This project was purely an exercise in 3d graphics. The brief was to design an on road transport vehicle. The modelling for this project used Rhino 3D as a surface modelling tool.
Although the vast majority of entrants for the project undertook four wheeled transport design, not shying away from a challenge I designed a modern tuk tuk or rickshaw akin to those seen throughout South East Asia.
If you are not familiar with a tuk tuk or rickshaw they are a three wheeled inner city mode of transport for carrying two – three passengers and one driver. This did present many challenges as opposed to designing a car.
Designing a car involves many complex curves to get the exterior perfect. This rickshaw involved complex curves throughout as it has an integrated exterior shell with the interior.
A rickshaw has an exposed interior elements required modelling. A car on the other hand can hide the interior by tinting windows, sleek Photoshopping skills or modelling only that which will be seen. The rickshaw interior involves texture mapping of material, in this case leather. This takes valuable rendering and modelling time especially when complex curves are involved in texture mapping. Ensuring all surface directions are consistent is time consuming but worth the result.
Tuk Tuk Photoshop Rendering
The first of the processes involved in creating the NURBS based model was concept generation and refining that down to one single design to be rendered in Photoshop. The three images above are initial Photoshop renders in the concept generation process.
These images have three main purposes. Firstly, to show the overall look and feel of the design, secondly to shade and highlight areas of the design that really make it stand out. Thirdly the colour and as seen in the middle brings the image to life and puts the design over the line.
Although the backgrounds to these images are not elaborate the intent is to bring attention to the rendered image by contrasting colour with black and white.
Tuk Tuk Computer Generated Rendering
As areas such as the handle bars are complex in their curvature, modelling the rubber bumpers attaching the handle bars and lights to the body of the rickshaw was necessary to create belief in the image. The Curves for the rubber bumpers rotate on all axis (X, Y and Z). This profile (the intersection between the body and the feature elements) had to follow both tightly otherwise the direction of the surfaces being modelled would scatter making rendering unrealistic.
To display the level of detail this project required, Rhino 3D was used to model and bring life to the image. Modelling and highlighting small features such as lights, seals, nuts and bolts gives the image realism, NURBS based software such as Rhino 3D is the best to handle this level of detail.
The use of reflection BITMAPS and VISMAT files make the chrome details and the gloss finished body realistic. Smaller detail like the twin exhaust in the rear render and the feature render of the engine bay further reinforce realism in the render.
Highlighting features such as the luggage space in the design was crucial as showing a point of difference in the design to existing rikshaw designs.
The projects goals were to emphasize graphic ability in computer aided rendering. Attention to detail combined with realistic material creation and reflective tools reinforce realism to the audience.