From Wojciech Lewandowski, a range of new ShadowMap implementations include View Dependent Shadow Maps - LispSM

From Robert Osfield, refactored Wojciech's submission to integrated with osgShadow and use coding sytle more consistent with rest of OSG.
2008-09-19 19:51:27 +00:00
parent f388d6a938
commit bf15614df6
18 changed files with 6785 additions and 0 deletions
--- a/include/osgShadow/ProjectionShadowMap
+++ b/include/osgShadow/ProjectionShadowMap
@@ -0,0 +1,82 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 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.
+ *
+ * ViewDependentShadow codes Copyright (C) 2008 Wojciech Lewandowski
+ * Thanks to to my company http://www.ai.com.pl for allowing me free this work.
+*/
+
+#ifndef OSGSHADOW_PROJECTIONSHADOWMAP
+#define OSGSHADOW_PROJECTIONSHADOWMAP 1
+
+#include <osgShadow/MinimalShadowMap>
+
+namespace osgShadow {
+
+template< typename MinimalBoundsBaseClass, typename ShadowProjectionAlgorithmClass >
+class OSGSHADOW_EXPORT ProjectionShadowMap : public MinimalBoundsBaseClass
+{
+    public :
+        /** Convenient typedef used in definition of ViewData struct and methods */
+        typedef MinimalBoundsBaseClass                                                     BaseClass;
+        /** Convenient typedef used in definition of ViewData struct and methods */
+        typedef ProjectionShadowMap<MinimalBoundsBaseClass,ShadowProjectionAlgorithmClass> ThisClass;
+
+        /** Classic OSG constructor */
+        ProjectionShadowMap() : BaseClass()
+        {
+        }
+
+        /** Classic OSG cloning constructor */
+        ProjectionShadowMap(
+            const ProjectionShadowMap& copy, 
+            const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : BaseClass(copy,copyop)
+        {
+        }
+
+        /** Declaration of standard OSG object methods */
+        META_Object( ViewDependentShadow, ProjectionShadowMap );
+
+    protected:        
+
+        /** Classic protected OSG destructor */
+        virtual ~ProjectionShadowMap(void)
+        {
+        }
+
+        struct ViewData: public BaseClass::ViewData, 
+                         public ShadowProjectionAlgorithmClass
+        {	
+    #if 0
+            virtual void init( ThisClass * st, osgUtil::CullVisitor * cv );			
+            {
+                BaseClass::ViewData::init( st, cv ); 
+            }
+    #endif
+
+            virtual void frameShadowCastingCamera
+                ( const osg::Camera* cameraMain, osg::Camera* cameraShadow, int pass = 1 )
+            {
+                // Force dependent name lookup
+                ShadowProjectionAlgorithmClass::operator()
+                    ( &this->_sceneReceivingShadowPolytope, cameraMain, cameraShadow );
+
+                // DebugBoundingBox( computeScenePolytopeBounds(), "ProjectionShadowMap" );
+                BaseClass::ViewData::frameShadowCastingCamera( cameraMain, cameraShadow, pass );
+            }
+        };
+
+        META_ViewDependentShadowTechniqueData( ThisClass, typename ThisClass::ViewData )
+};
+
+} // namespace osgShadow
+
+#endif