GL resource cleanup

free resources on exit

DepthPeeling.cc

@@ -240,6 +240,27 @@ void DepthPeeling::initializePlugin()
   ACG::ShaderProgGenerator::setShaderDir(OpenFlipper::Options::shaderDirStr());
 }
 
+void DepthPeeling::exit()
+{
+  delete peelBlend_;
+  peelBlend_ = 0;
+
+  delete peelFinal_;
+  peelFinal_ = 0;
+
+  delete peelBlendDual_;
+  peelBlendDual_ = 0;
+
+  delete peelFinalDual_;
+  peelFinalDual_ = 0;
+
+  if (peelQueryID_)
+    glDeleteQueries(1, &peelQueryID_);
+  peelQueryID_ = 0;
+
+  viewerRes_.clear();
+}
+
 void DepthPeeling::slotModeChanged( QAction *  _action) 
 {
   // Prepare Picking Debugger Flag