trigger the Annotation Fade on custom div’s

Hi,
You can use raycast puzzle to cast rays from the camera to the annotated object. If there are no intersections occur, your custom annotation would be fully opaque. If there is some, the annotation would be faded.

Here it is:

The tricky part is to raycast not from the camera to the object but from the object to the camera (so the direction should be negated). Also pay attention that in this example we cast rays for all objects located on the scene (hence the “Scene” input). If there is a possibility that some objects will be located behind the camera, you should restrict the allowed raycast set by a group or a list of objects.