--- ray/doc/ray.html 2016/07/10 23:41:37 1.23
+++ ray/doc/ray.html 2021/11/16 23:12:22 1.30
@@ -1,8 +1,8 @@
-
+
-The RADIANCE 5.1 Synthetic Imaging System
+The RADIANCE 5.4 Synthetic Imaging System
@@ -10,7 +10,7 @@ The RADIANCE 5.1 Synthetic Imaging System
-The RADIANCE 5.1 Synthetic Imaging System
+The RADIANCE 5.4 Synthetic Imaging System
@@ -83,7 +83,7 @@ The diagram in Figure 1 shows the flow between program
(ovals).
The central program is rpict, which produces a picture from a scene
description.
-Rview is a variation of rpict that computes and displays images
+Rvu is a variation of rpict that computes and displays images
interactively, and rtrace computes single ray values.
Other programs (not shown) connect many of these elements together,
such as the executive programs
@@ -1154,6 +1154,38 @@ unless the line integrals consider enclosed geometry.
+
+ aBSDF
+
+
+
+ The aBSDF material is identical to the BSDF type with two
+ important differences. First, proxy geometry is not
+ supported, so there is no thickness parameter. Second, an
+ aBSDF is assumed to have some specular through component
+ (the ’a’ stands for "aperture"),
+ which is treated specially during the direct calculation
+ and when viewing the material. Based on the BSDF data, the
+ coefficient of specular transmission is determined and used
+ for modifying unscattered shadow and view rays.
+
+
+ mod aBSDF id
+ 5+ BSDFfile ux uy uz funcfile transform
+ 0
+ 0|3|6|9
+ rfdif gfdif bfdif
+ rbdif gbdif bbdif
+ rtdif gtdif btdif
+
+
+
+ If a material has no specular transmitted component, it is
+ much better to use the BSDF type with a zero thickness
+ than to use aBSDF.
+
+
+
Antimatter
@@ -1775,7 +1807,7 @@ The details of this process are not important, but
directs the use of a scene description.
-
-Rview is ray-tracing program for viewing a scene interactively.
+Rvu is ray-tracing program for viewing a scene interactively.
When the user specifies a new perspective, rvu quickly displays a rough image on the terminal,
then progressively increases the resolution as the user looks on.
He can select a particular section of the image to improve, or move to a different view and start over.
@@ -1811,7 +1843,7 @@ Pictures may be displayed directly under X11 using the
or converted a standard image format using one of the following
translators:
- - Ra_bmp
+
- Ra_bmp
converts to and from BMP image format.
- Ra_ppm
converts to and from Poskanzer Portable Pixmap formats.
@@ -1840,7 +1872,7 @@ or converted a standard image format using one of the
The Radiance Software License, Version 1.0
-Copyright (c) 1990 - 2014 The Regents of the University of California,
+Copyright (c) 1990 - 2021 The Regents of the University of California,
through Lawrence Berkeley National Laboratory. All rights reserved.
Redistribution and use in source and binary forms, with or without
@@ -1913,6 +1945,32 @@ Ecole Polytechnique Federale de Lausanne (EPFL Unive
+ - Wang, Taoning, Gregory Ward, Eleanor Lee,
+ "Efficient
+ modeling of optically-complex, non-coplanar exterior shading:
+ Validation of matrix algebraic methods"
+ Energy & Buildings, vol. 174, pp. 464-83, Sept. 2018.
+
- Lee, Eleanor S., David Geisler-Moroder, Gregory Ward,
+ "Modeling
+ the direct sun component in buildings using matrix
+ algebraic approaches: Methods and
+ validation," Solar Energy,
+ vol. 160, 15 January 2018, pp 380-395.
+
- Narain, Rahul, Rachel A. Albert, Abdullah Bulbul,
+ Gregory J. Ward, Marty Banks, James F. O'Brien,
+ "Optimal
+ Presentation of Imagery with Focus
+ Cues on Multi-Plane Displays,"
+ SIGGRAPH 2015.
+
- Ward, Greg, Murat Kurt, and Nicolas Bonneel,
+ "Reducing
+ Anisotropic BSDF Measurement to Common Practice,"
+ Workshop on Material Appearance Modeling, 2014.
+
- Banks, Martin, Abdullah Bulbul, Rachel Albert, Rahul Narain,
+ James F. O'Brien, Gregory Ward,
+ "The
+ Perception of Surface Material from Disparity and Focus Cues,"
+ VSS 2014.
- McNeil, A., C.J. Jonsson, D. Appelfeld, G. Ward, E.S. Lee,
"
A validation of a ray-tracing tool used to generate