Add object rendering toggle

project/code/TMV/Mission.cs

@@ -29,6 +29,8 @@ public partial class Mission : Node3D
 		}
 	}
 
+	private const string OBJECT_MODELS_GROUP = "ObjectModels";
+
 	[Export(PropertyHint.GlobalFile, "*.mis")]
 	public string FileName { get; set; }
 	[Export]
@@ -94,10 +96,14 @@ public partial class Mission : Node3D
 			{
 				Build = true;
 			}
-			if (keyEvent.Keycode == Key.O)
+			if (keyEvent.Keycode == Key.L)
 			{
 				ToggleLightmap();
 			}
+			if (keyEvent.Keycode == Key.O)
+			{
+				ToggleObjectRendering();
+			}
 		}
 	}
 
@@ -127,6 +133,17 @@ public partial class Mission : Node3D
 		}
 	}
 
+	public void ToggleObjectRendering()
+	{
+		// It might be "better" to use a parent node and just toggle that, but
+		// the performance of this is completely fine so we'll stick with it
+		foreach (var node in GetTree().GetNodesInGroup(OBJECT_MODELS_GROUP))
+		{
+			var node3d = node as Node3D;
+			node3d.Visible = !node3d.Visible;
+		}
+	}
+
 	public void ToggleLightmap()
 	{
 		if (_lmLayerMask == Vector2I.Zero)
@@ -309,6 +326,8 @@ public partial class Mission : Node3D
 					}
 				}
 
+				model.AddToGroup(OBJECT_MODELS_GROUP);
+
 				AddChild(model);
 			}
 		}