scaleByDistance
Gets or sets NearFarScalar Property specifying the scale of the billboard based on the distance from the camera. A billboard's scale 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 scale remains clamped to the nearest bound.