| 1092 |
|
a parallel BSDF surface may be |
| 1093 |
|
placed slightly less than the given thickness away from the front surface |
| 1094 |
|
to enclose the complex geometry on both sides. |
| 1095 |
+ |
The sign of the thickness is important, as it indicates |
| 1096 |
+ |
whether the proxied geometry is behind the BSDF |
| 1097 |
+ |
surface (when thickness is positive) or in front (when |
| 1098 |
+ |
thickness is negative). |
| 1099 |
|
<p> |
| 1100 |
< |
The second string argument is the name of the BSDF file, which is |
| 1101 |
< |
found in the usual auxiliary locations. |
| 1102 |
< |
The following three string parameters name variables for an "up" vector, |
| 1103 |
< |
which together with the surface normal, define the |
| 1104 |
< |
local coordinate system that orients the BSDF. |
| 1105 |
< |
These variables, along with the thickness, are defined in a function |
| 1106 |
< |
file given as the next string argument. |
| 1107 |
< |
An optional transform is used to scale the thickness and reorient the up vector. |
| 1100 |
> |
The second string argument is the name of the BSDF file, |
| 1101 |
> |
which is found in the usual auxiliary locations. The |
| 1102 |
> |
following three string parameters name variables for an |
| 1103 |
> |
"up" vector, which together with the surface |
| 1104 |
> |
normal, define the local coordinate system that orients the |
| 1105 |
> |
BSDF. These variables, along with the thickness, are defined |
| 1106 |
> |
in a function file given as the next string argument. An |
| 1107 |
> |
optional transform is used to scale the thickness and |
| 1108 |
> |
reorient the up vector. |
| 1109 |
|
<p> |
| 1110 |
< |
If no real arguments are given, the BSDF is used by itself to determine |
| 1111 |
< |
reflection and transmission. |
| 1112 |
< |
If there are at least 3 real arguments, the first triplet is an |
| 1113 |
< |
additional diffuse reflectance for the front side. |
| 1114 |
< |
At least 6 real arguments adds diffuse reflectance to the rear side of the surface. |
| 1115 |
< |
If there are 9 real arguments, the final triplet will be taken as an additional |
| 1116 |
< |
diffuse transmittance. |
| 1117 |
< |
All diffuse components as well as the non-diffuse transmission are |
| 1118 |
< |
modified by patterns applied to this material. |
| 1119 |
< |
The non-diffuse reflection from either side are unaffected. |
| 1120 |
< |
Textures perturb the effective surface normal in the usual way. |
| 1110 |
> |
If no real arguments are given, the BSDF is used by itself |
| 1111 |
> |
to determine reflection and transmission. If there are at |
| 1112 |
> |
least 3 real arguments, the first triplet is an additional |
| 1113 |
> |
diffuse reflectance for the front side. At least 6 real |
| 1114 |
> |
arguments adds diffuse reflectance to the rear side of the |
| 1115 |
> |
surface. If there are 9 real arguments, the final triplet |
| 1116 |
> |
will be taken as an additional diffuse transmittance. All |
| 1117 |
> |
diffuse components as well as the non-diffuse transmission |
| 1118 |
> |
are modified by patterns applied to this material. The |
| 1119 |
> |
non-diffuse reflection from either side are unaffected. |
| 1120 |
> |
Textures perturb the effective surface normal in the usual |
| 1121 |
> |
way. |
| 1122 |
|
<p> |
| 1123 |
< |
The surface normal of this type is not altered to face the incoming ray, |
| 1124 |
< |
so the front and back BSDF reflections may differ. |
| 1125 |
< |
(Transmission is identical front-to-back by physical law.) |
| 1126 |
< |
If back visibility is turned off during rendering and there is no |
| 1127 |
< |
transmission or back-side reflection, only then the surface will be |
| 1128 |
< |
invisible from behind. |
| 1129 |
< |
Unlike other data-driven material types, the BSDF type is fully |
| 1130 |
< |
supported and all parts of the distribution are properly sampled. |
| 1123 |
> |
The surface normal of this type is not altered to face the |
| 1124 |
> |
incoming ray, so the front and back BSDF reflections may |
| 1125 |
> |
differ. (Transmission is identical front-to-back by physical |
| 1126 |
> |
law.) If back visibility is turned off during rendering and |
| 1127 |
> |
there is no transmission or back-side reflection, only then |
| 1128 |
> |
the surface will be invisible from behind. Unlike other |
| 1129 |
> |
data-driven material types, the BSDF type is fully supported |
| 1130 |
> |
and all parts of the distribution are properly sampled. |
| 1131 |
|
<p> |
| 1132 |
|
|
| 1133 |
|
<dt> |
| 1857 |
|
nor may "Radiance" appear in their name, without prior written |
| 1858 |
|
permission of Lawrence Berkeley National Laboratory. |
| 1859 |
|
|
| 1860 |
< |
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| 1860 |
> |
THIS SOFTWARE IS PROVIDED ``AS IS" AND ANY EXPRESSED OR IMPLIED |
| 1861 |
|
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 1862 |
|
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 1863 |
|
DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
| 1896 |
|
</h2> |
| 1897 |
|
<p> |
| 1898 |
|
<ul> |
| 1899 |
+ |
<li>Ward, G., R. Mistrick, E.S. Lee, A. McNeil, J. Jonsson, |
| 1900 |
+ |
"Simulating the Daylight Performance of Complex Fenestration Systems |
| 1901 |
+ |
Using Bidirectional Scattering Distribution Functions within Radiance," |
| 1902 |
+ |
<em>Journal of the Illuminating Engineering Soc. of North America</em>, |
| 1903 |
+ |
April 2011. |
| 1904 |
|
<li>Cater, Kirsten, Alan Chalmers, Greg Ward, |
| 1905 |
|
"<a href="http://www.anyhere.com/gward/papers/egsr2003.pdf">Detail to Attention: |
| 1906 |
|
Exploiting Visual Tasks for Selective Rendering</a>," |
| 1907 |
|
<em>Eurographics Symposium |
| 1908 |
|
on Rendering 2003</em>, June 2003. |
| 1909 |
|
<li>Ward, Greg, Elena Eydelberg-Vileshin, |
| 1910 |
< |
``<a HREF="http://www.anyhere.com/gward/papers/egwr02/index.html">Picture Perfect RGB |
| 1911 |
< |
Rendering Using Spectral Prefiltering and Sharp Color Primaries</a>,'' |
| 1910 |
> |
"<a HREF="http://www.anyhere.com/gward/papers/egwr02/index.html">Picture Perfect RGB |
| 1911 |
> |
Rendering Using Spectral Prefiltering and Sharp Color Primaries</a>," |
| 1912 |
|
Thirteenth Eurographics Workshop on Rendering (2002), |
| 1913 |
|
P. Debevec and S. Gibson (Editors), June 2002. |
| 1914 |
|
<li>Ward, Gregory, |
| 1915 |
< |
``<a HREF="http://www.anyhere.com/gward/papers/cic01.pdf">High Dynamic Range Imaging</a>,'' |
| 1915 |
> |
"<a HREF="http://www.anyhere.com/gward/papers/cic01.pdf">High Dynamic Range Imaging</a>," |
| 1916 |
|
Proceedings of the Ninth Color Imaging Conference, November 2001. |
| 1917 |
|
<li>Ward, Gregory and Maryann Simmons, |
| 1918 |
< |
``<a HREF="http://www.anyhere.com/gward/papers/tog99.pdf"> |
| 1918 |
> |
"<a HREF="http://www.anyhere.com/gward/papers/tog99.pdf"> |
| 1919 |
|
The Holodeck Ray Cache: An Interactive Rendering System for Global Illumination in Nondiffuse |
| 1920 |
< |
Environments</a>,'' ACM Transactions on Graphics, 18(4):361-98, October 1999. |
| 1921 |
< |
<li>Larson, G.W., ``<a HREF="http://www.anyhere.com/gward/papers/ewp98.pdf">The Holodeck: A Parallel |
| 1922 |
< |
Ray-caching Rendering System</a>,'' Proceedings of the Second |
| 1920 |
> |
Environments</a>," ACM Transactions on Graphics, 18(4):361-98, October 1999. |
| 1921 |
> |
<li>Larson, G.W., "<a HREF="http://www.anyhere.com/gward/papers/ewp98.pdf">The Holodeck: A Parallel |
| 1922 |
> |
Ray-caching Rendering System</a>," Proceedings of the Second |
| 1923 |
|
Eurographics Workshop on Parallel Graphics and Visualisation, |
| 1924 |
|
September 1998. |
| 1925 |
|
<li>Larson, G.W. and R.A. Shakespeare, |
| 1927 |
|
the Art and Science of Lighting Visualization</em></a>, |
| 1928 |
|
Morgan Kaufmann Publishers, 1998. |
| 1929 |
|
<li>Larson, G.W., H. Rushmeier, C. Piatko, |
| 1930 |
< |
``<a HREF="http://radsite.lbl.gov/radiance/papers/lbnl39882/tonemap.pdf">A Visibility |
| 1930 |
> |
"<a HREF="http://radsite.lbl.gov/radiance/papers/lbnl39882/tonemap.pdf">A Visibility |
| 1931 |
|
Matching Tone Reproduction Operator for |
| 1932 |
< |
High Dynamic Range Scenes</a>,'' LBNL Technical Report 39882, |
| 1932 |
> |
High Dynamic Range Scenes</a>," LBNL Technical Report 39882, |
| 1933 |
|
January 1997. |
| 1934 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/erw95.1/paper.html">Making |
| 1935 |
< |
Global Illumination User-Friendly</a>,'' Sixth |
| 1934 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/erw95.1/paper.html">Making |
| 1935 |
> |
Global Illumination User-Friendly</a>," Sixth |
| 1936 |
|
Eurographics Workshop on Rendering, Springer-Verlag, |
| 1937 |
|
Dublin, Ireland, June 1995.</li> |
| 1938 |
|
<li>Rushmeier, H., G. Ward, C. Piatko, P. Sanders, B. Rust, |
| 1939 |
< |
``<a HREF="http://radsite.lbl.gov/mgf/compare.html"> |
| 1939 |
> |
"<a HREF="http://radsite.lbl.gov/mgf/compare.html"> |
| 1940 |
|
Comparing Real and Synthetic Images: Some Ideas about |
| 1941 |
< |
Metrics</a>,'' Sixth Eurographics Workshop on Rendering, |
| 1941 |
> |
Metrics</a>," Sixth Eurographics Workshop on Rendering, |
| 1942 |
|
Springer-Verlag, Dublin, Ireland, June 1995.</li> |
| 1943 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.1/paper.html">The RADIANCE |
| 1944 |
< |
Lighting Simulation and Rendering System</a>,'' <em>Computer |
| 1943 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.1/paper.html">The RADIANCE |
| 1944 |
> |
Lighting Simulation and Rendering System</a>," <em>Computer |
| 1945 |
|
Graphics</em>, July 1994.</li> |
| 1946 |
< |
<li>Rushmeier, H., G. Ward, ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.2/energy.html">Energy |
| 1947 |
< |
Preserving Non-Linear Filters</a>,'' <em>Computer |
| 1946 |
> |
<li>Rushmeier, H., G. Ward, "<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.2/energy.html">Energy |
| 1947 |
> |
Preserving Non-Linear Filters</a>," <em>Computer |
| 1948 |
|
Graphics</em>, July 1994.</li> |
| 1949 |
< |
<li>Ward, G., ``A Contrast-Based Scalefactor for Luminance |
| 1950 |
< |
Display,'' <em>Graphics Gems IV</em>, Edited by Paul Heckbert, |
| 1949 |
> |
<li>Ward, G., "A Contrast-Based Scalefactor for Luminance |
| 1950 |
> |
Display," <em>Graphics Gems IV</em>, Edited by Paul Heckbert, |
| 1951 |
|
Academic Press 1994.</li> |
| 1952 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg92/paper.html">Measuring and |
| 1953 |
< |
Modeling Anisotropic Reflection</a>,'' <em>Computer |
| 1952 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/sg92/paper.html">Measuring and |
| 1953 |
> |
Modeling Anisotropic Reflection</a>," <em>Computer |
| 1954 |
|
Graphics</em>, Vol. 26, No. 2, July 1992. </li> |
| 1955 |
< |
<li>Ward, G., P. Heckbert, ``<a HREF="http://radsite.lbl.gov/radiance/papers/erw92/paper.html">Irradiance |
| 1956 |
< |
Gradients</a>,'' Third Annual Eurographics Workshop on |
| 1955 |
> |
<li>Ward, G., P. Heckbert, "<a HREF="http://radsite.lbl.gov/radiance/papers/erw92/paper.html">Irradiance |
| 1956 |
> |
Gradients</a>," Third Annual Eurographics Workshop on |
| 1957 |
|
Rendering, Springer-Verlag, May 1992. </li> |
| 1958 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/erw91/erw91.html">Adaptive Shadow |
| 1959 |
< |
Testing for Ray Tracing</a>'' Photorealistic Rendering in |
| 1958 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/erw91/erw91.html">Adaptive Shadow |
| 1959 |
> |
Testing for Ray Tracing</a>" Photorealistic Rendering in |
| 1960 |
|
Computer Graphics, proceedings of 1991 Eurographics |
| 1961 |
|
Rendering Workshop, edited by P. Brunet and F.W. Jansen, |
| 1962 |
|
Springer-Verlag. </li> |
| 1963 |
< |
<li>Ward, G., ``Visualization,'' <em>Lighting Design and |
| 1963 |
> |
<li>Ward, G., "Visualization," <em>Lighting Design and |
| 1964 |
|
Application</em>, Vol. 20, No. 6, June 1990. </li> |
| 1965 |
< |
<li>Ward, G., F. Rubinstein, R. Clear, ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg88/paper.html">A Ray Tracing Solution for |
| 1966 |
< |
Diffuse Interreflection</a>,'' <em>Computer Graphics</em>, |
| 1965 |
> |
<li>Ward, G., F. Rubinstein, R. Clear, "<a HREF="http://radsite.lbl.gov/radiance/papers/sg88/paper.html">A Ray Tracing Solution for |
| 1966 |
> |
Diffuse Interreflection</a>," <em>Computer Graphics</em>, |
| 1967 |
|
Vol. 22, No. 4, August 1988. </li> |
| 1968 |
< |
<li>Ward, G., F. Rubinstein, ``A New Technique for Computer |
| 1969 |
< |
Simulation of Illuminated Spaces,'' <em>Journal of the |
| 1968 |
> |
<li>Ward, G., F. Rubinstein, "A New Technique for Computer |
| 1969 |
> |
Simulation of Illuminated Spaces," <em>Journal of the |
| 1970 |
|
Illuminating Engineering Society</em>, Vol. 17, No. 1, |
| 1971 |
|
Winter 1988. </li> |
| 1972 |
|
</ul> |
