Changes in version 0.1.2 (2026-05-11)                  

  - cgv_layout_fr() — Fruchterman-Reingold layout in 2D/3D (pure R).
  - cgv_layout_fr_bh() — Barnes-Hut FR (O(n log n)) in C for large
    graphs.
  - cgv_camera_mode() — switch camera mode (fly / orbit / arcball).
  - cgv_fly_path() — animate camera along waypoints (Catmull-Rom
    spline).
  - cgv_record_start() / cgv_record_stop() — video recording via ffmpeg
    pipe.
  - cgv_is_stub_build() — TRUE when the package was installed without
    Vulkan / GLFW (stub build). Native APIs raise a clear error in that
    case.
  - New configure flags --with-vulkan / --without-vulkan to force or
    skip the native rendering build (mirrors ggmlR's flag style).
  - macOS support: configure auto-detects Darwin, sets OS_MACOS=1, picks
    Vulkan from VULKAN_SDK/macOS/, VULKAN_SDK/, or Homebrew
    (/opt/homebrew/lib, /usr/local/lib), and applies
    -mmacosx-version-min=12.0.

                        Changes in version 0.1.1                        

  - cgv_viewer() gains offscreen argument for headless mode.

                        Changes in version 0.1.0                        

Initial development release.

  - cgv_viewer(), cgv_close() — viewer creation and destruction.
  - cgv_camera(), cgv_fly_to() — camera positioning and animation.
  - cgv_set_graph() — load nodes, edges and 3D positions.
  - cgv_set_visibility() — BFS visibility-zone control.
  - cgv_highlight_path(), cgv_clear_path() — path highlighting.
  - cgv_background() — background color.
  - cgv_run() — render loop.