Lagrange Release v6.41.0

Dependencies

• 📌 Update Eigen to 3.4.1
• 📌 Update ufbx to v0.21.2
• 📌 Downgrade Entt to v3.15.0 due to type matching issues
• 📌 Switch pcg-cpp repo source with WinARM support
• 📌 Update OpenVDB to 13.0.0

Infrastructure

• 🐛 Numpy 2.4.0 compatibility fix
• 🏗️ New trigger to build python wheel for PRs
• 🏗️ Fix doc build failures
• 🏗️ Auto extract version from git tags

Scene and IO Modules

• 🎨 Add scene_to_meshes and simple_scene_to_meshes
• 🎨 Add option to triangulate mesh during saving
• 🎨 Allow saving scenes with invalid URI to OBJ with warnings
• 🐛 Fix target axis and units when loading FBX models
• 🐛 Load empty images when failed to load FBX textures
• 🐛 Proper attribute usage for tangent/bitangent attributes from FBX

Core Module

• 🎨 Faster per-vertex component computation (~23% faster)

BVH Module

• ✨ Add remove_interior_shells support for removing non-intersecting interior shells

TexProc Module

• 🎨 New graphical demo for texture stitching

Subdiv Module

• 🎨 Add compute_sharpness helper function

Volume Module

• 🎨 mesh_to_volume updates:
  • New Unsigned signing mode
  • Update winding number signing
  • Bug fix in quad-to-tri tessellation
• 📝 Update example demos
  • New voxelize_gui and grid_viewer examples
  • New register_grid.h utility for visualizing VDB grids with Polyscope in examples
  • Rename voxelize_mesh -> voxelize_cli and support additional input/output files
• 🎨 Add NanoVDB support in demos/Python bindings
• ✨ New Grid class wrapping OpenVDB grids (CPU only)
  • .to_mesh() and .from_mesh() for converting between mesh <-> SDF grid (float or double)
  • .save(), .to_buffer() and .load() for serialization (supports NanoVDB and compression)
  • Grid properties: .bbox_index, .bbox_world, .num_active_voxels
  • .world_to_index() and .index_to_world() to apply coordinate transforms
  • .sample_trilinear_*() to sample points in parallel
  • .resample(), .densify(), .redistance() and .offset_in_place() utility methods