DECRY
发表于 2025-3-30 08:58:18
Three-dimensional Clipping,ensions HORIZ × VERT. These methods are also sufficient for dealing with orthographic projections of three-dimensional scenes since the whole of space can be projected onto the view plane and clipped in two dimensions. Dealing with perspective projections is rather more complex. Once again we assume
FRONT
发表于 2025-3-30 15:56:45
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watertight,
发表于 2025-3-30 20:36:59
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态学
发表于 2025-3-30 23:03:48
Analytic Representation of Three-dimensional Space,nt approach to the definition of a scene: instead of approximating surfaces with a polygonal mesh, we define them as combinations of .. Each primitive object is mathematically defined in terms of an analytic function: we have already introduced this idea in the analytic representation of surfaces in
Aggregate
发表于 2025-3-31 04:37:13
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otic-capsule
发表于 2025-3-31 06:16:07
Shading,atly enhanced by the use of .. We take advantage of the colour display of the graphics device to model the different appearances of surfaces depending on the light striking them. Plates III, XIII and IX show pictures produced using the shading techniques introduced in this chapter.
athlete’s-foot
发表于 2025-3-31 10:36:07
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JUST
发表于 2025-3-31 16:04:58
Matrix Representation of Transformations in Two-dimensional Space,tem is changed. As we have seen in previous chapters, the drawing of any object in computer graphics may ultimately be considered in terms of specifying and joining groups of points, and so all that is necessary is to discover what happens to the co-ordinate representation of a point with a change of co-ordinate system.
玩笑
发表于 2025-3-31 21:23:42
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粘土
发表于 2025-4-1 00:57:27
Generation of Model Data,pendent only on the projection and type of picture you require: line drawing, colour with/without shading, shadows etc. All the reader need do is create the relevant SCENE and construction routines and call the correct DRAWIT routine.