pixelOffsetScaleByDistance

Gets or sets near and far pixel offset scaling properties of a Billboard based on the billboard's distance from the camera. A billboard's pixel offset will be scaled 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 scale remains clamped to the nearest bound. If undefined, pixelOffsetScaleByDistance will be disabled.

// Example 1.
// Set a billboard's pixel offset scale to 0.0 when the
// camera is 1500 meters from the billboard and scale pixel offset to 10.0 pixels
// in the y direction the camera distance approaches 8.0e6 meters.
b.pixelOffset = new Cartesian2(0.0, 1.0);
b.pixelOffsetScaleByDistance = new NearFarScalar(1.5e2, 0.0, 8.0e6, 10.0);

// Example 2.
// disable pixel offset by distance
b.pixelOffsetScaleByDistance = undefined;

See also