static void edge_normal_compare(EditEdge *eed, EditFace *efa1)
{
EditFace *efa2;
float cent1[3], cent2[3];
float inp;
efa2 = eed->tmp.f;
if(efa1==efa2) return;
inp= efa1->n[0]*efa2->n[0] + efa1->n[1]*efa2->n[1] + efa1->n[2]*efa2->n[2];
if(inp<0.999f && inp >-0.999f) eed->f2= 1;
if(efa1->v4) cent_quad_v3(cent1, efa1->v1->co, efa1->v2->co, efa1->v3->co, efa1->v4->co);
else cent_tri_v3(cent1, efa1->v1->co, efa1->v2->co, efa1->v3->co);
if(efa2->v4) cent_quad_v3(cent2, efa2->v1->co, efa2->v2->co, efa2->v3->co, efa2->v4->co);
else cent_tri_v3(cent2, efa2->v1->co, efa2->v2->co, efa2->v3->co);
sub_v3_v3v3(cent1, cent2, cent1);
normalize_v3(cent1);
inp= cent1[0]*efa1->n[0] + cent1[1]*efa1->n[1] + cent1[2]*efa1->n[2];
if(inp < -0.001f) eed->f1= 1;
}
static void occ_face(const OccFace *face, float co[3], float normal[3], float *area)
{
ObjectInstanceRen *obi;
VlakRen *vlr;
float v1[3], v2[3], v3[3], v4[3];
obi = &R.objectinstance[face->obi];
vlr = RE_findOrAddVlak(obi->obr, face->facenr);
if (co) {
if (vlr->v4)
mid_v3_v3v3(co, vlr->v1->co, vlr->v3->co);
else
cent_tri_v3(co, vlr->v1->co, vlr->v2->co, vlr->v3->co);
if (obi->flag & R_TRANSFORMED)
mul_m4_v3(obi->mat, co);
}
if (normal) {
normal[0] = -vlr->n[0];
normal[1] = -vlr->n[1];
normal[2] = -vlr->n[2];
if (obi->flag & R_TRANSFORMED)
mul_m3_v3(obi->nmat, normal);
}
if (area) {
copy_v3_v3(v1, vlr->v1->co);
copy_v3_v3(v2, vlr->v2->co);
copy_v3_v3(v3, vlr->v3->co);
if (vlr->v4) copy_v3_v3(v4, vlr->v4->co);
if (obi->flag & R_TRANSFORMED) {
mul_m4_v3(obi->mat, v1);
mul_m4_v3(obi->mat, v2);
mul_m4_v3(obi->mat, v3);
if (vlr->v4) mul_m4_v3(obi->mat, v4);
}
/* todo: correct area for instances */
if (vlr->v4)
*area = area_quad_v3(v1, v2, v3, v4);
else
*area = area_tri_v3(v1, v2, v3);
}
}
EditFace *addfacelist(EditMesh *em, EditVert *v1, EditVert *v2, EditVert *v3, EditVert *v4, EditFace *example, EditFace *exampleEdges)
{
EditFace *efa;
EditEdge *e1, *e2=0, *e3=0, *e4=0;
/* added sanity check... seems to happen for some tools, or for enter editmode for corrupted meshes */
if(v1==v4 || v2==v4 || v3==v4) v4= NULL;
/* add face to list and do the edges */
if(exampleEdges) {
e1= addedgelist(em, v1, v2, exampleEdges->e1);
e2= addedgelist(em, v2, v3, exampleEdges->e2);
if(v4) e3= addedgelist(em, v3, v4, exampleEdges->e3);
else e3= addedgelist(em, v3, v1, exampleEdges->e3);
if(v4) e4= addedgelist(em, v4, v1, exampleEdges->e4);
}
else {
e1= addedgelist(em, v1, v2, NULL);
e2= addedgelist(em, v2, v3, NULL);
if(v4) e3= addedgelist(em, v3, v4, NULL);
else e3= addedgelist(em, v3, v1, NULL);
if(v4) e4= addedgelist(em, v4, v1, NULL);
}
if(v1==v2 || v2==v3 || v1==v3) return NULL;
if(e2==0) return NULL;
efa= (EditFace *)callocface(em, sizeof(EditFace), 1);
efa->v1= v1;
efa->v2= v2;
efa->v3= v3;
efa->v4= v4;
efa->e1= e1;
efa->e2= e2;
efa->e3= e3;
efa->e4= e4;
if(example) {
efa->mat_nr= example->mat_nr;
efa->flag= example->flag;
CustomData_em_copy_data(&em->fdata, &em->fdata, example->data, &efa->data);
CustomData_em_validate_data(&em->fdata, efa->data, efa->v4 ? 4 : 3);
}
else {
efa->mat_nr= em->mat_nr;
CustomData_em_set_default(&em->fdata, &efa->data);
}
BLI_addtail(&em->faces, efa);
em->totface++;
if(efa->v4) {
normal_quad_v3( efa->n,efa->v1->co, efa->v2->co, efa->v3->co, efa->v4->co);
cent_quad_v3(efa->cent, efa->v1->co, efa->v2->co, efa->v3->co, efa->v4->co);
}
else {
normal_tri_v3( efa->n,efa->v1->co, efa->v2->co, efa->v3->co);
cent_tri_v3(efa->cent, efa->v1->co, efa->v2->co, efa->v3->co);
}
return efa;
}
