vangel76andClaude Sonnet 5.5
609148a444
Conflicts in file-format-parity, localization-parity, target-app-parity and ui-parity resolved by starting from upstream and keeping only the audit claims that still hold on main. Re-measured: catalog row counts and English fallback counts for all fifteen catalogs, io test count (86), geometry test counts, open PR and issue counts, acadrust version (0.6.5). Corrected rows that main has overtaken: CI gate on pull requests (#1987), MVIEW Restore (#633), PDF plot margins, selection cycling, Korean/Greek/Hungarian/Turkish catalogs in the language table. Regenerated docs/parity-checklist.md with cargo xtask parity. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
4.9 KiB
Hardware parity
Last reviewed: 2026-10-24 · Last updated: 2026-10-24 · Change: minor (re-audit against main
41d9b5e95: SpaceMouse 2D navigation, magnifier option, winit PR state, plotter devices; the 45% is not re-measured; previously: re-audit against maine707ab4d: SpaceMouse 2D navigation, magnifier option, winit PR state, plotter devices; the 45% is not re-measured) · Target: Autodesk AutoCAD 2027 (Mac and Windows)
The hardware AutoCAD uses and how CADCraft compares, per platform. Work items: gaps.md.
Headline (estimated): hardware ≈ 45%. 2D GPU drawing, HiDPI and trackpads are covered on every platform. Missing: 3D navigation with a 3D mouse (2D pan and zoom landed on Windows and Linux, #650), tablets/digitizers, GPU-accelerated 3D (there is no 3D), and any deliberate multi-monitor handling. Remaining: ≈ 15–25 Opus 5.5 hours, plus a human with the devices to test 3D mice and tablets.
Measured from the source on 2026-10-10 (crates/ui-egui/src/gpu.rs, canvas.rs,
apps/cadcraft/src/graphics.rs, apps/cadcraft-web); AutoCAD's side from Autodesk's system
requirements and graphics-performance documentation. Nothing was benchmarked in this pass.
| Feature | AutoCAD 2027 | CADCraft macOS | CADCraft Windows | CADCraft Linux / FreeBSD | CADCraft web |
|---|---|---|---|---|---|
| GPU canvas for 2D | yes (hardware acceleration, GPU smoothing, high-quality geometry) | wgpu on Metal | wgpu on DirectX 12 by default (WGPU_BACKEND overrides; GL avoided after AMD crashes, #31) |
wgpu on Vulkan (or GL) | WebGPU, WebGL2 fallback |
| CPU fallback | software mode | yes (tiny-skia rasteriser) |
yes | yes | — |
| GPU for 3D (shaded visual styles, ray-traced rendering) | yes | no (no 3D) | no | no | no |
| Low-latency presentation | yes | vsync or low-latency via CADCRAFT_VSYNC |
same | no vsync queue so the crosshair keeps up (#183) | browser-controlled |
| HiDPI / Retina, display scaling | yes | yes (egui points per pixel) | yes; the Windows 11 DPI fix is in open PR #668 (PR #110 was closed in its favour) | yes | yes |
| Multi-monitor (palettes on other screens, per-monitor DPI) | yes | not handled deliberately; one window | same | same | — |
| Trackpad pan, pinch zoom | yes (Mac) | yes, with trackpad vs wheel detection (#58) | wheel only (precision touchpad untested) | wheel; delay reported on Linux Mint (#25) | browser events |
| Magic Mouse | yes | treated as a trackpad | — | — | — |
| Wheel mouse, middle-button pan | yes | yes | yes | yes | yes |
| 3D mouse (3Dconnexion SpaceMouse) | yes | no | 2D pan and zoom through raw HID (#650, Tools ▸ 3D Mouse); not checked on a physical device in the PR | same (hidapi, udev) | no |
| Pen tablet / digitizer (TABLET command, calibration) | yes (Windows) | no | no | no | no |
| Screen magnifier following the cursor | yes | — | breaks (#39 is open; the option to keep the system cursor over the drawing area landed, #187) | — | — |
| Plotters and printers (PC3 devices, system printers) | yes | no system printers: PDF, PNG and SVG plotter devices only (#564); the Plot dialog writes the file (#160); CUPS printing is open PR #755 | same | same | PDF bytes shown instead of a download (#134) |
Performance on hardware (internal numbers only)
From the earlier roadmap (measured by the agents that built it, 2026-10-06, cadcraft-cli perf):
200,000 entities pick in 0.001 ms, about 4 ms after an edit (incremental R-tree), and the GPU
canvas draws a frame in about 4 ms. Nothing has been compared with AutoCAD on the same machine,
and 1M-entity drawings are untested. A 10 MB DWG took about two minutes to fail (#57).
Zoom and pan no longer freeze the window (2026-10-13). On a hatched 12k-entity architect's DWG (about 340k display primitives) each zoom step used to block the UI for 2–4.5 s while the display list, its vertex data and its GPU buffers were rebuilt. These rebuilds now run on a worker thread while the previous list is drawn, so the longest stall is 26–64 ms (M-series Mac). Edits still rebuild on the UI thread (about 1.8 s on that drawing): per-entity caching is the next step.
Revision history
| Date | Change | Summary |
|---|---|---|
| 2026-10-24 | minor | Re-audit against main 41d9b5e95: SpaceMouse 2D pan/zoom (#650), magnifier option (#187), winit PRs #110–#119 closed in favour of open PR #668, system printers still open (PR #755); re-checked against main 41d9b5e95, percentage and hours not re-measured |
| 2026-10-13 | minor | Re-audit against main e707ab4d: SpaceMouse 2D pan/zoom (#650), magnifier option (#187), winit PRs #110–#119 closed in favour of open PR #668, system printers still open (PR #755); percentage and hours not re-measured |
| 2026-10-13 | minor | Zoom and pan regenerate in the background: 2–4.5 s stalls down to 26–64 ms on a hatched DWG |
| 2026-10-10 | major | First hardware parity doc: GPU backends per platform, input devices, displays, plotters |