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Comparing ray/doc/man/man1/bsdf2ttree.1 (file contents):
Revision 1.4 by greg, Wed Mar 12 21:15:31 2014 UTC vs.
Revision 1.6 by greg, Wed May 31 17:25:21 2017 UTC

# Line 7 | Line 7 | bsdf2ttree - generate XML tensor tree description of a
7   [
8   .B "\-pC"
9   ][
10 + .B "{+|-}a"
11 + ][
12   .B "\-g Nlog2"
13   ][
14   .B "\-t pctcull"
# Line 24 | Line 26 | or
26   [
27   .B "\-pC"
28   ][
29 + .B "{+|-}a"
30 + ][
31   .B "\-g Nlog2"
32   ][
33   .B "\-t pctcull"
# Line 52 | Line 56 | option by itself turns off the progress bar, whose len
56   by an immediately following integer argument.
57   (The default progress bar length is 79 characters.)\0
58   .PP
59 + The
60 + .I \-a
61 + option turns off reciprocity averaging for isotropic scattering or anisotropic reflection.
62 + Normally on (+a), this ensures that the tensor BRDF obeys Helmholtz reciprocity.
63 + However, in certain rare cases, reciprocity averaging can cause unwanted noise in the output.
64 + .PP
65   The maximum resolution of the tensor tree may be controlled by the
66   .I \-g
67   option, which defaults to a value of 6.
# Line 143 | Line 153 | bsdf2ttree -g 5 -t3 -e 'phong(ix,iy,iz,ox,oy,oz) = if(
153   .SH AUTHOR
154   Greg Ward
155   .SH "SEE ALSO"
156 < bsdf2klems(1), icalc(1), genBSDF(1), pkgBSDF(1)
156 > bsdf2klems(1), icalc(1), genBSDF(1), pkgBSDF(1), rcontrib(1),
157 > rfluxmtx(1), wrapBSDF(1)

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