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<H1><A ID="SECTION00440000000000000000"> Named Objects</A> </H1>
<P> ! A name may be associated with any primitive, aggregate, or CSG object through the use of the <TT>name</TT> keyword:
<P> Index: Doc/Guide/surfaces.tex *** old/Doc/Guide/surfaces.tex Mon Feb 3 12:50:02 1992 — new/Doc/Guide/surfaces.tex Fri Jan 17 10:29:14 1992 *************** *** 8,17 **** the ``interior'' of an object is the ``other side'' of the object's surface relative to the origin of a ray.
<P> ! Rayshade usually ensures that a primitive's surface normal is pointing towards the origin of the incident ray when performing shading calculations. Exceptions to this rule are transparent primitives, for ! which rayshade uses the direction of the surface normal to determine if the incident ray is entering or exiting the object. All non-transparent primitives will, in effect, be double-sided.
<P> — 8,17 —- the ``interior'' of an object is the ``other side'' of the object's surface relative to the origin of a ray.
<P> ! usually ensures that a primitive's surface normal is pointing towards the origin of the incident ray when performing shading calculations. Exceptions to this rule are transparent primitives, for ! which uses the direction of the surface normal to determine if the incident ray is entering or exiting the object. All non-transparent primitives will, in effect, be double-sided.
<P> *************** *** 26,32 **** with the exception of the index of refraction, which is assigned the default index of refraction (normally 1.0).
<P> ! Surface descriptions are used in rayshade to compute the color of a ray that strikes the surface at a point P. The normal to the surface at P, N, is also computed.
<P> — 26,32 —- with the exception of the index of refraction, which is assigned the default index of refraction (normally 1.0).
<P> ! Surface descriptions are used in to compute the color of a ray that strikes the surface at a point P. The normal to the surface at P, N, is also computed.
<P> *************** *** 55,61 ****
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The intensity of specular highlights from light sources are
scaled by the specular color of the surface.
— 55,62 —-
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The intensity of specular highlights from light sources are
scaled by the specular color of the surface.
***************
*** 106,115 ****
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