static void deformVerts(ModifierData *md, Object *ob, DerivedMesh *derivedData, float (*vertexCos)[3], int numVerts, ModifierApplyFlag UNUSED(flag)) { LatticeModifierData *lmd = (LatticeModifierData *) md; modifier_vgroup_cache(md, vertexCos); /* if next modifier needs original vertices */ lattice_deform_verts(lmd->object, ob, derivedData, vertexCos, numVerts, lmd->name, lmd->strength); }
int object_deform_mball(Object *ob, ListBase *dispbase) { if(ob->parent && ob->parent->type==OB_LATTICE && ob->partype==PARSKEL) { DispList *dl; for (dl=dispbase->first; dl; dl=dl->next) { lattice_deform_verts(ob->parent, ob, NULL, (float(*)[3]) dl->verts, dl->nr, NULL); } return 1; } else { return 0; } }
void BKE_lattice_resize(Lattice *lt, int uNew, int vNew, int wNew, Object *ltOb) { BPoint *bp; int i, u, v, w; float fu, fv, fw, uc, vc, wc, du = 0.0, dv = 0.0, dw = 0.0; float *co, (*vertexCos)[3] = NULL; /* vertex weight groups are just freed all for now */ if (lt->dvert) { free_dverts(lt->dvert, lt->pntsu * lt->pntsv * lt->pntsw); lt->dvert = NULL; } while (uNew * vNew * wNew > 32000) { if (uNew >= vNew && uNew >= wNew) uNew--; else if (vNew >= uNew && vNew >= wNew) vNew--; else wNew--; } vertexCos = MEM_mallocN(sizeof(*vertexCos) * uNew * vNew * wNew, "tmp_vcos"); calc_lat_fudu(lt->flag, uNew, &fu, &du); calc_lat_fudu(lt->flag, vNew, &fv, &dv); calc_lat_fudu(lt->flag, wNew, &fw, &dw); /* If old size is different then resolution changed in interface, * try to do clever reinit of points. Pretty simply idea, we just * deform new verts by old lattice, but scaling them to match old * size first. */ if (ltOb) { if (uNew != 1 && lt->pntsu != 1) { fu = lt->fu; du = (lt->pntsu - 1) * lt->du / (uNew - 1); } if (vNew != 1 && lt->pntsv != 1) { fv = lt->fv; dv = (lt->pntsv - 1) * lt->dv / (vNew - 1); } if (wNew != 1 && lt->pntsw != 1) { fw = lt->fw; dw = (lt->pntsw - 1) * lt->dw / (wNew - 1); } } co = vertexCos[0]; for (w = 0, wc = fw; w < wNew; w++, wc += dw) { for (v = 0, vc = fv; v < vNew; v++, vc += dv) { for (u = 0, uc = fu; u < uNew; u++, co += 3, uc += du) { co[0] = uc; co[1] = vc; co[2] = wc; } } } if (ltOb) { float mat[4][4]; int typeu = lt->typeu, typev = lt->typev, typew = lt->typew; /* works best if we force to linear type (endpoints match) */ lt->typeu = lt->typev = lt->typew = KEY_LINEAR; /* prevent using deformed locations */ BKE_displist_free(<Ob->disp); copy_m4_m4(mat, ltOb->obmat); unit_m4(ltOb->obmat); lattice_deform_verts(ltOb, NULL, NULL, vertexCos, uNew * vNew * wNew, NULL, 1.0f); copy_m4_m4(ltOb->obmat, mat); lt->typeu = typeu; lt->typev = typev; lt->typew = typew; } lt->fu = fu; lt->fv = fv; lt->fw = fw; lt->du = du; lt->dv = dv; lt->dw = dw; lt->pntsu = uNew; lt->pntsv = vNew; lt->pntsw = wNew; MEM_freeN(lt->def); lt->def = MEM_callocN(lt->pntsu * lt->pntsv * lt->pntsw * sizeof(BPoint), "lattice bp"); bp = lt->def; for (i = 0; i < lt->pntsu * lt->pntsv * lt->pntsw; i++, bp++) { copy_v3_v3(bp->vec, vertexCos[i]); } MEM_freeN(vertexCos); }