &vc);
use_proj= (vc.scene->toolsettings->snap_flag & SCE_SNAP) && (vc.scene->toolsettings->snap_mode==SCE_SNAP_MODE_FACE);
invert_m4_m4(vc.obedit->imat, vc.obedit->obmat);
INIT_MINMAX(min, max);
for(eve= vc.em->verts.first; eve; eve= eve->next) {
if(eve->f & SELECT) {
DO_MINMAX(eve->co, min, max);
done= 1;
}
}
/* call extrude? */
if(done) {
const short rot_src= RNA_boolean_get(op->ptr, "rotate_source");
EditEdge *eed;
float vec[3], cent[3], mat[3][3];
float nor[3]= {0.0, 0.0, 0.0};
/* 2D normal calc */
float mval_f[2];
mval_f[0]= (float)event->mval[0];
mval_f[1]= (float)event->mval[1];
done= 0;
/* calculate the normal for selected edges */
for(eed= vc.em->edges.first; eed; eed= eed->next) {
if(eed->f & SELECT) {
float co1[3], co2[3];
mul_v3_m4v3(co1, vc.obedit->obmat, eed->v1->co);
mul_v3_m4v3(co2, vc.obedit->obmat, eed->v2->co);
project_float_noclip(vc.ar, co1, co1);
project_float_noclip(vc.ar, co2, co2);
/* 2D rotate by 90d while adding.
* (x, y) = (y, -x)
*
* accumulate the screenspace normal in 2D,
* with screenspace edge length weighting the result. */
if(line_point_side_v2(co1, co2, mval_f) >= 0.0f) {
nor[0] += (co1[1] - co2[1]);
nor[1] += -(co1[0] - co2[0]);
}
else {
nor[0] += (co2[1] - co1[1]);
nor[1] += -(co2[0] - co1[0]);
}
done= 1;
}
}
if(done) {
float view_vec[3], cross[3];
/* convert the 2D nomal into 3D */
mul_mat3_m4_v3(vc.rv3d->viewinv, nor); /* worldspace */
mul_mat3_m4_v3(vc.obedit->imat, nor); /* local space */
/* correct the normal to be aligned on the view plane */
copy_v3_v3(view_vec, vc.rv3d->viewinv[2]);
mul_mat3_m4_v3(vc.obedit->imat, view_vec);
cross_v3_v3v3(cross, nor, view_vec);
cross_v3_v3v3(nor, view_vec, cross);
normalize_v3(nor);
}
/* center */
mid_v3_v3v3(cent, min, max);
copy_v3_v3(min, cent);
mul_m4_v3(vc.obedit->obmat, min); // view space
view3d_get_view_aligned_coordinate(&vc, min, event->mval, TRUE);
mul_m4_v3(vc.obedit->imat, min); // back in object space
sub_v3_v3(min, cent);
/* calculate rotation */
unit_m3(mat);
if(done) {
float dot;
copy_v3_v3(vec, min);
normalize_v3(vec);
dot= dot_v3v3(vec, nor);
if( fabs(dot)<0.999) {
float cross[3], si, q1[4];
cross_v3_v3v3(cross, nor, vec);
normalize_v3(cross);
dot= 0.5f*saacos(dot);
/* halve the rotation if its applied twice */
if(rot_src) dot *= 0.5f;
si= (float)sin(dot);
q1[0]= (float)cos(dot);
q1[1]= cross[0]*si;
q1[2]= cross[1]*si;
q1[3]= cross[2]*si;
quat_to_mat3( mat,q1);
}
}
if(rot_src) {
rotateflag(vc.em, SELECT, cent, mat);
/* also project the source, for retopo workflow */
if(use_proj)
EM_project_snap_verts(C, vc.ar, vc.obedit, vc.em);
}
extrudeflag(vc.obedit, vc.em, SELECT, nor, 0);
rotateflag(vc.em, SELECT, cent, mat);
translateflag(vc.em, SELECT, min);
recalc_editnormals(vc.em);
}
else if(vc.em->selectmode & SCE_SELECT_VERTEX) {
float imat[4][4];
const float *curs= give_cursor(vc.scene, vc.v3d);
copy_v3_v3(min, curs);
view3d_get_view_aligned_coordinate(&vc, min, event->mval, TRUE);
eve= addvertlist(vc.em, 0, NULL);
invert_m4_m4(imat, vc.obedit->obmat);
mul_v3_m4v3(eve->co, imat, min);
eve->f= SELECT;
}
if(use_proj)
EM_project_snap_verts(C, vc.ar, vc.obedit, vc.em);
WM_event_add_notifier(C, NC_GEOM|ND_DATA, vc.obedit->data);
DAG_id_tag_update(vc.obedit->data, 0);
return OPERATOR_FINISHED;
}
/* mode: 1 = proportional, 2 = all joints (for bones only) */
static void make_trans_verts(Object *obedit, float *min, float *max, int mode)
{
Nurb *nu;
BezTriple *bezt;
BPoint *bp;
TransVert *tv=NULL;
MetaElem *ml;
EditVert *eve;
EditBone *ebo;
float total, center[3], centroid[3];
int a;
tottrans= 0; // global!
INIT_MINMAX(min, max);
centroid[0]=centroid[1]=centroid[2]= 0.0;
if(obedit->type==OB_MESH) {
Mesh *me= obedit->data;
EditMesh *em= me->edit_mesh;
int proptrans= 0;
// transform now requires awareness for select mode, so we tag the f1 flags in verts
tottrans= 0;
if(em->selectmode & SCE_SELECT_VERTEX) {
for(eve= em->verts.first; eve; eve= eve->next) {
if(eve->h==0 && (eve->f & SELECT)) {
eve->f1= SELECT;
tottrans++;
}
else eve->f1= 0;
}
}
else if(em->selectmode & SCE_SELECT_EDGE) {
EditEdge *eed;
for(eve= em->verts.first; eve; eve= eve->next) eve->f1= 0;
for(eed= em->edges.first; eed; eed= eed->next) {
if(eed->h==0 && (eed->f & SELECT)) eed->v1->f1= eed->v2->f1= SELECT;
}
for(eve= em->verts.first; eve; eve= eve->next) if(eve->f1) tottrans++;
}
else {
EditFace *efa;
for(eve= em->verts.first; eve; eve= eve->next) eve->f1= 0;
for(efa= em->faces.first; efa; efa= efa->next) {
if(efa->h==0 && (efa->f & SELECT)) {
efa->v1->f1= efa->v2->f1= efa->v3->f1= SELECT;
if(efa->v4) efa->v4->f1= SELECT;
}
}
for(eve= em->verts.first; eve; eve= eve->next) if(eve->f1) tottrans++;
}
/* proportional edit exception... */
if((mode & 1) && tottrans) {
for(eve= em->verts.first; eve; eve= eve->next) {
if(eve->h==0) {
eve->f1 |= 2;
proptrans++;
}
}
if(proptrans>tottrans) tottrans= proptrans;
}
/* and now make transverts */
if(tottrans) {
tv=transvmain= MEM_callocN(tottrans*sizeof(TransVert), "maketransverts");
for(eve= em->verts.first; eve; eve= eve->next) {
if(eve->f1) {
VECCOPY(tv->oldloc, eve->co);
tv->loc= eve->co;
if(eve->no[0]!=0.0 || eve->no[1]!=0.0 ||eve->no[2]!=0.0)
tv->nor= eve->no; // note this is a hackish signal (ton)
tv->flag= eve->f1 & SELECT;
tv++;
}
}
}
}
else if (obedit->type==OB_ARMATURE){
bArmature *arm= obedit->data;
int totmalloc= BLI_countlist(arm->edbo);
tv=transvmain= MEM_callocN(totmalloc*sizeof(TransVert), "maketransverts armature");
for (ebo= arm->edbo->first; ebo; ebo=ebo->next){
if(ebo->layer & arm->layer) {
short tipsel= (ebo->flag & BONE_TIPSEL);
short rootsel= (ebo->flag & BONE_ROOTSEL);
short rootok= (!(ebo->parent && (ebo->flag & BONE_CONNECTED) && ebo->parent->flag & BONE_TIPSEL));
if ((tipsel && rootsel) || (rootsel)) {
/* Don't add the tip (unless mode & 2, for getting all joints),
* otherwise we get zero-length bones as tips will snap to the same
* location as heads.
*/
if (rootok) {
VECCOPY (tv->oldloc, ebo->head);
tv->loc= ebo->head;
tv->nor= NULL;
tv->flag= 1;
tv++;
tottrans++;
}
if ((mode & 2) && (tipsel)) {
VECCOPY (tv->oldloc, ebo->tail);
tv->loc= ebo->tail;
tv->nor= NULL;
tv->flag= 1;
tv++;
tottrans++;
}
}
else if (tipsel) {
VECCOPY (tv->oldloc, ebo->tail);
tv->loc= ebo->tail;
tv->nor= NULL;
tv->flag= 1;
tv++;
tottrans++;
}
}
}
}
else if (ELEM(obedit->type, OB_CURVE, OB_SURF)) {
Curve *cu= obedit->data;
int totmalloc= 0;
for(nu= cu->editnurb->first; nu; nu= nu->next) {
if(nu->type == CU_BEZIER)
totmalloc += 3*nu->pntsu;
else
totmalloc += nu->pntsu*nu->pntsv;
}
tv=transvmain= MEM_callocN(totmalloc*sizeof(TransVert), "maketransverts curve");
nu= cu->editnurb->first;
while(nu) {
if(nu->type == CU_BEZIER) {
a= nu->pntsu;
bezt= nu->bezt;
while(a--) {
if(bezt->hide==0) {
if((mode & 1) || (bezt->f1 & SELECT)) {
VECCOPY(tv->oldloc, bezt->vec[0]);
tv->loc= bezt->vec[0];
tv->flag= bezt->f1 & SELECT;
tv++;
tottrans++;
}
if((mode & 1) || (bezt->f2 & SELECT)) {
VECCOPY(tv->oldloc, bezt->vec[1]);
tv->loc= bezt->vec[1];
tv->val= &(bezt->alfa);
tv->oldval= bezt->alfa;
tv->flag= bezt->f2 & SELECT;
tv++;
tottrans++;
}
if((mode & 1) || (bezt->f3 & SELECT)) {
VECCOPY(tv->oldloc, bezt->vec[2]);
tv->loc= bezt->vec[2];
tv->flag= bezt->f3 & SELECT;
tv++;
tottrans++;
}
}
bezt++;
}
}
else {
a= nu->pntsu*nu->pntsv;
bp= nu->bp;
while(a--) {
if(bp->hide==0) {
if((mode & 1) || (bp->f1 & SELECT)) {
VECCOPY(tv->oldloc, bp->vec);
tv->loc= bp->vec;
tv->val= &(bp->alfa);
tv->oldval= bp->alfa;
tv->flag= bp->f1 & SELECT;
tv++;
tottrans++;
}
}
bp++;
}
}
nu= nu->next;
}
}
else if(obedit->type==OB_MBALL) {
MetaBall *mb= obedit->data;
int totmalloc= BLI_countlist(mb->editelems);
tv=transvmain= MEM_callocN(totmalloc*sizeof(TransVert), "maketransverts mball");
ml= mb->editelems->first;
while(ml) {
if(ml->flag & SELECT) {
tv->loc= &ml->x;
VECCOPY(tv->oldloc, tv->loc);
tv->val= &(ml->rad);
tv->oldval= ml->rad;
tv->flag= 1;
tv++;
tottrans++;
}
ml= ml->next;
}
}
else if(obedit->type==OB_LATTICE) {
Lattice *lt= obedit->data;
bp= lt->editlatt->def;
a= lt->editlatt->pntsu*lt->editlatt->pntsv*lt->editlatt->pntsw;
tv=transvmain= MEM_callocN(a*sizeof(TransVert), "maketransverts curve");
while(a--) {
if((mode & 1) || (bp->f1 & SELECT)) {
if(bp->hide==0) {
VECCOPY(tv->oldloc, bp->vec);
tv->loc= bp->vec;
tv->flag= bp->f1 & SELECT;
tv++;
tottrans++;
}
}
bp++;
}
}
/* cent etc */
tv= transvmain;
total= 0.0;
for(a=0; a<tottrans; a++, tv++) {
if(tv->flag & SELECT) {
centroid[0]+= tv->oldloc[0];
centroid[1]+= tv->oldloc[1];
centroid[2]+= tv->oldloc[2];
total+= 1.0;
DO_MINMAX(tv->oldloc, min, max);
}
}
if(total!=0.0) {
centroid[0]/= total;
centroid[1]/= total;
centroid[2]/= total;
}
center[0]= (min[0]+max[0])/2.0;
center[1]= (min[1]+max[1])/2.0;
center[2]= (min[2]+max[2])/2.0;
}
/**
* Iterates over ALL objects in the scene and all of its sets, including
* making all duplis(not only metas). Copies metas to mainb array.
* Computes bounding boxes for building BVH. */
static void init_meta(EvaluationContext *eval_ctx, PROCESS *process, Scene *scene, Object *ob)
{
Scene *sce_iter = scene;
Base *base;
Object *bob;
MetaBall *mb;
const MetaElem *ml;
float obinv[4][4], obmat[4][4];
unsigned int i;
int obnr, zero_size = 0;
char obname[MAX_ID_NAME];
SceneBaseIter iter;
copy_m4_m4(obmat, ob->obmat); /* to cope with duplicators from BKE_scene_base_iter_next */
invert_m4_m4(obinv, ob->obmat);
BLI_split_name_num(obname, &obnr, ob->id.name + 2, '.');
/* make main array */
BKE_scene_base_iter_next(eval_ctx, &iter, &sce_iter, 0, NULL, NULL);
while (BKE_scene_base_iter_next(eval_ctx, &iter, &sce_iter, 1, &base, &bob)) {
if (bob->type == OB_MBALL) {
zero_size = 0;
ml = NULL;
if (bob == ob && (base->flag & OB_FROMDUPLI) == 0) {
mb = ob->data;
if (mb->editelems) ml = mb->editelems->first;
else ml = mb->elems.first;
}
else {
char name[MAX_ID_NAME];
int nr;
BLI_split_name_num(name, &nr, bob->id.name + 2, '.');
if (STREQ(obname, name)) {
mb = bob->data;
if (mb->editelems) ml = mb->editelems->first;
else ml = mb->elems.first;
}
}
/* when metaball object has zero scale, then MetaElem to this MetaBall
* will not be put to mainb array */
if (has_zero_axis_m4(bob->obmat)) {
zero_size = 1;
}
else if (bob->parent) {
struct Object *pob = bob->parent;
while (pob) {
if (has_zero_axis_m4(pob->obmat)) {
zero_size = 1;
break;
}
pob = pob->parent;
}
}
if (zero_size) {
while (ml) {
ml = ml->next;
}
}
else {
while (ml) {
if (!(ml->flag & MB_HIDE)) {
float pos[4][4], rot[4][4];
float expx, expy, expz;
float tempmin[3], tempmax[3];
MetaElem *new_ml;
/* make a copy because of duplicates */
new_ml = BLI_memarena_alloc(process->pgn_elements, sizeof(MetaElem));
*(new_ml) = *ml;
new_ml->bb = BLI_memarena_alloc(process->pgn_elements, sizeof(BoundBox));
new_ml->mat = BLI_memarena_alloc(process->pgn_elements, 4 * 4 * sizeof(float));
new_ml->imat = BLI_memarena_alloc(process->pgn_elements, 4 * 4 * sizeof(float));
/* too big stiffness seems only ugly due to linear interpolation
* no need to have possibility for too big stiffness */
if (ml->s > 10.0f) new_ml->s = 10.0f;
else new_ml->s = ml->s;
/* if metaball is negative, set stiffness negative */
if (new_ml->flag & MB_NEGATIVE) new_ml->s = -new_ml->s;
/* Translation of MetaElem */
unit_m4(pos);
pos[3][0] = ml->x;
pos[3][1] = ml->y;
pos[3][2] = ml->z;
/* Rotation of MetaElem is stored in quat */
quat_to_mat4(rot, ml->quat);
/* basis object space -> world -> ml object space -> position -> rotation -> ml local space */
mul_m4_series((float(*)[4])new_ml->mat, obinv, bob->obmat, pos, rot);
/* ml local space -> basis object space */
invert_m4_m4((float(*)[4])new_ml->imat, (float(*)[4])new_ml->mat);
/* rad2 is inverse of squared radius */
new_ml->rad2 = 1 / (ml->rad * ml->rad);
/* initial dimensions = radius */
expx = ml->rad;
expy = ml->rad;
expz = ml->rad;
switch (ml->type) {
case MB_BALL:
break;
case MB_CUBE: /* cube is "expanded" by expz, expy and expx */
expz += ml->expz;
/* fall through */
case MB_PLANE: /* plane is "expanded" by expy and expx */
expy += ml->expy;
/* fall through */
case MB_TUBE: /* tube is "expanded" by expx */
expx += ml->expx;
break;
case MB_ELIPSOID: /* ellipsoid is "stretched" by exp* */
expx *= ml->expx;
expy *= ml->expy;
expz *= ml->expz;
break;
}
/* untransformed Bounding Box of MetaElem */
/* TODO, its possible the elem type has been changed and the exp* values can use a fallback */
copy_v3_fl3(new_ml->bb->vec[0], -expx, -expy, -expz); /* 0 */
copy_v3_fl3(new_ml->bb->vec[1], +expx, -expy, -expz); /* 1 */
copy_v3_fl3(new_ml->bb->vec[2], +expx, +expy, -expz); /* 2 */
copy_v3_fl3(new_ml->bb->vec[3], -expx, +expy, -expz); /* 3 */
copy_v3_fl3(new_ml->bb->vec[4], -expx, -expy, +expz); /* 4 */
copy_v3_fl3(new_ml->bb->vec[5], +expx, -expy, +expz); /* 5 */
copy_v3_fl3(new_ml->bb->vec[6], +expx, +expy, +expz); /* 6 */
copy_v3_fl3(new_ml->bb->vec[7], -expx, +expy, +expz); /* 7 */
/* transformation of Metalem bb */
for (i = 0; i < 8; i++)
mul_m4_v3((float(*)[4])new_ml->mat, new_ml->bb->vec[i]);
/* find max and min of transformed bb */
INIT_MINMAX(tempmin, tempmax);
for (i = 0; i < 8; i++) {
DO_MINMAX(new_ml->bb->vec[i], tempmin, tempmax);
}
/* set only point 0 and 6 - AABB of Metaelem */
copy_v3_v3(new_ml->bb->vec[0], tempmin);
copy_v3_v3(new_ml->bb->vec[6], tempmax);
/* add new_ml to mainb[] */
if (UNLIKELY(process->totelem == process->mem)) {
process->mem = process->mem * 2 + 10;
process->mainb = MEM_reallocN(process->mainb, sizeof(MetaElem *) * process->mem);
}
process->mainb[process->totelem++] = new_ml;
}
ml = ml->next;
}
}
}
}
/* compute AABB of all Metaelems */
if (process->totelem > 0) {
copy_v3_v3(process->allbb.min, process->mainb[0]->bb->vec[0]);
copy_v3_v3(process->allbb.max, process->mainb[0]->bb->vec[6]);
for (i = 1; i < process->totelem; i++)
make_box_union(process->mainb[i]->bb, &process->allbb, &process->allbb);
}
}
void curve_deform_verts(Scene *scene, Object *cuOb, Object *target, DerivedMesh *dm, float (*vertexCos)[3], int numVerts, char *vgroup, short defaxis)
{
Curve *cu;
int a, flag;
CurveDeform cd;
int use_vgroups;
if(cuOb->type != OB_CURVE)
return;
cu = cuOb->data;
flag = cu->flag;
cu->flag |= (CU_PATH|CU_FOLLOW); // needed for path & bevlist
init_curve_deform(cuOb, target, &cd, (cu->flag & CU_STRETCH)==0);
/* dummy bounds, keep if CU_DEFORM_BOUNDS_OFF is set */
if(defaxis < 3) {
cd.dmin[0]= cd.dmin[1]= cd.dmin[2]= 0.0f;
cd.dmax[0]= cd.dmax[1]= cd.dmax[2]= 1.0f;
}
else {
/* negative, these bounds give a good rest position */
cd.dmin[0]= cd.dmin[1]= cd.dmin[2]= -1.0f;
cd.dmax[0]= cd.dmax[1]= cd.dmax[2]= 0.0f;
}
/* check whether to use vertex groups (only possible if target is a Mesh)
* we want either a Mesh with no derived data, or derived data with
* deformverts
*/
if(target && target->type==OB_MESH) {
/* if there's derived data without deformverts, don't use vgroups */
if(dm && !dm->getVertData(dm, 0, CD_MDEFORMVERT))
use_vgroups = 0;
else
use_vgroups = 1;
} else
use_vgroups = 0;
if(vgroup && vgroup[0] && use_vgroups) {
Mesh *me= target->data;
int index= defgroup_name_index(target, vgroup);
if(index != -1 && (me->dvert || dm)) {
MDeformVert *dvert = me->dvert;
float vec[3];
float weight;
if(cu->flag & CU_DEFORM_BOUNDS_OFF) {
/* dummy bounds */
cd.dmin[0]= cd.dmin[1]= cd.dmin[2]= 0.0f;
cd.dmax[0]= cd.dmax[1]= cd.dmax[2]= 1.0f;
dvert = me->dvert;
for(a = 0; a < numVerts; a++, dvert++) {
if(dm) dvert = dm->getVertData(dm, a, CD_MDEFORMVERT);
weight= defvert_find_weight(dvert, index);
if(weight > 0.0f) {
mul_m4_v3(cd.curvespace, vertexCos[a]);
copy_v3_v3(vec, vertexCos[a]);
calc_curve_deform(scene, cuOb, vec, defaxis, &cd, NULL);
interp_v3_v3v3(vertexCos[a], vertexCos[a], vec, weight);
mul_m4_v3(cd.objectspace, vertexCos[a]);
}
}
}
else {
/* set mesh min/max bounds */
INIT_MINMAX(cd.dmin, cd.dmax);
for(a = 0; a < numVerts; a++, dvert++) {
if(dm) dvert = dm->getVertData(dm, a, CD_MDEFORMVERT);
if(defvert_find_weight(dvert, index) > 0.0f) {
mul_m4_v3(cd.curvespace, vertexCos[a]);
DO_MINMAX(vertexCos[a], cd.dmin, cd.dmax);
}
}
dvert = me->dvert;
for(a = 0; a < numVerts; a++, dvert++) {
if(dm) dvert = dm->getVertData(dm, a, CD_MDEFORMVERT);
weight= defvert_find_weight(dvert, index);
if(weight > 0.0f) {
copy_v3_v3(vec, vertexCos[a]);
calc_curve_deform(scene, cuOb, vec, defaxis, &cd, NULL);
interp_v3_v3v3(vertexCos[a], vertexCos[a], vec, weight);
mul_m4_v3(cd.objectspace, vertexCos[a]);
}
}
}
}
}
else {
if(cu->flag & CU_DEFORM_BOUNDS_OFF) {
for(a = 0; a < numVerts; a++) {
mul_m4_v3(cd.curvespace, vertexCos[a]);
calc_curve_deform(scene, cuOb, vertexCos[a], defaxis, &cd, NULL);
mul_m4_v3(cd.objectspace, vertexCos[a]);
}
}
else {
/* set mesh min max bounds */
INIT_MINMAX(cd.dmin, cd.dmax);
for(a = 0; a < numVerts; a++) {
mul_m4_v3(cd.curvespace, vertexCos[a]);
DO_MINMAX(vertexCos[a], cd.dmin, cd.dmax);
}
for(a = 0; a < numVerts; a++) {
calc_curve_deform(scene, cuOb, vertexCos[a], defaxis, &cd, NULL);
mul_m4_v3(cd.objectspace, vertexCos[a]);
}
}
}
cu->flag = flag;
}
