[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [46288] trunk/blender/intern/cycles/kernel /kernel_montecarlo.h: small fix for equisolid fisheye (cycles)

[Dalai Felinto]

Revision: 46288
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=46288
Author:   dfelinto
Date:     2012-05-04 16:29:41 +0000 (Fri, 04 May 2012)
Log Message:
-----------
small fix for equisolid fisheye (cycles)
the FOV formular is: R = 2 * lens * sin (theta / 2)
in this case theta is fov/2 already, thus the fix

Modified Paths:
--------------
    trunk/blender/intern/cycles/kernel/kernel_montecarlo.h

Modified: trunk/blender/intern/cycles/kernel/kernel_montecarlo.h
===================================================================
--- trunk/blender/intern/cycles/kernel/kernel_montecarlo.h	2012-05-04 16:20:51 UTC (rev 46287)
+++ trunk/blender/intern/cycles/kernel/kernel_montecarlo.h	2012-05-04 16:29:41 UTC (rev 46288)
@@ -255,7 +255,7 @@
 	u = (u - 0.5f) * width;
 	v = (v - 0.5f) * height;
 
-	float rmax = 2.f * lens * sinf(fov * 0.5f);
+	float rmax = 2.f * lens * sinf(fov * 0.25f);
 	float r = sqrt(u*u + v*v);
 
 	if (r > rmax) {