Titlebook: Rendering with mental ray®; Thomas Driemeyer Book 20012nd edition Springer-Verlag Wien 2001 3D.Computergraphik.animation.computer graphics

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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

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

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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.

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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.