message: changing intial volume step to adaptive
diff: @@ -108,8 +108,11 @@ vec4f SciVisRenderer_computeVolumeInterval(const SciVisRenderer *uniform rendere
  ray.t0 = tBegin;
  float tSkipped = -1; //for adaptive, skip adapting sampling rate up to this value
  vec4f intervalColor = make_vec4f(0.f);
  + if (volume->adaptiveSampling)
  + volume->intersectAdaptive(volume, ray, volume->adaptiveMaxSamplingRate);
  + else
  volume->intersect(volume,ray);
  - tBegin = ray.t0+renderer->volumeEpsilon;
  + tBegin = ray.t0+renderer->super.epsilon;
  // const uniform float oneOverQuality = (1.f/quality);
  float samplingRate = volume->samplingRate*quality;
  float lastSample = -1.f;
  