Merge pull request #7852 from dotCooCoo/feat/3d-panel-export-3d-object

3D and Materials: Export 3D Object adds the selection to Asset Export

docs/effects-parity.md

@@ -183,7 +183,7 @@ VectorCraft choices; an original approximation, never compared with another appl
 | Materials panel, lighting, ray-traced render | Window › 3D and Materials panel with the object types (Plane, Extrude, Revolve, Inflate) and the Object, Rotation and Lighting settings of the applied effect, Render Settings › Wireframe, which draws the live effect as the edges of its faces, and Quick Actions › Expand as Wireframes ([three-d.md](three-d.md#3d-and-materials-panel)); one to ten directional lights with per-light Color (opaque RGB, white by default), Intensity, Rotation, Height, Softness and neutral Ambient Light, Revolve and colored Inflate use smooth vector shading; Extrude & Bevel and Rotate retain planar shading; original Standard, Diffuse, Top Left and Right lighting rigs; hard-edged shadows behind or below the object from the first light ([three-d.md](three-d.md#shadows)); the Materials tab's Graphics, document symbols mapped onto Extrude & Bevel's caps and onto a plane, moved with an artboard handle, and wrapped around Revolve's side ([three-d.md](three-d.md#graphics)); no base materials, graphics on Inflate or on Extrude & Bevel's walls and bevels, soft shadows or ray tracing |
 | 3D (Classic): Extrude & Bevel, Revolve, Rotate | Extrude & Bevel (Classic) initial: live, round seam joins, Extrude Depth, Cap, five original bevel shapes with Height and Bevel Extent In or Out, Position presets and rotation gizmo, Perspective, Wireframe, No Shading, Diffuse and Plastic surfaces with one to ten lights, Light Intensity, Ambient Light, Highlight Intensity and Size, Blend Steps, Black, Custom or no Shading Color, Draw Hidden Faces ([create 3D objects](https://helpx.adobe.com/illustrator/desktop/special-effects-styles/create-3d-graphics/create-3d-objects.html)); Revolve (Classic) initial: live, round seam joins, Angle, Cap, Offset from the left or right edge, Position presets and rotation gizmo, Perspective, the same four surfaces, lights, highlight, Blend Steps and Shading Color, groups and layers revolved about one shared axis (same page); Rotate (Classic) initial: live, round seam joins, every fill and stroke turned as one plane, Position presets and rotation gizmo, Perspective, No Shading and Diffuse surfaces with lights, Ambient Light, Blend Steps and Shading Color ([rotate objects in 3D](https://helpx.adobe.com/illustrator/desktop/special-effects-styles/create-3d-graphics/rotate-objects-in-3d.html)); Preserve Spot Colors in all three, unavailable with a Custom Shading Color ([Preserve Spot Color](https://help.adobe.com/archive/en_US/illustrator/cs5/illustrator_cs5_help.pdf#page=260)); all three: the track cube (face, edge, Shift and ring drags, keyboard steps; [three-d.md](three-d.md#track-cube)); Map Art: none |
 | Turntable (30.0 beta) | none |
-| Export 3D objects (OBJ, USDA, glTF) | initial: Asset Export's Export 3D Object collects an object with Extrude & Bevel, Revolve, Inflate or Rotate as a 3D asset, and Export writes its solids as a USDA (the default), USDZ, glTF or OBJ mesh with a material in each solid's paint color (`assets.add3D`, `assets.set3DFormat`, `assets.export3D`); no textures, map art or shading ([3D export help](https://helpx.adobe.com/illustrator/desktop/special-effects-styles/create-3d-graphics/export-3d-vector-artwork.html)) |
+| Export 3D objects (OBJ, USDA, glTF) | initial: Asset Export's Export 3D Object, and the 3D and Materials panel's Export 3D Object button (which then shows Asset Export with the new assets selected, [three-d.md](three-d.md#3d-and-materials-panel)), collect an object with Extrude & Bevel, Revolve, Inflate or Rotate as a 3D asset, and Export writes its solids as a USDA (the default), USDZ, glTF or OBJ mesh with a material in each solid's paint color (`assets.add3D`, `assets.set3DFormat`, `assets.export3D`); no textures, map art or shading ([3D export help](https://helpx.adobe.com/illustrator/desktop/special-effects-styles/create-3d-graphics/export-3d-vector-artwork.html)) |
 
 The `three-d` crate (depends on `geom` and `pathops`, with no UI or GPU dependencies) builds, rotates, projects, shades and depth-sorts the surfaces;
 the effects crate turns them into art. What's left (materials and shadows, ray-traced rendering,

docs/mcp.md

@@ -8567,7 +8567,9 @@ becomes an asset (or one asset with `multiple: false`).
 
 ### 3D assets
 
-Asset Export's menu item Export 3D Object (`assets.add3D {ids?, format?}`) collects each selected object (or `ids`)
+Asset Export's menu item Export 3D Object and the 3D and Materials panel's Export 3D Object button
+(`assets.add3D {ids?, format?}`; the button passes the ids of the selected objects that have a 3D effect and then shows
+the Asset Export panel, [three-d.md](three-d.md#3d-and-materials-panel)) collect each selected object (or `ids`)
 that carries Extrude & Bevel, Revolve, Inflate or Rotate as a 3D asset, named after the object; an object already
 collected as a 3D asset keeps it, and an object without such an effect is refused. A 3D asset's Format is `usda` (the
 default), `usdz`, `gltf` or `obj`; the panel shows a Format row for the 3D assets it would export, and

docs/target-app-parity.md

@@ -597,6 +597,7 @@ since 2026-10-01.
 - Window › 3D and Materials panel: `crates/ui-egui/src/panels/three_d.rs` applies a 3D effect by object type (Plane, Extrude, Revolve, Inflate), changes an applied one in place (`effect.setParams` `threeDType`) and edits it with the options dialog's Object, Rotation and Lighting controls, one undo step per change; `crates/engine/src/cmd/effectcmd/three_d_type_tests.rs` and `crates/ui-egui/src/panels/tests_three_d.rs` cover it. No Materials tab.
 - 3D and Materials › Quick Actions › Expand as Wireframes (#6354): `effect.expandAsWireframes` replaces each selected 3D object with a group of 0.5 pt black stroked paths, the edges of the faces its effect draws, each edge once and joined end to end, curves kept, in one undo step ([three-d.md](three-d.md#3d-and-materials-panel)); `crates/effects/src/solids/wireframe/tests.rs`, `crates/engine/src/cmd/wireframe/tests.rs` and `crates/ui-egui/src/panels/tests_three_d.rs` cover it. Scores and hours unchanged.
 - 3D and Materials › Render Settings › Wireframe: `render: {mode: "wireframe"}` on Extrude & Bevel, Revolve, Inflate and Rotate draws the live effect as the edges of its faces, 0.5 pt black strokes with no shadow, in every output and in Expand Appearance ([three-d.md](three-d.md#3d-and-materials-panel)); `crates/effects/src/solids/wireframe/tests.rs` and `crates/ui-egui/src/panels/tests_three_d.rs` cover it. Scores and hours unchanged.
+- 3D and Materials › Export 3D Object: the panel's button adds the selected objects that have a 3D effect to Asset Export as 3D assets (`assets.add3D`), one undo step and none when each is an asset already, selects their assets and shows the Asset Export panel ([three-d.md](three-d.md#3d-and-materials-panel)); `panels::three_d::tests::{export_3d_object_adds_the_selected_3d_objects_to_asset_export, export_3d_object_leaves_out_a_3d_object_inside_another}` cover it. Scores and hours unchanged.
 - 3D effects on clipping groups, blends and symbol instances (#6140, #5725): every 3D type builds from the art the object shows (the art inside the clipping path, the blend's keys and steps, the symbol's art where the instance places it), alone or in a group, on the canvas, in exports, Object › Rasterize and `assets.add3D`; an image is refused with a pointer to Object › Image Trace › Make. `crates/effects/src/solids/tests_sources.rs`, `crates/engine/src/cmd/effectcmd/three_d_source_tests.rs` and `fx::tests::a_symbol_instance_a_blend_and_a_clipping_group_draw_their_solids` cover it. Scores and estimates unchanged.
 - 3D effects, images a clip hides: an image in a clipping group is left out of the solid when its transformed frame lies wholly outside the area every clipping path around it fills together, holes included, instead of when only the boxes miss; an image the clips show part of is still refused ([the help page](https://helpx.adobe.com/illustrator/using/clipping-masks.html) on clipping paths hiding everything outside their shape; the omission rule is VectorCraft's own). `solids::tests_sources::an_image_inside_a_clips_box_but_outside_its_shape_is_left_out` covers it. Scores and estimates unchanged.
 

docs/three-d.md

@@ -79,6 +79,16 @@ pages describe it.
   own choice. The group keeps the object's place, id, name, opacity, blending mode, opacity mask, attributes
   and text wrap and is selected; objects without a visible 3D effect do not change. It is one undo step, and an error changes nothing
   when no selected object has a visible 3D effect.
+- **Export 3D Object** is a button in the panel, as the public
+  [Export 3D vector artwork](https://helpx.adobe.com/illustrator/desktop/special-effects-styles/create-3d-graphics/export-3d-vector-artwork.html)
+  page describes; VectorCraft places it at the bottom of the panel. It adds each selected object that has a visible
+  3D effect to Asset Export as a 3D asset, the same as
+  Asset Export's own Export 3D Object (`assets.add3D` with those objects' ids), selects their assets in the Asset
+  Export panel and shows that panel, where the Format row and Export write the mesh files
+  ([3D assets in mcp.md](mcp.md#3d-assets)). Selected objects without a visible 3D effect are left out, and so is
+  a 3D object inside another selected 3D object, whose asset holds it. The button is unavailable while no selected
+  object has a visible 3D effect. Adding the assets is one undo step; when every one of the objects is an asset already, nothing is
+  recorded and their assets are selected again.
 - The Lighting tab also holds the Shadows switch and its settings ([Shadows](#shadows)). The Materials tab holds
   the Graphics ([Graphics](#graphics)); base materials and ray-traced rendering are not built (see below). The
   rotation and light rings on the artboard are part of the options dialog only. The panel's Lighting tab has the