Revision: 44359
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=44359
Author: dingto
Date: 2012-02-23 09:11:17 +0000 (Thu, 23 Feb 2012)
Log Message:
-----------
Cycles:
* Remove obsolete comments in the Oren Nayar code.
Modified Paths:
--------------
trunk/blender/intern/cycles/kernel/svm/bsdf_oren_nayar.h
Modified: trunk/blender/intern/cycles/kernel/svm/bsdf_oren_nayar.h
===================================================================
--- trunk/blender/intern/cycles/kernel/svm/bsdf_oren_nayar.h 2012-02-23
08:41:13 UTC (rev 44358)
+++ trunk/blender/intern/cycles/kernel/svm/bsdf_oren_nayar.h 2012-02-23
09:11:17 UTC (rev 44359)
@@ -16,31 +16,6 @@
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
-/*
- * An implementation of Oren-Nayar reflectance model, public domain
- *
http://www1.cs.columbia.edu/CAVE/publications/pdfs/Oren_SIGGRAPH94.pdf
- *
- * NOTE:
- * BSDF = A + B * cos() * sin() * tan()
- *
- * The parameter sigma means different from original.
- * A and B are calculated by the following formula:
- * 0 <= sigma <= 1
- * A = 1 / ((1 + sigma / 2) * pi);
- * B = sigma / ((1 + sigma / 2) * pi);
- *
- * This formula is derived as following:
- *
- * 0. Normalize A-term and B-term of BSDF *individually*.
- * B-term is normalized at maximum point: dot(L, N) = 0.
- * A = (1/pi) * A'
- * B = (2/pi) * B'
- *
- * 1. Solve the following equation:
- * A' + B' = 1
- * B / A = sigma
- */
-
#ifndef __BSDF_OREN_NAYAR_H__
#define __BSDF_OREN_NAYAR_H__
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