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refactor(wire): add WireModel.points_low parallel buffer (empty default)

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Foundation for double-single positions: WireModel now carries an
index-paired f32 residual buffer (`points_low`) next to the existing
`points` high half. Empty means "all-zero residual", so every existing
constructor (interactive draw, previews) is unchanged in behaviour;
tessellation from CAD f64 will fill it in the next steps so vertex
precision survives at UTM-scale coordinates.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-06-23 17:08:54 +03:00
commit 97d6993768
39 changed files with 72 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

1
src/scene/cache/block_cache.rs vendored
View file

@ -1106,6 +1106,7 @@ impl Batches {
WireModel {
name: name.to_string(),
points: b.points,
points_low: Vec::new(),
color,
selected,
pattern_length: b.pattern_length,

8
src/scene/convert/tessellate.rs
View file

@ -169,6 +169,7 @@ pub fn tessellate(
return vec![WireModel {
name,
points: Vec::new(),
points_low: Vec::new(),
color,
selected,
pattern_length: 0.0,
@ -207,6 +208,7 @@ pub fn tessellate(
out.push(WireModel {
name: name.clone(),
points: pts,
points_low: Vec::new(),
color: wire_color,
selected,
pattern_length: 0.0,
@ -248,6 +250,7 @@ pub fn tessellate(
[x, y - s, z],
[x, y + s, z],
],
points_low: Vec::new(),
color,
selected,
pattern_length: 0.0,
@ -279,6 +282,7 @@ pub fn tessellate(
return vec![WireModel {
name,
points,
points_low: Vec::new(),
color,
selected,
pattern_length,
@ -308,6 +312,7 @@ pub fn tessellate(
return vec![WireModel {
name,
points,
points_low: Vec::new(),
color,
selected,
pattern_length,
@ -355,6 +360,7 @@ pub fn tessellate(
return vec![WireModel {
name,
points: local_pts,
points_low: Vec::new(),
color,
selected,
pattern_length: 0.0,
@ -392,6 +398,7 @@ pub fn tessellate(
return vec![WireModel {
name,
points: local_pts,
points_low: Vec::new(),
color,
selected,
pattern_length,
@ -432,6 +439,7 @@ pub fn tessellate(
vec![WireModel {
name,
points,
points_low: Vec::new(),
color,
selected,
aci: 0,

5
src/scene/mod.rs
View file

@ -8196,6 +8196,7 @@ fn tessellate_entity(
let marker = WireModel {
name: h.value().to_string(),
points: vec![],
points_low: Vec::new(),
color: entity_color,
selected: sel,
aci: 0,
@ -8407,6 +8408,7 @@ fn tessellate_entity(
return vec![WireModel {
name: h.value().to_string(),
points: pts,
points_low: Vec::new(),
color: entity_color,
selected: sel,
aci,
@ -8444,6 +8446,7 @@ fn tessellate_entity(
return vec![WireModel {
name: h.value().to_string(),
points: vec![],
points_low: Vec::new(),
color: fill_color,
selected: sel,
aci,
@ -8552,6 +8555,7 @@ fn lod_stub_wire(
// different elevation. 2D entities (text fallbacks) pass
// z_min = z_max = 0 to keep the historical behaviour.
points: vec![[ax, ay, z_min], [bx, by, z_max]],
points_low: Vec::new(),
color: stored_color,
selected,
aci,
@ -8607,6 +8611,7 @@ fn lod_stub_wire_3d(
WireModel {
name,
points,
points_low: Vec::new(),
color: stored_color,
selected,
aci,

10
src/scene/model/wire_model.rs
View file

@ -34,8 +34,14 @@ pub enum TangentGeom {
pub struct WireModel {
/// Unique identifier — the handle value as a decimal string.
pub name: String,
/// Ordered world-space positions forming a strip of quads.
/// Ordered world-space positions forming a strip of quads. Each entry is
/// the "high" half of a double-single f32 pair; [`points_low`] carries the
/// matching residual so the shader can reconstruct the f64 source.
pub points: Vec<[f32; 3]>,
/// Low-bit residual paired index-for-index with [`points`]. Empty means
/// "all-zero residual" (interactive draw / preview wires whose coordinates
/// don't need sub-f32 precision). Tessellation from CAD f64 fills it.
pub points_low: Vec<[f32; 3]>,
/// RGBA colour in [0, 1].
pub color: [f32; 4],
/// Whether this wire is currently selected.
@ -94,6 +100,7 @@ impl WireModel {
Self {
name,
points,
points_low: Vec::new(),
color,
selected,
aci: 0,
@ -216,6 +223,7 @@ impl Default for WireModel {
Self {
name: String::new(),
points: Vec::new(),
points_low: Vec::new(),
color: Self::WHITE,
selected: false,
pattern_length: 0.0,

1
src/scene/text/complex_lt.rs
View file

@ -210,6 +210,7 @@ pub fn apply_along(
.map(|pts| WireModel {
name: name.to_string(),
points: pts,
points_low: Vec::new(),
color,
selected,
pattern_length: 0.0,