| 1 |
greg |
2.1 |
#!/bin/csh -f
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| 2 |
greg |
2.5 |
# RCSid: $Id$
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| 3 |
greg |
2.1 |
#
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| 4 |
greg |
2.4 |
# Generate views for depth-of-field blurring on picture
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| 5 |
greg |
2.1 |
#
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| 6 |
greg |
2.3 |
if ($#argv != 4) then
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| 7 |
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echo "Usage: $0 aperture distance nsamp viewfile" >/dev/tty
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| 8 |
greg |
2.1 |
exit 1
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| 9 |
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endif
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| 10 |
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set a = "$1"
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| 11 |
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set d = "$2"
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| 12 |
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set n = "$3"
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| 13 |
greg |
2.3 |
set vf = "$4"
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| 14 |
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cnt $n | rcalc -e `vwright i < $vf` \
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| 15 |
greg |
2.2 |
-e "M:$n/5+1;a:$a/2;d:$d;N:$n;" -e 'tmax:PI*a*(M+1)' \
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| 16 |
greg |
2.1 |
-e 't=tmax/N*($1+rand($1))' \
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| 17 |
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-e 'theta=2*M*PI/(M-1)*(M-sqrt(M*M-(M-1)/(PI*a)*t))' \
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| 18 |
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-e 'r=a*(1-(M-1)/(2*M*M*PI)*theta)' \
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| 19 |
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-e 'rcost=r*cos(theta);rsint=r*sin(theta)' \
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| 20 |
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-e 'opx=ipx+rcost*ihx+rsint*ivx' \
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| 21 |
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-e 'opy=ipy+rcost*ihy+rsint*ivy' \
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| 22 |
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-e 'opz=ipz+rcost*ihz+rsint*ivz' \
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| 23 |
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-e 'os=is-rcost/(d*ihn);ol=il-rsint/(d*ivn)' \
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| 24 |
greg |
2.3 |
-o 'VIEW= -vp ${opx} ${opy} ${opz} -vs ${os} -vl ${ol}'
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