add reloadShaders() in render plugin interface

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@18220 383ad7c9-94d9-4d36-a494-682f7c89f535

BasePlugin/RenderInterface.hh

@@ -158,6 +158,12 @@ class RenderInterface {
     virtual QString renderObjectsInfo(bool _outputShaderInfo) { return QString("Render object inforation not implemented in this plugin"); };
 
     
+    /** \brief Reload any renderer specific shaders
+     *
+     * This function allows the plugin to reload any renderer specific shaders.
+     */
+    virtual void reloadShaders() {  };
+
 
 };