Lighting Gel Pack 1 for Bryce is 40 Gels (20 gobo patterns in hard & soft edges, 40 in all.) that mimic the silhouettes created when light passes through a window, door, vent or sidewalk grate. Recreate that 'Film Noir' look with some venitian blinds. Make your Halloween scene even more spooky with tall french doors or a sidewalk grate shadow. Create the illusion of a whole bank of institutional windows just out of frame bathing your scene in light and shadow. Just apply the Gels to individual lights in the Bryce Lighting Lab, then place them wherever you need them to create a theatrical lighting effect. This is an amazing time saver and a 'must have' add on for Bryce, at a great price.