[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [16234] branches/soc-2008-unclezeiv/source /blender/render/intern/source/lightcuts.c: Added indirect lighting generation for omnidirectional lights ( this completes support for the various light types but, again, several issues are still there)

[Davide Vercelli]

Revision: 16234
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=16234
Author:   unclezeiv
Date:     2008-08-22 22:03:33 +0200 (Fri, 22 Aug 2008)

Log Message:
-----------
Added indirect lighting generation for omnidirectional lights (this completes support for the various light types but, again, several issues are still there)

Modified Paths:
--------------
    branches/soc-2008-unclezeiv/source/blender/render/intern/source/lightcuts.c

Modified: branches/soc-2008-unclezeiv/source/blender/render/intern/source/lightcuts.c
===================================================================
--- branches/soc-2008-unclezeiv/source/blender/render/intern/source/lightcuts.c	2008-08-22 18:28:34 UTC (rev 16233)
+++ branches/soc-2008-unclezeiv/source/blender/render/intern/source/lightcuts.c	2008-08-22 20:03:33 UTC (rev 16234)
@@ -1071,6 +1071,19 @@
 	dir[1]= sinf(phi) * sin_th;
 }
 
+static void get_random_direction(float *dir)
+{
+	float theta, phi, s;
+	
+	theta= 2.0f * M_PI * BLI_frand();
+	phi= acosf(2.0f * BLI_frand() - 1.0f);
+	s= sinf(phi);
+	
+	dir[0]= cosf(theta) * s;
+	dir[1]= sinf(theta) * s;
+	dir[2]= cosf(phi);
+}
+
 /* XXX: terrible hack currently needed by get_bounce_color */
 extern struct Render R;
 
@@ -1246,8 +1259,10 @@
 		}
 		break;
 	case LA_LOCAL:
-		/* TODO: indirect lighting for omnidirectional lamps */
-		return;
+		VECCOPY(isec.start, orig->co);
+		get_random_direction(isec.vec);
+		VECADDFAC(isec.end, isec.start, isec.vec, lcd->scene_diag);
+		break;
 	}
 	
 	if (!RE_ray_tree_intersect(re->raytree, &isec)) {