Changeset 12486 for OpenSceneGraph/trunk/examples/osgvolume/osgvolume.cpp

Timestamp:

06/03/11 17:58:36 (2 years ago)

Author:

robert

Message:

Added support for --tf-255 transfer function files

Files:

• OpenSceneGraph/trunk/examples/osgvolume/osgvolume.cpp (modified) (3 diffs)

OpenSceneGraph/trunk/examples/osgvolume/osgvolume.cpp

@@ -843 +843 @@
 
 
-osg::TransferFunction1D* readTransferFunctionFile(const std::string& filename)
+osg::TransferFunction1D* readTransferFunctionFile(const std::string& filename, float colorScale=1.0f)
 {
     std::string foundFile = osgDB::findDataFile(filename);
@@ -863 +863 @@
         {
             std::cout<<"value = "<<value<<" ("<<red<<", "<<green<<", "<<blue<<", "<<alpha<<")"<<std::endl;
-            colorMap[value] = osg::Vec4(red,green,blue,alpha);
+            colorMap[value] = osg::Vec4(red*colorScale,green*colorScale,blue*colorScale,alpha*colorScale);
         }
     }
@@ -1052 +1052 @@
         transferFunction = readTransferFunctionFile(tranferFunctionFile);
     }
+    while (arguments.read("--tf-255",tranferFunctionFile))
+    {
+        transferFunction = readTransferFunctionFile(tranferFunctionFile,1.0f/255.0f);
+    }
 
     while(arguments.read("--test"))