Changeset 5168 for OpenSceneGraph/trunk/examples/osglightpoint/osglightpoint.cpp

Timestamp:

06/08/06 16:32:02 (7 years ago)

Author:

robert

Message:

From Paul Martz, added support to textured light points into osgSim and OpenFlight? loader, as part of the OpenFlight? v16.0 spec.

Files:

• OpenSceneGraph/trunk/examples/osglightpoint/osglightpoint.cpp (modified) (5 diffs)

OpenSceneGraph/trunk/examples/osglightpoint/osglightpoint.cpp

@@ -8 +8 @@
 #include <osg/ShapeDrawable>
 #include <osg/Notify>
+#include <osg/PointSprite>
+#include <osg/Texture2D>
+#include <osg/BlendFunc>
 
 #include <osgDB/Registry>
@@ -48 +51 @@
 
 #undef INTERPOLATE
+
+bool usePointSprites;
 
 osg::Node* createLightPointsDatabase()
@@ -97 +102 @@
 
         osgSim::LightPointNode* lpn = new osgSim::LightPointNode;
+
+        //
+        osg::StateSet* set = lpn->getOrCreateStateSet();
+
+        if (usePointSprites)
+        {
+            lpn->setPointSprite();
+
+            // Set point sprite texture in LightPointNode StateSet.
+            osg::Texture2D *tex = new osg::Texture2D();
+            tex->setImage(osgDB::readImageFile("Images/particle.rgb"));
+            set->setTextureAttributeAndModes(0, tex, osg::StateAttribute::ON);
+        }
+
+        //set->setMode(GL_BLEND, osg::StateAttribute::ON);
+        //osg::BlendFunc *fn = new osg::BlendFunc();
+        //fn->setFunction(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::DST_ALPHA);
+        //set->setAttributeAndModes(fn, osg::StateAttribute::ON);
+        //
+
         addToLightPointNode(*lpn,start,end,noStepsX);
         
@@ -173 +198 @@
     arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
     arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
+    arguments.getApplicationUsage()->addCommandLineOption("--sprites","Point sprites.");
 
     // construct the viewer.
@@ -189 +215 @@
         return 1;
     }
+
+    usePointSprites = false;
+    while (arguments.read("--sprites")) { usePointSprites = true; };
 
     // any option left unread are converted into errors to write out later.