Balinese House in Watercolor painting

This is a sketch drawing of a varandah of a Balinese house. This is a watercolor painting of an outdoor view that I made during my stay in Bali.. Watercolor is one of the most difficult painting medias yet it was frequently used by architects to visualize their design concept to clients. Today there are a number of BIM softwares that can render a 3D model of a house or a big building.

The use of watercolor as a manual rendering tool is decreasing with the development of more sophisticated BIM software that can visualize design ideas in 3D and render them in more realistic views.

Balinese Architecture
I created the above drawing only as an artistic expression not for architectural purposes. But if you are really interested in Balinese style houses, please, related books on the internet both in Amazon and in Google Books.
Manual Drawing
However, the use of drawing pencils and watercolor painting are still being used by some designers due to their flexibility and ease of use particularly on models that have unique forms and complicated 3D curves that cannot easily be drawn in CAD software. Such curved models include wooden statues, carvings or relief on the legs of chairs and pillars of houses, or hull form of a ship. Although most of the BIM softwares can be used to create models in 3D environments, only CAD software with NURBS features that can visualize such complicated curved forms easily.
Sketchup
For architectural design, the most recommended software is Google Sketchup. Google has provided the free version of the software that can be downloaded from the official website of sketchup. In addition to the free edition, the Google Sketchup Pro 8 which can be obtained for 495 US dollars has got more features that designers and architects can use to model their design concepts in 3D environment. In version 8, Google introduced solid tools that greatly enhance Sketchup as a powerful BIM software. Google Sketchup can be used by naval architects to model ships and boats in 3D if special plugins such as the bezier lines are installed into the software. by Charles Roring