Changeset 4662 for OpenSceneGraph/trunk/examples/osgpick/osgpick.cpp

Timestamp:

11/02/05 16:23:54 (8 years ago)

Author:

robert

Message:

Added handling of CameraNode? into PickVisitor? in src/osgProducer/Viewer.cpp. This
is unlikely to be the final solution, but does at least fix part of the problem of handling
picking HUD's underneath CameraNodes?.

Files:

• OpenSceneGraph/trunk/examples/osgpick/osgpick.cpp (modified) (6 diffs)

OpenSceneGraph/trunk/examples/osgpick/osgpick.cpp

@@ -26 +26 @@
 #include <osg/Projection>
 #include <osg/MatrixTransform>
+#include <osg/CameraNode>
 #include <osg/io_utils>
 
@@ -109 +110 @@
 
 osg::Node* createHUD(osgText::Text* updateText)
-{    // create the hud. derived from osgHud.cpp
+{
+
+    // create the hud. derived from osgHud.cpp
     // adds a set of quads, each in a separate Geode - which can be picked individually
     // eg to be used as a menuing/help system!
     // Can pick texts too!
-    osg::MatrixTransform* modelview_abs = new osg::MatrixTransform;
-    modelview_abs->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
-    modelview_abs->setMatrix(osg::Matrix::identity());
-    
-    osg::Projection* projection = new osg::Projection;
-    projection->setMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
-    projection->addChild(modelview_abs);
-    
+
+    osg::CameraNode* hudCamera = new osg::CameraNode;
+    hudCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
+    hudCamera->setProjectionMatrixAsOrtho2D(0,1280,0,1024);
+    hudCamera->setViewMatrix(osg::Matrix::identity());
+    hudCamera->setRenderOrder(osg::CameraNode::POST_RENDER);
+    hudCamera->setClearMask(GL_DEPTH_BUFFER_BIT);
     
     std::string timesFont("fonts/times.ttf");
@@ -134 +136 @@
         stateset->setMode(GL_DEPTH_TEST,osg::StateAttribute::OFF);
         geode->setName("simple");
-        modelview_abs->addChild(geode);
+        hudCamera->addChild(geode);
         
         osgText::Text* text = new  osgText::Text;
@@ -173 +175 @@
         quad->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
         geode->addDrawable(quad);
-        modelview_abs->addChild(geode);
+        hudCamera->addChild(geode);
         
         position += delta;
@@ -187 +189 @@
         geode->setName("The text label");
         geode->addDrawable( updateText );
-        modelview_abs->addChild(geode);
+        hudCamera->addChild(geode);
         
         updateText->setCharacterSize(20.0f);
@@ -198 +200 @@
     }    
     
-    return projection;
+    return hudCamera;
 
 }