Hakan SevenandClaude Sonnet 4.6 298098e764 perf: dedicated Face3D shader — N draw calls → 2
3DFACE entities previously created one WireGpu buffer per entity,
resulting in N separate draw calls per frame. For files with large
triangle meshes this was the dominant GPU CPU overhead.

New pipeline:
- face3d.wgsl: simple flat-color vertex + fragment shader (MVP only,
  no quad expansion, no pattern distance computation)
- Face3DGpu: batches ALL Face3D entities into a single TriangleList
  buffer (6 vertices per face, per-vertex color) — 1 draw call
- WireGpu::from_batch: merges N Face3D edge wire models into one
  quad-expanded buffer for edge rendering — 1 draw call
- split_face3d_wires: separates face3d from other wires at Primitive
  build time via document handle lookup (O(N), once per epoch)

Hit-testing via WireModel (CPU) is unaffected — face3d wires remain
in entity_wires_arc() and hit_test_wires() as before.

Before: N 3DFACE → N draw calls, N × 96 B/vertex WireVertex
After:  N 3DFACE → 2 draw calls (fill + edges), 28 B/vertex fill

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
2026-04-28 21:53:31 +03:00
2026-03-22 20:27:23 +03:00
2026-04-26 17:08:32 +03:00
2026-04-26 17:08:32 +03:00
2026-03-22 14:53:51 +03:00
2026-04-26 21:59:19 +03:00

H7CAD

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A CAD application for 2D/3D drawing and design, built with Rust.

Features

  • 2D drafting and 3D modeling
  • DXF file import/export
  • GPU-accelerated rendering via WebGPU
  • Snap and annotation tools
  • Modular ribbon interface (Home, Annotate, Insert, View, Manage)

Installation

Flatpak (Linux)

Download H7CAD.flatpak from the latest release, then:

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
flatpak install H7CAD.flatpak
flatpak run io.github.HakanSeven12.H7CAD

Build from Source

Requirements: Rust 1.75+

git clone https://github.com/HakanSeven12/H7CAD.git
cd H7CAD
cargo build --release
./target/release/H7CAD

License

GPL-3.0-only — see LICENSE

S
Description
OneBSpace rebrand of OpenCADStudio -> OneCAD Draft (2D drafting / 3D modeling studio) + native Odoo Documents integration (open/save/write-back). Member of the OneCAD family. Upstream: opencadstudio-upstream. Addon: one_cad_draft.
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