Move the 30 flat modules under src/scene/ into six folders by role:
convert (entity→geometry), text (fonts/shaping), model (render models),
pick (hit-test/selection/grips/xclip), view (camera/transform/render),
cache (block + property caches). pipeline/ is unchanged.
Full path migration — all `scene::X` references become
`scene::<group>::X`, no compatibility re-exports. render.rs items that
were `pub(super)` (parent was scene) become `pub(in crate::scene)` to
keep their original scene-wide visibility.
No behavior change; build and tests are green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Add a transparency_enable uniform read by the wire shader: when the new
TPY pill is off, every line is forced opaque; when on, baked entity
transparency shows through. Toggling is a uniform write, no retessellate
(same mechanism as the lineweight-display toggle). Pill is toggleable
from the status-bar customization menu.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
LWDISPLAY (Show Lineweight) flipping the toggle no longer triggers a full
retessellate. `render_style_for` always bakes the entity's resolved (layer-
inherited) lineweight, and the wire shader reads `Uniforms.lwdisplay_enable`
to either honour the per-vertex half_width or collapse the quad to a 1 px line.
Side effect: PDF export now uses the real lineweight regardless of LWDISPLAY,
matching AutoCAD's plot semantics (LWDISPLAY only affects screen render).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Hatch fills drew the full per-family pattern loop every frame regardless
of zoom. Two LOD tiers, neither of which existed:
* **Shader-side solid substitute.** When the densest line family's
spacing × scale projects to less than 2 px, individual lines blur
into a solid color and the per-fragment family loop is wasted ALU
(and produces moiré). Pass `world_per_pixel` through Uniforms; the
hatch fragment shader now returns `h.color` directly in that case.
* **CPU-side sub-pixel skip.** When the entire hatch AABB projects
to less than 2 px, drop the draw call. Adds `world_aabb` to
HatchGpu plus a per-frame `compute_hatch_lod` pass (mirrors the
existing scissor pass) and `hatch_skip_flags`. The render pass
skips flagged hatches.
Factored a shared `aabb_below_pixel` helper for future LOD callers.
The Uniforms layout is unchanged in size (96 B) — the trailing
`_pad: vec2<f32>` becomes `world_per_pixel: f32, _pad: f32`, so wgsl
modules that don't read the new field keep working with their old
`_pad: vec2<f32>` declarations.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
