--- ray/doc/ray.html 2015/09/25 23:01:12 1.21
+++ ray/doc/ray.html 2016/07/10 23:41:37 1.23
@@ -1,5 +1,5 @@
-
+
The RADIANCE 5.1 Synthetic Imaging System
@@ -798,7 +798,8 @@ unless the line integrals consider enclosed geometry.
<dd>
Trans2 is the anisotropic version of <a HREF="#Trans">trans</a>.
- 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.
+ The string arguments are the same as for <a HREF="#Plastic2">plastic2</a>,
+ and the real arguments are the same as for trans but with an additional roughness value.
<pre>
mod trans2 id
@@ -810,6 +811,27 @@ unless the line integrals consider enclosed geometry.
<p>
<dt>
+ <a NAME="Ashik2">
+ <b>Ashik2</b>
+ </a>
+
+<dd>
+ Ashik2 is the anisotropic reflectance model by Ashikhmin & Shirley.
+ The string arguments are the same as for <a HREF="#Plastic2">plastic2</a>, but the real
+ arguments have additional flexibility to specify the specular color.
+ Also, rather than roughness, specular power is used, which has no
+ physical meaning other than larger numbers are equivalent to a smoother
+ surface.
+<pre>
+ mod ashik2 id
+ 4+ ux uy uz funcfile transform
+ 0
+ 8 dred dgrn dblu sred sgrn sblu u-power v-power
+</pre>
+
+<p>
+
+<dt>
<a NAME="Dielectric">
<b>Dielectric</b>
</a>
@@ -1415,6 +1437,7 @@ or:
</h4>
A mixture is a blend of one or more materials or textures and patterns.
+Blended materials should not be light source types or virtual source types.
The basic types are given below.
<p>
@@ -1487,7 +1510,6 @@ A mixfunc mixes two modifiers procedurally. It i
arguments, the red, green and blue values
corresponding to the pixel at (u,v).
-</dl>
<p>
<dt>