page_title: Computer graphics
section_title: Volume rendering
hierarchical_section_title: Computer graphics / Concepts and principles / Volume rendering
caption_attribution_description: English: Volume rendered CT scan of a forearm with different color schemes for muscle, fat, bone, and blood. Русский: Изображение предплечья, полученное в результате объемного рендеринга компьютерной томографии. Разными цветами выделены мышцы, жир, кости и кровь.
context_page_description: Computer graphics is the branch of computer science that deals with generating images with the aid of computers. Today, computer graphics is a core technology in digital photography, film, video games, cell phone and computer displays, and many specialized applications. A great deal of specialized hardware and software has been developed, with the displays of most devices being driven by computer graphics hardware. It is a vast and recently developed area of computer science. The phrase was coined in 1960 by computer graphics researchers Verne Hudson and William Fetter of Boeing. It is often abbreviated as CG, or typically in the context of film as computer generated imagery.
  Some topics in computer graphics include user interface design, sprite graphics, rendering, ray tracing, geometry processing, computer animation, vector graphics, 3D modeling, shaders, GPU design, implicit surface visualization, image processing, computational photography, scientific visualization, computational geometry and computer vision, among others. The overall methodology depends heavily on the underlying sciences of geometry, optics, physics, and perception.
context_section_description: Volume rendering is a technique used to display a 2D projection of a 3D discretely sampled data set. A typical 3D data set is a group of 2D slice images acquired by a CT or MRI scanner.
  Usually these are acquired in a regular pattern (e.g., one slice every millimeter) and usually have a regular number of image pixels in a regular pattern. This is an example of a regular volumetric grid, with each volume element, or voxel represented by a single value that is obtained by sampling the immediate area surrounding the voxel.
caption: Volume rendered CT scan of a forearm with different colour schemes for muscle, fat, bone, and blood.
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