message: Fix calculation of bounding boxes for non-4 component attributes
  * If we only have 3 or 2 components, set the remaining bounding box values to 0
  so they aren't set at +/- FLT_MAX.
diff: @@ -2318,8 +2318,17 @@ void BufferViewer::calcBoundingData(CalcBoundingBoxData &bbox)
  for(int i = 0; i < s.columns.count(); i++)
  {
  - minOutputList.push_back(FloatVector(FLT_MAX, FLT_MAX, FLT_MAX, FLT_MAX));
  - maxOutputList.push_back(FloatVector(-FLT_MAX, -FLT_MAX, -FLT_MAX, -FLT_MAX));
  + FloatVector maxvec(FLT_MAX, FLT_MAX, FLT_MAX, FLT_MAX);
  +
  + if(s.columns[i].format.compCount == 1)
  + maxvec.y = maxvec.z = maxvec.w = 0.0;
  + else if(s.columns[i].format.compCount == 2)
  + maxvec.z = maxvec.w = 0.0;
  + else if(s.columns[i].format.compCount == 3)
  + maxvec.w = 0.0;
  +
  + minOutputList.push_back(maxvec);
  + maxOutputList.push_back(FloatVector(-maxvec.x, -maxvec.y, -maxvec.z, -maxvec.w));
  }
  QVector<CachedElData> cache;
  