In the 3D computer graphics world 3D modelling is the process of developing a 3d model using very specific software some example of this software are Cinema 4D, Maya, 3Ds Max and many other, their are so many 3D software out their that the list would be huge but this are the softwares i have experimented with so far. 3D modelling is creating a a wireframe model that will represent a 3D object, objects that are alive or not alive. A 3D model will be created by points in a 3D space and this points are connected by lots of different geometry such as curved surfaces and lines. 3D modelling is part of the pre-production in the pipeline.
After a character design is finalised by the concepts artists the final drawing will be passed on to the modellers so they can start modelling the character/object in a 3D environment giving it depth and detail giving the character/object life. before computer graphics started advancing and the softwares started to be updated with different and better tools, clay models may have been used to give the modellers a better understanding of hoe the character/model would look like in 3D form for a 2D drawing. But now that technology has evolve so has the software that modellers use and now they have the facilities of using thing like scanners so they can import and the 2D drawing of different views of the character/objects and by having that technology that allows they to do everything they need straight in the 3D software they are using. this is much easier because it less time consuming because it allows the modellers to create everything in a computer environment. this is much better because if the character/object has to be changed in any way it does not have to be re-suptured the modeller just has to go back to the character/object and apply the changes that are necessary in the places that are needed. By having a computer environment only its also useful because all the UV Mapping and texturing can all be done in the same software wish is less time consuming.
A 3D modeller will have to have a very good understanding of how of the work they do so they can approach their work they right way. They need to be always researching new ways and new softwares so they have a great understanding of what is the best way to create the character/object that the concept artist as come up with. They also need to have good knowledge of how the anatomy of the human body and also animals this will be helpful if they want to specialise in character modelling they should study the human body and animals as much as possible analysing the structure and the moments this will give them the advantage of creating great realistic characters. Modellers also need to have good knowledge of polygon flow and mesh and also a good rig because all that is very important if the are creating a deforming or no-deforming object. so having a good knowledge of that will allow them to create any design that have been asked from them by the concept artists.
A modeller may be part of may different areas like Animated films, Short films, Into, adverts, Visual FX, Video games development and also Motion Graphics.
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