forked from 1b-agent/opencadstudio-upstream
Hakan SevenandClaude Opus 4.8
fa322991c6
Two fixes for opening drawings with XCLIP'd blocks (crashed / mis-rendered since SDF text became the default). - block_cache emit_wire: the fill_tris/fill_tris_low length debug_assert panicked in debug builds on a legitimate case — a Leader/dimension arrowhead fill nested in a block carries fill_tris with an empty fill_tris_low (the WireModel contract's "all-zero low" form, which the code already handles via get().unwrap_or). Relax the assert to permit the empty case; a *partial* low half is still caught. - xclip clip_wires: also clip the SDF glyph quads. Block-internal text was bleeding past the clip boundary (mixed batch) or vanishing (the tail retain dropped empty-points wires). Now each glyph quad is kept/dropped by its centroid vs the boundary (whole-glyph granularity), text_verts-carrying wires survive the retain, and the pick-box AABB is recomputed from the surviving glyphs. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
1337 lines
51 KiB
Rust
1337 lines
51 KiB
Rust
// Block-definition tessellation cache.
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//
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// Each block record is tessellated once into block-local coordinates and
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// stored as a list of `LocalSub` (either a tessellated primitive wire OR
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// an unexpanded reference to a nested INSERT). At Insert use-time we walk
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// the defn, transform-copy primitives, and recurse into nested references —
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// each nested defn is itself a cache hit, never re-tessellated.
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//
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// This shape (lazy nested expansion) is essential: a single block like
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// `xref-PLANKOTE` can hold ~4700 nested INSERTs, so build-time inlining
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// produces a combinatorial blowup. Storing references and expanding on
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// demand keeps build work proportional to total entity count.
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//
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// Cycle detection: at expand-time we maintain a recursion-depth limit and
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// a visited set so a self-referential block produces a marker rather than
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// recursing forever.
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use rustc_hash::FxHashMap as HashMap;
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use std::sync::Arc;
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use acadrust::types::{Color as AcadColor, LineWeight, Transform, Vector3};
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use acadrust::{CadDocument, EntityType, Handle};
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use crate::scene::convert::tessellate;
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use crate::scene::model::wire_model::{SnapHint, TangentGeom, WireModel};
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const MAX_NESTING_DEPTH: usize = 32;
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/// Skip wires whose world-AABB projects to fewer than this many pixels in
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/// the active view. Picks up tiny detail at zoom-out so the tessellator
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/// doesn't waste time on geometry that contributes a few sub-pixel marks
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/// to the final image. 2 px is the AutoCAD-default "small element" floor
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/// — visibly the same image, dramatically fewer wires.
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const MIN_PIXEL_SIZE: f32 = 2.0;
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#[derive(Clone, Debug)]
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pub struct LocalWire {
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pub points: Vec<[f32; 3]>,
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/// Low-bit residual paired with `points` so block-instance wires keep
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/// sub-f32 precision once the renderer translates them to world space.
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pub points_low: Vec<[f32; 3]>,
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/// SDF glyph quads for block-internal text, in block-local coordinates.
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/// Non-empty only when SDF text is on and this sub is a TEXT/MTEXT. The
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/// expand-time transform (`emit_wire`) maps each vertex to world exactly
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/// like `points`, so block-instance text lands at the right place/scale.
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pub text_verts: Vec<crate::scene::pipeline::text_gpu::TextVertex>,
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pub key_vertices: Vec<[f64; 3]>,
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pub snap_pts: Vec<(glam::DVec3, SnapHint)>,
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pub tangent_geoms: Vec<TangentGeom>,
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pub fill_tris: Vec<[f32; 3]>,
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pub fill_tris_low: Vec<[f32; 3]>,
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/// Per-wire colour from the tessellator output. For most entities this
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/// equals the sub-entity's resolved colour. For colour-split MTEXT
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/// (`\C`/`\c` inline overrides) each wire carries its own override colour.
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pub color: [f32; 4],
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pub aci: u8,
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pub pattern_length: f32,
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pub pattern: [f32; 8],
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pub line_weight_px: f32,
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pub plinegen: bool,
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/// Set at construction; used to discriminate fill-only GPU batches from
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/// stroke batches in [`StyleKey`]. Derived from
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/// `points.is_empty() && !fill_tris.is_empty()`.
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pub is_fill_only: bool,
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pub color_is_byblock: bool,
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pub lt_is_byblock: bool,
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pub lw_is_byblock: bool,
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/// Set when this child sits on layer "0" and the matching property is
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/// ByLayer. At expand time the value is then taken from the INSERT's
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/// *layer* (the layer-0 inheritance rule) instead of the cached layer-0
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/// value baked here.
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pub color_l0: bool,
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pub lt_l0: bool,
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pub lw_l0: bool,
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/// XY bounding box of this wire in block-local coordinates.
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/// `[min_x, min_y, max_x, max_y]`. Used for view-frustum culling at
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/// expand-time: transform corners by the Insert transform → world AABB
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/// → test against the camera's world-space view rect.
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pub aabb_local: [f32; 4],
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}
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#[derive(Clone, Debug)]
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pub struct NestedRef {
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pub block_name: String,
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pub xform: Transform,
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/// Nested INSERT's own resolved style (used when child wires need
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/// to inherit something via ByBlock).
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pub ins_color: [f32; 4],
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pub ins_pat_len: f32,
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pub ins_pat: [f32; 8],
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pub ins_lw_px: f32,
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pub color_is_byblock: bool,
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pub lt_is_byblock: bool,
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pub lw_is_byblock: bool,
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/// The nested INSERT's own properties are ByLayer. Combined with
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/// `layer_is_zero` these drive the layer-0 rule for the nested insert
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/// *itself* (so its ByBlock leaves inherit the outer layer, not layer 0).
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pub color_is_bylayer: bool,
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pub lt_is_bylayer: bool,
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pub lw_is_bylayer: bool,
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/// The nested INSERT itself sits on layer "0": its own layer-0 children
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/// chain up to the outer insert's layer rather than resolving to `l0`.
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pub layer_is_zero: bool,
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/// The nested INSERT's own layer style — the layer-0 inheritance target
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/// for its children when the nested insert is not itself on layer 0.
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pub l0: crate::scene::view::render::InheritStyle,
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pub instance_offsets: Vec<[f64; 3]>,
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/// XCLIP boundary for this nested insert, in the parent defn's local frame
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/// (`None` = unclipped). Baked at build time because the clip's spatial
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/// filter lives in `doc.objects`, which isn't reachable at expand time; on
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/// expansion it is mapped to world by the accumulated transform and the
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/// nested wires are clipped to it.
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pub clip_poly: Option<Vec<[f64; 2]>>,
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}
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#[derive(Clone, Debug)]
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pub enum LocalSub {
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Wire(LocalWire),
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Nested(NestedRef),
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}
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#[derive(Clone, Debug, Default)]
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pub struct BlockDefn {
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pub subs: Vec<LocalSub>,
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/// Union of every sub's local AABB (including nested-INSERT contributions
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/// resolved at expand time via their own defn's `aabb_local`). XY only —
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/// the wire renderer is 2D-dominant. Expressed in this defn's *offset*
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/// Absolute world-space XY (the double-single render path keeps it precise).
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pub aabb_local: [f32; 4],
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}
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#[derive(Default, Debug)]
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pub struct BlockCache {
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defns: HashMap<String, Arc<BlockDefn>>,
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}
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impl BlockCache {
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pub fn new() -> Self {
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Self::default()
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}
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pub fn defn(&self, block_name: &str) -> Option<&Arc<BlockDefn>> {
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self.defns.get(block_name)
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}
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/// Build (flat) defns only for block records actually referenced by
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/// Inserts in the document — transitively, so nested-insert targets are
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/// included too. The Model_Space / Paper_Space block_records are skipped
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/// because their entities are emitted as top-level wires, not via the
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/// cache.
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pub fn build(doc: &CadDocument, anno_scale: f32, bg_color: [f32; 4]) -> Self {
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use crate::par::prelude::*;
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let mut cache = Self::new();
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let referenced = collect_referenced_blocks(doc);
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// Each defn is built independently: nested INSERTs are stored as
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// by-name references (`LocalSub::Nested`), never expanded here, so a
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// block's build never depends on another block's defn. That makes the
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// builds embarrassingly parallel over the read-only `doc` — no
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// topological ordering required. `compute_block_aabbs` stays a serial
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// post-pass (it resolves nested references and is comparatively cheap).
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cache.defns = referenced
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.par_iter()
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.map(|name| (name.clone(), Arc::new(build_defn(doc, name, anno_scale, bg_color))))
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.collect();
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cache.compute_block_aabbs(&referenced);
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cache
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}
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/// Compute and store the `aabb_local` for every cached defn. Direct wires
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/// contribute their own aabb_local; nested INSERT references look up the
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/// nested defn (already cached) and transform its aabb_local by the
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/// nested Insert's transform before unioning.
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///
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/// Run as a post-pass so it doesn't matter which order build_defn was
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/// called in. Cycle guard: a self-referential block keeps an empty AABB
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/// (will fail every frustum test → not emitted, which is correct).
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fn compute_block_aabbs(&mut self, names: &[String]) {
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use crate::par::prelude::*;
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// Phase 1 (parallel, read-only): each defn's union AABB is resolved
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// by `defn_aabb_recursive`, which only *reads* `self.defns` (the map
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// is fully built by now). There's no memoization, so a defn shared by
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// many parents is re-walked per parent — real work on block-heavy
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// drawings — and the per-name walks are independent, so they fan out.
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let this: &Self = self;
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let resolved: Vec<(&String, [f32; 4])> = names
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.par_iter()
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.map(|name| {
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let mut visited: Vec<String> = Vec::new();
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(name, this.defn_aabb_recursive(name, &mut visited))
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})
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.collect();
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// Phase 2 (serial): store the AABB back into each defn.
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for (name, aabb) in resolved {
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if let Some(defn_arc) = self.defns.get_mut(name) {
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let mut defn = (**defn_arc).clone();
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defn.aabb_local = aabb;
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*defn_arc = Arc::new(defn);
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}
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}
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}
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/// Returns the union AABB for `block_name`'s defn, expressed in **that
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/// defn's offset frame** (so its caller can store it in
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/// `BlockDefn.aabb_local` without a coordinate-frame mismatch).
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///
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/// LocalWire contributions are already in the parent defn's offset
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/// frame. Nested-INSERT contributions live in the *child* defn's offset
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/// frame, so we re-add `child.local_offset` (f64), apply the nested
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/// Insert's transform to get parent-native coordinates, then subtract
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/// `parent.local_offset` to land back in the parent's offset frame.
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fn defn_aabb_recursive(&self, block_name: &str, visited: &mut Vec<String>) -> [f32; 4] {
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if visited.iter().any(|n| n == block_name) {
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return [0.0, 0.0, 0.0, 0.0];
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}
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let Some(defn) = self.defns.get(block_name) else {
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return [0.0, 0.0, 0.0, 0.0];
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};
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visited.push(block_name.to_string());
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let mut acc = [0.0_f32, 0.0, 0.0, 0.0];
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for sub in &defn.subs {
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let aabb = match sub {
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LocalSub::Wire(lw) => lw.aabb_local,
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LocalSub::Nested(nref) => {
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let nested = self.defn_aabb_recursive(&nref.block_name, visited);
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transform_aabb_xy(nested, &nref.xform)
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}
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};
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acc = aabb_union(acc, aabb);
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}
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visited.pop();
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acc
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}
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}
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/// Walk all entities + all block_record contents collecting every distinct
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/// `block_name` that appears in an Insert (transitively).
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fn collect_referenced_blocks(doc: &CadDocument) -> Vec<String> {
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use rustc_hash::FxHashSet as HashSet;
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let mut seen: HashSet<String> = HashSet::default();
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let mut queue: Vec<String> = Vec::new();
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for entity in doc.entities() {
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if let EntityType::Insert(ins) = entity {
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if seen.insert(ins.block_name.clone()) {
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queue.push(ins.block_name.clone());
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}
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}
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}
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while let Some(name) = queue.pop() {
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let Some(br) = doc.block_records.get(&name) else {
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continue;
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};
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for &eh in &br.entity_handles {
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let Some(entity) = doc.get_entity(eh) else {
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continue;
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};
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if let EntityType::Insert(ins) = entity {
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if seen.insert(ins.block_name.clone()) {
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queue.push(ins.block_name.clone());
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}
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}
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}
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}
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seen.into_iter().collect()
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}
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/// True when `layer` is turned off or frozen — entities on it never render.
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fn layer_hidden(doc: &CadDocument, layer: &str) -> bool {
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doc.layers
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.get(layer)
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.map(|l| l.flags.off || l.flags.frozen)
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.unwrap_or(false)
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}
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fn build_defn(
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doc: &CadDocument,
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block_name: &str,
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anno_scale: f32,
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bg_color: [f32; 4],
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) -> BlockDefn {
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let br = match doc.block_records.get(block_name) {
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Some(br) => br,
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None => return BlockDefn::default(),
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};
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// ── Pass 2: tessellate each sub with the chosen offset so stored
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// coordinates fit into f32 without precision loss.
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let cap = br.entity_handles.len();
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let mut subs: Vec<LocalSub> = Vec::with_capacity(cap);
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for &eh in &br.entity_handles {
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let Some(entity) = doc.get_entity(eh) else {
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continue;
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};
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// Skip entities flagged invisible. Dynamic blocks (e.g. a visibility-
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// state parametric block) keep the geometry for every state in one
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// anonymous block and mark all but the active state's entities
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// invisible — honouring the flag is what shows a single profile
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// instead of every variant stacked on top of each other.
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if entity.common().invisible {
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continue;
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}
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// A sub-entity on a layer that is off or frozen must not render, same
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// as a top-level entity on that layer. The defn cache is rebuilt on
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// every layer off/freeze toggle (bump_geometry bumps block_epoch), so
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// baking the visibility here stays in sync.
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if layer_hidden(doc, &entity.common().layer) {
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continue;
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}
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match entity {
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EntityType::Block(_)
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| EntityType::BlockEnd(_)
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| EntityType::AttributeDefinition(_) => continue,
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EntityType::Insert(nested_ins) => {
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subs.push(LocalSub::Nested(build_nested_ref(nested_ins, doc, bg_color)));
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}
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_ => {
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for lw in tessellate_sub_local(doc, entity, anno_scale, bg_color) {
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subs.push(LocalSub::Wire(lw));
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}
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}
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}
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}
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BlockDefn {
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subs,
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aabb_local: [0.0; 4],
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}
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}
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fn build_nested_ref(
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nested_ins: &acadrust::entities::Insert,
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doc: &CadDocument,
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bg_color: [f32; 4],
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) -> NestedRef {
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// Store the RAW colour — `adapt_to_bg` runs at emit time
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// (`Batches::finalize`) so the same cached defn can serve renders
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// against different backgrounds without rebuilding.
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let (ins_color, ins_pat_len, ins_pat, ins_lw_px, _) =
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crate::scene::view::render::render_style_for(doc, &EntityType::Insert(nested_ins.clone()));
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// The nested insert's own layer style — the layer-0 target for its
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// children (raw colour; adapted at emit like `ins_color`).
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let l0 = crate::scene::view::render::layer_render_style(doc, &nested_ins.common.layer);
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let _ = bg_color;
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// Bake the XCLIP boundary (parent-defn-local) so the nested insert keeps
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// its clip when the parent block is expanded — the spatial filter object
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// isn't reachable at expand time.
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let clip_poly = crate::scene::pick::xclip::insert_spatial_filter(doc, nested_ins)
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.map(|sf| crate::scene::pick::xclip::world_clip_polygon_f64(sf, nested_ins));
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NestedRef {
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block_name: nested_ins.block_name.clone(),
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xform: nested_ins.get_transform(),
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ins_color,
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ins_pat_len,
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ins_pat,
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ins_lw_px,
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color_is_byblock: nested_ins.common.color == AcadColor::ByBlock,
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lt_is_byblock: nested_ins.common.linetype.eq_ignore_ascii_case("byblock"),
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lw_is_byblock: matches!(nested_ins.common.line_weight, LineWeight::ByBlock),
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color_is_bylayer: nested_ins.common.color == AcadColor::ByLayer,
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lt_is_bylayer: {
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let lt = &nested_ins.common.linetype;
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lt.is_empty() || lt.eq_ignore_ascii_case("bylayer")
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},
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lw_is_bylayer: matches!(
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nested_ins.common.line_weight,
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LineWeight::ByLayer | LineWeight::Default
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),
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layer_is_zero: nested_ins.common.layer == "0",
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l0,
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instance_offsets: array_offsets(nested_ins),
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clip_poly,
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}
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}
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fn tessellate_sub_local(
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doc: &CadDocument,
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sub: &EntityType,
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anno_scale: f32,
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bg_color: [f32; 4],
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) -> Vec<LocalWire> {
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let h = sub.common().handle;
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// Sanity guard: skip sub-entities whose primary dimension is so large
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// that adaptive tessellation will explode into hundreds of millions
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// of points. These are typically corrupt-radius primitives that slipped
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// past purge_corrupt_entities (finite but absurd values).
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if is_unreasonable_extent(sub) {
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return vec![];
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}
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// Store the RAW colour. `Batches::finalize` applies `adapt_to_bg`
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// with the per-render bg, so the cache no longer has to rebuild on
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// BACKGROUND / layout-switch — the dynamic adaptation tracks the
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// live bg at render time.
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let (sub_color, pat_len, pat, lw_px, aci) = crate::scene::view::render::render_style_for(doc, sub);
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let _ = bg_color;
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let color_is_byblock = sub.common().color == AcadColor::ByBlock;
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let lt_is_byblock = sub.common().linetype.eq_ignore_ascii_case("byblock");
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let lw_is_byblock = matches!(sub.common().line_weight, LineWeight::ByBlock);
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// Layer-0 rule: a child on layer "0" with ByLayer properties inherits the
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// INSERT's layer at expand time. Flag each ByLayer property so emit_wire
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// can override the cached (layer-0-resolved) value with the insert layer's.
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let on_l0 = sub.common().layer == "0";
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let color_l0 = on_l0 && sub.common().color == AcadColor::ByLayer;
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let lt_l0 = on_l0 && {
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let lt = &sub.common().linetype;
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lt.is_empty() || lt.eq_ignore_ascii_case("bylayer")
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};
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let lw_l0 = on_l0
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&& matches!(
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sub.common().line_weight,
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LineWeight::ByLayer | LineWeight::Default
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);
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|
// Pass `local_offset` as the f64 world-offset so tessellate subtracts it
|
|
// before casting to f32 — same precision-preservation trick used for
|
|
// top-level entities, applied per-defn.
|
|
let wires_out = tessellate::tessellate(
|
|
doc, h, sub, false, sub_color, pat_len, pat, lw_px, anno_scale, None, bg_color,
|
|
);
|
|
if wires_out.is_empty() {
|
|
return vec![];
|
|
}
|
|
|
|
let mut result = Vec::with_capacity(wires_out.len());
|
|
for wire in wires_out {
|
|
// Per-wire point-count cap: a single wire that exceeds this is skipped
|
|
// rather than aborting the whole sub-entity — with per-wire separation,
|
|
// other colour segments from the same entity still render.
|
|
if wire.points.len() > 100_000 {
|
|
continue;
|
|
}
|
|
|
|
// Geometry is stored absolute; the double-single (high/low) render path
|
|
// keeps it precise at UTM scale, so no per-defn offset is subtracted.
|
|
// SDF text wires have no points/fills — fold in the glyph-quad positions
|
|
// so the view-frustum cull uses the text's real box, not a degenerate
|
|
// point at the block origin (which would drop the text entirely).
|
|
let aabb_local = aabb_from_points_iter(
|
|
wire.points
|
|
.iter()
|
|
.copied()
|
|
.chain(wire.fill_tris.iter().copied())
|
|
.chain(wire.text_verts.iter().map(|v| v.pos)),
|
|
);
|
|
let is_fill_only = wire.points.is_empty() && !wire.fill_tris.is_empty();
|
|
|
|
result.push(LocalWire {
|
|
points: wire.points,
|
|
points_low: wire.points_low,
|
|
text_verts: wire.text_verts,
|
|
key_vertices: wire.key_vertices,
|
|
snap_pts: wire.snap_pts,
|
|
tangent_geoms: wire.tangent_geoms,
|
|
fill_tris: wire.fill_tris,
|
|
fill_tris_low: wire.fill_tris_low,
|
|
color: wire.color,
|
|
aci,
|
|
pattern_length: pat_len,
|
|
pattern: pat,
|
|
line_weight_px: lw_px,
|
|
plinegen: wire.plinegen,
|
|
is_fill_only,
|
|
color_is_byblock,
|
|
lt_is_byblock,
|
|
lw_is_byblock,
|
|
color_l0,
|
|
lt_l0,
|
|
lw_l0,
|
|
aabb_local,
|
|
});
|
|
}
|
|
result
|
|
}
|
|
|
|
fn aabb_from_points_iter<I: IntoIterator<Item = [f32; 3]>>(pts: I) -> [f32; 4] {
|
|
let mut min_x = f32::INFINITY;
|
|
let mut min_y = f32::INFINITY;
|
|
let mut max_x = f32::NEG_INFINITY;
|
|
let mut max_y = f32::NEG_INFINITY;
|
|
for p in pts {
|
|
if !p[0].is_finite() {
|
|
continue;
|
|
}
|
|
if p[0] < min_x {
|
|
min_x = p[0];
|
|
}
|
|
if p[1] < min_y {
|
|
min_y = p[1];
|
|
}
|
|
if p[0] > max_x {
|
|
max_x = p[0];
|
|
}
|
|
if p[1] > max_y {
|
|
max_y = p[1];
|
|
}
|
|
}
|
|
if min_x.is_infinite() {
|
|
[0.0, 0.0, 0.0, 0.0]
|
|
} else {
|
|
[min_x, min_y, max_x, max_y]
|
|
}
|
|
}
|
|
|
|
/// Transform an absolute XY AABB by `t` and return the world-space XY AABB of
|
|
/// the transformed corners (computed in f64 so it stays accurate for distant
|
|
/// content).
|
|
fn transform_aabb_xy(local: [f32; 4], t: &Transform) -> [f32; 4] {
|
|
let [x0, y0, x1, y1] = local;
|
|
let corners = [
|
|
Vector3::new(x0 as f64, y0 as f64, 0.0),
|
|
Vector3::new(x1 as f64, y0 as f64, 0.0),
|
|
Vector3::new(x1 as f64, y1 as f64, 0.0),
|
|
Vector3::new(x0 as f64, y1 as f64, 0.0),
|
|
];
|
|
let mut min_x = f64::INFINITY;
|
|
let mut min_y = f64::INFINITY;
|
|
let mut max_x = f64::NEG_INFINITY;
|
|
let mut max_y = f64::NEG_INFINITY;
|
|
for c in corners {
|
|
let v = t.apply(c);
|
|
if v.x < min_x {
|
|
min_x = v.x;
|
|
}
|
|
if v.y < min_y {
|
|
min_y = v.y;
|
|
}
|
|
if v.x > max_x {
|
|
max_x = v.x;
|
|
}
|
|
if v.y > max_y {
|
|
max_y = v.y;
|
|
}
|
|
}
|
|
[min_x as f32, min_y as f32, max_x as f32, max_y as f32]
|
|
}
|
|
|
|
fn aabb_union(a: [f32; 4], b: [f32; 4]) -> [f32; 4] {
|
|
// [0,0,0,0] is the "empty AABB" sentinel produced by aabb_from_points_iter
|
|
// when a wire has no finite points — treat it as if the other side wins.
|
|
if a == [0.0, 0.0, 0.0, 0.0] {
|
|
return b;
|
|
}
|
|
if b == [0.0, 0.0, 0.0, 0.0] {
|
|
return a;
|
|
}
|
|
[a[0].min(b[0]), a[1].min(b[1]), a[2].max(b[2]), a[3].max(b[3])]
|
|
}
|
|
|
|
pub fn aabb_disjoint_xy(a: [f32; 4], b: [f32; 4]) -> bool {
|
|
a[2] < b[0] || a[0] > b[2] || a[3] < b[1] || a[1] > b[3]
|
|
}
|
|
|
|
// ── Use-time expansion ───────────────────────────────────────────────────────
|
|
|
|
/// Expand one top-level INSERT into world-space WireModels via the cache.
|
|
///
|
|
/// Returns `None` if no defn is cached for `ins.block_name`. Returns
|
|
/// `Some(empty)` if the defn exists but is empty.
|
|
pub fn expand_insert(
|
|
cache: &BlockCache,
|
|
ins: &acadrust::entities::Insert,
|
|
ins_handle: Handle,
|
|
ins_resolved_color: [f32; 4],
|
|
ins_pat_len: f32,
|
|
ins_pat: [f32; 8],
|
|
ins_lw_px: f32,
|
|
// The INSERT's own layer style — layer-0 inheritance target for children.
|
|
ins_layer: crate::scene::view::render::InheritStyle,
|
|
selected: bool,
|
|
pslt_factor: f32,
|
|
// World-space XY view AABB (with world_offset already subtracted, so the
|
|
// comparison is in the same f32 space as emitted wires). `None` disables
|
|
// frustum culling — every cached sub is emitted.
|
|
view_aabb: Option<[f32; 4]>,
|
|
// World units per screen pixel. When `Some`, wires whose AABB projects
|
|
// smaller than `MIN_PIXEL_SIZE` get skipped entirely (LOD).
|
|
world_per_pixel: Option<f32>,
|
|
// True when `ins.block_name` resolves to an xref BlockRecord. All emitted
|
|
// colors are faded toward `bg_color` so xrefs are visually distinguishable
|
|
// from native content.
|
|
is_xref: bool,
|
|
bg_color: [f32; 4],
|
|
) -> Option<Vec<WireModel>> {
|
|
let defn = cache.defn(&ins.block_name)?;
|
|
let xform = ins.get_transform();
|
|
let name = ins_handle.value().to_string();
|
|
let mut batches = Batches::default();
|
|
let mut visited: Vec<String> = Vec::with_capacity(8);
|
|
|
|
// `defn.aabb_local` is in the defn's offset frame — re-add
|
|
// `defn.local_offset` (f64) before transforming so the world AABB is
|
|
// accurate for distant content.
|
|
let insert_world = transform_aabb_xy(defn.aabb_local, &xform);
|
|
let insert_local = [
|
|
insert_world[0] as f32,
|
|
insert_world[1] as f32,
|
|
insert_world[2] as f32,
|
|
insert_world[3] as f32,
|
|
];
|
|
|
|
// Whole-Insert frustum cull.
|
|
if let Some(view) = view_aabb {
|
|
if aabb_disjoint_xy(insert_local, view) {
|
|
return Some(vec![]);
|
|
}
|
|
}
|
|
// Whole-Insert pixel-size LOD: if the entire Insert footprint projects
|
|
// to sub-pixel size, skip it entirely.
|
|
if let Some(wpp) = world_per_pixel {
|
|
if aabb_pixel_size(insert_local, wpp) < MIN_PIXEL_SIZE {
|
|
return Some(vec![]);
|
|
}
|
|
}
|
|
|
|
for offset in &array_offsets(ins) {
|
|
let base_xform = if offset == &[0.0; 3] {
|
|
xform.clone()
|
|
} else {
|
|
let translation = Transform::from_translation(Vector3::new(
|
|
offset[0], offset[1], offset[2],
|
|
));
|
|
translation.then(&xform)
|
|
};
|
|
let ctx = ExpandCtx {
|
|
cache,
|
|
ins_color: ins_resolved_color,
|
|
ins_pat_len,
|
|
ins_pat,
|
|
ins_lw_px,
|
|
l0: ins_layer,
|
|
selected,
|
|
pslt_factor,
|
|
view_aabb,
|
|
world_per_pixel,
|
|
is_xref,
|
|
bg_color,
|
|
};
|
|
expand_defn(defn, &base_xform, &ctx, &mut batches, &mut visited, 0);
|
|
}
|
|
Some(batches.finalize(&name, selected, bg_color))
|
|
}
|
|
|
|
fn aabb_pixel_size(local_aabb: [f32; 4], world_per_pixel: f32) -> f32 {
|
|
let w = (local_aabb[2] - local_aabb[0]).abs();
|
|
let h = (local_aabb[3] - local_aabb[1]).abs();
|
|
w.max(h) / world_per_pixel
|
|
}
|
|
|
|
struct ExpandCtx<'a> {
|
|
cache: &'a BlockCache,
|
|
ins_color: [f32; 4],
|
|
ins_pat_len: f32,
|
|
ins_pat: [f32; 8],
|
|
ins_lw_px: f32,
|
|
/// Layer-0 inheritance target — the current INSERT's *layer* style, used
|
|
/// for child wires on layer "0" whose properties are ByLayer.
|
|
l0: crate::scene::view::render::InheritStyle,
|
|
selected: bool,
|
|
pslt_factor: f32,
|
|
// World-space XY view AABB (post world_offset). `None` = no culling.
|
|
view_aabb: Option<[f32; 4]>,
|
|
// World units per screen pixel. `None` = no pixel-size LOD.
|
|
world_per_pixel: Option<f32>,
|
|
// True when this expansion descends from an xref INSERT. Causes emitted
|
|
// colors to be faded toward `bg_color` so the user can tell at a glance
|
|
// which geometry comes from an external reference.
|
|
is_xref: bool,
|
|
bg_color: [f32; 4],
|
|
}
|
|
|
|
/// Fade `color` toward `bg` by 50%, preserving alpha. Used to mark xref
|
|
/// geometry — the hue stays recognizable but the contrast against the
|
|
/// background drops, reading as "washed out".
|
|
pub(crate) fn fade_toward_bg(color: [f32; 4], bg: [f32; 4]) -> [f32; 4] {
|
|
const T: f32 = 0.5;
|
|
[
|
|
color[0] * (1.0 - T) + bg[0] * T,
|
|
color[1] * (1.0 - T) + bg[1] * T,
|
|
color[2] * (1.0 - T) + bg[2] * T,
|
|
color[3],
|
|
]
|
|
}
|
|
|
|
/// Style fingerprint used to group local wires into a single GPU buffer.
|
|
/// f32 fields are bit-cast to u32 to make the key Hash + Eq.
|
|
#[derive(Clone, Debug, PartialEq, Eq, Hash)]
|
|
struct StyleKey {
|
|
color: [u32; 4],
|
|
pattern_length: u32,
|
|
pattern: [u32; 8],
|
|
line_weight_px: u32,
|
|
aci: u8,
|
|
plinegen: bool,
|
|
/// Marks batches that emit only `fill_tris` with no wire `points`. The
|
|
/// face3d pipeline uses `wire.points.is_empty()` as the "skip dim"
|
|
/// discriminator, so greek fills must stay in their own batches even
|
|
/// when their color/style would otherwise collide with regular wires.
|
|
is_fill_only: bool,
|
|
}
|
|
|
|
#[derive(Default, Debug)]
|
|
struct BatchEntry {
|
|
color: [f32; 4],
|
|
pattern_length: f32,
|
|
pattern: [f32; 8],
|
|
line_weight_px: f32,
|
|
aci: u8,
|
|
plinegen: bool,
|
|
points: Vec<[f32; 3]>,
|
|
points_low: Vec<[f32; 3]>,
|
|
snap_pts: Vec<(glam::DVec3, SnapHint)>,
|
|
key_vertices: Vec<[f64; 3]>,
|
|
tangent_geoms: Vec<TangentGeom>,
|
|
fill_tris: Vec<[f32; 3]>,
|
|
/// Double-single low residual paired with `fill_tris`, so block fills stay
|
|
/// precise at UTM-scale coordinates (the renderer's relative-to-eye path
|
|
/// reconstructs `high + low`). Without it absolute f32 fills quantize to
|
|
/// ~0.5 m and the greek-text rectangles shear.
|
|
fill_tris_low: Vec<[f32; 3]>,
|
|
/// Accumulated SDF glyph quads (world space) for block-instance text.
|
|
text_verts: Vec<crate::scene::pipeline::text_gpu::TextVertex>,
|
|
min_x: f32,
|
|
min_y: f32,
|
|
max_x: f32,
|
|
max_y: f32,
|
|
}
|
|
|
|
/// Hard cap on point count for a single batched WireModel. Above this the
|
|
/// current batch is finalized (pushed into `closed`) and a fresh one is
|
|
/// started under the same style. Each WireModel point becomes ~6 GPU
|
|
/// vertices of 96 bytes — 200k points fits well under wgpu's 256 MB
|
|
/// per-buffer ceiling.
|
|
const MAX_POINTS_PER_BATCH: usize = 200_000;
|
|
|
|
#[derive(Default, Debug)]
|
|
struct Batches {
|
|
by_style: HashMap<StyleKey, BatchEntry>,
|
|
/// Batches that overflowed `MAX_POINTS_PER_BATCH` and have been closed.
|
|
closed: Vec<BatchEntry>,
|
|
/// Already-finalized wires that bypass the point batcher — currently the
|
|
/// clipped output of an XCLIP'd nested insert, which is produced as whole
|
|
/// WireModels by `clip_wires`. Appended verbatim at `finalize` (only their
|
|
/// name/selected flag are stamped to match the host insert).
|
|
extra_wires: Vec<WireModel>,
|
|
}
|
|
|
|
impl BatchEntry {
|
|
fn new(
|
|
color: [f32; 4],
|
|
pat_len: f32,
|
|
pat: [f32; 8],
|
|
lw_px: f32,
|
|
aci: u8,
|
|
plinegen: bool,
|
|
_is_fill_only: bool,
|
|
) -> Self {
|
|
// `is_fill_only` is part of the StyleKey hash so greek fills never
|
|
// share a batch with regular wires (otherwise the finalized
|
|
// WireModel would have both `points` and `fill_tris`, defeating
|
|
// the face3d-dim discriminator). It isn't stored on the entry
|
|
// itself — the empty `points` field is enough at finalize time.
|
|
Self {
|
|
color,
|
|
pattern_length: pat_len,
|
|
pattern: pat,
|
|
line_weight_px: lw_px,
|
|
aci,
|
|
plinegen,
|
|
min_x: f32::INFINITY,
|
|
min_y: f32::INFINITY,
|
|
max_x: f32::NEG_INFINITY,
|
|
max_y: f32::NEG_INFINITY,
|
|
..Default::default()
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Batches {
|
|
fn finalize(self, name: &str, selected: bool, bg_color: [f32; 4]) -> Vec<WireModel> {
|
|
let extra = self.extra_wires;
|
|
let mut out: Vec<WireModel> = self
|
|
.closed
|
|
.into_iter()
|
|
.chain(self.by_style.into_values())
|
|
.map(|b| {
|
|
let aabb = if b.min_x.is_infinite() {
|
|
WireModel::UNBOUNDED_AABB
|
|
} else {
|
|
[b.min_x, b.min_y, b.max_x, b.max_y]
|
|
};
|
|
// RAW colour came from `tessellate_sub_local` (and from
|
|
// `expand_defn`'s ByBlock fallbacks); apply `adapt_to_bg`
|
|
// now so each render against a different bg gets the
|
|
// right pure-black ↔ pure-white flip without rebuilding
|
|
// the cached defn.
|
|
let color = crate::scene::view::render::adapt_to_bg(b.color, bg_color);
|
|
WireModel {
|
|
text_verts: b.text_verts,
|
|
name: name.to_string(),
|
|
points: b.points,
|
|
points_low: b.points_low,
|
|
color,
|
|
selected,
|
|
pattern_length: b.pattern_length,
|
|
pattern: b.pattern,
|
|
line_weight_px: b.line_weight_px,
|
|
aci: b.aci,
|
|
snap_pts: b.snap_pts,
|
|
tangent_geoms: b.tangent_geoms,
|
|
key_vertices: b.key_vertices,
|
|
aabb,
|
|
plinegen: b.plinegen,
|
|
vp_scissor: None,
|
|
fill_tris: b.fill_tris,
|
|
fill_tris_low: b.fill_tris_low,
|
|
}
|
|
})
|
|
.collect();
|
|
// Clipped nested-insert wires are already whole WireModels; stamp the
|
|
// host insert's name/selected so picking maps them back correctly.
|
|
for mut w in extra {
|
|
w.name = name.to_string();
|
|
w.selected = selected;
|
|
out.push(w);
|
|
}
|
|
out
|
|
}
|
|
}
|
|
|
|
fn style_key(
|
|
color: [f32; 4],
|
|
pat_len: f32,
|
|
pat: [f32; 8],
|
|
lw_px: f32,
|
|
aci: u8,
|
|
plinegen: bool,
|
|
is_fill_only: bool,
|
|
) -> StyleKey {
|
|
StyleKey {
|
|
color: [
|
|
color[0].to_bits(),
|
|
color[1].to_bits(),
|
|
color[2].to_bits(),
|
|
color[3].to_bits(),
|
|
],
|
|
pattern_length: pat_len.to_bits(),
|
|
pattern: [
|
|
pat[0].to_bits(),
|
|
pat[1].to_bits(),
|
|
pat[2].to_bits(),
|
|
pat[3].to_bits(),
|
|
pat[4].to_bits(),
|
|
pat[5].to_bits(),
|
|
pat[6].to_bits(),
|
|
pat[7].to_bits(),
|
|
],
|
|
line_weight_px: lw_px.to_bits(),
|
|
aci,
|
|
plinegen,
|
|
is_fill_only,
|
|
}
|
|
}
|
|
|
|
fn expand_defn(
|
|
defn: &BlockDefn,
|
|
accum_xform: &Transform,
|
|
ctx: &ExpandCtx,
|
|
out: &mut Batches,
|
|
visited: &mut Vec<String>,
|
|
depth: usize,
|
|
) {
|
|
if depth > MAX_NESTING_DEPTH {
|
|
eprintln!("block_cache: nested-block depth > {MAX_NESTING_DEPTH}, truncating");
|
|
return;
|
|
}
|
|
for sub in &defn.subs {
|
|
match sub {
|
|
LocalSub::Wire(lw) => {
|
|
// `lw.aabb_local` is in the defn's offset frame; re-add
|
|
// `defn_lo` (in f64) before composing with `accum_xform`
|
|
// so culling uses correct world-space corners.
|
|
let world = transform_aabb_xy(lw.aabb_local, accum_xform);
|
|
let local = [
|
|
world[0] as f32,
|
|
world[1] as f32,
|
|
world[2] as f32,
|
|
world[3] as f32,
|
|
];
|
|
if let Some(view) = ctx.view_aabb {
|
|
if aabb_disjoint_xy(local, view) {
|
|
continue;
|
|
}
|
|
}
|
|
if let Some(wpp) = ctx.world_per_pixel {
|
|
// SDF text wires carry glyph quads but no points; they
|
|
// render at every zoom (no text LOD), so exempt them from
|
|
// the sub-pixel cull that drops tiny stroke / fill geometry.
|
|
let is_text = !lw.text_verts.is_empty();
|
|
if !is_text && aabb_pixel_size(local, wpp) < MIN_PIXEL_SIZE {
|
|
continue;
|
|
}
|
|
}
|
|
emit_wire(lw, accum_xform, ctx, out);
|
|
}
|
|
LocalSub::Nested(nref) => {
|
|
if visited.iter().any(|n| n == &nref.block_name) {
|
|
// Cycle — skip.
|
|
continue;
|
|
}
|
|
let Some(nested_defn) = ctx.cache.defn(&nref.block_name) else {
|
|
continue;
|
|
};
|
|
// Nested-INSERT cull: union AABB of the nested defn,
|
|
// transformed by composed xform, vs view rect + pixel size.
|
|
// `nested_defn.aabb_local` lives in the nested defn's offset
|
|
// frame — re-add `nested_defn.local_offset` in f64 before
|
|
// composing with the parent transforms.
|
|
let composed = nref.xform.then(accum_xform);
|
|
let world = transform_aabb_xy(nested_defn.aabb_local, &composed);
|
|
let local = [
|
|
world[0] as f32,
|
|
world[1] as f32,
|
|
world[2] as f32,
|
|
world[3] as f32,
|
|
];
|
|
if let Some(view) = ctx.view_aabb {
|
|
if aabb_disjoint_xy(local, view) {
|
|
continue;
|
|
}
|
|
}
|
|
if let Some(wpp) = ctx.world_per_pixel {
|
|
if aabb_pixel_size(local, wpp) < MIN_PIXEL_SIZE {
|
|
continue;
|
|
}
|
|
}
|
|
// Resolve the nested insert's own style against the outer ctx:
|
|
// ByBlock inherits the outer insert; a nested insert that is
|
|
// itself on layer "0" with ByLayer props inherits the outer
|
|
// layer-0 target (so its ByBlock leaves resolve to that layer,
|
|
// not layer 0). Mirrors the leaf resolution in emit_wire.
|
|
let nested_color = if nref.color_is_byblock {
|
|
ctx.ins_color
|
|
} else if nref.layer_is_zero && nref.color_is_bylayer {
|
|
ctx.l0.color
|
|
} else {
|
|
nref.ins_color
|
|
};
|
|
let (nested_pat_len, nested_pat) = if nref.lt_is_byblock {
|
|
(ctx.ins_pat_len, ctx.ins_pat)
|
|
} else if nref.layer_is_zero && nref.lt_is_bylayer {
|
|
(ctx.l0.pat_len, ctx.l0.pat)
|
|
} else {
|
|
(nref.ins_pat_len, nref.ins_pat)
|
|
};
|
|
let nested_lw_px = if nref.lw_is_byblock {
|
|
ctx.ins_lw_px
|
|
} else if nref.layer_is_zero && nref.lw_is_bylayer {
|
|
ctx.l0.lw_px
|
|
} else {
|
|
nref.ins_lw_px
|
|
};
|
|
// Layer-0 target for the nested expansion: a nested insert that
|
|
// is itself on layer 0 chains up to the outer target; otherwise
|
|
// its layer-0 children resolve to the nested insert's own layer.
|
|
let nested_l0 = if nref.layer_is_zero { ctx.l0 } else { nref.l0 };
|
|
let inner_ctx = ExpandCtx {
|
|
cache: ctx.cache,
|
|
ins_color: nested_color,
|
|
ins_pat_len: nested_pat_len,
|
|
ins_pat: nested_pat,
|
|
ins_lw_px: nested_lw_px,
|
|
l0: nested_l0,
|
|
selected: ctx.selected,
|
|
pslt_factor: ctx.pslt_factor,
|
|
view_aabb: ctx.view_aabb,
|
|
world_per_pixel: ctx.world_per_pixel,
|
|
is_xref: ctx.is_xref,
|
|
bg_color: ctx.bg_color,
|
|
};
|
|
visited.push(nref.block_name.clone());
|
|
if let Some(cp) = &nref.clip_poly {
|
|
// XCLIP'd nested insert: expand into an isolated batch set,
|
|
// finalize to whole wires, clip them to the boundary mapped
|
|
// into world by the accumulated transform, then carry the
|
|
// clipped wires out via `extra_wires`. Single instance only —
|
|
// an array of clipped nested inserts is vanishingly rare, so
|
|
// the array case is not handled (boundary placement per
|
|
// instance would differ).
|
|
let composed = nref.xform.then(accum_xform);
|
|
let mut sub = Batches::default();
|
|
expand_defn(nested_defn, &composed, &inner_ctx, &mut sub, visited, depth + 1);
|
|
let mut wires = sub.finalize("", ctx.selected, ctx.bg_color);
|
|
let world_poly: Vec<[f64; 2]> = cp
|
|
.iter()
|
|
.map(|&[x, y]| {
|
|
let w = accum_xform.apply(Vector3::new(x, y, 0.0));
|
|
[w.x, w.y]
|
|
})
|
|
.collect();
|
|
crate::scene::pick::xclip::clip_wires(&mut wires, &world_poly);
|
|
out.extra_wires.append(&mut wires);
|
|
} else {
|
|
for offset in &nref.instance_offsets {
|
|
let composed = if offset == &[0.0; 3] {
|
|
nref.xform.then(accum_xform)
|
|
} else {
|
|
let translation = Transform::from_translation(Vector3::new(
|
|
offset[0], offset[1], offset[2],
|
|
));
|
|
translation.then(&nref.xform).then(accum_xform)
|
|
};
|
|
expand_defn(
|
|
nested_defn,
|
|
&composed,
|
|
&inner_ctx,
|
|
out,
|
|
visited,
|
|
depth + 1,
|
|
);
|
|
}
|
|
}
|
|
visited.pop();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Resolve a cached LocalWire's final colour against the current expansion
|
|
/// context: selection override first, then ByBlock → insert colour, then the
|
|
/// layer-0 rule → insert-layer colour, else the cached colour; finally xref
|
|
/// fade. Shared by the stroke, fill, and greeked-text emit paths.
|
|
fn resolve_wire_color(lw: &LocalWire, ctx: &ExpandCtx) -> [f32; 4] {
|
|
let c = if ctx.selected {
|
|
WireModel::SELECTED
|
|
} else if lw.color_is_byblock {
|
|
ctx.ins_color
|
|
} else if lw.color_l0 {
|
|
// Inherit the insert layer's RGB but keep the child's own transparency.
|
|
[ctx.l0.color[0], ctx.l0.color[1], ctx.l0.color[2], lw.color[3]]
|
|
} else {
|
|
lw.color
|
|
};
|
|
if ctx.is_xref && !ctx.selected {
|
|
fade_toward_bg(c, ctx.bg_color)
|
|
} else {
|
|
c
|
|
}
|
|
}
|
|
|
|
fn emit_wire(
|
|
lw: &LocalWire,
|
|
accum_xform: &Transform,
|
|
ctx: &ExpandCtx,
|
|
out: &mut Batches,
|
|
) {
|
|
if lw.points.is_empty() && lw.fill_tris.is_empty() && lw.text_verts.is_empty() {
|
|
return;
|
|
}
|
|
|
|
// Resolve final style for this LocalWire against the outer Insert ctx
|
|
// before we hash it into a batch.
|
|
let final_color = resolve_wire_color(lw, ctx);
|
|
let (final_pat_len, final_pat) = if lw.lt_is_byblock {
|
|
(ctx.ins_pat_len, ctx.ins_pat)
|
|
} else if lw.lt_l0 {
|
|
(ctx.l0.pat_len, ctx.l0.pat)
|
|
} else {
|
|
(lw.pattern_length, lw.pattern)
|
|
};
|
|
let final_lw_px = if lw.lw_is_byblock {
|
|
ctx.ins_lw_px
|
|
} else if lw.lw_l0 {
|
|
ctx.l0.lw_px
|
|
} else {
|
|
lw.line_weight_px
|
|
};
|
|
let final_pat_len = final_pat_len * ctx.pslt_factor;
|
|
let final_pat = final_pat.map(|v| v * ctx.pslt_factor);
|
|
|
|
let key = style_key(
|
|
final_color,
|
|
final_pat_len,
|
|
final_pat,
|
|
final_lw_px,
|
|
lw.aci,
|
|
lw.plinegen,
|
|
lw.is_fill_only,
|
|
);
|
|
|
|
// If the open batch for this style would exceed wgpu's per-buffer limit
|
|
// after appending this wire, finalize it now and start a fresh batch.
|
|
if let Some(existing) = out.by_style.get(&key) {
|
|
if existing.points.len() + lw.points.len() + 1 > MAX_POINTS_PER_BATCH {
|
|
if let Some(closed) = out.by_style.remove(&key) {
|
|
out.closed.push(closed);
|
|
}
|
|
}
|
|
}
|
|
let entry = out.by_style.entry(key).or_insert_with(|| {
|
|
BatchEntry::new(
|
|
final_color,
|
|
final_pat_len,
|
|
final_pat,
|
|
final_lw_px,
|
|
lw.aci,
|
|
lw.plinegen,
|
|
lw.is_fill_only,
|
|
)
|
|
});
|
|
|
|
// NaN separator between previously-appended geometry and this wire so the
|
|
// GPU shader treats them as disconnected polylines within one buffer.
|
|
let needs_sep = !entry.points.is_empty()
|
|
&& !entry.points.last().map(|p| p[0].is_nan()).unwrap_or(false);
|
|
|
|
if !lw.points.is_empty() {
|
|
if needs_sep {
|
|
entry.points.push([f32::NAN; 3]);
|
|
entry.points_low.push([0.0; 3]);
|
|
}
|
|
// Iterate paired with the matching low residual so the GPU keeps
|
|
// sub-f32 precision once the INSERT transform lands the wire in
|
|
// world space at UTM-scale coordinates.
|
|
for (idx, p) in lw.points.iter().enumerate() {
|
|
if p[0].is_nan() {
|
|
entry.points.push([f32::NAN; 3]);
|
|
entry.points_low.push([0.0; 3]);
|
|
continue;
|
|
}
|
|
let pl = lw.points_low.get(idx).copied().unwrap_or([0.0; 3]);
|
|
// Reconstruct the f64 source from (high, low) before applying the
|
|
// insert transform — otherwise the low half is silently dropped.
|
|
let v = accum_xform.apply(Vector3::new(
|
|
p[0] as f64 + pl[0] as f64,
|
|
p[1] as f64 + pl[1] as f64,
|
|
p[2] as f64 + pl[2] as f64,
|
|
));
|
|
let qx = (v.x) as f32;
|
|
let qy = (v.y) as f32;
|
|
let qz = (v.z) as f32;
|
|
let qx_l = ((v.x) - qx as f64) as f32;
|
|
let qy_l = ((v.y) - qy as f64) as f32;
|
|
let qz_l = ((v.z) - qz as f64) as f32;
|
|
let q = [qx, qy, qz];
|
|
if qx < entry.min_x {
|
|
entry.min_x = qx;
|
|
}
|
|
if qy < entry.min_y {
|
|
entry.min_y = qy;
|
|
}
|
|
if qx > entry.max_x {
|
|
entry.max_x = qx;
|
|
}
|
|
if qy > entry.max_y {
|
|
entry.max_y = qy;
|
|
}
|
|
entry.points.push(q);
|
|
entry.points_low.push([qx_l, qy_l, qz_l]);
|
|
}
|
|
}
|
|
|
|
for p in &lw.key_vertices {
|
|
let v = accum_xform.apply(Vector3::new(
|
|
p[0] as f64,
|
|
p[1] as f64,
|
|
p[2] as f64,
|
|
));
|
|
entry.key_vertices.push([v.x, v.y, v.z]);
|
|
}
|
|
for (p, hint) in &lw.snap_pts {
|
|
let v = accum_xform.apply(Vector3::new(
|
|
p.x as f64,
|
|
p.y as f64,
|
|
p.z as f64,
|
|
));
|
|
entry.snap_pts.push((
|
|
glam::DVec3::new(v.x, v.y, v.z),
|
|
*hint,
|
|
));
|
|
}
|
|
for tg in &lw.tangent_geoms {
|
|
entry
|
|
.tangent_geoms
|
|
.push(transform_tangent(tg, accum_xform));
|
|
}
|
|
// Per the WireModel contract an empty `fill_tris_low` means "all-zero low
|
|
// half" (e.g. a Leader / dimension arrowhead fill, which the tessellator
|
|
// emits without a low half). Only a *partially* populated low half is a
|
|
// real bug — keep the tripwire for that, but permit the empty case so debug
|
|
// builds don't panic on legitimate geometry.
|
|
debug_assert!(
|
|
lw.fill_tris_low.is_empty() || lw.fill_tris.len() == lw.fill_tris_low.len(),
|
|
"fill_tris_low must be empty or the same length as fill_tris (got {} vs {})",
|
|
lw.fill_tris.len(),
|
|
lw.fill_tris_low.len(),
|
|
);
|
|
for (idx, p) in lw.fill_tris.iter().enumerate() {
|
|
// Empty/short fill_tris_low means "no low half" (all-zero), per the
|
|
// WireModel contract — same panic-safe access the other fill consumers
|
|
// use (face3d_gpu, xclip). A Leader with a filled arrowhead nested in a
|
|
// block reaches here with populated fill_tris but empty fill_tris_low;
|
|
// a raw `[idx]` would panic in release (bounds checks are not gated by
|
|
// debug-assertions). The debug_assert above stays as a tripwire.
|
|
let pl = lw.fill_tris_low.get(idx).copied().unwrap_or([0.0; 3]);
|
|
let v = accum_xform.apply(Vector3::new(
|
|
p[0] as f64 + pl[0] as f64,
|
|
p[1] as f64 + pl[1] as f64,
|
|
p[2] as f64 + pl[2] as f64,
|
|
));
|
|
let (hx, lx) = WireModel::split_ds(v.x);
|
|
let (hy, ly) = WireModel::split_ds(v.y);
|
|
let (hz, lz) = WireModel::split_ds(v.z);
|
|
entry.fill_tris.push([hx, hy, hz]);
|
|
entry.fill_tris_low.push([lx, ly, lz]);
|
|
}
|
|
// SDF glyph quads: reconstruct each block-local f64 position, apply the
|
|
// insert transform, re-split — same path as points/fills so block-instance
|
|
// text lands at the right world place and scale. Colour resolves to the
|
|
// batch's final colour (ByBlock / layer-0 block text follows the insert).
|
|
for tv in &lw.text_verts {
|
|
let wx = tv.pos[0] as f64 + tv.pos_low[0] as f64;
|
|
let wy = tv.pos[1] as f64 + tv.pos_low[1] as f64;
|
|
let wz = tv.pos[2] as f64 + tv.pos_low[2] as f64;
|
|
let v = accum_xform.apply(Vector3::new(wx, wy, wz));
|
|
let (hx, lx) = WireModel::split_ds(v.x);
|
|
let (hy, ly) = WireModel::split_ds(v.y);
|
|
let (hz, lz) = WireModel::split_ds(v.z);
|
|
// Grow the batch AABB by the glyph extent so a text-only block wire
|
|
// (no points) still finalizes to a bounded pick box.
|
|
if hx < entry.min_x {
|
|
entry.min_x = hx;
|
|
}
|
|
if hy < entry.min_y {
|
|
entry.min_y = hy;
|
|
}
|
|
if hx > entry.max_x {
|
|
entry.max_x = hx;
|
|
}
|
|
if hy > entry.max_y {
|
|
entry.max_y = hy;
|
|
}
|
|
entry.text_verts.push(crate::scene::pipeline::text_gpu::TextVertex {
|
|
pos: [hx, hy, hz],
|
|
pos_low: [lx, ly, lz],
|
|
uv: tv.uv,
|
|
color: [final_color[0], final_color[1], final_color[2], tv.color[3]],
|
|
draw_depth: tv.draw_depth,
|
|
});
|
|
}
|
|
}
|
|
|
|
fn transform_tangent(
|
|
tg: &TangentGeom,
|
|
t: &Transform,
|
|
) -> TangentGeom {
|
|
match tg {
|
|
TangentGeom::Line { p1, p2 } => {
|
|
let q1 = t.apply(Vector3::new(
|
|
p1[0] as f64,
|
|
p1[1] as f64,
|
|
p1[2] as f64,
|
|
));
|
|
let q2 = t.apply(Vector3::new(
|
|
p2[0] as f64,
|
|
p2[1] as f64,
|
|
p2[2] as f64,
|
|
));
|
|
TangentGeom::Line {
|
|
p1: [(q1.x) as f32, (q1.y) as f32, (q1.z) as f32],
|
|
p2: [(q2.x) as f32, (q2.y) as f32, (q2.z) as f32],
|
|
}
|
|
}
|
|
TangentGeom::Circle { center, radius } => {
|
|
let c = t.apply(Vector3::new(
|
|
center[0] as f64,
|
|
center[1] as f64,
|
|
center[2] as f64,
|
|
));
|
|
let m = &t.matrix.m;
|
|
let sx = ((m[0][0] * m[0][0] + m[0][1] * m[0][1] + m[0][2] * m[0][2]) as f64).sqrt();
|
|
let sy = ((m[1][0] * m[1][0] + m[1][1] * m[1][1] + m[1][2] * m[1][2]) as f64).sqrt();
|
|
let s = ((sx + sy) * 0.5) as f32;
|
|
TangentGeom::Circle {
|
|
center: [(c.x) as f32, (c.y) as f32, (c.z) as f32],
|
|
radius: radius * s,
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Radius / coordinate cap above which adaptive curve tessellation will
|
|
/// allocate hundreds of millions of points. `parameter_division` samples
|
|
/// to a fixed chord tolerance, so a Circle of radius 1e10 already produces
|
|
/// tens of millions of points.
|
|
const SANE_EXTENT: f64 = 1.0e8;
|
|
|
|
fn is_unreasonable_extent(e: &EntityType) -> bool {
|
|
// Adaptive curve tessellation also explodes on degenerate primitives
|
|
// (radius = 0, axes of length 0): `parameter_division` allocates
|
|
// proportional to range/tolerance, which underflows when the curve
|
|
// collapses to a point. Drop both ends of the spectrum.
|
|
match e {
|
|
EntityType::Circle(c) => c.radius.abs() < 1.0e-9 || c.radius.abs() > SANE_EXTENT,
|
|
EntityType::Arc(a) => a.radius.abs() < 1.0e-9 || a.radius.abs() > SANE_EXTENT,
|
|
EntityType::Ellipse(el) => {
|
|
let mx = el.major_axis.x.abs() + el.major_axis.y.abs() + el.major_axis.z.abs();
|
|
mx < 1.0e-9
|
|
|| el.major_axis.x.abs() > SANE_EXTENT
|
|
|| el.major_axis.y.abs() > SANE_EXTENT
|
|
|| el.major_axis.z.abs() > SANE_EXTENT
|
|
}
|
|
_ => false,
|
|
}
|
|
}
|
|
|
|
fn array_offsets(ins: &acadrust::entities::Insert) -> Vec<[f64; 3]> {
|
|
if !ins.is_minsert() {
|
|
return vec![[0.0; 3]];
|
|
}
|
|
let mut offsets = Vec::with_capacity(ins.instance_count());
|
|
for row in 0..ins.row_count {
|
|
for col in 0..ins.column_count {
|
|
offsets.push([
|
|
col as f64 * ins.column_spacing,
|
|
row as f64 * ins.row_spacing,
|
|
0.0,
|
|
]);
|
|
}
|
|
}
|
|
offsets
|
|
}
|
|
|