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mirror of https://github.com/Nexoniarz/Fry3DX.git synced 2026-11-03 04:24:26 +00:00
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Fuzz test (tests/fuzz_test.cpp): random shapes through random edits and combines, broken scene and model files; in check and CI. Fixed what it found: Manifold given repeated or non-finite points (crash; the BSP takes those now), a damaged file's non-finite numbers (now 0), extruding both sides of a plane (NaN)

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Nexoniarz 2026-10-21 08:38:39 +02:00
commit 9918d9a770
13 changed files with 294 additions and 6 deletions
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13
src/boolean.cpp
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@ -343,11 +343,18 @@ std::optional<Mesh> combineManifold(const Mesh& a, const Mesh& b, Combine op) {
manifold::MeshGL g;
g.numProp = 3;
g.vertProperties.reserve(m.verts.size() * 3);
for (const glm::vec3& v : m.verts) g.vertProperties.insert(g.vertProperties.end(), {v.x, v.y, v.z});
for (const glm::vec3& v : m.verts) {
if (!std::isfinite(v.x) || !std::isfinite(v.y) || !std::isfinite(v.z)) return std::nullopt; // (it can't take those)
g.vertProperties.insert(g.vertProperties.end(), {v.x, v.y, v.z});
}
for (size_t f = 0; f < m.faces.size(); ++f) {
if (m.faces[f].size() < 3) return std::nullopt; // (a line: not a solid)
const auto& fv = m.faces[f];
if (fv.size() < 3) return std::nullopt; // (a line: not a solid)
for (size_t i = 0; i < fv.size(); ++i) // (a point twice round a face, or one that isn't there: it can't take that either)
if (fv[i] < 0 || size_t(fv[i]) >= m.verts.size() || std::find(fv.begin() + long(i) + 1, fv.end(), fv[i]) != fv.end()) return std::nullopt;
for (const auto& t : triangulate(m, int(f)))
g.triVerts.insert(g.triVerts.end(), {uint32_t(t[0]), uint32_t(t[1]), uint32_t(t[2])}), g.faceID.push_back(firstFace + uint32_t(f));
if (t[0] == t[1] || t[1] == t[2] || t[0] == t[2]) return std::nullopt;
else g.triVerts.insert(g.triVerts.end(), {uint32_t(t[0]), uint32_t(t[1]), uint32_t(t[2])}), g.faceID.push_back(firstFace + uint32_t(f));
}
if (g.triVerts.empty()) return std::nullopt;
g.runOriginalID = {manifold::Manifold::ReserveIDs(1)}; // (so it keeps the faces given, not its own numbering)