Fix zindex property not working on polysec component.

Assets/Cryville/Crtr/Components/MeshBase.cs

@@ -22,7 +22,9 @@ namespace Cryville.Crtr.Components {
 		}
 		protected void UpdateZIndex() {
 			if (!mesh.Initialized) return;
-			mesh.Renderer.material.renderQueue = _zindex;
+			foreach (var mat in mesh.Renderer.materials) {
+				mat.renderQueue = _zindex;
+			}
 		}
 	}
 }

Assets/Cryville/Crtr/Components/SectionalGameObject.cs

@@ -110,6 +110,7 @@ namespace Cryville.Crtr.Components {
 			if (body.FrameName != null) AddMat(materials, body.FrameName);
 			if (tail.FrameName != null) AddMat(materials, tail.FrameName);
 			mesh.Renderer.materials = materials.ToArray();
+			UpdateZIndex();
 		}
 
 		void AddMat(List<Material> list, string frame) {