enlist
发表于 2025-3-30 09:25:29
Volume Rendering,els. It is possible to write volume shaders that act as sub-renderers in their domain of space, performing object and volume intersection tests like mental ray does. However, in practice volume shaders are used for effects like those in the above list; mental ray can handle solid object intersections much more efficiently.
amputation
发表于 2025-3-30 12:22:15
Cameras,The scene cannot be rendered from multiple viewpoints simultaneously. It is, however, possible to define multiple cameras and attach their camera instances to the root group; the one to be used must be passed to the render statement. See the simple cube example on page 28 for a very simple scene setup.
electrolyte
发表于 2025-3-30 16:38:49
http://reply.papertrans.cn/83/8271/827037/827037_53.png
娘娘腔
发表于 2025-3-30 21:52:21
Scene Construction,g a text editor, but in general scenes will be too complex for that and are created by modeling, animation, and CAD tools instead. However, this book uses simple scenes that can be typed in with a text editor, or taken from the sample scenes provided with the mental ray distribution.
侵略
发表于 2025-3-31 03:04:40
Contours,rendering about where and how contour lines should be placed, and then, during postprocessing, drawing contours based on the results. Drawing can take place on top of the rendered color image, or in a blank color frame buffer (if only the contours are desired), or to a PostScript file. All stages of contour rendering are programmable with shaders.