Legacy Documentation: Version 4.3.0
Physics2D.IgnoreLayerCollision
static function IgnoreLayerCollision(layer1: int, layer2: int, ignore: bool = true): void;
Parameters

layer1 ID of the first layer.
layer2 ID of the second layer.
ignore Should collisions between these layers be ignored?
Description

Choose whether to detect or ignore collisions between a specified pair of layers.

See Also: GetIgnoreLayerCollision.