3D modeling is currently used for nearly every other industry that one may come across. In computer graphics, 3D modeling is the special process of building a representation of mathematical coordinates based on the idea of any surface of any kind of object in three dimensions with the help of some special software by the manipulation of the vertices, edges, and polygons in a 3D space. The practices of 3D CAD modeling are increasing speedily nowadays.
What is the Meaning of the Term 3D CAD Modeling?
The acronym CAD refers to Computer-Aided Design and is useful in covering a large number of design tools preferred by various industry professionals, such as game designers, architects, manufacturers, artists, and obviously engineers.
The systems of CAD help them to perform various types of geometrical calculations in the background part with ease. This makes the job of a designer very easy and full of fun.
So, to define in a sentence, 3D modeling or 3D CAD modeling is the special process of creating attractive three-dimensional graphics or images for the representation of both real-time objects and surfaces.
The Techniques That are Used Commonly in 3D CAD Modeling:
Edge Modeling
Edge modeling is a special type of polygonal technique. In this special process, the model makers can develop the entire model piece by piece. This is done by putting the loops of polygons with the outlines and also filling the gaps that are located between them. This process is used as it is difficult to complete some specific meshes through the box technique.
Box Modeling
These special types of techniques are one kind of polygonal modeling, where the designer or the artist uses a special geometric shape, like a cylinder, cube, or sphere, and gives those shapes until the expected appearance is achieved. Box models can easily carry out the entire process in various stages.
They can start the process with a low-resolution mesh, and after that, can refine the shape. Then they just sub-divide the mesh to make sure that the hard edges are being smoothed out and can add to the important detail.
They also can repeat the process of subdividing and refining till enough detail related to that is present in the mesh, which is able to convey the intended concept. Box modeling is one of the very important yet common polygonal 3D techniques that are used with the ones having edge modeling.
Subdivision Modeling
Subdivision modeling is done by mixing both the polygonal and NURBS modeling techniques. This is a hybrid process, where a polygon model allows in developing the 3D models, which can be converted into those sub-division models. The artist can get full control over the refining of the 3D models in some specific areas.
Nurbs Modeling
This special kind of 3D CAD modeling is used in both industrial and automotive procedures. A NURBS mesh does not offer any face or vertices. These come with some surfaces that can be smoothly interpreted. The model makers can easily develop the concept by lofting a specific mesh between the splines. This modeling, known as the NURBS modeling, is the dome with the help of a special tool.
Hence, advanced 3D CAD modeling techniques are very important in a wide range of industries and thus becoming popular nowadays.