Lagrange Release v6.42.0

Dependencies

• 📌 Update spdlog to 1.17.0
• 📌 Update gl3w to fix link issues on Linux
• 📌 Add support for Embree 4, now the default

Python

• 🚨 Rename Lagrange Python package to adobe-lagrange to improve compatibility with internal releases while avoiding PyPI collision
  • Before: uv pip install lagrange-open
  • After: uv pip install adobe-lagrange
  • Import name unchanged (import lagrange)
  • Redirection packages ensure transitions to the latest versions
• 🐛 Fix hierarchical logging in Python

Core Module

• 🎨 Broadcast constant value attributes in map_attribute
• 🐛 Fix issues with weld_indexed_attributes
• 🐛 Fix double-flip bug in facet reorientation for orient_outward

Scene and IO Modules

• ✨ Add Scene to SimpleScene conversion functions
• 🐛 Fix node indexing bug in save_gltf when using explicit root nodes
• 🐛 Skip non-triangle primitives in load_scene_gltf, load empty placeholder mesh
• 🐛 Fix FBX load issue with duplicate attribute names
• 🐛 Account for geometry transforms and scale inherit mode in load_fbx
• 🐛 Fix image size assert in load_gltf

Remeshing Module

• ✨ New remeshing_im module wrapping Instant Meshes

Polyddg Module

• ✨ Shape operator for discrete curvature computation

BVH Module

• ✨ Add mesh-to-mesh distance evaluation
  • New bvh::compute_mesh_distances for per-vertex distance
  • Add bvh::compute_hausdorff and bvh::compute_chamfer metrics
  • Python bindings available

Raycasting Module

• ✨ New RayCaster class for SurfaceMesh
  • Construction: add_mesh(), add_instance(), add_scene()
  • Modification: update_mesh(), update_vertices(), update_transform()
  • Support visibility, intersection and occlusion filters
  • Distance queries: closest_pointN(), closest_vertexN()
  • Ray queries: castN(), occludedN()
• Refactored projection functions to support SurfaceMesh:
  • Can project either vertex positions or attributes such as colors
  • project_closest_point(), project_closest_vertex(), project_directional()
• Python bindings available

TexProc Module

• ✨ Mesh with alpha mask to SDF conversion
• 🐛 Apply regularization consistently to LHS and RHS (filtering + stitching)

Miscellaneous

• 🏗️ Chainload WindowsToolchain for vcpkg on Windows
• 🐛 Support empty inputs in mesh subdivision
• 🎨 Unify index buffer in polyscope mesh viewer example
• 🎨 Expose grid background value in Python bindings
• 🎨 Update default rendering setting for large point clouds