void DumpFaceInfo(const Ptex::FaceInfo& f)
{
Ptex::Res res = f.res;
std::cout << " res: " << int(res.ulog2) << ' ' << int(res.vlog2)
<< " (" << res.u() << " x " << res.v() << ")"
<< " adjface: "
<< f.adjfaces[0] << ' '
<< f.adjfaces[1] << ' '
<< f.adjfaces[2] << ' '
<< f.adjfaces[3]
<< " adjedge: "
<< f.adjedge(0) << ' '
<< f.adjedge(1) << ' '
<< f.adjedge(2) << ' '
<< f.adjedge(3)
<< " flags:";
// output flag names
if (f.flags == 0) std::cout << " (none)";
else {
if (f.isSubface()) std::cout << " subface";
if (f.isConstant()) std::cout << " constant";
if (f.isNeighborhoodConstant()) std::cout << " nbconstant";
if (f.hasEdits()) std::cout << " hasedits";
}
std::cout << std::endl;
}
void PtexTriangleFilter::applyAcrossEdge(PtexTriangleKernel& k,
const Ptex::FaceInfo& f, int eid)
{
int afid = f.adjface(eid), aeid = f.adjedge(eid);
const Ptex::FaceInfo& af = _tx->getFaceInfo(afid);
k.reorient(eid, aeid);
splitAndApply(k, afid, af);
}
void PtexSeparableFilter::applyAcrossEdge(PtexSeparableKernel& k,
int faceid, const Ptex::FaceInfo& f, int eid)
{
int afid = f.adjface(eid), aeid = f.adjedge(eid);
const Ptex::FaceInfo* af = &_tx->getFaceInfo(afid);
int rot = eid - aeid + 2;
// adjust uv coord and res for face/subface boundary
bool fIsSubface = f.isSubface(), afIsSubface = af->isSubface();
if (fIsSubface != afIsSubface) {
if (afIsSubface) {
// main face to subface transition
// adjust res and offset uv coord for primary subface
bool primary = k.adjustMainToSubface(eid);
if (!primary) {
// advance ajacent face and edge id to secondary subface
int neid = (aeid + 3) % 4;
afid = af->adjface(neid);
aeid = af->adjedge(neid);
af = &_tx->getFaceInfo(afid);
rot += neid - aeid + 2;
}
}
else {
// subface to main face transition
// Note: the transform depends on which subface the kernel is
// coming from. The "primary" subface is the one the main
// face is pointing at. The secondary subface adjustment
// happens to be the same as for the primary subface for the
// next edge, so the cases can be combined.
bool primary = (af->adjface(aeid) == faceid);
k.adjustSubfaceToMain(eid - primary);
}
}
// rotate and apply (resplit if going to a subface)
k.rotate(rot);
if (afIsSubface) splitAndApply(k, afid, *af);
else apply(k, afid, *af);
}