What's the difference between rendering and rasterization?

Both seem to convert a model into pixels.What's the difference between rendering and rasterization?
When you rasterize an image, you are converting it from a vector-based format to a pixel-based format. Rendering would probably be more commonly used when it refers to ';generating'; something, such as rendering a video to MPEG-2 format after you have performed editing such as transitions or cutting out scenes.What's the difference between rendering and rasterization?
Rasterization or rasterisation is the task of taking an image described in a vector graphics format (shapes) and converting it into a raster image (pixels or dots) for output on a video display or printer, or for storage in a bitmap file format.





The term rasterization can in general be applied to any process by which vector information can be converted into a raster format.





In normal usage, the term refers to the popular rendering algorithm for displaying three-dimensional shapes on a computer. Rasterization is currently the most popular technique for producing real-time 3D computer graphics. Real-time applications need to respond immediately to user input, and generally need to produce frame rates of at least 20 frames per second (and preferably 60 fps or more).





Compared with other rendering techniques such as ray tracing, rasterization is extremely fast. However, rasterization is simply the process of computing the mapping from scene geometry to pixels and does not prescribe a particular way to compute the color of those pixels. Shading, including programmable shading, may be based on physical light transport, or artistic intent.





HTH