Animations Animations or so called pre-rendered animations.
Most Adobe Flash animations calculate each image of an animation
directly or in real-time in computer slang. This happens on
your computer.
Each frame - a separate image of the animation - is
calculated instantaneously.
Visual features which need a lot of calculation, such as shadows and/or reflections, are difficult to reproduce in Adobe Flash, since your browser needs your computer to perform various other calculations, too.
If the number of calculations required for rendering an image are too high, rendering the images in advance is a good option.
The number of calculations for each individual frame is unlimited and may range from a few seconds to, sometimes, even hours, depending on the amount of complex calculations required.
Once all the images have been calculated, they are put together into an animation; a series of images which are shown rapidly one after the other.
Most of the displayed animations are made from scratch in the programming language C. For this purpose - and out of pure curiosity - I wrote a render engine myself.
Some of the animations are made with the use of blender, povray or cinema4d.