Rendering Techniques

Rendering essentially is the art of creating realistic images. It refers to the process of adding realism to a drawing by adding 3-dimensional qualities such as shadows and variations in color and shade. Rendering also helps to show surface details such as pattern and texture. Rendering can be done with different equipment such as pencils, coloured pencils or pen.
First, models of the object are generated. Next a viewing specification and lighting conditions are selected. Those surfaces visible to the viewer are then determined and rendered.
Thick and thin line
It is a popular technique that helps to make the drawing stand out. For this technique, thin lines are used in between adjoining surfaces. Thick lines are used when only one side can be seen. It is used to make the drawing stand out.

Shading
Shading is the process to make a simple line drawing of a solid or surface appear to pop out into 3-space with respect to a source of light. Shading is used to create illusion of realism. Shadowing
It is a process by which a partial darkness is rendered to show which rays from a source of light are cut off by an interposed opaque body. It is used to show that the drawing has been placed on a ground.
Texture pattern
It is the visual or tactile surface characteristics and appearance of something. Texture can be regular or irregular, and smooth or rough. It is used to describe either way a 3-dimensional work actually feels when touched.
Coloured background
The choice of background for a presentation drawing can determine its success or failure. It is the process of colouring around the drawing. It enhances the drawing. It is used to emphasize on an