A simple model of a gazebo with pillars.
Made with Blender.
The models should be available in the downloads tab, after which they can be directed onto the canvas.
The model should look like this in Clip Studio paint:





To build the basic structure, select all three models simultaneously in the downloads or 3-D tab, and drag them onto the canvas. Then, use either the arrows or coordinates to stack them on top of each other:

You could also stack the segment piece multiple times to create a taller structure (though be aware that increasing the amount polygons could affect performance):




Category 1