Added setvisibilitylimit command.

src/cmdparser.cpp

@@ -268,6 +268,12 @@ Command* CommandParser::parseCommand()
 
         cmd = new CommandLabels(setFlags, clearFlags);
     }
+    else if (commandName == "setvisibilitylimit")
+    {
+        double mag = 6.0;
+        paramList->getNumber("magnitude", mag);
+        cmd = new CommandSetVisibilityLimit(mag);
+    }
     else
     {
         error("Unknown command name '" + commandName + "'");

src/command.cpp

@@ -297,3 +297,23 @@ void CommandLabels::process(ExecutionEnvironment& env)
         r->setLabelMode(r->getLabelMode() & ~clearFlags);
     }
 }
+
+
+////////////////
+// Set limiting magnitude command
+
+CommandSetVisibilityLimit::CommandSetVisibilityLimit(double mag) :
+    magnitude(mag)
+{
+}
+
+void CommandSetVisibilityLimit::process(ExecutionEnvironment& env)
+{
+    Renderer* r = env.getRenderer();
+    if (r != NULL)
+    {
+        r->setBrightnessBias(0.0f);
+        r->setBrightnessScale(1.0f / (magnitude + 1.0f));
+    }
+    env.getSimulation()->setFaintestVisible(magnitude);
+}

src/command.h

@@ -255,4 +255,16 @@ class CommandLabels : public InstantaneousCommand
 };
 
 
+class CommandSetVisibilityLimit : public InstantaneousCommand
+{
+ public:
+    CommandSetVisibilityLimit(double);
+    void process(ExecutionEnvironment&);
+
+ private:
+    double magnitude;
+};
+
+
+
 #endif // _COMMAND_H_