[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [32412] trunk/blender/source/blender/ render/intern/source/shadeoutput.c: Add note about Inv Quad falloff of lamp that there seems to be a hack in use .

[Nathan Letwory]

Revision: 32412
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=32412
Author:   jesterking
Date:     2010-10-11 11:52:25 +0200 (Mon, 11 Oct 2010)

Log Message:
-----------
Add note about Inv Quad falloff of lamp that there seems to be a hack in use.

Modified Paths:
--------------
    trunk/blender/source/blender/render/intern/source/shadeoutput.c

Modified: trunk/blender/source/blender/render/intern/source/shadeoutput.c
===================================================================
--- trunk/blender/source/blender/render/intern/source/shadeoutput.c	2010-10-11 09:02:19 UTC (rev 32411)
+++ trunk/blender/source/blender/render/intern/source/shadeoutput.c	2010-10-11 09:52:25 UTC (rev 32412)
@@ -1141,6 +1141,11 @@
 					visifac = lar->dist/(lar->dist + dist[0]);
 					break;
 				case LA_FALLOFF_INVSQUARE:
+					/* NOTE: This seems to be a hack since commit r12045 says this
+					 * option is similar to old Quad, but with slight changes.
+					 * Correct inv square would be (which would be old Quad):
+					 * visifac = lar->distkw / (lar->distkw + dist[0]*dist[0]);
+					 */
 					visifac = lar->dist / (lar->dist + dist[0]*dist[0]);
 					break;
 				case LA_FALLOFF_SLIDERS: