Items are placed within tiles and generally will have some impact on the behavior of a beam in that tile. Items can be manipulated through the use of actions, as described in the section above. Their behaviors may also be modified by any attributes applied to the tile. Some items are collectable, meaning that when a beam collides with them, they will be converted into an action. Click or tap on an icon below to learn more about it.
- Filter
The filter item changes the color of a beam which passes through it by averaging the RBG channels of the beam with the color of the filter. For example, if the beam is blue () and the filter is red (), the result is: + = .
- Portal
The portal item transports a beam that collides with it from one tile to another, retaining the direction of travel the beam had when it entered the portal. In order for a beam to travel through a pair of portals, it must enter and exit from a direction that is not occupied by another beam. This item will utilize a mask for the user to choose an exit portal if there is more than one valid exit portal location.
- Portal (directional)
As with the portal item, a directional portal transports a beam that collides with it from one tile to another. However, unlike a standard portal, the directional portal will change the direction of the beam when it exits to the direction indicated by the arrow attached to the portal. This item will utilize a mask for the user to choose an exit portal if there is more than one valid exit portal location.
- Puzzle Piece (collectable)
The puzzle item is a collectable that will unlock access to a puzzle when a beam collides with it, converting the item into a puzzle action on collection. This item will always convert to a stuck modifier on collection, regardless of what modifiers are on the tile.
- Reflector
The reflector item changes the direction a beam is traveling when it is collided with, producing a specular reflection, or a mirrored reflection angle.
- Terminus
The terminus item is both the origin of and destination for beams. Each terminus may have up to six openings, one for each direction. Each opening is capable of sending, if toggled on, or receiving, if toggled off, beams in the color indicated by the opening. When a beam enters an available opening of matching color, a connection is formed between the origin and destination terminus. However, if the color of the beam does not match the opening color, a collision will occur.
- Wall
Wall items are attached to the edges of tiles and will stop any beams that collide with them.