In this session, we are going to model the interior and exterior decorations, including ceilings, interior painting, tiles, floor finishes, and eaves. We have already prepared the types of these materials and elements in the project so that we can use them directly. In practice, interior decorations are constructed from top to bottom of the space in a floor, so ceilings usually come first. Here we also follow the same sequence. Let us start from the ceilings in the basement. We can use the “Paint” tool to paint the ceilings in the basement with the “1:3 mortar monolithic finish_emulsion paint.” It is recommended to use the “Paint” tool in the 3D view so that we can see every surface easier by rotating the model. Switch to the 3D view and adjust the section box until we can clearly see the ceilings in the basement. Under the “Modify” tab, select the “Paint” tool. In the “Material Browser” window, select “1:3 mortar_monolithic finish_emulsion paint.” Then click on the surface of the ceilings to paint on it. Now please follow the same procedure to paint all the ceilings in the basement. To avoid missing out any surfaces for painting, remember to move around in the 3D view to check the results. Now, let us move on to the first floor. Most ceilings on the first floor are also painted with “1:3 mortar monolithic finish_emulsion paint.” But for the kitchens and bathrooms, there are dropped ceilings below their main ceilings, so we should use the “Ceiling” tool to create the dropped ceilings. First of all, open the “1F” plan view and switch “View Templates” to “Architectural Plans.” Then, in the “Properties” palette, under the “Underlay” category, select “None” in “Range: Base Level.” Since the ceiling elements we are going to create may be out of the view range of this plan view, let us modify the settings. Under the “Extents” category, click the “Edit” button of “View Range.” In the “Primary Range” box, modify the “Offset” value of “Top” to 290 cm and the “Offset” value of “Cut Plane” to 280 cm. Then click on “OK." Select the “Ceiling” tool under the “Architecture” tab. Then in the “Properties” palette, select “Composite Ceiling: Waterproof Plastic Slat Ceiling.” Set the “Height Offset From Level” to 260 cm. Then under the “Modify|Place Ceiling” tab, select “Sketch Ceiling.” Now we can sketch the boundaries of the dropped ceiling. Click the green check icon to finish editing the ceiling. In the first floor, there are seven dropped ceilings. We should create them individually because creating a ceiling that crosses multiple rooms may result in errors in quantity takeoff. Next, let us decorate the interior walls. We will use two approaches for the decorations on the interior walls. The first one is using the “Paint” tool, and the other one is creating a thin wall element attached to an interior wall. Under the “Modify” tab, select the “Paint” tool. Then select the material named “1:3 mortar_monolithic finish_emulsion paint.” Then click on all the surfaces that we want to paint. However, sometimes a wall is shared by two rooms, so we might need to paint differently on one surface. In this situation, we may use the “Split Face” tool to split the wall into two elements. In this example, two walls need to be split. The first one is the wall for the elevator shaft and the stair tower. We need to paint the part for stair tower but not the part for the elevator. Now, let us split the wall. Open the “1F” plan view. Under the “View” tab, select the “Section” tool. Let us build up a section view; therefore we can have a better view of this wall. Double click the section view element to enter the view. Next, under the “Modify” tab, click the “Split Face” tool. Select the wall that we want to split and draw a line between the elevator shaft and the stair tower. Click the green check icon to complete the task. Then we can paint the wall for the stair tower. Another wall that needs to be split is located in the room beside the elevator shaft. This wall is shared by the outdoor and indoor spaces, and it needs to be painted with two different materials. Let us repeat the process for splitting and painting the wall. How about splitting the face of a column? The “Split” tool can be used to split the walls; however, it does not work for columns. Let us use another approach to achieve it. We may attach a thin wall on the face of a column first and then paint the thin wall with material needed. Let us take the column located at the northwest corner for example. The part inside the building needs to be painted with “1:3 mortar_monolithic finish_emulsion paint,” while the rest part outside the building needs to be painted with “rectangular tile.” Let us create two thin walls first. Then, we paint on the surface of the wall inside the building. Next, we move on to the walls in the entrance hall, the bathrooms, and the kitchens. The walls in these rooms are decorated with tiles and marble, and the thickness of tiles and marble will change the interior dimensions of the rooms, so we should use materials with thickness to model the tiles and marble. Let us use wall elements to implement the decorations. Switch to the “1F” plan view. Then apply “Floor Plans” for “View Templates.” Under the “Architecture” tab, click the “Wall” drop-down and select “Wall: Architectural.” In the type selector, we have prepared the wall types needed for decoration, so let us just select the type of “Basic wall: Tile.” Set the “Base Constraint” to “1F,” the “Top Constraint” to “Unconnected,” and “Unconnected Height” to 260 cm. Now, let us create the thin walls. In some cases, as you can see, doors or windows are blocked by the decorative walls we just created. We may solve this problem by applying the “Join” tool. Under the “Modify” tab, select the “Join” tool. Then select the two side-by-side walls, respectively. By joining the walls, now they share the same openings at the same location. Ok, now please follow the same procedure to decorate the tiles in other bathrooms and kitchens by yourself. Now let us move on to the floors. Similar to the tiles in the bathrooms and kitchens, we should use materials with thickness to model the finishes on the floor. So, we will use floor elements as alternatives on floors. Let us get started from the basement. Open the “B1” plan view. Apply “Floor Plans” to “View Templates.” Then under the “Architecture” tab, in the “Floor” drop-down menu, select “Floor: Architectural.” Select the floor type of “1:3 mortar_monolithic finish” in the type selector. Under the “Dimensions,” we can see the default thickness of this floor type is 2 cm, so we need to set the “Height Offset From Level” to 2 cm. Now, we can start sketching the boundaries of the floor finish. Because the floor finish does not intersect with the structural frames, here we may just create a single floor finish covering the entire room. Let us take the floor in front of the elevator on the first floor as another example. You can choose the floor finish type you like. Here we choose marble to apply on the floor. Select the “Floor: Architectural” tool. In the type selector, select “Marble.” Because the thickness of “Marble” is 3 cm, we should adjust the “Height Offset From Level” to 3 cm. After setting up the parameters, we can create the marble floor finish. Now, please follow the same steps to finish the rest of floor finishes by yourself. For the exterior walls, because the thickness of tiles does not affect the space of other elements, we may use the “Paint” tool to model the tiles. The process of painting the exterior walls is the same as that of our painting the interior walls. We have two paint types for tiles on the exterior walls. They are “Rectangular Tile” and “Mosaic Tile.” Let us open the "South Elevation" view. On the right-hand side of the underlay, we can see the annotations denoting the tile types for each exterior wall. We paint the walls according to these annotations. Now let us go to the 3D view and start modeling the tiles on the exterior walls. Under the “Modify” tab, select the “Paint” tool. In the “Material Browser” pop-up window, select “Rectangular Tile.” Then click on the surfaces of the exterior walls to paint the tiles on them. Now please follow the same procedure to finish all the exterior tiles of the first floor by yourself. Next, we are going to create the eaves for the first floor. We will use floor elements as alternatives for the eaves. Open the “2F” plan view. Under the “Structure” tab, select the “Floor: Structural” tool. In the “Properties” palette, select “Eave-RC 25 cm.” Then under the “Modify/Create Floor Boundary” tab, select “Pick Lines,” and pick the boundaries of the eave on the underlay. At the intersection of two eaves, we may make a 45-degree angle for both of them so that they can match each other in shape. Click the green check icon to finish creating this eave. Also, we need to create a slope on its surface. Select the eave first. Under the “Modify/Floor” tab, select “Modify Sub Elements.” Then select the outer edge and input “-20” to modify its elevation. Now, please follow the same procedure to model the remaining eaves by yourself. When you finish, you should see the eaves like this.