![]() This is computationally intensive and slower, but allows for the best possible resolution at any moment in time. Vector images have no grid (they are resolution independent), so the output device follows the instructions (the musical score) creating a new performance of it every time at the desired grid size (or the best possible for that device). This is usually very fast, and even faster when the grid is not altered. You'd have to add or remove lights from the light bank and then to recalculate the brightness to configure the light switches. Raster images must be "resampled" if their pre-determined grid does not match the output device grid (their resolution does not match). Raster is pre-baked, vector is made from scratch. (plotters/laser cutters might be considered an exception to this). (originally, the raster data (a bitmap) was simply shoved as-is into the display memory)Īll images must be rasterized for any form of output: display, print, etc. This is metaphorically similar to a fixed grid of lights where each light is on a dimmer, and each number determines the dimmer setting for a single light. The courseness of the grid (resolution) is set at the time of creation. It has no resolution.Ī raster is a string of numbers (brightness data) which have a one to one correspondence to a 2-d grid. It is metaphorically similar to a musical score. Some do lean much more on the raster side (voxels anyone).Ī vector is a descriptive language that allows a person or computer to recreate the image by following a set of steps. There is more variation in 3D than in 2D. ![]() But since nothing is really that black and white it's up for grabs. The easiest way to deal with this is if your central work revolves around designing pixels and modifying individual samples - then it's raster. But since most data is mixed content, it's really hard to say.ĭoes something become vector even if there is just one vector element? Or is in fact all printer output vector on account that the page description languages image placement is a vector operation in its core? From a printers point of view, anything that is not vector content in a PDF is not vector. It depends on what you want to achieve and what you do. The distinction is getting harder to make as time goes forward. So in the end it depends on who's definition you use. Does raster imply discrete data sampling? Are raster data editors truly that, if you can change the text isn't that a vector description feature? So not even in 2D is the distinction so easy. Then there is the discrete versus continuous function discussion. So the end result is not a vector for your client. This is true in most cases, but exceptions exist. So a 3D software has to output a raster image. However unlike 2D vector graphics, there is not necessarily a general re-rendering paradigm in 3D. The description language of most 3D engines resemble more a page description language of a vector graphics engine. Generally I would say that 3D the images are most likely classifiable as vector*, if by vector one means the scale-ability of the end render. Since the nuance of the definition is important, it is hard to say. It depends on exactly how you define the terms. Most 3D applications are not something one could call raster, but it does not have to be vector either. ![]() Well, the terms do not really align in 3D and in 2D they are a bit elusive too.
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