2D animations are also known as 2D vector animation as they are created on frames of relatively flat surface. It has adopted its range of methods from the old traditional, hand-drawn animation works. Being the most conventional animation, it is done using the principal processes of drawing and painting using hand, however, these days, 2D animators also use computer graphics programs for creating these.
In vector graphics programs, the objects and images remain as geometric descriptions that exist independent of each other. This helps in changing the layers and position of any of the aspects of the object at any point of time in collaboration with the modern vector graphics tools. This also uses the traditional methods of the frame-by-frame animation, morphing (a visual effect giving the impression of a smooth transformation of one object to the other), deformation of images, cyclic light change and numerous optical effects.
3D animation remains totally different from other animation types that involve computer graphics. Even though, the similar principles of composition, movement, and technical methods intended to solve different tasks are used, for creating a 3D animation, animator don’t necessarily need outstanding drawing skills.
These are also termed as computer generated images (CGI) as they are related with a fusion of dynamic and static images with the help of computer graphics. Objects made by using 3D animation are then digitally displayed on the screen and combined with the wireframe for enabling each animated entity in various ways.
The process of 3D animation is similar to the process of making mannequins or dolls and goes as per the below mentioned process:-
The movement of the 3D animation objects is mainly defined by trajectories, key frames, and applying formulas that will be linking the motion of the parts of the complex structures. For creating realistic 3D images, the animators involve a range of diverse techniques such as- inverse kinematics, etc. along with most recent methods of combining both video recording and animation effect.
This is how both the forms are significant in it and have their own significance! So, which one are you looking for?