Moved ViewDependetShadowMap parameter settings into a dedicated ShadowSettings object in prep for making it possible to scale the API to handle multiple lights and multiple shadow maps per light.

src/osgShadow/ShadowSettings.cpp

@@ -0,0 +1,44 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2011 Robert Osfield
+ *
+ * This library is open source and may be redistributed and/or modified under
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include <osgShadow/ShadowSettings>
+
+using namespace osgShadow;
+
+ShadowSettings::ShadowSettings():
+    _baseShadowTextureUnit(1),
+    _textureSize(2048,2048),
+    _minimumShadowMapNearFarRatio(0.01),
+    _shadowMapProjectionHint(PERSPECTIVE_SHADOW_MAP),
+    _perspectiveShadowMapCutOffAngle(2.0),
+    _shaderHint(NO_SHADERS),
+//    _shaderHint(PROVIDE_FRAGMENT_SHADER),
+    _debugDraw(false)
+{
+}
+
+ShadowSettings::ShadowSettings(const ShadowSettings& ss, const osg::CopyOp& copyop):
+    Object(ss,copyop),
+    _baseShadowTextureUnit(ss._baseShadowTextureUnit),
+    _textureSize(ss._textureSize),
+    _minimumShadowMapNearFarRatio(ss._minimumShadowMapNearFarRatio),
+    _shadowMapProjectionHint(ss._shadowMapProjectionHint),
+    _perspectiveShadowMapCutOffAngle(ss._perspectiveShadowMapCutOffAngle),
+    _shaderHint(ss._shaderHint),
+    _debugDraw(ss._debugDraw)
+{
+}
+
+ShadowSettings::~ShadowSettings()
+{
+}