forked from 1b-agent/opencadstudio-upstream
Hakan Seven
96be8214f9
Route curve, hatch, sweep, loft, surface, edge, and isoline tessellation through the shared kernel policy.
39 lines
1.6 KiB
Rust
39 lines
1.6 KiB
Rust
// Shared helpers used by per-entity tessellation impls in `crate::entities`
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// and the dispatcher in `crate::scene::convert::tessellate`.
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//
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// Cross-entity rendering helpers live here.
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use acadrust::types::Color as AcadColor;
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use glam::Vec3;
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use crate::scene::model::wire_model::{SnapHint, TangentGeom, WireModel};
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/// Output of the fallback per-entity geometry path used by entities not
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/// covered by the render conversion pipeline (Viewport, Insert, Hatch
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/// outline, Ole2Frame). Tuple form preserved to avoid touching every
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/// callsite when the dispatcher wraps these into a WireModel.
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///
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/// Layout: `(points, snap_pts, tangent_geoms, key_vertices)`.
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///
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/// `points` are ABSOLUTE world coordinates in f64 — the dispatcher splits them
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/// into the double-single high/low pair the relative-to-eye renderer needs, so
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/// fallback outlines (hatch boundary, viewport/insert/ole2frame frames) stay
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/// glued to their fills at UTM scale instead of quantizing ~0.5 m in f32.
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pub type FallbackGeometry = (
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Vec<[f64; 3]>,
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Vec<(Vec3, SnapHint)>,
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Vec<TangentGeom>,
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Vec<[f64; 3]>,
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);
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// ── Colour helper ──────────────────────────────────────────────────────────
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/// Convert an acadrust Color (ACI index or true-color) to a GPU RGBA value.
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pub fn aci_to_rgba(color: &AcadColor) -> [f32; 4] {
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if let Some((r, g, b)) = color.rgb() {
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[r as f32 / 255.0, g as f32 / 255.0, b as f32 / 255.0, 1.0]
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} else {
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WireModel::WHITE
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}
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}
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