Additions since the CVS back up was made.

2003-06-24 21:57:13 +00:00
parent 15f88f35b2
commit d70ab592ed
53 changed files with 2630 additions and 124 deletions
--- a/examples/osgslideshow/DefaultPresentation.cpp
+++ b/examples/osgslideshow/DefaultPresentation.cpp
@@ -0,0 +1,131 @@
+#include <osgDB/ReadFile>
+
+#include <osg/Switch>
+#include <osg/Texture2D>
+#include <osg/MatrixTransform>
+#include <osg/Quat>
+#include <osg/Geometry>
+#include <osg/Geode>
+
+osg::MatrixTransform* createPositionedAndScaledModel(osg::Node* model,const osg::Vec3& pos, float radius, osg::Quat rotation)
+{
+    osg::MatrixTransform* transform = new osg::MatrixTransform;
+    
+    const osg::BoundingSphere& bs = model->getBound();
+    
+    transform->setDataVariance(osg::Object::STATIC);
+    transform->setMatrix(osg::Matrix::translate(-bs.center())*
+                         osg::Matrix::scale(radius/bs.radius(),radius/bs.radius(),radius/bs.radius())*
+                         osg::Matrix::rotate(rotation)*
+                         osg::Matrix::translate(pos));
+                         
+    transform->addChild(model);
+    
+    return transform;
+}
+
+
+osg::Node* createDefaultPresentation()
+{
+    osg::Switch* presentation = new osg::Switch;
+    presentation->setName("Presentation default");
+    
+    float width = 1280.0f;
+    float height = 1024.0f;
+    
+    osg::Geometry* backgroundQuad = osg::createTexturedQuadGeometry(osg::Vec3(0.0f,0.0f,0.0f),
+                                                    osg::Vec3(width,0.0f,0.0f),
+                                                    osg::Vec3(0.0f,0.0f,height));
+                
+    osg::Geode* background = new osg::Geode;
+
+    background->getOrCreateStateSet()->setTextureAttributeAndModes(0,
+                new osg::Texture2D(osgDB::readImageFile("lz.rgb")),
+                osg::StateAttribute::ON);
+
+    background->addDrawable(backgroundQuad);
+
+    osg::Geode* background2 = new osg::Geode;
+    
+    background2->getOrCreateStateSet()->setTextureAttributeAndModes(0,
+                new osg::Texture2D(osgDB::readImageFile("reflect.rgb")),
+                osg::StateAttribute::ON);
+                
+    background2->addDrawable(backgroundQuad);
+
+    {
+        osg::Switch* slide = new osg::Switch;
+        slide->setName("Slide 0");
+        
+        {
+            osg::Group* group = new osg::Group;
+            group->setName("Layer 0");
+            
+            group->addChild(background);
+            
+            
+            slide->addChild(group);
+        }
+       
+        {
+            osg::Group* group = new osg::Group;
+            group->setName("Layer 1");
+            
+            group->addChild(background2);
+
+            slide->addChild(group);
+        }
+        
+        {
+            osg::Group* group = new osg::Group;
+            group->setName("Layer 2");
+            
+            group->addChild(background);
+            
+            group->addChild(createPositionedAndScaledModel(osgDB::readNodeFile("cow.osg"),
+                                                           osg::Vec3(600.0f,0.0f,600.0f),500.0f,
+                                                           osg::Quat()));
+
+            slide->addChild(group);
+        }
+        
+        presentation->addChild(slide);        
+        
+    }
+    
+    {
+        osg::Switch* slide = new osg::Switch;
+        slide->setName("Slide 1");
+        
+        {
+            osg::Group* group = new osg::Group;
+            group->setName("Layer 0");
+            
+            group->addChild(background);
+            
+            group->addChild(createPositionedAndScaledModel(osgDB::readNodeFile("glider.osg"),
+                                                           osg::Vec3(600.0f,0.0f,600.0f),500.0f,
+                                                           osg::Quat()));
+
+            slide->addChild(group);
+        }
+        
+        {
+            osg::Group* group = new osg::Group;
+            group->setName("Layer 1");
+            
+            group->addChild(background2);
+            
+            group->addChild(createPositionedAndScaledModel(osgDB::readNodeFile("Town.osg"),
+                                                           osg::Vec3(600.0f,0.0f,600.0f),500.0f,
+                                                           osg::Quat()));
+
+            slide->addChild(group);
+        }
+
+        presentation->addChild(slide);        
+        
+    }
+
+    return presentation;
+}