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revision 1.13 by tjl, Fri Oct 17 17:57:40 2003 UTC revision 1.14 by tjl, Fri Oct 17 18:17:37 2003 UTC
# Line 93  Appendix A shows how Line 93  Appendix A shows how
93  PFSS diagrams can be generated easily to show the actual behaviour of a hardware accelerator.  PFSS diagrams can be generated easily to show the actual behaviour of a hardware accelerator.
94    
95  \begin{figure}  \begin{figure}
96  a)\\\includegraphics[width=\columnwidth]{footprint.1}  \begin{tabular*}{\columnwidth}{lc}
97  b)\\  a) &  \\
98     & \includegraphics[width=5cm]{footprint.1} \\
99    b) & \\
100     & \includegraphics[width=4cm]{footprint.2} \\
101    \end{tabular*}
102  \caption{  \caption{
103  \label{figfootprint}  \label{figfootprint}
104  Pixel footprint in screen space (PFSS) diagram.  Pixel footprint in screen space (PFSS) diagram.
# Line 102  Texture samples' contribution to a pixel Line 106  Texture samples' contribution to a pixel
106  a) An explanation of PFSS diagrams: the diagrams  a) An explanation of PFSS diagrams: the diagrams
107  show the contribution of each texel to the pixel  show the contribution of each texel to the pixel
108  as a color (black = no contribution, white = large contribution).  as a color (black = no contribution, white = large contribution).
109  b) An example PFSS of an EWA texture filterer. In screen space, the  b) An example PFSS of an EWA texture filterer without
110  filter is circular and has soft edges.  mipmapping (mockup, just diagrammatic).
111    In screen space, the
112    filter is circular and has soft edges, while in texture space it would be
113    elliptical.
114  }  }
115  \end{figure}  \end{figure}
116    

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