> C has no pattern for breaking out of multiple for loops at the same time. Other languages like Java and JavaScript introduced "break label;" to handle this edge case. goto is perfectly acceptable to break out of multiple loops.

Yeah, that's not what it does. The code looks like this:

    if (pgeom->Intersect(pentlist[i]->m_parts[j].pPhysGeomProxy->pGeom, gwd,gwd+1, &ip, pcontacts)) {
            got_unproj:
            if (dirUnproj.len2()==0) dirUnproj = pcontacts[0].dir;
            t = pcontacts[0].t;     // lock should be released after reading t
            return t;
    }       
    for(int ipart=1;ipart<m_nParts;ipart++) if (m_parts[ipart].flagsCollider & pentlist[i]->m_parts[j].flags) {
            gwd[2].R = Matrix33(qrot); 
            gwd[2].offset = pos + qrot*m_parts[ipart].pos;
            gwd[2].scale = m_parts[ipart].scale;
            gwd[2].v = -dirUnproj;
            if (m_parts[ipart].pPhysGeomProxy->pGeom->Intersect(pentlist[i]->m_parts[j].pPhysGeomProxy->pGeom, gwd+2,gwd+1, &ip, pcontacts))
                    goto got_unproj;
            }
    }

Notice (a) the if statement on the same line as the for loop, and (b) the fact that the goto jumps out of a conditional inside a for loop inside of a conditional into a conditional just before the for loop.

EDIT: Just realised the poster is referring to a different function.

IMO this one is more horrifying.