message: updating volume / renderer settings.
diff: @@ -126,12 +126,8 @@ OSPVolume createRandomVolume(size_t numPoints, size_t volumeDimension)
  // set the transfer function on the volume
  ospSetObject(volume, "transferFunction", transferFunction);
  - // other volume attributes attributes
  - ospSet1f(volume, "samplingRate", 1.f);
  - //ospSet1i(volume, "gradientShadingEnabled", 1);
  - //ospSet1i(volume, "preIntegration", 1);
  - //ospSet1i(volume, "singleShade", 1);
  - ospSet1i(volume, "adaptiveSampling", 0);
  + // enable gradient shading
  + ospSet1i(volume, "gradientShadingEnabled", 1);
  // commit the volume
  ospCommit(volume);
  @@ -175,7 +171,6 @@ OSPRenderer createRenderer()
  ospCommit(lightsData);
  // complete setup of renderer
  - ospSet1i(renderer, "aoSamples", 1);
  ospSetData(renderer, "lights", lightsData);
  ospCommit(renderer);
  