07.6 - Edit Poly Modifier - Converting Selection
🔹 Converting Selections Between Sub-Objects 🔹
Now that we understand sub-object selection modes (Vertex, Edge, Border, Polygon, Element), let’s look at how to convert a selection between them efficiently.
1️⃣ Converting Selections Between Modes
When modeling, you often need to switch between polygons, edges, and vertices. Instead of manually reselecting, you can convert selections automatically:
| Conversion | Shortcut | Effect |
| Polygon → Vertex | Ctrl + Click Vertex | Selects all vertices touching selected polygons. |
| Polygon → Edge | Ctrl + Click Edge | Selects all bordering & internal edges of the selected polygons. |
| Edge → Vertex | Ctrl + Click Vertex | Selects all vertices of the selected edges. |
| Edge → Polygon | Ctrl + Click Polygon | Selects all polygons that contain the selected edges. |
| Vertex → Edge | Ctrl + Click Edge | Selects all edges connecting the selected vertices. |
| Vertex → Polygon | Ctrl + Click Polygon | Selects all polygons using the selected vertices. |
2️⃣ Advanced Selection Conversions
| Conversion | Shortcut | Effect |
| Bordering Edges Only | Shift + Click Edge | Selects only the external edges of a polygon selection (no internal edges). |
| Internal Edges Only | Ctrl + Shift + Click Edge | Selects only the inner edges (no borders). |
| Bordering Vertices Only | Shift + Click Vertex | Selects only the outermost vertices of the polygon selection. |
| Internal Vertices Only | Ctrl + Shift + Click Vertex | Selects only vertices inside the polygon selection (ignores edges). |
3️⃣ Best Practices for Selection Conversion
✅ Quickly refine selections when switching between modeling operations.
✅ Use Ctrl + Click for general selection conversions.
✅ Use Shift + Click for border-only selections.
✅ Use Ctrl + Shift + Click to isolate internal elements.
✅ Combine with grow/shrink selections for precise control.