suzanne.soy/2011-m2s3-presentation-terrain
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Présentation telle que nous l'avons montrée aujourd'hui.

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This commit is contained in:
Georges Dupéron 2011-11-14 18:53:22 +01:00
parent 8c430d59d3
commit 1b705a4cc4
2 changed files with 15 additions and 10 deletions
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128_présentation.pdf Normal file
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présentation.tex
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@ -274,7 +274,7 @@
% Génération du perlin 2D
\xdef\twodperlinsize{64}%128
\xdef\twodperlinsize{128}
\xdef\maxvtwodperlin{0}
\xdef\minvtwodperlin{0}
\def\maxradius{32}
@ -292,7 +292,7 @@
}
% Génération du craters
\xdef\craterssize{64}%128
\xdef\craterssize{128}
\xdef\maxvcraters{0}
\xdef\minvcraters{0}
\def\maxradius{32}
@ -575,18 +575,23 @@
\message{Gradient line \y/\twodperlinsize...}
\foreach \x in {1,2,...,\twodperlinsize}{
\pgfmathsetmacro{\v}{(\getcache{vtwodperlin,\x,\y}-\minvtwodperlin)/max(1,\maxvtwodperlin-\minvtwodperlin)}
\only<6>{\pgfmathsetmacro{\v}{courbepoly(\v)}}
\pgfmathsetmacro{\vv}{\v}%
\only<6>{%
\pgfmathsetmacro{\vv}{courbepoly(\v)}%
}
\setintmacro{\v}{max(0,min(512,int(\v*512)))}
\setintmacro{\vv}{max(0,min(512,int(\vv*512)))}
\path[fill=\getcache{gradient,terrain,\v}] (\x,\y) rectangle ++(1.5,1.5);
\path[fill=\getcache{gradient,terrain,\v}] (300+\x,\y) rectangle ++(1.5,1.5);
\path[fill=\getcache{gradient,terrain,\vv}] (300+\x,\y) rectangle ++(1.5,1.5);
}
}
\only<6>{ \draw[gray!50] (150,0) -- (150+128,128); }
\only<5>{ \draw[red, samples at={0,...,128}, smooth] plot (150+\x,\x); }
\only<6>{ \draw[red, samples at={0,...,128}, smooth] plot (150+\x,{courbepoly(\x/128) * 128}); }
\draw[gray!50] (150,128) -- (150+128,128);
\draw[gray!50] (150+128,0) -- (150+128,128);
\draw[->] (150,0) -- (150,128);
\draw[->] (150,0) -- (150+128,0);
\draw[gray!50] (150,128) -- (150+128,128);
\draw[gray!50] (150,0) -- (150+128,128);
\end{tikzpicture}
\end{figure}
\end{itemize}
@ -706,10 +711,10 @@
\end{figure}
\begin{itemize}
\item<1-> Très simple, très petit code.
\item<5-> Sampling
\item<6-> Très lent
\item<7-> Démonstration
\item<8-> Monte Carlo
\item<8-> Sampling
\item<9-> Très lent
\item<10-> Démonstration
\item<11-> Monte Carlo
\end{itemize}
\end{frame}