Methodology: compare actual capabilities against Parasolid V35, ACIS R30, OCCT 7.8
Key findings:
- Feature coverage: VDE has ~90% of what Parasolid has
- Real gap: NOT features — it's testing (1K vs 50K tests), robustness (35yr bug fixes),
real-world validation (0 users vs thousands)
- Binaries: XT/SAT/JT binary formats missing
- Reliability: tangent/degenerate boolean cases untested
VDE advantages: Apache 2.0, modern C++17, zero deps, 76K compact, built-in CAM,
SDF+differentiable geometry, Chinese-first
Bottom line: VDE can write 90% of Parasolid's features, but cannot write
Parasolid's 35 years of bug fixes.
茂之钳
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