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The RADIANCE 4.1 Synthetic Imaging System |
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The RADIANCE 5.1 Synthetic Imaging System |
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</title> |
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</head> |
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<body> |
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<h1> |
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The RADIANCE 4.1 Synthetic Imaging System |
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The RADIANCE 5.1 Synthetic Imaging System |
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</h1> |
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<p> |
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<dd> |
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Trans2 is the anisotropic version of <a HREF="#Trans">trans</a>. |
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The string arguments are the same as for plastic2, and the real arguments are the same as for trans but with an additional roughness value. |
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The string arguments are the same as for <a HREF="#Plastic2">plastic2</a>, |
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and the real arguments are the same as for trans but with an additional roughness value. |
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<pre> |
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mod trans2 id |
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<p> |
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<dt> |
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<a NAME="Ashik2"> |
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<b>Ashik2</b> |
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</a> |
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|
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<dd> |
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Ashik2 is the anisotropic reflectance model by Ashikhmin & Shirley. |
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The string arguments are the same as for <a HREF="#Plastic2">plastic2</a>, but the real |
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arguments have additional flexibility to specify the specular color. |
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Also, rather than roughness, specular power is used, which has no |
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physical meaning other than larger numbers are equivalent to a smoother |
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surface. |
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<pre> |
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mod ashik2 id |
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4+ ux uy uz funcfile transform |
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0 |
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8 dred dgrn dblu sred sgrn sblu u-power v-power |
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</pre> |
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|
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<p> |
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|
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<dt> |
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<a NAME="Dielectric"> |
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<b>Dielectric</b> |
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</a> |
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a parallel BSDF surface may be |
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placed slightly less than the given thickness away from the front surface |
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to enclose the complex geometry on both sides. |
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The sign of the thickness is important, as it indicates |
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whether the proxied geometry is behind the BSDF |
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surface (when thickness is positive) or in front (when |
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thickness is negative). |
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<p> |
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The second string argument is the name of the BSDF file, which is |
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found in the usual auxiliary locations. |
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The following three string parameters name variables for an "up" vector, |
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which together with the surface normal, define the |
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local coordinate system that orients the BSDF. |
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These variables, along with the thickness, are defined in a function |
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file given as the next string argument. |
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An optional transform is used to scale the thickness and reorient the up vector. |
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The second string argument is the name of the BSDF file, |
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which is found in the usual auxiliary locations. The |
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following three string parameters name variables for an |
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"up" vector, which together with the surface |
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normal, define the local coordinate system that orients the |
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BSDF. These variables, along with the thickness, are defined |
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in a function file given as the next string argument. An |
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optional transform is used to scale the thickness and |
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reorient the up vector. |
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<p> |
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If no real arguments are given, the BSDF is used by itself to determine |
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reflection and transmission. |
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If there are at least 3 real arguments, the first triplet is an |
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additional diffuse reflectance for the front side. |
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At least 6 real arguments adds diffuse reflectance to the rear side of the surface. |
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If there are 9 real arguments, the final triplet will be taken as an additional |
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diffuse transmittance. |
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All diffuse components as well as the non-diffuse transmission are |
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modified by patterns applied to this material. |
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The non-diffuse reflection from either side are unaffected. |
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Textures perturb the effective surface normal in the usual way. |
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If no real arguments are given, the BSDF is used by itself |
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to determine reflection and transmission. If there are at |
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least 3 real arguments, the first triplet is an additional |
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diffuse reflectance for the front side. At least 6 real |
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arguments adds diffuse reflectance to the rear side of the |
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surface. If there are 9 real arguments, the final triplet |
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will be taken as an additional diffuse transmittance. All |
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diffuse components as well as the non-diffuse transmission |
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are modified by patterns applied to this material. The |
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non-diffuse reflection from either side are unaffected. |
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Textures perturb the effective surface normal in the usual |
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way. |
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<p> |
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The surface normal of this type is not altered to face the incoming ray, |
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so the front and back BSDF reflections may differ. |
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(Transmission is identical front-to-back by physical law.) |
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If back visibility is turned off during rendering and there is no |
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transmission or back-side reflection, only then the surface will be |
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invisible from behind. |
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Unlike other data-driven material types, the BSDF type is fully |
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supported and all parts of the distribution are properly sampled. |
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The surface normal of this type is not altered to face the |
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incoming ray, so the front and back BSDF reflections may |
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differ. (Transmission is identical front-to-back by physical |
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law.) If back visibility is turned off during rendering and |
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there is no transmission or back-side reflection, only then |
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the surface will be invisible from behind. Unlike other |
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data-driven material types, the BSDF type is fully supported |
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and all parts of the distribution are properly sampled. |
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<p> |
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|
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<dt> |
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</h4> |
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|
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A mixture is a blend of one or more materials or textures and patterns. |
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Blended materials should not be light source types or virtual source types. |
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The basic types are given below. |
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|
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<p> |
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arguments, the red, green and blue values |
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corresponding to the pixel at (u,v). |
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|
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</dl> |
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<p> |
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|
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<dt> |
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or converted a standard image format using one of the following |
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<b>translators</b>: |
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<ul> |
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<li> <b>Ra_avs</b> |
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converts to and from AVS image format. |
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<li> <a HREF="../man_html/ra_pict.1.html"><b>Ra_pict</b></a> |
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converts to Macintosh 32-bit PICT2 format. |
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<li> <a HREF="../man_html/ra_bmp.1.html"><b>Ra_bmp</b> |
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converts to and from BMP image format. |
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<li> <a HREF="../man_html/ra_ppm.1.html"><b>Ra_ppm</b></a> |
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converts to and from Poskanzer Portable Pixmap formats. |
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<li> <a HREF="../man_html/ra_pr.1.html"><b>Ra_pr</b></a> |
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converts to and from Sun 8-bit rasterfile format. |
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<li> <a HREF="../man_html/ra_pr24.1.html"><b>Ra_pr24</b></a> |
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converts to and from Sun 24-bit rasterfile format. |
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<li> <a HREF="../man_html/ra_ps.1.html"><b>Ra_ps</b></a> |
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converts to PostScript color and greyscale formats. |
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<li> <a HREF="../man_html/ra_rgbe.1.html"><b>Ra_rgbe</b></a> |
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<pre> |
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The Radiance Software License, Version 1.0 |
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|
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Copyright (c) 1990 - 2010 The Regents of the University of California, |
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Copyright (c) 1990 - 2014 The Regents of the University of California, |
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through Lawrence Berkeley National Laboratory. All rights reserved. |
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|
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Redistribution and use in source and binary forms, with or without |
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nor may "Radiance" appear in their name, without prior written |
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permission of Lawrence Berkeley National Laboratory. |
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|
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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THIS SOFTWARE IS PROVIDED ``AS IS" AND ANY EXPRESSED OR IMPLIED |
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
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</h2> |
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<p> |
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<ul> |
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<li>McNeil, A., C.J. Jonsson, D. Appelfeld, G. Ward, E.S. Lee, |
1917 |
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"<a href="http://gaia.lbl.gov/btech/papers/4414.pdf"> |
1918 |
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A validation of a ray-tracing tool used to generate |
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bi-directional scattering distribution functions for |
1920 |
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complex fenestration systems</a>," |
1921 |
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<em>Solar Energy</em>, 98, 404-14, |
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November 2013. |
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<li>Ward, G., R. Mistrick, E.S. Lee, A. McNeil, J. Jonsson, |
1924 |
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"<a href="http://gaia.lbl.gov/btech/papers/4414.pdf">Simulating |
1925 |
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the Daylight Performance of Complex Fenestration Systems |
1926 |
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Using Bidirectional Scattering Distribution Functions within |
1927 |
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Radiance</a>," |
1928 |
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<em>Leukos</em>, 7(4) |
1929 |
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April 2011. |
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<li>Cater, Kirsten, Alan Chalmers, Greg Ward, |
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"<a href="http://www.anyhere.com/gward/papers/egsr2003.pdf">Detail to Attention: |
1932 |
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Exploiting Visual Tasks for Selective Rendering</a>," |
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<em>Eurographics Symposium |
1934 |
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on Rendering 2003</em>, June 2003. |
1935 |
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<li>Ward, Greg, Elena Eydelberg-Vileshin, |
1936 |
< |
``<a HREF="http://www.anyhere.com/gward/papers/egwr02/index.html">Picture Perfect RGB |
1937 |
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Rendering Using Spectral Prefiltering and Sharp Color Primaries</a>,'' |
1936 |
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"<a HREF="http://www.anyhere.com/gward/papers/egwr02/index.html">Picture Perfect RGB |
1937 |
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Rendering Using Spectral Prefiltering and Sharp Color Primaries</a>," |
1938 |
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Thirteenth Eurographics Workshop on Rendering (2002), |
1939 |
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P. Debevec and S. Gibson (Editors), June 2002. |
1940 |
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<li>Ward, Gregory, |
1941 |
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``<a HREF="http://www.anyhere.com/gward/papers/cic01.pdf">High Dynamic Range Imaging</a>,'' |
1941 |
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"<a HREF="http://www.anyhere.com/gward/papers/cic01.pdf">High Dynamic Range Imaging</a>," |
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Proceedings of the Ninth Color Imaging Conference, November 2001. |
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<li>Ward, Gregory and Maryann Simmons, |
1944 |
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``<a HREF="http://www.anyhere.com/gward/papers/tog99.pdf"> |
1944 |
> |
"<a HREF="http://www.anyhere.com/gward/papers/tog99.pdf"> |
1945 |
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The Holodeck Ray Cache: An Interactive Rendering System for Global Illumination in Nondiffuse |
1946 |
< |
Environments</a>,'' ACM Transactions on Graphics, 18(4):361-98, October 1999. |
1947 |
< |
<li>Larson, G.W., ``<a HREF="http://www.anyhere.com/gward/papers/ewp98.pdf">The Holodeck: A Parallel |
1948 |
< |
Ray-caching Rendering System</a>,'' Proceedings of the Second |
1946 |
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Environments</a>," ACM Transactions on Graphics, 18(4):361-98, October 1999. |
1947 |
> |
<li>Larson, G.W., "<a HREF="http://www.anyhere.com/gward/papers/ewp98.pdf">The Holodeck: A Parallel |
1948 |
> |
Ray-caching Rendering System</a>," Proceedings of the Second |
1949 |
|
Eurographics Workshop on Parallel Graphics and Visualisation, |
1950 |
|
September 1998. |
1951 |
|
<li>Larson, G.W. and R.A. Shakespeare, |
1953 |
|
the Art and Science of Lighting Visualization</em></a>, |
1954 |
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Morgan Kaufmann Publishers, 1998. |
1955 |
|
<li>Larson, G.W., H. Rushmeier, C. Piatko, |
1956 |
< |
``<a HREF="http://radsite.lbl.gov/radiance/papers/lbnl39882/tonemap.pdf">A Visibility |
1956 |
> |
"<a HREF="http://radsite.lbl.gov/radiance/papers/lbnl39882/tonemap.pdf">A Visibility |
1957 |
|
Matching Tone Reproduction Operator for |
1958 |
< |
High Dynamic Range Scenes</a>,'' LBNL Technical Report 39882, |
1958 |
> |
High Dynamic Range Scenes</a>," LBNL Technical Report 39882, |
1959 |
|
January 1997. |
1960 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/erw95.1/paper.html">Making |
1961 |
< |
Global Illumination User-Friendly</a>,'' Sixth |
1960 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/erw95.1/paper.html">Making |
1961 |
> |
Global Illumination User-Friendly</a>," Sixth |
1962 |
|
Eurographics Workshop on Rendering, Springer-Verlag, |
1963 |
|
Dublin, Ireland, June 1995.</li> |
1964 |
|
<li>Rushmeier, H., G. Ward, C. Piatko, P. Sanders, B. Rust, |
1965 |
< |
``<a HREF="http://radsite.lbl.gov/mgf/compare.html"> |
1965 |
> |
"<a HREF="http://radsite.lbl.gov/mgf/compare.html"> |
1966 |
|
Comparing Real and Synthetic Images: Some Ideas about |
1967 |
< |
Metrics</a>,'' Sixth Eurographics Workshop on Rendering, |
1967 |
> |
Metrics</a>," Sixth Eurographics Workshop on Rendering, |
1968 |
|
Springer-Verlag, Dublin, Ireland, June 1995.</li> |
1969 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.1/paper.html">The RADIANCE |
1970 |
< |
Lighting Simulation and Rendering System</a>,'' <em>Computer |
1969 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.1/paper.html">The RADIANCE |
1970 |
> |
Lighting Simulation and Rendering System</a>," <em>Computer |
1971 |
|
Graphics</em>, July 1994.</li> |
1972 |
< |
<li>Rushmeier, H., G. Ward, ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.2/energy.html">Energy |
1973 |
< |
Preserving Non-Linear Filters</a>,'' <em>Computer |
1972 |
> |
<li>Rushmeier, H., G. Ward, "<a HREF="http://radsite.lbl.gov/radiance/papers/sg94.2/energy.html">Energy |
1973 |
> |
Preserving Non-Linear Filters</a>," <em>Computer |
1974 |
|
Graphics</em>, July 1994.</li> |
1975 |
< |
<li>Ward, G., ``A Contrast-Based Scalefactor for Luminance |
1976 |
< |
Display,'' <em>Graphics Gems IV</em>, Edited by Paul Heckbert, |
1975 |
> |
<li>Ward, G., "A Contrast-Based Scalefactor for Luminance |
1976 |
> |
Display," <em>Graphics Gems IV</em>, Edited by Paul Heckbert, |
1977 |
|
Academic Press 1994.</li> |
1978 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg92/paper.html">Measuring and |
1979 |
< |
Modeling Anisotropic Reflection</a>,'' <em>Computer |
1978 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/sg92/paper.html">Measuring and |
1979 |
> |
Modeling Anisotropic Reflection</a>," <em>Computer |
1980 |
|
Graphics</em>, Vol. 26, No. 2, July 1992. </li> |
1981 |
< |
<li>Ward, G., P. Heckbert, ``<a HREF="http://radsite.lbl.gov/radiance/papers/erw92/paper.html">Irradiance |
1982 |
< |
Gradients</a>,'' Third Annual Eurographics Workshop on |
1981 |
> |
<li>Ward, G., P. Heckbert, "<a HREF="http://radsite.lbl.gov/radiance/papers/erw92/paper.html">Irradiance |
1982 |
> |
Gradients</a>," Third Annual Eurographics Workshop on |
1983 |
|
Rendering, Springer-Verlag, May 1992. </li> |
1984 |
< |
<li>Ward, G., ``<a HREF="http://radsite.lbl.gov/radiance/papers/erw91/erw91.html">Adaptive Shadow |
1985 |
< |
Testing for Ray Tracing</a>'' Photorealistic Rendering in |
1984 |
> |
<li>Ward, G., "<a HREF="http://radsite.lbl.gov/radiance/papers/erw91/erw91.html">Adaptive Shadow |
1985 |
> |
Testing for Ray Tracing</a>" Photorealistic Rendering in |
1986 |
|
Computer Graphics, proceedings of 1991 Eurographics |
1987 |
|
Rendering Workshop, edited by P. Brunet and F.W. Jansen, |
1988 |
|
Springer-Verlag. </li> |
1989 |
< |
<li>Ward, G., ``Visualization,'' <em>Lighting Design and |
1989 |
> |
<li>Ward, G., "Visualization," <em>Lighting Design and |
1990 |
|
Application</em>, Vol. 20, No. 6, June 1990. </li> |
1991 |
< |
<li>Ward, G., F. Rubinstein, R. Clear, ``<a HREF="http://radsite.lbl.gov/radiance/papers/sg88/paper.html">A Ray Tracing Solution for |
1992 |
< |
Diffuse Interreflection</a>,'' <em>Computer Graphics</em>, |
1991 |
> |
<li>Ward, G., F. Rubinstein, R. Clear, "<a HREF="http://radsite.lbl.gov/radiance/papers/sg88/paper.html">A Ray Tracing Solution for |
1992 |
> |
Diffuse Interreflection</a>," <em>Computer Graphics</em>, |
1993 |
|
Vol. 22, No. 4, August 1988. </li> |
1994 |
< |
<li>Ward, G., F. Rubinstein, ``A New Technique for Computer |
1995 |
< |
Simulation of Illuminated Spaces,'' <em>Journal of the |
1994 |
> |
<li>Ward, G., F. Rubinstein, "A New Technique for Computer |
1995 |
> |
Simulation of Illuminated Spaces," <em>Journal of the |
1996 |
|
Illuminating Engineering Society</em>, Vol. 17, No. 1, |
1997 |
|
Winter 1988. </li> |
1998 |
|
</ul> |