3D Animation

3D animation is created using 3D computer graphics that make use of a three-dimensional depiction of geometric data that is saved in a computer to perform calculations and render two-dimensional images. 3D graphics in computers depend on a number of similar algorithms used in 2D vector graphics and 2D raster graphics that is put into effect in the final rendered image

In 3D animation graphics software, there are not many differences in the 2D animation and 3D animation. Many 2D animation applications make use of 3D animation techniques to get lighting effects and many 3D animation applications make use of the 2D animation techniques. The 3D animation computer graphics are known as 3D animation models. Other than the rendered graphic, the 3D animation model is stored inside a graphical data file.

Although they are different 3D animation models are mathematical depiction of a 3D animation object whether they are living or inanimate. There 3D animation models cannot be referred to as graphic unless they are visually displayed. These models can be shown visually as 2D animation images via a process known as 3D animation rendering.

3D Animation Process

The entire process of generating 3D animation computer graphics can be individually divided into three elementary parts. The first of the three is 3D animation modelling where the process of creating the object's shape is described, followed by animation and layout where there the placement and motion of the object is described and finally the 3d animation rendering which generates the visual image of the object.

3D Animation Modelling: In 3D animation modelling, the process of creating the shape of an object is described. Two or the simplest sources of 3D animation models are the ones that are produced by a designer in a computer using some 3D animation modelling software of three-dimensional modelling tool and real-world images inserted in the computer through a scanner. 3D models can be produced through physical stimulation as well.

3D Animation: Before rendering an object, object should first be inserted into a scene. Animation is the thing that explains the spatial correlation between the objects in a particular scene together with its size and location. 3D Animation is the term that is given to an objects deformation and movement over time. Few of the popular methods of 3D animation are motion capture, inverse kinematics and key framing.

3D Animation Method1: Key Frame

In animation and filmmaking, a key frame is referred to as a drawing, which qualifies the starting and end points of a smooth transition. They are referred to as frames since their position with respect to time is measured in frames on a film strip. A series of key frames arranged sequentially define that particular movement the viewer will see. On the other hand, the position of the key frames on the 3D animation or video controls the movement timings. Since only a few key frames in a second are not capable of producing the illusion of movement, the rest of the frames are crammed with in-betweens.

3D Animation Method2: Inverse Kinematics

3D animation inverse kinematics is the process used to resolve the parameters of a jointed bendable object to attain a desired pose. Inverse kinematics is a very important aspect of 3D animation and game programming where inverse kinematics ensures that the characters in the animation or the game programming go physically with their world. A 3D animation character is usually made up of a number of rigid pieces with joints. An infinite number of configurations can be obtained by changing the angles of these joints. The pose of the figure is can be determined by finding the solution of the forward kinematics animation problem if the angles are specified. The inverse kinematics problems can be resolved by nonlinear programming procedures. Inverse kinematics enables the 3D animators to control the intricate movements of 3D human body parts, such as the human hand, to any position they desire by defining the angles of the elbow, wrist and shoulder joints.

Inverse kinematics is vastly used by the 3D artists. It makes their work easy by allowing them to express the desired poses of the characters without defining the joint angles directly. Inverse kinematics is also widely used in applications such as animation control, interactive manipulation as well as collision avoidance. Get Information on 3D animation though online and information about different colleges, schools and training centres, about 3D animation career and also information on animation jobs.