RUST_LOG |
desktop viewer |
Tracing filter for stderr (default warn; e.g. RUST_LOG=debug). The CLI ignores it; use --log-level there. |
WGPU_BACKEND |
desktop, CLI render |
Force a wgpu backend (gl, vulkan, metal) when the default is unavailable. See the Debugging Playbook. |
RAYON_NUM_THREADS |
all native crates |
Cap Rayon’s global thread pool. =1 pins parallel paths (e.g. orbital grid evaluation) to one worker for approximate serial-vs-parallel comparisons. |
ORBITRON_CONFIG |
CLI, desktop |
Path of the config.toml that OrbitronConfig::default_path resolves to, instead of the user’s configuration directory (an empty value counts as unset). The CLI test harness (common::orbitron()) points it at a path nothing creates, so tests get built-in defaults rather than the developer’s saved preferences. |
ORBITRON_CANONICAL_CACHE |
CLI, desktop |
Override the canonical-bundle cache directory. |
ORBITRON_CLI_PROGRESS |
CLI |
=0 disables progress bars (set automatically by --no-progress and --quiet). |
ORBITRON_CLI_QUIET |
CLI |
=1 suppresses the startup banner (set automatically by --quiet). |
ORBITRON_VASP_SKIP_VOLUMETRIC |
parsers |
Skip volumetric payloads in VASP output; faster loads when densities are not needed. |
ORBITRON_MSAA_SAMPLES |
desktop renderer |
Request an MSAA sample count (1, 2, 4, 8, or 16; clamped to a power of two and to what the adapter supports). |
ORBITRON_LIGHTING_PRESET |
desktop |
Apply a named lighting preset at startup (case-insensitive). |
ORBITRON_NO_SPECULAR |
desktop |
Zero both specular intensities for a matte look. |
ORBITRON_SYNC_LOAD |
desktop |
Load the startup file synchronously before first paint. |
ORBITRON_AUTOCLOSE_MS |
GUI smoke tests |
Auto-close the viewer after N milliseconds (CI-friendly). |
ORBITRON_TUI_AUTOCLOSE |
TUI smoke tests |
Exit immediately after load (CI-friendly). |
ORBITRON_TUI_NO_SPLASH |
TUI |
Skip the splash screen. |
ORBITRON_TUI_FPS |
TUI |
Show the frame rate in the molecule panel title. |
ORBITRON_REGEN_BASELINES |
render-parity tests |
Regenerate golden images instead of diffing against them. |
ORBITRON_RENDER_PARITY_REQUIRE_GPU |
render-parity tests |
=1 turns “no usable GPU adapter” into a failure instead of a skip. CI’s lavapipe job sets it. |
ORBITRON_SKIP_VIEWER_BUILD |
stage_viewer_assets.sh |
=1 stages the existing viewer/wasm artifacts without re-running trunk + esbuild. |
ORBITRON_SKIP_VIEWER_ASSETS |
wheel build backend |
=1 builds the wheel without the staged viewer bundle. |
ORBITRON_SKIP_WIDGET_BUILD |
wheel build backend |
=1 skips the Jupyter widget frontend build. |
ORBITRON_NO_MMAP |
parsers |
Any non-empty value disables memory-mapped reads and falls back to buffered I/O. |
ORBITRON_INCHI_BINARY |
orbitron-inchi oracle tests |
Path to a reference inchi-1 executable; the #[ignore]d oracle tests need it. |
ORBITRON_TRAJECTORY_NOTEBOOK_PATH |
Python bridge tests |
Path to a real optimisation log. Un-skips the trajectory notebook test, which otherwise skips in silence. |
ORBITRON_REQUIRE_OFFSCREEN_GPU_TESTS |
core/render offscreen tests |
Any value turns a missing GPU adapter into a failure instead of a skip. CI’s Windows dx12 leg sets it. |
ORBITRON_RAW_SOURCE_INLINE_MAX |
core/orbpack |
Byte threshold (default 64 MiB) below which a raw_source payload is copied into memory. At or above it the attachment carries empty data and export re-reads from source_path, keeping a several-hundred-MB verbatim echo off the heap. Set it to 1 to force the re-read path in a test. |
ORBITRON_SKIP_GUI_TESTS / ORBITRON_FORCE_GUI_TESTS |
GUI smoke tests |
Force the display guard off / on regardless of the detected environment. |
CARGO_BUILD_JOBS |
all builds |
Cap rustc parallelism (16, for example, on a 24-core machine). Does nothing once nextest starts running tests — see .config/nextest.toml. |