1 files changed, 46 insertions, 0 deletions
diff --git a/public/bluebey-studio/src/styles.js b/public/bluebey-studio/src/styles.js
index d7bd7b9..1b6a08d 100644
--- a/public/bluebey-studio/src/styles.js
+++ b/public/bluebey-studio/src/styles.js
@@ -183,6 +183,52 @@ export class Styles {
     return hulls;
   }
 
+  /**
+   * Register a mesh that is built at runtime (a hat), so it follows the render
+   * styles and gets an outline hull like the GLB parts. `removeMesh` undoes it.
+   */
+  addMesh(mesh) {
+    if (!mesh || this.originals.has(mesh)) return;
+    this.originals.set(mesh, mesh.material);
+    this.meshes.push(mesh);
+    const kind = this.kindOf(mesh);
+    if (!OUTLINE_SKIP.has(kind)) {
+      const overlay = OUTLINE_SILHOUETTE_ONLY.has(kind);
+      const hull = new THREE.Mesh(mesh.geometry, this.hullMaterialFor(this.scaleFor(kind), overlay));
+      hull.name = `${mesh.name || 'mesh'}:outline`;
+      hull.position.copy(mesh.position);
+      hull.quaternion.copy(mesh.quaternion);
+      hull.scale.copy(mesh.scale);
+      hull.frustumCulled = false;
+      hull.castShadow = false;
+      hull.receiveShadow = false;
+      if (overlay) hull.renderOrder = -1;
+      hull.userData.kind = kind;
+      hull.userData.source = mesh;
+      hull.userData.lineOnly = OUTLINE_LINE_ONLY.has(kind);
+      hull.userData.shadedOnly = OUTLINE_SHADED_ONLY.has(kind);
+      mesh.parent?.add(hull);
+      this.outlineMeshes.push(hull);
+      mesh.userData.hull = hull;
+    }
+    this.setStyle(this.style);
+  }
+
+  /** Take a runtime mesh (and its outline hull) back out. */
+  removeMesh(mesh) {
+    if (!mesh || !this.originals.has(mesh)) return;
+    const hull = mesh.userData.hull;
+    if (hull) {
+      hull.removeFromParent();
+      const i = this.outlineMeshes.indexOf(hull);
+      if (i >= 0) this.outlineMeshes.splice(i, 1);
+      delete mesh.userData.hull;
+    }
+    this.originals.delete(mesh);
+    const j = this.meshes.indexOf(mesh);
+    if (j >= 0) this.meshes.splice(j, 1);
+  }
+
   /** The outline factor for a part in the current style (line art wants more). */
   scaleFor(kind) {
     const line = LINE_STYLES.has(this.style);