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Third-Party Notices

FundaCAD incorporates the following third-party components. This file satisfies the attribution and source-availability requirements of their licenses. Full license texts are bundled under LICENSES/ in distributed builds.

No dependency is under the GPL or AGPL; nothing here requires FundaCAD's own source to be published. The copyleft components below are weak-copyleft (LGPL) and are used in a license-compatible way, which permits distributing FundaCAD under its own terms.

Geometry kernel

  • Open CASCADE Technology (OCCT) 7.8.1, LGPL-2.1 with the Open CASCADE Exception. Source: https://github.com/Open-Cascade-SAS/OCCT (tag V7_8_1), carried by the occt-sys crate. Compiled from source and linked statically into the application. FundaCAD's complete source, including the build that links OCCT, is public, so users may rebuild it against a compatible modified OCCT. The Open CASCADE Exception additionally permits incorporating OCCT header material into the application.
  • opencascade-rs / opencascade-sys / occt-sys (vendored fork, third_party/opencascade-rs/), LGPL-2.1. Upstream: https://github.com/bschwind/opencascade-rs.

2D constraint solver

Permissively licensed components

  • three.js, MIT, https://github.com/mrdoob/three.js
  • camera-controls, MIT, https://github.com/yomotsu/camera-controls
  • three-gpu-pathtracer (Path traced), MIT, https://github.com/gkjohnson/three-gpu-pathtracer
  • oidn-web (the Path traced denoise), MIT, https://github.com/pissang/oidn-web, with @petamoriken/float16, MIT
  • Open Image Denoise weights (src/viewport/pathtrace/weights, rt_hdr_calb_cnrm_small and rt_hdr_calb_cnrm_large), Apache-2.0, https://github.com/RenderKit/oidn-weights
  • Tauri and official plugins (tauri, tauri-plugin-fs, tauri-plugin-dialog, @tauri-apps/*), MIT OR Apache-2.0, https://github.com/tauri-apps/tauri
  • hidapi (Rust crate), MIT, https://github.com/ruabmbua/hidapi-rs
  • threemf (Rust crate), 0BSD, https://crates.io/crates/threemf
  • wasmtime (the plugin host), Apache-2.0 WITH LLVM-exception, https://github.com/bytecodealliance/wasmtime
  • serde / serde_json / glam / tungstenite, MIT OR Apache-2.0
  • faer (the stress analysis's sparse linear algebra), MIT, https://codeberg.org/sarah-quinones/faer, with its numeric crates faer-traits, gemm, gemm-common, gemm-f32, gemm-f64, gemm-c32, gemm-c64, nano-gemm (and its -core, -codegen, -f32, -f64, -c32, -c64 crates), private-gemm-x86, pulp, pulp-wasm-simd-flag, dyn-stack, dyn-stack-macros, qd, reborrow, equator and equator-macro, all MIT, https://github.com/sarah-quinones; num-complex, generativity, seq-macro, paste, num_cpus and enum-as-inner, MIT OR Apache-2.0; libm, raw-cpuid, interpol and sysctl, MIT; defer, MIT OR Apache-2.0; bytemuck, Zlib OR Apache-2.0 OR MIT; byteorder, walkdir and same-file, Unlicense OR MIT
  • ufbx (the FBX reader, Rust crate with the bundled ufbx.c), MIT OR Unlicense, https://github.com/ufbx/ufbx-rust
  • cadmpeg-codec-rhino (the Rhino .3dm reader) with cadmpeg-ir, cadmpeg-core and cadmpeg-container, Apache-2.0, https://github.com/cadmpeg/cadmpeg; zstd, zstd-safe and zstd-sys, MIT OR Apache-2.0, bundling the zstd library, BSD-3-Clause, https://github.com/facebook/zstd; zip, serde-value, ordered-float, MIT; roxmltree, typed-path, sha1, sha2, digest, hybrid-array, const-oid, block-buffer, crypto-common, jobserver and pkg-config, MIT OR Apache-2.0
  • ifc-lite-core, ifc-lite-geometry and ifc-lite-processing (the IFC reader), MPL-2.0, source at https://github.com/LTplus-AG/ifc-lite, and the test model tests/fixtures/ifc_revit_wall_openings.ifc, its issue_098_wall_V5C.ifc with the exporter comment and a user id removed, MPL-2.0; nalgebra, simba and approx, Apache-2.0; earcutr, ISC; geometry-predicates, i_float, i_key_sort, i_shape, i_tree and nom, MIT; i_overlay, glam, bnum, fast-float2, jpeg-decoder, png, num-bigint, num-integer, num-rational, lexical-core (and its -parse-float, -parse-integer, -util, -write-float, -write-integer crates), minimal-lexical, matrixmultiply and rawpointer, MIT OR Apache-2.0; wide and safe_arch, Zlib OR Apache-2.0 OR MIT

Written offer (LGPL source availability)

For the LGPL components above (OCCT, opencascade-rs, PlaneGCS), the corresponding source code is available at the URLs listed. For any distributed binary build, the complete corresponding source of these libraries is also available from the project for a period of at least three (3) years upon request. FundaCAD's own source, which links OCCT statically, is public, so users may rebuild it with compatible modified versions of these libraries.