2D web icons along with other objects are notable for their flexibility. This versatility is reached by rendering them at various resolutions suitable for various output devices.
2D Icons items:
- raster pictures (digital graphics);
- styled text as a typeset for 2D Icons;
- vector models (geometric graphics).
All these items can be managed by 2D transformations such as rotation, scaling or angular position etc. Meshing basic models you may get more complex ones.
2D icons aren't similar to the real three-dimensional objects but because of the layers technique they can create the illusion of all 3D characteristics like shadow, reflection or highlighting. The layers should maintain the definite hierarchy and order carefully.
2.5D Icons versus 3D and 2D Icons
The layered 2Dicons are usually known as 2.5D models. This technology enables web site designers to work with any layer without the need of touching the others. The best of the prominent graphics editors prefer this kind of 2D object creation.
2.5D is a synonym to pseudo 3D and is interpreted as "two-and-a-half-dimensional" graphics. Models that were built with a help of with 2.5D technology appear to be tridimensional but in fact they aren't. The featured projection represents both front and side views.
This technology used for designing 2D icons is often achieved by the special lighting effect. 3D illusion is achieved due to the virtual light source to the left or to the right side and above the users monitor.
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