perf(render): instance block geometry

Share source buffers across block placements and render nested content with GPU instance transforms.\n\nChunk silhouettes and compact mesh material data so large drawings stay under device buffer limits and remain responsive.

src/modules/annotate/aligned_dim.rs

@@ -225,6 +225,7 @@ impl CadCommand for AlignedDimensionCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,
@@ -280,6 +281,7 @@ fn preview_aligned(p1: DVec3, p2: DVec3, dim_pt: DVec3) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/angular_dim.rs

@@ -166,6 +166,7 @@ fn preview_wire(points: Vec<Vec3>) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/diameter_dim.rs

@@ -197,6 +197,7 @@ fn preview_line(a: Vec3, b: Vec3) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/dim_baseline.rs

@@ -185,6 +185,7 @@ impl CadCommand for DimBaselineCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/dim_continue.rs

@@ -165,6 +165,7 @@ impl CadCommand for DimContinueCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/dimjogline.rs

@@ -91,6 +91,7 @@ impl CadCommand for DimJogLineCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/dimtedit.rs

@@ -108,6 +108,7 @@ impl CadCommand for DimTeditCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/leader_cmd.rs

@@ -261,6 +261,7 @@ fn preview_wire(pts: &[Vec3], arrow_size: f32) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/linear_dim.rs

@@ -242,6 +242,7 @@ fn preview_wire(points: Vec<DVec3>) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/mleader_cmd.rs

@@ -232,6 +232,7 @@ fn preview_wire(pts: &[Vec3], arrow_size: f32) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/mleader_edit.rs

@@ -467,6 +467,7 @@ fn preview_wire(pts: &[Vec3]) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/ordinate_dim.rs

@@ -142,6 +142,7 @@ fn preview_wire(points: Vec<Vec3>) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/qdim.rs

@@ -98,6 +98,7 @@ impl CadCommand for QdimCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/radius_dim.rs

@@ -202,6 +202,7 @@ fn preview_wire(points: Vec<Vec3>) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/table_cmd.rs

@@ -204,6 +204,7 @@ impl CadCommand for TableCommand {
                 depth_override: None,
                 fill_is_3d: false,
                 fill_is_2d_solid: false,
+                render_instance: None,
                 pick_tris: Vec::new(),
                 pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/annotate/tolerance_cmd.rs

@@ -108,6 +108,7 @@ impl CadCommand for ToleranceCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/draw/attdef.rs

@@ -206,6 +206,7 @@ impl CadCommand for AttdefCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/draw/hatch.rs

@@ -235,6 +235,7 @@ impl HatchCommand {
                 }]
             });
         HatchModel {
+            render_instance: None,
             boundary: std::sync::Arc::new(rel),
             pattern: HatchPattern::Pattern(families),
             name: pat_name.into(),
@@ -399,6 +400,7 @@ impl GradientCommand {
     fn make_hatch(&self, rings: Vec<Vec<[f64; 2]>>) -> HatchModel {
         let (rel, origin, wcs) = pack_rings(&rings);
         HatchModel {
+            render_instance: None,
             boundary: std::sync::Arc::new(rel),
             pattern: HatchPattern::Gradient {
                 angle_deg: 0.0,
@@ -614,6 +616,7 @@ impl CadCommand for BoundaryCommand {
                 // Store as a Hatch entity (solid fill) so it is selectable.
                 let (rel, origin, wcs) = pack_rings(&rings);
                 let model = HatchModel {
+                    render_instance: None,
                     boundary: std::sync::Arc::new(rel),
                     pattern: HatchPattern::Solid,
                     name: "SOLID".into(),

src/modules/draw/draw/mline.rs

@@ -186,6 +186,7 @@ impl CadCommand for MlineCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/draw/raster_image.rs

@@ -128,6 +128,7 @@ impl CadCommand for ImageCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/draw/ray.rs

@@ -90,6 +90,7 @@ impl CadCommand for RayCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,
@@ -189,6 +190,7 @@ impl CadCommand for XLineCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/draw/revcloud.rs

@@ -108,6 +108,7 @@ impl CadCommand for RevCloudCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/inquiry/area.rs

@@ -367,6 +367,7 @@ impl CadCommand for AreaCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/inquiry/dist.rs

@@ -90,6 +90,7 @@ impl CadCommand for DistCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/inquiry/measuregeom.rs

@@ -75,6 +75,7 @@ impl MeasureGeomCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/draw/modify/trim.rs

@@ -3713,6 +3713,7 @@ fn preview_wire(points: Vec<[f32; 3]>, color: [f32; 4], name: &str) -> WireModel
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
         dash_from_start: false,

src/modules/model/primitive_cmd.rs

@@ -516,6 +516,7 @@ fn wire(name: &str, points: Vec<[f32; 3]>) -> WireModel {
         depth_override: None,
         fill_is_3d: false,
         fill_is_2d_solid: false,
+        render_instance: None,
         pick_tris: Vec::new(),
         pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/view/plot_window.rs

@@ -59,6 +59,7 @@ impl CadCommand for PlotWindowCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,

src/modules/view/zoom_window.rs

@@ -78,6 +78,7 @@ impl CadCommand for ZoomWindowCommand {
             depth_override: None,
             fill_is_3d: false,
             fill_is_2d_solid: false,
+            render_instance: None,
             pick_tris: Vec::new(),
             pick_tris_low: Vec::new(),
             dash_from_start: false,