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revision 1.12 by tjl, Fri Oct 17 09:15:22 2003 UTC revision 1.13 by tjl, Fri Oct 17 17:57:40 2003 UTC
# Line 75  in an elegant fashion by probing the har Line 75  in an elegant fashion by probing the har
75  \label{secrelated}  \label{secrelated}
76    
77    
78  \subsection{The texture mapping primitive}  % \subsection{The texture mapping primitive}
79    
80  Texture mapping is a ubiquitous ... \cite{haeberli93texture}  Texture mapping is a ubiquitous ... \cite{heckbert86survey,haeberli93texture}
81  originally introduced introduced by Catmull\cite{catmull74}.  originally introduced introduced by Catmull\cite{catmull74}.
82    
83    In off-line rendering, off
84    
85  - off-line rendering: EWA XXXREF  - off-line rendering: EWA XXXREF
86    
# Line 106  filter is circular and has soft edges. Line 107  filter is circular and has soft edges.
107  }  }
108  \end{figure}  \end{figure}
109    
110  \subsection{Mipmapping: bi- and trilinear filtering}  % \subsection{Mipmapping: bi- and trilinear filtering}
111    
112  - Trilinear/bilinear (mipmap) filtering was designed to avoid temporal and spatial aliasing\cite{williams83pyramidal}  - Trilinear/bilinear (mipmap) filtering was designed to avoid temporal and spatial aliasing\cite{williams83pyramidal}
113    
# Line 134  over each other. Line 135  over each other.
135  \end{figure}  \end{figure}
136    
137    
138  \subsection{Anisotropic texture filtering}  % \subsection{Anisotropic texture filtering}
139    
140  - basic anisotropic solution: more samples from the mipmaps than the 8 used for  - basic anisotropic solution: more samples from the mipmaps than the 8 used for
141    trilinear - better approximation of EWA. Modern graphics cards support up to XXX samples    trilinear - better approximation of EWA. Modern graphics cards support up to XXX samples
# Line 172  b)\\ Line 173  b)\\
173  c)\\  c)\\
174  \caption{  \caption{
175  \label{figaniso}  \label{figaniso}
176  Anisotropic filtering.  Hardware anisotropic filtering.
177  On the same card and same texture coordinates as  On the same card and same texture coordinates as
178  Fig.~\ref{figbitrilinear} c), but with anisotropic  Fig.~\ref{figbitrilinear} c), but with anisotropic
179  filtering enabled, the PFSS diagram shows a much better (smaller)  filtering enabled, the PFSS diagram shows a much better (smaller)

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