Lagrange Release v6.48.0

Dependencies

• 📌 Update xatlas to fix a TSan issue.

Build & CI

• 🏗️ MSVC DLL exports: annotate public module APIs across nine modules.
• 🏗️ Test DLL exports in shared-lib CI CMake presets.
• 🏗️ Fix C++ build with legacy functions disabled.

Python Bindings

• 🏗️ Adopt nanobind 3 split mode. We now build one wheel per platform. The same wheel works on Python 3.10-3.14.
• 🏗️ Build Python bindings with legacy functions disabled (two-macro split):
  • Split LAGRANGE_ENABLE_LEGACY_FUNCTIONS / ..._HEADERS so the wheel excludes legacy code.
• 🐍 Add missing mesh_bbox / compute_uv_tile_list bindings; move corner_to_edge_mapping to legacy.

Core Module

• 🎨 Add load_lines option to control loading OBJ line elements: default true.
• 🐛 Guard against out-of-bound user input in compute_components, extract_submesh, compute_normal, and others.
• 📖 Fix out-of-date docs in the core module: ~30 stale Doxygen / docstring / TS type fixes.

Texproc Module

• 🎨 Improving texture compositing convergence.
  • Direct-solver option + combinatorial-Laplacian multigrid regularization, orthographic-camera depth-tolerance fix.

Volume Module

• 🎨 Add options to the grid_viewer CLI.
• 🎨 Add a smoothed mesh-gradient field SmoothedMeshGradientField
  • Winding-number SDF + Gaussian-filtered gradient.