// return true iff no segment in env0 intersects any segment in env1
bool environmentIntersectionTest(const Environment& env0, const Environment& env1) const
{
for (const auto & i : env0)
for (const auto & j : env1)
if (intersectionTest(i, j))
return false;
return true;
}
// return true iff env does *not* include a pair of intersecting segments
bool selfIntersectionTest(const Environment& env) const
{
for (unsigned int i = 0; i < env.size(); ++i)
for (unsigned int j = i + 1; j < env.size(); ++j)
if (intersectionTest(env[i], env[j]))
return false;
return true;
}
HitInfo Sphere::intersectsRay(const glm::vec3 &ori, const glm::vec3 &dir) {
float t = 0.0;
if (intersectionTest(ori, dir, t)) {
HitInfo info;
info.x = t;
info.objIdx = uid;
info.p = ori + t * dir;
const float bias = 1e-4;
info.n = info.p * (1 + bias);
//info.t = ???
return info;
}
else {
return HitInfo::noHit();
}
}
