/[gzz]/gzz/Documentation/Manuscripts/Irregu/irregu.tex
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revision 1.116 by tjl, Sat Nov 30 18:26:15 2002 UTC revision 1.117 by tjl, Sat Nov 30 18:28:02 2002 UTC
# Line 591  The image of the undistorted shape can b Line 591  The image of the undistorted shape can b
591  with texture coordinates offset by (read from) another texture.  with texture coordinates offset by (read from) another texture.
592  This is called an offset (dependent) texture access.  This is called an offset (dependent) texture access.
593    
 \subsubsection{Polygonal XXX}  
   
594  On hardware without texture shading capabilities, such as the NV10, we can  On hardware without texture shading capabilities, such as the NV10, we can
595  obtain a suitable shape by constraining the offset  obtain a suitable shape by constraining the offset
596  in the direction of the normal. This can be done by rendering  in the direction of the normal. This can be done by rendering
# Line 607  We stress that this implementation is no Line 605  We stress that this implementation is no
605  the offset texture implementation:  the offset texture implementation:
606  all its effects are within the options described in Section~\ref{secoptions}.  all its effects are within the options described in Section~\ref{secoptions}.
607    
608    \subsubsection{Polygonal XXX}
609    
610  Naturally, the undistorted shape can also be drawn polygonally, using  Naturally, the undistorted shape can also be drawn polygonally, using
611  the smooth shading interpolation in OpenGL to obtain the linearly  the smooth shading interpolation in OpenGL to obtain the linearly
612  falling value, to avoid using the second texture unit and rendering  falling value, to avoid using the second texture unit and rendering

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