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greg |
2.1 |
#!/bin/csh -f
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# SCCSid "$SunId$ LBL"
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#
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# Do depth-of-field blurring on picture
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#
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if ($#argv < 5) then
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echo "Usage: $0 aperture distance nsamp picfile zfile [pinterp opts]" >/dev/tty
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exit 1
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endif
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set a = "$1"
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set d = "$2"
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set n = "$3"
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set pict = "$4"
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set zbf = "$5"
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set piopt = ($argv[6-]:q)
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cnt $n | rcalc -e `vwright i < $pict` \
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-e "M:19;a:$a/2;d:$d;N:$n;" -e 'tmax:PI*a*(M+1)' \
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-e 't=tmax/N*($1+rand($1))' \
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-e 'theta=2*M*PI/(M-1)*(M-sqrt(M*M-(M-1)/(PI*a)*t))' \
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-e 'r=a*(1-(M-1)/(2*M*M*PI)*theta)' \
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-e 'rcost=r*cos(theta);rsint=r*sin(theta)' \
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-e 'opx=ipx+rcost*ihx+rsint*ivx' \
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-e 'opy=ipy+rcost*ihy+rsint*ivy' \
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-e 'opz=ipz+rcost*ihz+rsint*ivz' \
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-e 'os=is-rcost/(d*ihn);ol=il-rsint/(d*ivn)' \
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-o 'VIEW= -vp ${opx} ${opy} ${opz} -vs ${os} -vl ${ol}' \
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| pinterp -vf $pict $piopt -B $pict $zbf
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