[ViewVC] Diff of: radiance/ray/doc/man/man1/pdfblur.1

Comparing ray/doc/man/man1/pdfblur.1 (file contents):
Revision 1.2 by greg, Tue Dec 9 15:59:06 2003 UTC vs.
Revision 1.3 by greg, Tue Jan 18 01:37:43 2005 UTC

#	Line 5 \| Line 5 \| pdfblur - generate views for depth-of-field blurring
5		.SH SYNOPSIS
6		.B pdfblur
7		.B aperture
8	–	.B distance
8		.B nsamp
9		.B viewfile
10		.SH DESCRIPTION
#	Line 14 \| Line 13 \| takes the given
13		.I viewfile
14		and computes
15		.I nsamp
16	<	views based on a focus distance of
18	<	.I distance
19	<	and an aperture diameter of
16	>	views based on an aperture diameter of
17		.I aperture
18	<	(both in world coordinate units).
18	>	(in world coordinate units) and a focal distance equal to the length of the
19	>	.I \-vd
20	>	view direction vector.
21		When rendered and averaged together, these views will result in
22		a picture with the specified depth of field.
23		Either
#	Line 87 \| Line 86 \| We have found a
86		.I nsamp
87		setting somewhere between 5 and 10 to be adequate for most images.
88		Relatively larger values are appropriate for larger aperatures.
89	+	.PP
90	+	The
91	+	.I \-pd
92	+	option of
93	+	.I rpict
94	+	may be used instead or in combination with or instead of
95	+	.I pdfblur
96	+	to blur depth-of-field.
97	+	If used in combination,
98	+	it is best to set the
99	+	.I \-pd
100	+	option to the overall
101	+	.I aperture
102	+	divided by
103	+	.I nsamp
104	+	to minimize ghosting in the output.
105		.SH EXAMPLES
106		To use
107		.I pinterp

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