# World:setContactFilter

Available since LÖVE 0.8.0
This method is not supported in earlier versions.

Sets a function for collision filtering.

If the group and category filtering doesn't generate a collision decision, this function gets called with the two fixtures as arguments. The function should return a boolean value where true means the fixtures will collide and false means they will pass through each other.

## Function

### Synopsis

    World:setContactFilter( filter )

### Arguments

`function filter`
  The function handling the contact filtering.

### Returns

Nothing.

## See Also

- World

##

Category:

- Functions