About Wake Waves Generation

Hi, iam facing problems in wake wave generation in Triton Ocean.Iam using following code snippet in the draw implementation function in triton drawable.cpp file

   Triton::WakeGeneratorParameters parameters;
             parameters.numHullSprays     = 10.0;
             parameters.spraySizeScale    = 10.0;
             parameters.sprayEffects        = true;
             parameters.bowWaveOffset   = 100.0;
             parameters.bowSprayOffset  = 100.0;
             parameters.beamWidth         = 20.0;
             parameters.length                = 100.0;
             parameters.propWash          = true;
             parameters.propWashOffset  = 100.0;
     Triton::WakeGenerator *ship         = new Triton::WakeGenerator(_ocean,parameters);
     ship->SetParameters(parameters);
    ship->Update(Triton::Vector3(0.0, 0.0, 0.0), Triton::Vector3(2.8,0.0, 5.8), 20.0, 10.0, true);
   

Using this code my output is blocking how can i solve this and how can i achieve wake waves to the ship backside upon movement of the ship.For Movement of ship iam using keyboard pressing event and parameters are not setting how to set parameters.

Thanks, R.Rambabu