From c225f2758cb2b78249df3ed4d4a12e757754c6f3 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 19 Dec 2011 09:09:30 +0000
Subject: [PATCH] Added --num-sm and --parallel-split and --cascaded command
 line options to set the appriopriate ViewDependentShadowMap settings.

---
 examples/osgshadow/osgshadow.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/examples/osgshadow/osgshadow.cpp b/examples/osgshadow/osgshadow.cpp
index 03eb15099..f28f3fa42 100644
--- a/examples/osgshadow/osgshadow.cpp
+++ b/examples/osgshadow/osgshadow.cpp
@@ -931,6 +931,13 @@ int main(int argc, char** argv)
         double n=0.0;
         if (arguments.read("-n",n)) settings->setMinimumShadowMapNearFarRatio(n);
 
+        unsigned int numShadowMaps;
+        if (arguments.read("--num-sm",numShadowMaps)) settings->setNumShadowMapsPerLight(numShadowMaps);
+
+        if (arguments.read("--parallel-split") || arguments.read("--ps") ) settings->setMultipleShadowMapHint(osgShadow::ShadowSettings::PARALLEL_SPLIT);
+        if (arguments.read("--cascaded")) settings->setMultipleShadowMapHint(osgShadow::ShadowSettings::CASCADED);
+
+
         int mapres = 1024;
         while (arguments.read("--mapres", mapres))
             settings->setTextureSize(osg::Vec2s(mapres,mapres));