src/px/pdfblur.csh

#!/bin/csh -f
# RCSid: $Id$
#
# Generate views for depth-of-field blurring on picture
#
if ($#argv != 4) then
        echo "Usage: $0 aperture distance nsamp viewfile" >/dev/tty
        exit 1
endif
set a = "$1"
set d = "$2"
set n = "$3"
set vf = "$4"
cnt $n | rcalc -e `vwright i < $vf` \
-e "M:$n/5+1;a:$a/2;d:$d;N:$n;" -e 'tmax:PI*a*(M+1)' \
-e 't=tmax/N*($1+rand($1))' \
-e 'theta=2*M*PI/(M-1)*(M-sqrt(M*M-(M-1)/(PI*a)*t))' \
-e 'r=a*(1-(M-1)/(2*M*M*PI)*theta)' \
-e 'rcost=r*cos(theta);rsint=r*sin(theta)' \
-e 'opx=ipx+rcost*ihx+rsint*ivx' \
-e 'opy=ipy+rcost*ihy+rsint*ivy' \
-e 'opz=ipz+rcost*ihz+rsint*ivz' \
-e 'os=is-rcost/(d*ihn);ol=il-rsint/(d*ivn)' \
-o 'VIEW= -vp ${opx} ${opy} ${opz} -vs ${os} -vl ${ol}'
Revision:	2.5
Committed:	Sat Feb 22 02:07:27 2003 UTC (21 years, 2 months ago) by greg
Content type:	application/x-csh
Branch:	MAIN
CVS Tags:	rad3R5, rad3R6, rad3R6P1
Changes since 2.4:	+1 -1 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	Content
1	#!/bin/csh -f
2	# RCSid: $Id$
3	#
4	# Generate views for depth-of-field blurring on picture
5	#
6	if ($#argv != 4) then
7	echo "Usage: $0 aperture distance nsamp viewfile" >/dev/tty
8	exit 1
9	endif
10	set a = "$1"
11	set d = "$2"
12	set n = "$3"
13	set vf = "$4"
14	cnt $n \| rcalc -e `vwright i < $vf` \
15	-e "M:$n/5+1;a:$a/2;d:$d;N:$n;" -e 'tmax:PIa(M+1)' \
16	-e 't=tmax/N*($1+rand($1))' \
17	-e 'theta=2MPI/(M-1)(M-sqrt(MM-(M-1)/(PIa)t))' \
18	-e 'r=a(1-(M-1)/(2MMPI)*theta)' \
19	-e 'rcost=rcos(theta);rsint=rsin(theta)' \
20	-e 'opx=ipx+rcostihx+rsintivx' \
21	-e 'opy=ipy+rcostihy+rsintivy' \
22	-e 'opz=ipz+rcostihz+rsintivz' \
23	-e 'os=is-rcost/(dihn);ol=il-rsint/(divn)' \
24	-o 'VIEW= -vp ${opx} ${opy} ${opz} -vs ${os} -vl ${ol}'