CAD (Computer Aided Design)

CAD is software used to create 2D and 3D designs on a computer. The full form of CAD is “Computer-Aided Design.”

Common types of CAD are two-dimensional layout design and three-dimensional modeling.

CAD Full Form

The full form of CAD is “Computer-Aided Design.”


2D CAD has many applications, but it is most commonly used to design vector-based layouts.

For example, architects use CAD software to create overhead views of Building Floor Plans and Outdoor Landscapes. Their layouts, which contain vector graphics, can be scaled to different sizes used in proposals and blueprints.

2D CAD has covered underdrawings, such as sketches and mockups, which are very common during the early stages of a design process.


3D CAD is most commonly used to develop video games and animated films. There are also many real-world applications, such as product design, civil engineering, and simulation modeling.

3D CAD comes under computer-aided manufacturing (CAM), the actual manufacturing of three-dimensional objects.

Like 2D CAD drawings, 3D models are also typically vector-based but are covered under vectors of three dimensions, not two dimensions. It allows designers to create complex 3D shapes that can be moved, rotated, enlarged and modified.

Some 3D models are created from polygons only, while others fall under Bézier curves and rounded surfaces.

When a 3D model is created, a CAD designer first has to construct the basic shape of that object, or “wireframe.”

Once the shape is complete, the surfaces are added to the colors, gradients, or designs that are applied by a texture mapping process.

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Most CAD programs can adjust the lighting, which affects the shadows and reflections of objects. Some programs also have a timeline that is used to create 3D animations.

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