Volume Ray Casting
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High Quality Content by WIKIPEDIA articles! Volume ray casting, sometimes called volumetric ray casting or volume ray marching, is an image based volume rendering technique. It computes 2D images from 3D volumetric data sets. Volume ray casting, which processes volume data, must not be mistaken with ray casting, which processes surface data.The technique of volume ray casting can be derived directly from the rendering equation. It provides results of very high quality at the price of long runtime, usually it is considered to be both the best and the slowest technique. Volume ray casting is cla...
High Quality Content by WIKIPEDIA articles! Volume ray casting, sometimes called volumetric ray casting or volume ray marching, is an image based volume rendering technique. It computes 2D images from 3D volumetric data sets. Volume ray casting, which processes volume data, must not be mistaken with ray casting, which processes surface data.The technique of volume ray casting can be derived directly from the rendering equation. It provides results of very high quality at the price of long runtime, usually it is considered to be both the best and the slowest technique. Volume ray casting is classified as image based volume rendering technique, as the computation emanates from the output image, not the input volume data as is the case with object based techniques.
