Geomview For Windows?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Bug with normals in Geomview?
Hmm, not sure what's best to do about this. Geomview does need to compute normal vectors when it draws an object, and the computed normals are written out when you save it. The normals usually have reasonable values, though guess in some circumstances the normal computation can yield NaN's (though now that I try to produce a failing case, I can't: the code for OFF, QUAD, and MESH objects looks bullet-proof as long as all vertices are finite). Some possible ways to work around this: - Supply vertex normal vectors along with the OFF files you create (i.e. write CNOFF files rather than COFF files). If you supply them, geomview won't recompute them. Or, ... - If you have trouble with a file, run it through a "sed" script like sed -e s/NaN/0/ test.oogl > newtest.oogl The normal vectors are still meaningless, but at least the file is readable. If you find a case that does produce NaN's for normals, please send it along.
Home | Overview | FAQ | Documentation | Support | Download | Mailing List
Windows? | Development | Bug Reporting | Contributing | Contact Us | Sponsors
site hosted by