[Gzz-commits] manuscripts/AniFont Makefile anifont.tex

[Tuomas J. Lukka]

CVSROOT:        /cvsroot/gzz
Module name:    manuscripts
Branch:         
Changes by:     Tuomas J. Lukka <address@hidden>        03/10/24 09:20:36

Modified files:
        AniFont        : Makefile anifont.tex 

Log message:
        Arch sync

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/manuscripts/AniFont/Makefile.diff?tr1=1.11&tr2=1.12&r1=text&r2=text
http://savannah.gnu.org/cgi-bin/viewcvs/gzz/manuscripts/AniFont/anifont.tex.diff?tr1=1.21&tr2=1.22&r1=text&r2=text

Patches:
Index: manuscripts/AniFont/Makefile
diff -u manuscripts/AniFont/Makefile:1.11 manuscripts/AniFont/Makefile:1.12
--- manuscripts/AniFont/Makefile:1.11   Fri Oct 24 06:21:42 2003
+++ manuscripts/AniFont/Makefile        Fri Oct 24 09:20:35 2003
@@ -1,7 +1,5 @@
 GF4GOSNAPNAMES= \
-       aniso-gf4go-nearest.png  aniso-gf4go-bilinear.png  
aniso-gf4go-trilinear.png \
-       aniso-gf4go-aniso-nearest.png  aniso-gf4go-trilinear-aniso.png  
aniso-gf4go-aniso.png    \
-       aniso-gf4go-ortho-trilinear.png aniso-gf4go-ortho-stretchsquish.png
+       aniso-gf4go-tbl-iso-fsaa.png  aniso-gf4go-tbl-aniso-fsaa.png  
aniso-font-fsaa.png
 
 GFFXSNAPNAMES= \
        aniso-gffx-tbl-iso-nearest.png \
@@ -20,7 +18,7 @@
 
 SNAPDIR=../../libvob/snaps
 
-GF4GOSNAPSSOURCE:=$(GF4GOSNAPNAMES:%=../../libvob/snaps/%)
+GF4GOSNAPSSOURCE:=$(GF4GOSNAPNAMES:%=../../libvob/tmpsnaps/%)
 GF4GOSNAPS:=$(GF4GOSNAPNAMES:%=snaps/%)
 GF4GOSNAPSPS:=$(GF4GOSNAPNAMES:%.png=snapsps/%.ps)
 
@@ -44,7 +42,8 @@
 
 snapsps/%.ps: snaps/%.png Makefile
        mkdir -p snapsps
-       pngtopnm < $< | ppmnorm -bpercent 1 -wpercent .1 | pnmgamma | pnmtops > 
$@ 
+       # pngtopnm < $< | ppmnorm -bpercent 1 -wpercent .1 | pnmgamma | pnmtops 
> $@ 
+       pngtopnm < $< | pnmgamma | pnmtops > $@ 
 
 copygf4gosnaps: $(GF4GOSNAPSSOURCE)
        cp $(GF4GOSNAPSSOURCE) snaps/
Index: manuscripts/AniFont/anifont.tex
diff -u manuscripts/AniFont/anifont.tex:1.21 
manuscripts/AniFont/anifont.tex:1.22
--- manuscripts/AniFont/anifont.tex:1.21        Fri Oct 24 06:21:42 2003
+++ manuscripts/AniFont/anifont.tex     Fri Oct 24 09:20:35 2003
@@ -62,8 +62,7 @@
 
 However, it did not. To our great surprise, the image quality (the
 readability of the text) actually \emph{improved significantly}.
-Stretching the text in the texture and squishing it back with adjusting
-the texture coordinates improved image quality. In this article, we show
+In this article, we show
 why this is the case and how easy it is to take advantage of this effect.
 
 The rest of the article is organized as follows.
@@ -74,7 +73,7 @@
 in an elegant fashion by probing the hardware accelerators' true filtering 
behaviour.
 
 
-\section{Related work; Understanding texture filtering}
+\section{Background}
 
 \label{secrelated}
 
@@ -92,34 +91,28 @@
 \snapshot{snapsps/aniso-gffx-tbl-iso-nearest.ps}   &
 \snapshot{snapsps/aniso-gffx-tbl-iso-trilinear.ps}   &
 \snapshot{snapsps/aniso-gffx-tbl-iso-aniso.ps}   &
-&
-\snapshot{snapsps/aniso-gffx-tbl-iso-super4.ps}   \\
+\snapshot{snapsps/aniso-gf4go-tbl-iso-fsaa.ps}   &
+\snapshot{snapsps/aniso-gffx-tbl-iso-super4.ps}   \\[1ex]
 %
 Aniso&
 \snapshot{snapsps/aniso-gffx-tbl-aniso-nearest.ps}   &
 \snapshot{snapsps/aniso-gffx-tbl-aniso-trilinear.ps}   &
 \snapshot{snapsps/aniso-gffx-tbl-aniso-aniso.ps}   &
-&
+\snapshot{snapsps/aniso-gf4go-tbl-aniso-fsaa.ps}   &
 \snapshot{snapsps/aniso-gffx-tbl-aniso-super4.ps}   \\
 %
 \end{tabular}
 \caption{
 \label{figbitrilinear}
-PFSS (Pixel Footprint in Screen Space) diagrams generated on a Geforce FX 5600 
(NV31), showing
+PFSS (Pixel Footprint in Screen Space) diagrams generated on a Geforce4Go 
(FSAA 4xSS) 
+and a Geforce FX 5600 (all others), showing
 different types of filtering as they actually occur on the hardware 
 (see Appendix A for how to generate such diagrams).
 The dark, orthogonal square is a single pixel, enlarged, over which the 
contributions
-from texels around it are shown by their color.
-a) nearest-neighbour, b), c) trilinear filtering.
-The trilinear footprint is the weighted sum of two bilinear footprints.
-In c), the texture is mapped quite anisotropically and the 
+from texels mapped to locations around it are shown by their color.
+In the lower row, the texture is mapped quite anisotropically and the 
 blurring effect of trilinear filtering is obvious - the footprint
-is much larger in the XXX direction than it should be.
-Hardware anisotropic filtering. 
-On the same card and same texture coordinates as
-c), but with anisotropic
-filtering enabled, the PFSS diagram shows a much better 
-footprint fitting more closely around the pixel.
+is much larger in the vertical direction than it should be.
 }
 \end{figure*}
 
@@ -160,12 +153,19 @@
   trilinear - better approximation of EWA. Modern graphics cards support up to 
XXX samples
   XXX Feline texram talisman
 
+\section{Related work: Improving hardware-rendered image quality}
+
 - Unextended OpenGL aniso: article on using lod bias etc to get 
it\cite{olano01vertexbasedaniso}
 
+- lod BIAS
+
 - supersampling: FSAA / as above; however, most cards focus on multisampling, 
not supersampling - 
   no help for textures
 
+- custom supersampling in the same way as in \cite{olano01vertexbasedaniso}, 
or using multitexture.
+  Vertex and fragment -based.
 
+- Mipmap adjustment (see advanced OpenGL course notes)
 
 \section{Why does stretch and squish improve image quality?}
 
@@ -214,6 +214,7 @@
 \includegraphics[height=\fontexamplesize]{snapsps/aniso-font-trilinear.ps}
 \includegraphics[height=\fontexamplesize]{snapsps/aniso-font-horiz2.ps}
 \includegraphics[height=\fontexamplesize]{snapsps/aniso-font-vert2.ps}
+\includegraphics[height=\fontexamplesize]{snapsps/aniso-font-fsaa.ps}
 \includegraphics[height=\fontexamplesize]{snapsps/aniso-font-super4.ps}
 \caption{
 \label{figexamples}