pixelOffsetScaleByDistance
Gets or sets NearFarScalar Property specifying the pixel offset of the billboard based on the distance from the camera. A billboard's pixel offset will interpolate between the NearFarScalar.nearValue and NearFarScalar.farValue while the camera distance falls within the lower and upper bounds of the specified NearFarScalar.near and NearFarScalar.far. Outside of these ranges the billboard's pixel offset remains clamped to the nearest bound.