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refactor: remove dead world_offset plumbing (RTE migration is complete)

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Now that geometry reaches the GPU/CPU as absolute coordinates via the
double-single relative-to-eye path, world_offset is always [0,0,0]. Strip
the parameter that was threaded through the whole tessellation / block-
expansion / fallback / camera-decode chain and the ExpandCtx field that
carried it — ~340 references across 20 files, all subtracting zero.

- truck_tess: to_local / to_local_low / tessellate_* drop the offset arg;
  to_local is now a pure double-single split.
- tessellate: offset_to_ds → points_to_ds (pure DS split); tessellate(),
  tessellate_entity(), fallback_geometry(), solid_wire_fallback(),
  entity_aabb(), expand_insert(), expand_block_meshes(), the dimension
  helpers (vec3_local, dimension_snap_pts, …), text_support, leader,
  multileader, image_model, xclip and camera_from_view all lose the param.
- block_cache: ExpandCtx loses its world_offset field.
- Remove the now-dead offset_snap_pts and the unused set_grid_snap.

Behaviour is unchanged (the offset was zero everywhere); the compiler
verifies every call site.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan SevenandClaude Opus 4.8 committed 2026-06-24 18:35:02 +03:00
1 parent 02d40bd2ec
commit 56d507fd88
20 files changed
+190 -343
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src/scene/convert/tessellate.rs
+35 -48
View File
@@ -43,13 +43,12 @@ fn split_ds_xyz(x: f64, y: f64, z: f64) -> ([f32; 3], [f32; 3]) {
([xh, yh, zh], [xl, yl, zl])
}
/// Subtract `world_offset` from each f64 source point and split the residual
/// into double-single (high, low) f32 buffers in one pass.
fn offset_to_ds(
/// Split each absolute f64 source point into double-single (high, low) f32
/// buffers in one pass — the relative-to-eye residual the GPU/CPU reconstruct
/// to f64 precision at UTM-scale coordinates.
fn points_to_ds(
src: impl IntoIterator<Item = [f64; 3]>,
world_offset: [f64; 3],
) -> (Vec<[f32; 3]>, Vec<[f32; 3]>) {
let [ox, oy, oz] = world_offset;
let it = src.into_iter();
let (lo, hi) = it.size_hint();
let cap = hi.unwrap_or(lo);
@@ -62,7 +61,7 @@ fn offset_to_ds(
low.push([0.0; 3]);
continue;
}
let (h, l) = split_ds_xyz(x - ox, y - oy, z - oz);
let (h, l) = split_ds_xyz(x, y, z);
high.push(h);
low.push(l);
}
@@ -85,7 +84,6 @@ pub fn tessellate(
pattern_length: f32,
pattern: [f32; 8],
line_weight_px: f32,
world_offset: [f64; 3],
anno_scale: f32,
world_per_pixel: Option<f32>,
) -> Vec<WireModel> {
@@ -127,7 +125,6 @@ pub fn tessellate(
selected,
entity_color,
line_weight_px,
world_offset,
anno_scale,
)];
}
@@ -148,7 +145,7 @@ pub fn tessellate(
// single MTEXT can hand back N colour-distinct wires when the
// value mixes inline colours.
TruckObject::Text(stroke_groups) => {
let [ox, oy, oz] = world_offset;
let [ox, oy, oz] = [0.0_f64; 3];
let entity_zf = entity_z(entity) as f64;
let elev_v = entity_zf - oz;
@@ -212,7 +209,7 @@ pub fn tessellate(
}
}
let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
let snap_pts = te.snap_pts;
let key_vertices: Vec<[f64; 3]> = te
.key_vertices
.into_iter()
@@ -287,12 +284,12 @@ pub fn tessellate(
// ── Standard topology objects ─────────────────────────────────
TruckObject::Point(v) => {
let result = tessellate_vertex(&v, world_offset);
let result = tessellate_vertex(&v);
match result {
TruckTessResult::Point([x, y, z], [xl, yl, zl]) => {
let s = 0.1_f32;
let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
let [ox, oy, oz] = world_offset;
let snap_pts = te.snap_pts;
let [ox, oy, oz] = [0.0_f64; 3];
let key_vertices: Vec<[f64; 3]> = te
.key_vertices
.into_iter()
@@ -333,10 +330,10 @@ pub fn tessellate(
TruckObject::Curve(e) => {
if let TruckTessResult::Lines(points, points_low) =
tessellate_edge(&e, world_offset)
tessellate_edge(&e)
{
let [ox, oy, oz] = world_offset;
let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
let [ox, oy, oz] = [0.0_f64; 3];
let snap_pts = te.snap_pts;
let key_vertices: Vec<[f64; 3]> = te
.key_vertices
.into_iter()
@@ -366,10 +363,10 @@ pub fn tessellate(
TruckObject::Contour(w) => {
if let TruckTessResult::Lines(points, points_low) =
tessellate_wire(&w, world_offset)
tessellate_wire(&w)
{
let [ox, oy, oz] = world_offset;
let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
let [ox, oy, oz] = [0.0_f64; 3];
let snap_pts = te.snap_pts;
let key_vertices: Vec<[f64; 3]> = te
.key_vertices
.into_iter()
@@ -404,15 +401,15 @@ pub fn tessellate(
// GPU shader pairs them so drawings at large UTM-style
// coordinates keep sub-unit precision in the wire model and
// don't jitter on camera movement.
let [ox, oy, oz] = world_offset;
let (local_pts, local_pts_low) = offset_to_ds(points, world_offset);
let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
let [ox, oy, oz] = [0.0_f64; 3];
let (local_pts, local_pts_low) = points_to_ds(points);
let snap_pts = te.snap_pts;
let key_vertices: Vec<[f64; 3]> = te
.key_vertices
.into_iter()
.map(|[x, y, z]| [x - ox, y - oy, z - oz])
.collect();
let (fill_tris, fill_tris_low) = offset_to_ds(te.fill_tris, world_offset);
let (fill_tris, fill_tris_low) = points_to_ds(te.fill_tris);
return vec![WireModel {
name,
points: local_pts,
@@ -435,9 +432,9 @@ pub fn tessellate(
}
TruckObject::SegmentedLines(points) => {
let [ox, oy, oz] = world_offset;
let (local_pts, local_pts_low) = offset_to_ds(points, world_offset);
let snap_pts = offset_snap_pts(te.snap_pts, world_offset);
let [ox, oy, oz] = [0.0_f64; 3];
let (local_pts, local_pts_low) = points_to_ds(points);
let snap_pts = te.snap_pts;
let key_vertices: Vec<[f64; 3]> = te
.key_vertices
.into_iter()
@@ -470,10 +467,10 @@ pub fn tessellate(
// edge wires stored in the entity when present (e.g. from
// SOLVIEW output or when the SAT kernel cannot parse the
// ACIS data).
let wire_pts = solid_wire_fallback(entity, world_offset);
let wire_pts = solid_wire_fallback(entity);
let mut wm = WireModel::solid_f64(name, wire_pts, color, selected);
// Add insertion snap at point_of_reference.
let [ox, oy, oz] = world_offset;
let [ox, oy, oz] = [0.0_f64; 3];
if let Some(p) = crate::entities::solid3d::point_of_reference(entity) {
let sp = glam::DVec3::new(p.x - ox, p.y - oy, p.z - oz);
wm.snap_pts.push((sp, SnapHint::Insertion));
@@ -485,7 +482,7 @@ pub fn tessellate(
// ── Fallback for Viewport / Insert / Hatch / Ole2Frame ────────────────
let (points_f64, snap_pts, tangent_geoms, key_vertices) =
fallback_geometry(entity, world_offset);
fallback_geometry(entity);
// `points_f64` are absolute world coords; split into the double-single
// high/low pair so the outline reconstructs to f64 precision at UTM scale
// (a NaN separator stays NaN in both buffers).
@@ -691,12 +688,12 @@ pub(crate) fn entity_z(entity: &EntityType) -> f32 {
use crate::entities::traits::FallbackTess;
use crate::scene::convert::tess_util::FallbackGeometry as Geometry;
fn fallback_geometry(entity: &EntityType, world_offset: [f64; 3]) -> Geometry {
fn fallback_geometry(entity: &EntityType) -> Geometry {
match entity {
EntityType::Viewport(vp) => vp.fallback_geometry(world_offset),
EntityType::Insert(ins) => ins.fallback_geometry(world_offset),
EntityType::Hatch(h) => h.fallback_geometry(world_offset),
EntityType::Ole2Frame(ole) => ole.fallback_geometry(world_offset),
EntityType::Viewport(vp) => vp.fallback_geometry(),
EntityType::Insert(ins) => ins.fallback_geometry(),
EntityType::Hatch(h) => h.fallback_geometry(),
EntityType::Ole2Frame(ole) => ole.fallback_geometry(),
// Modeler solids render as meshes (solid3d_tess). Their wire path
// contributes only the pre-computed edge wires (empty for binary SAB)
// plus an insertion snap — never the placeholder segment below, which
@@ -706,10 +703,10 @@ fn fallback_geometry(entity: &EntityType, world_offset: [f64; 3]) -> Geometry {
| EntityType::Region(_)
| EntityType::Body(_)
| EntityType::Surface(_) => {
let pts = solid_wire_fallback(entity, world_offset);
let pts = solid_wire_fallback(entity);
let mut snap = vec![];
if let Some(p) = crate::entities::solid3d::point_of_reference(entity) {
let [ox, oy, oz] = world_offset;
let [ox, oy, oz] = [0.0_f64; 3];
snap.push((
Vec3::new((p.x - ox) as f32, (p.y - oy) as f32, (p.z - oz) as f32),
SnapHint::Insertion,
@@ -729,8 +726,8 @@ fn fallback_geometry(entity: &EntityType, world_offset: [f64; 3]) -> Geometry {
/// AutoCAD stores explicit wire geometry (from SOLVIEW / 3DPLOT) alongside the
/// ACIS data. We use this as a visible fallback when the SAT tessellator
/// produces no mesh (e.g. binary SAB data or unsupported geometry).
fn solid_wire_fallback(entity: &EntityType, world_offset: [f64; 3]) -> Vec<[f64; 3]> {
let [ox, oy, oz] = world_offset;
fn solid_wire_fallback(entity: &EntityType) -> Vec<[f64; 3]> {
let [ox, oy, oz] = [0.0_f64; 3];
let Some(wires) = crate::entities::solid3d::fallback_wires(entity) else {
return vec![];
};
@@ -878,16 +875,6 @@ pub(crate) fn add_polyline(points: &mut Vec<[f32; 3]>, polyline: &[Vec3]) {
points.extend(polyline.iter().map(|p| [p.x, p.y, p.z]));
}
pub(crate) fn offset_snap_pts(
pts: Vec<(glam::DVec3, SnapHint)>,
off: [f64; 3],
) -> Vec<(glam::DVec3, SnapHint)> {
let [ox, oy, oz] = off;
pts.into_iter()
.map(|(p, h)| (glam::DVec3::new(p.x - ox, p.y - oy, p.z - oz), h))
.collect()
}
/// Returns the text position of a dimension in DXF world-space (f64, no offset applied).
/// Used when building a synthetic Text entity so tessellate() can apply world_offset itself.
/// When the saved `text_middle_point` is zero (i.e. AutoCAD never wrote one),